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  • ✇Semiconductor Engineering
  • Keeping Up With New ADAS And IVI SoC TrendsHezi Saar
    In the automotive industry, AI-enabled automotive devices and systems are dramatically transforming the way SoCs are designed, making high-quality and reliable die-to-die and chip-to-chip connectivity non-negotiable. This article explains how interface IP for die-to-die connectivity, display, and storage can support new developments in automotive SoCs for the most advanced innovations such as centralized zonal architecture and integrated ADAS and IVI applications. AI-integrated ADAS SoCs The aut
     

Keeping Up With New ADAS And IVI SoC Trends

Od: Hezi Saar
1. Srpen 2024 v 09:10

In the automotive industry, AI-enabled automotive devices and systems are dramatically transforming the way SoCs are designed, making high-quality and reliable die-to-die and chip-to-chip connectivity non-negotiable. This article explains how interface IP for die-to-die connectivity, display, and storage can support new developments in automotive SoCs for the most advanced innovations such as centralized zonal architecture and integrated ADAS and IVI applications.

AI-integrated ADAS SoCs

The automotive industry is adopting a new electronic/electric (EE) architecture where a centralized compute module executes multiple applications such as ADAS and in-vehicle infotainment (IVI). With the advent of EVs and more advanced features in the car, the new centralized zonal architecture will help minimize complexity, maximize scalability, and facilitate faster decision-making time. This new architecture is demanding a new set of SoCs on advanced process technologies with very high performance. More traditional monolithic SoCs for single functions like ADAS are giving way to multi-die designs where various dies are connected in a single package and placed in a system to perform a function in the car. While such multi-die designs are gaining adoption, semiconductor companies must remain cost-conscious as these ADAS SoCs will be manufactured at high volumes for a myriad of safety levels. One example is the automated driving central compute system. The system can include modules for the sensor interface, safety management, memory control and interfaces, and dies for CPU, GPU, and AI accelerator, which are then connected via a die-to-die interface such as the Universal Chiplet Interconnect Express (UCIe). Figure 1 illustrates how semiconductor companies can develop SoCs for such systems using multi-die designs. For a base ADAS or IVI SoC, the requirement might just be the CPU die for a level 2 functional safety. A GPU die can be added to the base CPU die for a base ADAS or premium IVI function at a level 2+ driving automation. To allow more compute power for AI workloads, an NPU die can be added to the base CPU or the base CPU and GPU dies for level 3/3+ functional safety. None of these scalable scenarios are possible without a solution for die-to-die connectivity.

Fig. 1: A simplified view of automotive systems using multi-die designs.

The adoption of UCIe for automotive SoCs

The industry has come together to define, develop, and deploy the UCIe standard, a universal interconnect at the package-level. In a recent news release, the UCIe Consortium announced “updates to the standard with additional enhancements for automotive usages – such as predictive failure analysis and health monitoring – and enabling lower-cost packaging implementations.” Figure 2 shows three use cases for UCIe. The first use case is for low-latency and coherency where two Network on a Chip (NoC) are connected via UCIe. This use case is mainly for applications requiring ADAS computing power. The second automotive use case is when memory and IO are split into two separate dies and are then connected to the compute die via CXL and UCIe streaming protocols. The third automotive use case is very similar to what is seen in HPC applications where a companion AI accelerator die is connected to the main CPU die via UCIe.

Fig. 2: Examples of common and new use cases for UCIe in automotive applications.

To enable such automotive use cases, UCIe offers several advantages, all of which are supported by the Synopsys UCIe IP:

  • Latency optimized architecture: Flit-Aware Die-to-Die Interface (FDI) or Raw Die-to-Die Interface (RDI) operate with local 2GHz system clock. Transmitter and receiver FIFOs accommodate phase mismatch between clock domains. There is no clock domain crossing (CDC) between the PHY and Adapter layers for minimum latency. The reference clock has the same frequency for the two dies.
  • Power-optimized architecture: The transmitter provides the CMOS driver without source termination. IT offers programmable drive strength without a Feed-Forward Equalizer (FFE). The receiver provides a continuous-time linear equalizer (CTLE) without VGA and decision feedback equalizer (DFE), clock forwarding without Clock and Data Recovery (CDR), and optional receiver termination.
  • Reliability and test: Signal integrity monitors track the performance of the interconnect through the chip’s lifecycle. This can monitor inaccessible paths in the multi-die package, test and repair the PHY, and execute real time reporting for preventative maintenance.

Synopsys UCIe IP is integrated with Synopsys 3DIC Compiler, a unified exploration-to-signoff platform. The combination eases package design and provides a complete set of IP deliverables, automated UCIe routing for better quality of results, and reference interposer design for faster integration.

Fig. 3: Synopsys 3DIC Compiler.

New automotive SoC design trends for IVI applications

OEMs are attracting consumers by providing the utmost in cockpit experience with high-resolution, 4K, pillar-to-pillar displays. Multi-Stream Transport (MTR) enables a daisy-chained display topology using a single port, which consists of a single GPU, one DP TX controller, and PHY, to display images on multiple screens in the car. This revision clarifies the components involved and maintains the original meaning. This daisy-chained set up simplifies the display wiring in the car. Figure 4 illustrates how connectivity in the SoC can enable multi-display environments in the car. Row 1: Multiple image sources from the application processor are fed into the daisy-chained display set up via the DisplayPort (DP) MTR interface. Row 2: Multiple image sources from the application processor are fed to the daisy-chained display set up but also to the left or right mirrors, all via the DP MTR interface. Row 3: The same set up in row 2 can be executed via the MIPI DSI or embedded DP MTR interfaces, depending on display size and power requirements.

An alternate use case is USB/DP. A single USB port can be used for silicon lifecycle management, sentry mode, test, debug, and firmware download. USB can be used to avoid the need for very large numbers of test pings, speed up test by exceeding GPIO test pin data rates, repeat manufacturing test in-system and in-field, access PVT monitors, and debug.

Fig. 4: Examples of display connectivity in software-defined vehicles.

ISO/SAE 21434 automotive cybersecurity

ISO/SAE 21434 Automotive Cybersecurity is being adopted by industry leaders as mandated by the UNECE R155 regulation. Starting in July 2024, automotive OEMs must comply with the UNECE R155 automotive cybersecurity regulation for all new vehicles in Europe, Japan, and Korea.

Automotive suppliers must develop processes that meet the automotive cybersecurity requirements of ISO/SAE 21434, addressing the cybersecurity perspective in the engineering of electrical and electronic (E/E) systems. Adopting this methodology involves embracing a cybersecurity culture which includes developing security plans, setting security goals, conducting engineering reviews and implementing mitigation strategies.

The industry is expected to move towards enabling cybersecurity risk-managed products to mitigate the risks associated with advancement in connectivity for software-defined vehicles. As a result, automotive IP needs to be ready to support these advancements.

Synopsys ARC HS4xFS Processor IP has achieved ISO/SAE 21434 cybersecurity certification by SGS-TṺV Saar, meeting stringent automotive regulatory requirements designed to protect connected vehicles from malicious cyberattacks. In addition, Synopsys has achieved certification of its IP development process to the ISO/SAE 21434 standard to help ensure its IP products are developed with a security-first mindset through every phase of the product development lifecycle.

Conclusion

The transformation to software-defined vehicles marks a significant shift in the automotive industry, bringing together highly integrated systems and AI to create safer and more efficient vehicles while addressing sophisticated user needs and vendor serviceability. New trends in the automotive industry are presenting opportunities for innovations in ADAS and IVI SoC designs. Centralized zonal architecture, multi-die design, daisy-chained displays, and integration of ADAS/IVI functions in a single SoC are among some of the key trends that the automotive industry is tracking. Synopsys is at the forefront of automotive SoC innovations with a portfolio of silicon-proven automotive IP for the highest levels of functional safety, security, quality, and reliability. The IP portfolio is developed and assessed specifically for ISO 26262 random hardware faults and ASIL D systematic. To minimize cybersecurity risks, Synopsys is developing IP products as per the ISO/SAE 21434 standard to provide automotive SoC developers a safe, reliable, and future proof solution.

The post Keeping Up With New ADAS And IVI SoC Trends appeared first on Semiconductor Engineering.

  • ✇Semiconductor Engineering
  • Software-Defined Vehicle Momentum GrowsAnn Mutschler
    Experts at the Table: The automotive ecosystem is undergoing a transformation toward software-defined vehicles, spurring new architectures with more software. Semiconductor Engineering sat down to discuss the impact of these changes with Suraj Gajendra, vice president of products and solutions in Arm‘s automotive line of business; Chuck Alpert, R&D automotive fellow at Cadence; Steve Spadoni, zone controller and power distribution application manager at Infineon; Rebeca Delgado, chief techno
     

Software-Defined Vehicle Momentum Grows

9. Květen 2024 v 09:06

Experts at the Table: The automotive ecosystem is undergoing a transformation toward software-defined vehicles, spurring new architectures with more software. Semiconductor Engineering sat down to discuss the impact of these changes with Suraj Gajendra, vice president of products and solutions in Arm‘s automotive line of business; Chuck Alpert, R&D automotive fellow at Cadence; Steve Spadoni, zone controller and power distribution application manager at Infineon; Rebeca Delgado, chief technology officer and principal AI engineer at Intel Automotive; Cyril Clocher, senior director in the automotive product line for high-performance computing at Renesas; David Fritz, vice president, hybrid and virtual systems at Siemens EDA; and Marc Serughetti, senior director, systems design group at Synopsys. What follows are excerpts of that discussion.

L-R: Arm’s Gajendra, Cadence’s Alpert, Infineon’s Spadoni, Intel’s Delgado, Renesas’ Clocher, Siemens’ Fritz, Synopsys’ Serughetti.

L-R: Arm’s Gajendra, Cadence’s Alpert, Infineon’s Spadoni, Intel’s Delgado, Renesas’ Clocher, Siemens’ Fritz, Synopsys’ Serughetti.

SE: The automotive ecosystem is undergoing a technology evolution the likes of which has not been seen, including the move to software-defined vehicles. To set a baseline for this discussion, what is your definition of an SDV?

Gajendra: A software-defined vehicle is a concept, a trend, an idea, where the whole ecosystem can drive new capabilities and new user experiences into the car, even after it rolls out of the showroom or dealership. It’s a pretty loaded concept. There’s a lot of infrastructure that needs to come together, such as software development in the cloud, seamless deployment of that software development onto the car, the whole deployment of over-the-air updates, and the connectivity. In short, the concept of a software-defined vehicle is expecting a world where we can drive new experiences, new capabilities, and new features into the car throughout its lifetime.

Alpert: In thinking about what SDV means, one example is the battery — especially in an EV. I’m not talking about the technology of the battery that’s evolved, but rather the idea that in the past when you wanted to charge your car in your garage and you were worried about starting a fire, you’d think, ‘No, don’t do that because your whole house could burn down.’ The idea is that in the past, maybe we might put a temperature sensor on the battery, but now we actually have software that can monitor it. It might even have AI to predict if the battery is reaching some state that might cause a fire in the future. You also might have something that connects to the power grid and learns when is a good time to charge, because it’s a low-usage period so it’s cheaper. This is just one part of the car, but you can imagine a whole bunch of software that you want to put on top of it in order to connect to the universe. You need a software-defined vehicle platform in order for this, or in all the other parts of your car, to communicate with the world and provide the best user experience.

Spadoni: Infineon’s definition of a software-defined vehicle is a redefining of architecture — specifically, electrical and electronic architecture, feature allocation, and the entire topology of the vehicle, from power generation and storage to power distribution and high compute. It really means new electrical architectures, and it has consequences for the business model of every OEM and Tier 1 involved. It’s a major change to previous methodologies in the last 30 years.

Delgado: Software-defined vehicle is not just over-the-air updates. It’s truly a new methodology and a new philosophy for how to architect every ingredient of the vehicle to continue to deliver value over time, in which the value is very tightly attached to the software that delivers the user experience. Ultimately, this architecture must enable the different practices on how to deliver this new value over time. What’s very interesting is that these practices of moving to software-defined architecture has been done by many other industries already. Intel has a ton of heritage, and actually helped those industries transform. That transformation is truly what we’re observing here. It’s an incredible opportunity, and possibly a crisis if not done right.

Clocher: To apply an analogy here, the car is the new smartphone. But for us, it’s more than that. I’ve heard about the platform, yes, and it’s the major architecture evolution that we’ll see in the next decade. For us at Renesas, it will be a journey that will take time to enhance the user experience, to generate new revenue streams for the industry as it moves from decentralized to centralized classic compute with zonal architecture. We can apply all those buzzwords to a software-defined vehicle. Those platform will need big computers and heavy complex hardware solutions and this will generate evolutions, upgrades to the car during its entire lifetime, but underneath we know — at least at Renesas, and certainly at some other players and silicon vendors — that this will need a huge amount of hardware resources to manage what we have in mind to deploy this platform.

Fritz: I see software-defined vehicles a bit differently than what’s been mentioned so far. For many years, you’d have the hardware team doing their design, and the software team doing their design, and it all needs to come together. There’s an English natural language discussion about what needs to happen, and as we all know, that never really goes terribly well. In automotive that becomes an integration storm, and it is a nightmare. With the new compute requirements that have been mentioned already, that just compounds the issue. So the way I see this is that we tend, as people who have an engineering background, to dive into how we’re going to do things. We hear ‘software-defined vehicle,’ we immediately think about how to do that. There’s not a lot of thought about why it needs to be done, and what needs to happen. We jump into the ‘how’ too early, and a lot of the discussion here is exemplary of that kind of approach. When I’m looking at software-defined vehicles, I’m looking at why it’s important that the software needs to run effectively on a piece of hardware. And for that hardware, why is it important for it to actually operate properly on the software? Then you can decide how to put together a new methodology that’s going to bring those things together. In the past, it’s been called hardware/software co-design. There have been attempts many times, and as has been mentioned, other industries have made this transition. What’s unique about automotive is that it’s not just one transition that needs to happen. It’s hundreds or thousands of transitions. The ecosystem needs to be turned upside down, which we’re seeing happen right now, and you need to bring all that together. It really is a methodology where you need the tooling, you need the processes, you need the thinking, you need the organizations to change so that they can make this transition in a realistic way. SDV is a huge transition. It is a way for the automotive industry to morph into something that has longevity and can meet customer expectations, which it really hasn’t met for some time now.

Serughetti: At the end of the day, if we look starting at the top from our perspective, SDV is a means to bring and enhance the car experience for the customer. That’s the end result that the OEMs look at, but they look at it from the perspective of how that improves the OEM efficiencies, and how that creates new business opportunities. The way we look at it, and what’s important, is the impact it has on the industry, the impact on the processes, on the methodologies, on the people, on the ecosystem, on the technology. It’s really a transformation of the automotive market that is going to fundamentally change how the industry moves forward and bring the OEM into a world in which they are really looking at how they become efficient in delivering cars, how they bring new features, but at the same time, how they evolve their business as well.

SE: As you’ve all described, SDV requires many inter-dependencies, and the entire ecosystem has to have an understanding of the ‘why,’ which should then lead back to laying out the plan for how to get there. Where does the ecosystem stand today in terms of realizing SDV?

Fritz: OEMs have decided in the last few years that they’ve got to take control of their own destiny. They cannot simply take what the suppliers provide. They need a methodology — like this whole SDV concept, and any tooling necessary to provide that — to push down into their suppliers, such that, ‘Here’s what I need. If you can’t do this for me, I will go find someone that will.’ This is not the old ecosystem that bubbled up from the IP to the Tier 2s, to the Tier 1s, and then to the OEMs, which gave them limited choices to go from. So when I say, “Turn the ecosystem upside down,” that’s what is happening. But every OEM has their own ecosystem, and they’re not all in the same place. Even region-to-region, they can be very different.

Delgado: This is a critical discussion, and effectively where the industry has to eventually settle. The magnitude of the transformation of the ecosystem includes roles in the technology evolution. The silicon content is expected to quadruple over the next few years in the vehicle for defining the in-cabin experience of the end user. At the end of the day, the complexity of the transition of roles is of such magnitude that the proprietary, fragmented, and broken approaches that David articulated are really not going to enable the industry to transform at the speed it requires to deliver and meet the experiences. But more than anything, they are not going to address the actual technology changes necessary to implement and allow for this value delivery mechanism. At the end of the day, this is where Intel really believes collaboration is key, and anybody who wants to participate in this ecosystem must provide scalability — also known as top-to-bottom support of the different product lines that our OEMs and Tier 1s are having to support, versus a broken-up approach on these ever-evolving higher performance and higher performance compute needs. It has to be future-proof, because you’re going to launch the vehicle eventually. So certain hardware has to be future-proofed to a certain affordability envelope, and there has to be a strategy around that. And then the ecosystem and that collaboration must be able to deliver that aggregation. It has to be done with certain anchoring technology that will allow us to deliver that performance. Collaboration is key in the sense that these technologies cannot be single-handedly owned, developed, let alone owned, defined, developed, and integrated by OEMs in silos with a proprietary end-to-end architecture definition. There obviously will be differentiations on the actual implementation, but the technologies at large have to have a sense of reuse, particularly from other verticals that have already done software-defined transformations and then tuned in the right ways toward the automotive requirements.

Spadoni: There are probably a wide variety of implementations. At Infineon, we partner with OEMs and Tier 1s and we see different approaches. For example, General Motors has more of a modular approach that emulates what happened in in the mobile phone space. It seems that Ford has a more pragmatic approach, along with Stellantis, but all of them are facing very similar challenges in that affordability has become a big problem. There are multiple generations of implementations that are going to occur, and you’ll see a striving toward how to pay for this extra hardware. It leads to tradeoffs in implementations of other systems that have to have savings in order for them to afford these vehicles. No one ever goes into a dealership and says, ‘Give me a software-defined vehicle.’ Everyone’s looking for value, and you can see it now with volumes going down. There’s a saturation of people buying at the high level. The OEMs want to get more sales, which means they’ll have to go to the lower-cost-value vehicles, and that’s going to affect the electrical and electronic architectures and the software-defined vehicle.

Clocher: What we’re seeing I would summarize as the impact on the ecosystem. We’re moving to an OEM-centric ecosystem. One size does not fit all, meaning OEMs will have their different tastes, their different definitions of levels of integration they want to have in their software-defined vehicle — especially given more complex tasks that we all have to do, rather than the challenge we have to solve, because we’re not talking about a common umbrella of software-defined vehicle. But it really does mean different implementations and different meanings for OEM A from OEM B. I would fully agree with David and Steve that we are far from having a common understanding of, at least, the market itself. And that’s fine, because this will bring differentiation, and ultimately that’s why a customer will go to Dealership A versus Dealership B. This is what the industry wants to see — continue to differentiate, continue to add value to the ultimate product, which is the car.

Serughetti: The important point in all this is, of course, you’re breaking the model that exists today. That’s one of the big challenges. We used to have Tier 1s that were building boxes, and delivering software. This was a complete black box. When it would go to integration, there were all sorts of problems. And now you’re going to break this? The challenge for the OEM is how they do this. They want to control software, but are they equipped to do this today? We see the problems today that some of the legacy OEMs have in setting up their software organizations, the challenges of CARIAD and all such organizations that are trying to do this. It’s not easy to change those companies. Of course, the new entrants don’t have this problem because they are coming from a brand new design versus the ones that deal with legacy. So for the OEM, it’s about how to take control of the software. What does that mean in terms of the processes, in terms of agile development, digital twins, and all of these technologies everybody’s talking about? The other side is, ‘It’s all nice, this software,’ but this software runs on all the companies that are delivering hardware, and that becomes essential to it. You can have the best software, but if your hardware is not there to support performance, power, and all of those aspects, you’re not going to be successful. So the ecosystem is evolving how hardware, software, and all of this comes together. The OEM wants to be the central point. That’s what we’re talking about in terms of the process methodology aspects that are making this transition evolve.

Gajendra: Where are we in this journey? How far have we come? And where are we going? Going back to the point that David mentioned earlier about supply chain evolving and the supply chain turned upside down, five years ago, if we sat here in this sort of a panel and discussed software-defined vehicles, the conversation would have been entirely different. It would have been stuck with the traditional supply chain that we’ve seen for the last 35 or 40 years in the automotive industry. There are fundamentally two aspects here. The supply chain is evolving, and the infrastructure that we, as a community — this team, for example, and many others in the community — are trying to enable is going to be key to making our EDA partners happy. The use of virtual platforms today in the cloud to try and shift left and develop and validate some of these technologies and software wasn’t even there five years ago, so we’ve come a long way. We’ve made a lot of progress together as an industry. Yes, we have a long way to go until we actually have a truly software-defined vehicle. We can go and ask for a software-defined vehicle in the dealership. But the changes we are seeing in terms of all sorts of technology providers trying to make sure that the technology that we eventually will have in the hardware is provided in some sort of virtual form, be it fast models or whatever it is in the cloud, for the vast majority of software ecosystem in automotive this is a big change. I was at Embedded World, and the amount of virtual platforms and the demos that people were actually showing — silicon partners like we have here, Intel, Renesas, Infineon, EDA companies — pointed to a strong movement of, ‘Let’s build the infrastructure that we can build, and then provide that infrastructure to the OEMs to take it from there.’ There is a lot of work going on. Together we will make the infrastructure across the board, be it virtual platform or others, richer and more capable.

Alpert: For sure, OEMs have to control their own destiny. In the past, they would do it by differentiating maybe because they had better engine performance, or some other feature. But going forward, the differentiation is going to be their software. Whoever can make software that will provide additional value, and brand it, that’s going to be the differentiator and that’s the trend. In terms of how you get there, a shared ecosystem is important. SOAFEE is a potential way that, together with virtual platforms, you can provide a shared ecosystem for development, but still allow everyone to differentiate and plug-and-play. That’s one reason we’re working closely with Arm on trying to have a reference design specifically for this purpose. But again, we’re not saying, ‘This is the design you use. This is how you do it.’ That’s not it. The point is, let’s start somewhere, and then people can start swapping out pieces and doing different things. As long as OEMs can plug-and-play, then they can still differentiate. But they don’t have to invent everything themselves, which would be too costly.

Related Reading
Software-Defined Vehicles Ready To Roll
New approach could have big effects on cost, safety, security, and time to market.

The post Software-Defined Vehicle Momentum Grows appeared first on Semiconductor Engineering.

  • ✇Semiconductor Engineering
  • Software-Defined Vehicle Momentum GrowsAnn Mutschler
    Experts at the Table: The automotive ecosystem is undergoing a transformation toward software-defined vehicles, spurring new architectures with more software. Semiconductor Engineering sat down to discuss the impact of these changes with Suraj Gajendra, vice president of products and solutions in Arm‘s automotive line of business; Chuck Alpert, R&D automotive fellow at Cadence; Steve Spadoni, zone controller and power distribution application manager at Infineon; Rebeca Delgado, chief techno
     

Software-Defined Vehicle Momentum Grows

9. Květen 2024 v 09:06

Experts at the Table: The automotive ecosystem is undergoing a transformation toward software-defined vehicles, spurring new architectures with more software. Semiconductor Engineering sat down to discuss the impact of these changes with Suraj Gajendra, vice president of products and solutions in Arm‘s automotive line of business; Chuck Alpert, R&D automotive fellow at Cadence; Steve Spadoni, zone controller and power distribution application manager at Infineon; Rebeca Delgado, chief technology officer and principal AI engineer at Intel Automotive; Cyril Clocher, senior director in the automotive product line for high-performance computing at Renesas; David Fritz, vice president, hybrid and virtual systems at Siemens EDA; and Marc Serughetti, senior director, systems design group at Synopsys. What follows are excerpts of that discussion.

L-R: Arm’s Gajendra, Cadence’s Alpert, Infineon’s Spadoni, Intel’s Delgado, Renesas’ Clocher, Siemens’ Fritz, Synopsys’ Serughetti.

L-R: Arm’s Gajendra, Cadence’s Alpert, Infineon’s Spadoni, Intel’s Delgado, Renesas’ Clocher, Siemens’ Fritz, Synopsys’ Serughetti.

SE: The automotive ecosystem is undergoing a technology evolution the likes of which has not been seen, including the move to software-defined vehicles. To set a baseline for this discussion, what is your definition of an SDV?

Gajendra: A software-defined vehicle is a concept, a trend, an idea, where the whole ecosystem can drive new capabilities and new user experiences into the car, even after it rolls out of the showroom or dealership. It’s a pretty loaded concept. There’s a lot of infrastructure that needs to come together, such as software development in the cloud, seamless deployment of that software development onto the car, the whole deployment of over-the-air updates, and the connectivity. In short, the concept of a software-defined vehicle is expecting a world where we can drive new experiences, new capabilities, and new features into the car throughout its lifetime.

Alpert: In thinking about what SDV means, one example is the battery — especially in an EV. I’m not talking about the technology of the battery that’s evolved, but rather the idea that in the past when you wanted to charge your car in your garage and you were worried about starting a fire, you’d think, ‘No, don’t do that because your whole house could burn down.’ The idea is that in the past, maybe we might put a temperature sensor on the battery, but now we actually have software that can monitor it. It might even have AI to predict if the battery is reaching some state that might cause a fire in the future. You also might have something that connects to the power grid and learns when is a good time to charge, because it’s a low-usage period so it’s cheaper. This is just one part of the car, but you can imagine a whole bunch of software that you want to put on top of it in order to connect to the universe. You need a software-defined vehicle platform in order for this, or in all the other parts of your car, to communicate with the world and provide the best user experience.

Spadoni: Infineon’s definition of a software-defined vehicle is a redefining of architecture — specifically, electrical and electronic architecture, feature allocation, and the entire topology of the vehicle, from power generation and storage to power distribution and high compute. It really means new electrical architectures, and it has consequences for the business model of every OEM and Tier 1 involved. It’s a major change to previous methodologies in the last 30 years.

Delgado: Software-defined vehicle is not just over-the-air updates. It’s truly a new methodology and a new philosophy for how to architect every ingredient of the vehicle to continue to deliver value over time, in which the value is very tightly attached to the software that delivers the user experience. Ultimately, this architecture must enable the different practices on how to deliver this new value over time. What’s very interesting is that these practices of moving to software-defined architecture has been done by many other industries already. Intel has a ton of heritage, and actually helped those industries transform. That transformation is truly what we’re observing here. It’s an incredible opportunity, and possibly a crisis if not done right.

Clocher: To apply an analogy here, the car is the new smartphone. But for us, it’s more than that. I’ve heard about the platform, yes, and it’s the major architecture evolution that we’ll see in the next decade. For us at Renesas, it will be a journey that will take time to enhance the user experience, to generate new revenue streams for the industry as it moves from decentralized to centralized classic compute with zonal architecture. We can apply all those buzzwords to a software-defined vehicle. Those platform will need big computers and heavy complex hardware solutions and this will generate evolutions, upgrades to the car during its entire lifetime, but underneath we know — at least at Renesas, and certainly at some other players and silicon vendors — that this will need a huge amount of hardware resources to manage what we have in mind to deploy this platform.

Fritz: I see software-defined vehicles a bit differently than what’s been mentioned so far. For many years, you’d have the hardware team doing their design, and the software team doing their design, and it all needs to come together. There’s an English natural language discussion about what needs to happen, and as we all know, that never really goes terribly well. In automotive that becomes an integration storm, and it is a nightmare. With the new compute requirements that have been mentioned already, that just compounds the issue. So the way I see this is that we tend, as people who have an engineering background, to dive into how we’re going to do things. We hear ‘software-defined vehicle,’ we immediately think about how to do that. There’s not a lot of thought about why it needs to be done, and what needs to happen. We jump into the ‘how’ too early, and a lot of the discussion here is exemplary of that kind of approach. When I’m looking at software-defined vehicles, I’m looking at why it’s important that the software needs to run effectively on a piece of hardware. And for that hardware, why is it important for it to actually operate properly on the software? Then you can decide how to put together a new methodology that’s going to bring those things together. In the past, it’s been called hardware/software co-design. There have been attempts many times, and as has been mentioned, other industries have made this transition. What’s unique about automotive is that it’s not just one transition that needs to happen. It’s hundreds or thousands of transitions. The ecosystem needs to be turned upside down, which we’re seeing happen right now, and you need to bring all that together. It really is a methodology where you need the tooling, you need the processes, you need the thinking, you need the organizations to change so that they can make this transition in a realistic way. SDV is a huge transition. It is a way for the automotive industry to morph into something that has longevity and can meet customer expectations, which it really hasn’t met for some time now.

Serughetti: At the end of the day, if we look starting at the top from our perspective, SDV is a means to bring and enhance the car experience for the customer. That’s the end result that the OEMs look at, but they look at it from the perspective of how that improves the OEM efficiencies, and how that creates new business opportunities. The way we look at it, and what’s important, is the impact it has on the industry, the impact on the processes, on the methodologies, on the people, on the ecosystem, on the technology. It’s really a transformation of the automotive market that is going to fundamentally change how the industry moves forward and bring the OEM into a world in which they are really looking at how they become efficient in delivering cars, how they bring new features, but at the same time, how they evolve their business as well.

SE: As you’ve all described, SDV requires many inter-dependencies, and the entire ecosystem has to have an understanding of the ‘why,’ which should then lead back to laying out the plan for how to get there. Where does the ecosystem stand today in terms of realizing SDV?

Fritz: OEMs have decided in the last few years that they’ve got to take control of their own destiny. They cannot simply take what the suppliers provide. They need a methodology — like this whole SDV concept, and any tooling necessary to provide that — to push down into their suppliers, such that, ‘Here’s what I need. If you can’t do this for me, I will go find someone that will.’ This is not the old ecosystem that bubbled up from the IP to the Tier 2s, to the Tier 1s, and then to the OEMs, which gave them limited choices to go from. So when I say, “Turn the ecosystem upside down,” that’s what is happening. But every OEM has their own ecosystem, and they’re not all in the same place. Even region-to-region, they can be very different.

Delgado: This is a critical discussion, and effectively where the industry has to eventually settle. The magnitude of the transformation of the ecosystem includes roles in the technology evolution. The silicon content is expected to quadruple over the next few years in the vehicle for defining the in-cabin experience of the end user. At the end of the day, the complexity of the transition of roles is of such magnitude that the proprietary, fragmented, and broken approaches that David articulated are really not going to enable the industry to transform at the speed it requires to deliver and meet the experiences. But more than anything, they are not going to address the actual technology changes necessary to implement and allow for this value delivery mechanism. At the end of the day, this is where Intel really believes collaboration is key, and anybody who wants to participate in this ecosystem must provide scalability — also known as top-to-bottom support of the different product lines that our OEMs and Tier 1s are having to support, versus a broken-up approach on these ever-evolving higher performance and higher performance compute needs. It has to be future-proof, because you’re going to launch the vehicle eventually. So certain hardware has to be future-proofed to a certain affordability envelope, and there has to be a strategy around that. And then the ecosystem and that collaboration must be able to deliver that aggregation. It has to be done with certain anchoring technology that will allow us to deliver that performance. Collaboration is key in the sense that these technologies cannot be single-handedly owned, developed, let alone owned, defined, developed, and integrated by OEMs in silos with a proprietary end-to-end architecture definition. There obviously will be differentiations on the actual implementation, but the technologies at large have to have a sense of reuse, particularly from other verticals that have already done software-defined transformations and then tuned in the right ways toward the automotive requirements.

Spadoni: There are probably a wide variety of implementations. At Infineon, we partner with OEMs and Tier 1s and we see different approaches. For example, General Motors has more of a modular approach that emulates what happened in in the mobile phone space. It seems that Ford has a more pragmatic approach, along with Stellantis, but all of them are facing very similar challenges in that affordability has become a big problem. There are multiple generations of implementations that are going to occur, and you’ll see a striving toward how to pay for this extra hardware. It leads to tradeoffs in implementations of other systems that have to have savings in order for them to afford these vehicles. No one ever goes into a dealership and says, ‘Give me a software-defined vehicle.’ Everyone’s looking for value, and you can see it now with volumes going down. There’s a saturation of people buying at the high level. The OEMs want to get more sales, which means they’ll have to go to the lower-cost-value vehicles, and that’s going to affect the electrical and electronic architectures and the software-defined vehicle.

Clocher: What we’re seeing I would summarize as the impact on the ecosystem. We’re moving to an OEM-centric ecosystem. One size does not fit all, meaning OEMs will have their different tastes, their different definitions of levels of integration they want to have in their software-defined vehicle — especially given more complex tasks that we all have to do, rather than the challenge we have to solve, because we’re not talking about a common umbrella of software-defined vehicle. But it really does mean different implementations and different meanings for OEM A from OEM B. I would fully agree with David and Steve that we are far from having a common understanding of, at least, the market itself. And that’s fine, because this will bring differentiation, and ultimately that’s why a customer will go to Dealership A versus Dealership B. This is what the industry wants to see — continue to differentiate, continue to add value to the ultimate product, which is the car.

Serughetti: The important point in all this is, of course, you’re breaking the model that exists today. That’s one of the big challenges. We used to have Tier 1s that were building boxes, and delivering software. This was a complete black box. When it would go to integration, there were all sorts of problems. And now you’re going to break this? The challenge for the OEM is how they do this. They want to control software, but are they equipped to do this today? We see the problems today that some of the legacy OEMs have in setting up their software organizations, the challenges of CARIAD and all such organizations that are trying to do this. It’s not easy to change those companies. Of course, the new entrants don’t have this problem because they are coming from a brand new design versus the ones that deal with legacy. So for the OEM, it’s about how to take control of the software. What does that mean in terms of the processes, in terms of agile development, digital twins, and all of these technologies everybody’s talking about? The other side is, ‘It’s all nice, this software,’ but this software runs on all the companies that are delivering hardware, and that becomes essential to it. You can have the best software, but if your hardware is not there to support performance, power, and all of those aspects, you’re not going to be successful. So the ecosystem is evolving how hardware, software, and all of this comes together. The OEM wants to be the central point. That’s what we’re talking about in terms of the process methodology aspects that are making this transition evolve.

Gajendra: Where are we in this journey? How far have we come? And where are we going? Going back to the point that David mentioned earlier about supply chain evolving and the supply chain turned upside down, five years ago, if we sat here in this sort of a panel and discussed software-defined vehicles, the conversation would have been entirely different. It would have been stuck with the traditional supply chain that we’ve seen for the last 35 or 40 years in the automotive industry. There are fundamentally two aspects here. The supply chain is evolving, and the infrastructure that we, as a community — this team, for example, and many others in the community — are trying to enable is going to be key to making our EDA partners happy. The use of virtual platforms today in the cloud to try and shift left and develop and validate some of these technologies and software wasn’t even there five years ago, so we’ve come a long way. We’ve made a lot of progress together as an industry. Yes, we have a long way to go until we actually have a truly software-defined vehicle. We can go and ask for a software-defined vehicle in the dealership. But the changes we are seeing in terms of all sorts of technology providers trying to make sure that the technology that we eventually will have in the hardware is provided in some sort of virtual form, be it fast models or whatever it is in the cloud, for the vast majority of software ecosystem in automotive this is a big change. I was at Embedded World, and the amount of virtual platforms and the demos that people were actually showing — silicon partners like we have here, Intel, Renesas, Infineon, EDA companies — pointed to a strong movement of, ‘Let’s build the infrastructure that we can build, and then provide that infrastructure to the OEMs to take it from there.’ There is a lot of work going on. Together we will make the infrastructure across the board, be it virtual platform or others, richer and more capable.

Alpert: For sure, OEMs have to control their own destiny. In the past, they would do it by differentiating maybe because they had better engine performance, or some other feature. But going forward, the differentiation is going to be their software. Whoever can make software that will provide additional value, and brand it, that’s going to be the differentiator and that’s the trend. In terms of how you get there, a shared ecosystem is important. SOAFEE is a potential way that, together with virtual platforms, you can provide a shared ecosystem for development, but still allow everyone to differentiate and plug-and-play. That’s one reason we’re working closely with Arm on trying to have a reference design specifically for this purpose. But again, we’re not saying, ‘This is the design you use. This is how you do it.’ That’s not it. The point is, let’s start somewhere, and then people can start swapping out pieces and doing different things. As long as OEMs can plug-and-play, then they can still differentiate. But they don’t have to invent everything themselves, which would be too costly.

Related Reading
Software-Defined Vehicles Ready To Roll
New approach could have big effects on cost, safety, security, and time to market.

The post Software-Defined Vehicle Momentum Grows appeared first on Semiconductor Engineering.

  • ✇Semiconductor Engineering
  • Powering The Automotive Revolution: Advanced Packaging For Next-Generation Vehicle ComputingPrasad Dhond
    Automotive processors are rapidly adopting advanced process nodes. NXP announced the development of 5 nm automotive processors in 2020 [1], Mobileye announced EyeQ Ultra using 5 nm technology during CES 2022 [2], and TSMC announced its “Auto Early” 3 nm processes in 2023 [3]. In the past, the automotive industry was slow to adopt the latest semiconductor technologies due to reliability concerns and lack of a compelling need. Not anymore. The use of advanced processes necessitates the use of adva
     

Powering The Automotive Revolution: Advanced Packaging For Next-Generation Vehicle Computing

18. Duben 2024 v 09:06

Automotive processors are rapidly adopting advanced process nodes. NXP announced the development of 5 nm automotive processors in 2020 [1], Mobileye announced EyeQ Ultra using 5 nm technology during CES 2022 [2], and TSMC announced its “Auto Early” 3 nm processes in 2023 [3]. In the past, the automotive industry was slow to adopt the latest semiconductor technologies due to reliability concerns and lack of a compelling need. Not anymore.

The use of advanced processes necessitates the use of advanced packaging as seen in high performance computing (HPC) and mobile applications because [4][5]:

  1. While transistor density has skyrocketed, I/O density has not increased proportionally and is holding back chip size reductions.
  2. Processors have heterogeneous, specialized blocks to support today’s workloads.
  3. Maximum chip sizes are limited by the slowdown of transistor scaling, photo reticle limits and lower yields.
  4. Cost per transistor improvements have slowed down with advanced nodes.
  5. Off-package dynamic random-access memory (DRAM) throttles memory bandwidth.

These have been drivers for the use of advanced packages like fan-out in mobile and 2.5D/3D in HPC. In addition, these drivers are slowly but surely showing up in automotive compute units in a variety of automotive architectures as well (see figure 1).

Fig. 1: Vehicle E/E architectures. (Image courtesy of Amkor Technology)

Vehicle electrical/electronic (E/E) architectures have evolved from 100+ distributed electronic control units (ECUs) to 10+ domain control units (DCUs) [6]. The most recent architecture introduces zonal or zone ECUs that are clustered in physical locations in cars and connect to powerful central computing units for processing. These newer architectures improve scalability, cost, and reliability of software-defined vehicles (SDVs) [7]. The processors in each of these architectures are more complex than those in the previous generation.

Multiple cameras, radar, lidar and ultrasonic sensors and more feed data into the compute units. Processing and inferencing this data require specialized functional blocks on the processor. For example, the Tesla Full Self-Driving (FSD) HW 3.0 system on chip (SoC) has central processing units (CPUs), graphic processing units (GPUs), neural network processing units, Low-Power Double Data Rate 4 (LPDDR4) controllers and other functional blocks – all integrated on a single piece of silicon [8]. Similarly, Mobileye EyeQ6 has functional blocks of CPU clusters, accelerator clusters, GPUs and an LPDDR5 interface [9]. As more functional blocks are introduced, the chip size and complexity will continue to increase. Instead of a single, monolithic silicon chip, a chiplet approach with separate functional blocks allows intellectual property (IP) reuse along with optimal process nodes for each functional block [10]. Additionally, large, monolithic pieces of silicon built on advanced processes tend to have yield challenges, which can also be overcome using chiplets.

Current advanced driver-assistance systems (ADAS) applications require a DRAM bandwidth of less than 60GB/s, which can be supported with standard double data rate (DDR) and LPDDR solutions. However, ADAS Level 4 and Level 5 will need up to 1024 GB/s memory bandwidth, which will require the use of solutions such as Graphic DDR (GDDR) or High Bandwidth Memory (HBM) [11][12].

Fig. 2: Automotive compute package roadmap. (Image courtesy of Amkor Technology)

Automotive processors have been using Flip Chip BGA (FCBGA) packages since 2010. FCBGA has become the mainstay of several automotive SoCs, such as EyeQ from Mobileye, Tesla FSD and NVIDIA Drive. Consumer applications of FCBGA packaging started around 1995 [13], so it took more than 15 years for this package to be adopted by the automotive industry. Computing units in the form of multichip modules (MCMs) or System-in-Package (SiP) have also been in automotive use since the early 2010s for infotainment processors. The use of MCMs is likely to increase in automotive compute to enable components like the SoC, DRAM and power management integrated circuit (PMIC) to communicate with each other without sending signals off-package.

As cars move to a central computing architecture, the SoCs will become more complex and run into size and cost challenges. Splitting these SoCs into chiplets becomes a logical solution and packaging these chiplets using fan-out or 2.5D packages becomes necessary. Just as FCBGA and MCMs transitioned into automotive from non-automotive applications, so will fan-out and 2.5D packaging for automotive compute processors (see figure 2). The automotive industry is cautious but the abovementioned architecture changes are pushing faster adoption of advanced packages. Materials, processes, and factory controls are key considerations for successful qualification of these packages in automotive compute applications.

In summary, the automotive industry is adopting advanced semiconductor technologies, such as 5 nm and 3 nm processes, which require the use of advanced packaging due to limitations in I/O density, chip size reductions, and memory bandwidth. Processors in the latest vehicle E/E architectures are more complex and require specialized functional blocks to process data from multiple sensors. As cars move to the central computing architecture, the SoCs will become more complex and run into size and cost challenges. Splitting these SoCs into chiplets becomes a logical solution and packaging these chiplets using fan-out or 2.5D technology becomes necessary.

Sources

  1. NXP. “NXP Selects TSMC 5nm Process for Next-Generation High-Performance Automotive Platform.” NXP, https://www.nxp.com/company/about-nxp/nxp-selects-tsmc-5nm-process-for-next-generation-high-performance-automotive-platform:NW-TSMC-5NM-HIGH-PERFORMANCE.
  2. Mobileye. “Mobileye at CES 2022.” Mobileye, https://www.mobileye.com/news/mobileye-ces-2022-tech-news/.
  3. Business Wire. “TSMC Showcases New Technology Developments at 2023 Technology Symposium.” Business Wire, https://www.businesswire.com/news/home/20230426005359/en/TSMC-Showcases-New-Technology-Developments-at-2023-Technology-Symposium.
  4. Swaminathan, Raja. “Advanced Packaging: Enabling Moore’s Law’s Next Frontier Through Heterogeneous Integration.” HotChips33, https://hc33.hotchips.org/assets/program/tutorials/2021%20Hot%20Chips%20AMD%20Advanced%20Packaging%20Swaminathan%20Final%20%2020210820.pdf
  5. SemiAnalysis. “Advanced Packaging Part 1” SemiAnalysis, https://www.semianalysis.com/p/advanced-packaging-part-1-pad-limited?utm_source=%2Fsearch%2Fadvanced%2520packaging&utm_medium=reader2.
  6. McKinsey & Company. “Getting Ready for Next-Generation EE Architecture with Zonal Compute.” McKinsey & Company, https://www.mckinsey.com/industries/semiconductors/our-insights/getting-ready-for-next-generation-ee-architecture-with-zonal-compute.
  7. NXP. “How Zonal E/E Architectures with Ethernet are Enabling Software-Defined Vehicles.” NXP, https://www.nxp.com/company/blog/how-zonal-e-e-architectures-with-ethernet-are-enabling-software-defined-vehicles:BL-HOW-ZONAL-EE-ARCHITECTURES.
  8. WikiChip. “Tesla (Car Company)/FSD Chip.” WikiChip, https://en.wikichip.org/wiki/tesla_(car_company)/fsd_chip.
  9. Mobileye. “EyeQ Chip.” Mobileye, https://www.mobileye.com/technology/eyeq-chip/.
  10. Ziadeh, Bassam. “Driving Adoption of Advanced IC Packaging in Automotive Applications.” Presentation at IMAPS DPC, March 2023. General Motors, Fountain Hills AZ, March 16, 2023.
  11. K Matthias Jung and Norbert Wehn. “Driving Against the Memory Wall: The Role of Memory for Autonomous Driving.” Fraunhofer IESE, Kaiserslautern, Germany, and Microelectronic Systems Design Research Group, University of Kaiserslautern, Kaiserslautern, Germany. Kluedo, https://kluedo.ub.rptu.de/frontdoor/deliver/index/docId/5286/file/_memory.pdf.
  12. Micron. “Cinco de Play: Memory – Is That Critical to Autonomous Driving?” Micron, https://www.micron.com/about/blog/2017/october/cinco-play-memory-is-that-critical-to-autonomous-driving.
  13. McKinsey & Company. “Advanced Chip Packaging: How Manufacturers Can Play to Win.” McKinsey & Company, https://www.mckinsey.com/industries/semiconductors/our-insights/advanced-chip-packaging-how-manufacturers-can-play-to-win.

The post Powering The Automotive Revolution: Advanced Packaging For Next-Generation Vehicle Computing appeared first on Semiconductor Engineering.

  • ✇Semiconductor Engineering
  • Powering The Automotive Revolution: Advanced Packaging For Next-Generation Vehicle ComputingPrasad Dhond
    Automotive processors are rapidly adopting advanced process nodes. NXP announced the development of 5 nm automotive processors in 2020 [1], Mobileye announced EyeQ Ultra using 5 nm technology during CES 2022 [2], and TSMC announced its “Auto Early” 3 nm processes in 2023 [3]. In the past, the automotive industry was slow to adopt the latest semiconductor technologies due to reliability concerns and lack of a compelling need. Not anymore. The use of advanced processes necessitates the use of adva
     

Powering The Automotive Revolution: Advanced Packaging For Next-Generation Vehicle Computing

18. Duben 2024 v 09:06

Automotive processors are rapidly adopting advanced process nodes. NXP announced the development of 5 nm automotive processors in 2020 [1], Mobileye announced EyeQ Ultra using 5 nm technology during CES 2022 [2], and TSMC announced its “Auto Early” 3 nm processes in 2023 [3]. In the past, the automotive industry was slow to adopt the latest semiconductor technologies due to reliability concerns and lack of a compelling need. Not anymore.

The use of advanced processes necessitates the use of advanced packaging as seen in high performance computing (HPC) and mobile applications because [4][5]:

  1. While transistor density has skyrocketed, I/O density has not increased proportionally and is holding back chip size reductions.
  2. Processors have heterogeneous, specialized blocks to support today’s workloads.
  3. Maximum chip sizes are limited by the slowdown of transistor scaling, photo reticle limits and lower yields.
  4. Cost per transistor improvements have slowed down with advanced nodes.
  5. Off-package dynamic random-access memory (DRAM) throttles memory bandwidth.

These have been drivers for the use of advanced packages like fan-out in mobile and 2.5D/3D in HPC. In addition, these drivers are slowly but surely showing up in automotive compute units in a variety of automotive architectures as well (see figure 1).

Fig. 1: Vehicle E/E architectures. (Image courtesy of Amkor Technology)

Vehicle electrical/electronic (E/E) architectures have evolved from 100+ distributed electronic control units (ECUs) to 10+ domain control units (DCUs) [6]. The most recent architecture introduces zonal or zone ECUs that are clustered in physical locations in cars and connect to powerful central computing units for processing. These newer architectures improve scalability, cost, and reliability of software-defined vehicles (SDVs) [7]. The processors in each of these architectures are more complex than those in the previous generation.

Multiple cameras, radar, lidar and ultrasonic sensors and more feed data into the compute units. Processing and inferencing this data require specialized functional blocks on the processor. For example, the Tesla Full Self-Driving (FSD) HW 3.0 system on chip (SoC) has central processing units (CPUs), graphic processing units (GPUs), neural network processing units, Low-Power Double Data Rate 4 (LPDDR4) controllers and other functional blocks – all integrated on a single piece of silicon [8]. Similarly, Mobileye EyeQ6 has functional blocks of CPU clusters, accelerator clusters, GPUs and an LPDDR5 interface [9]. As more functional blocks are introduced, the chip size and complexity will continue to increase. Instead of a single, monolithic silicon chip, a chiplet approach with separate functional blocks allows intellectual property (IP) reuse along with optimal process nodes for each functional block [10]. Additionally, large, monolithic pieces of silicon built on advanced processes tend to have yield challenges, which can also be overcome using chiplets.

Current advanced driver-assistance systems (ADAS) applications require a DRAM bandwidth of less than 60GB/s, which can be supported with standard double data rate (DDR) and LPDDR solutions. However, ADAS Level 4 and Level 5 will need up to 1024 GB/s memory bandwidth, which will require the use of solutions such as Graphic DDR (GDDR) or High Bandwidth Memory (HBM) [11][12].

Fig. 2: Automotive compute package roadmap. (Image courtesy of Amkor Technology)

Automotive processors have been using Flip Chip BGA (FCBGA) packages since 2010. FCBGA has become the mainstay of several automotive SoCs, such as EyeQ from Mobileye, Tesla FSD and NVIDIA Drive. Consumer applications of FCBGA packaging started around 1995 [13], so it took more than 15 years for this package to be adopted by the automotive industry. Computing units in the form of multichip modules (MCMs) or System-in-Package (SiP) have also been in automotive use since the early 2010s for infotainment processors. The use of MCMs is likely to increase in automotive compute to enable components like the SoC, DRAM and power management integrated circuit (PMIC) to communicate with each other without sending signals off-package.

As cars move to a central computing architecture, the SoCs will become more complex and run into size and cost challenges. Splitting these SoCs into chiplets becomes a logical solution and packaging these chiplets using fan-out or 2.5D packages becomes necessary. Just as FCBGA and MCMs transitioned into automotive from non-automotive applications, so will fan-out and 2.5D packaging for automotive compute processors (see figure 2). The automotive industry is cautious but the abovementioned architecture changes are pushing faster adoption of advanced packages. Materials, processes, and factory controls are key considerations for successful qualification of these packages in automotive compute applications.

In summary, the automotive industry is adopting advanced semiconductor technologies, such as 5 nm and 3 nm processes, which require the use of advanced packaging due to limitations in I/O density, chip size reductions, and memory bandwidth. Processors in the latest vehicle E/E architectures are more complex and require specialized functional blocks to process data from multiple sensors. As cars move to the central computing architecture, the SoCs will become more complex and run into size and cost challenges. Splitting these SoCs into chiplets becomes a logical solution and packaging these chiplets using fan-out or 2.5D technology becomes necessary.

Sources

  1. NXP. “NXP Selects TSMC 5nm Process for Next-Generation High-Performance Automotive Platform.” NXP, https://www.nxp.com/company/about-nxp/nxp-selects-tsmc-5nm-process-for-next-generation-high-performance-automotive-platform:NW-TSMC-5NM-HIGH-PERFORMANCE.
  2. Mobileye. “Mobileye at CES 2022.” Mobileye, https://www.mobileye.com/news/mobileye-ces-2022-tech-news/.
  3. Business Wire. “TSMC Showcases New Technology Developments at 2023 Technology Symposium.” Business Wire, https://www.businesswire.com/news/home/20230426005359/en/TSMC-Showcases-New-Technology-Developments-at-2023-Technology-Symposium.
  4. Swaminathan, Raja. “Advanced Packaging: Enabling Moore’s Law’s Next Frontier Through Heterogeneous Integration.” HotChips33, https://hc33.hotchips.org/assets/program/tutorials/2021%20Hot%20Chips%20AMD%20Advanced%20Packaging%20Swaminathan%20Final%20%2020210820.pdf
  5. SemiAnalysis. “Advanced Packaging Part 1” SemiAnalysis, https://www.semianalysis.com/p/advanced-packaging-part-1-pad-limited?utm_source=%2Fsearch%2Fadvanced%2520packaging&utm_medium=reader2.
  6. McKinsey & Company. “Getting Ready for Next-Generation EE Architecture with Zonal Compute.” McKinsey & Company, https://www.mckinsey.com/industries/semiconductors/our-insights/getting-ready-for-next-generation-ee-architecture-with-zonal-compute.
  7. NXP. “How Zonal E/E Architectures with Ethernet are Enabling Software-Defined Vehicles.” NXP, https://www.nxp.com/company/blog/how-zonal-e-e-architectures-with-ethernet-are-enabling-software-defined-vehicles:BL-HOW-ZONAL-EE-ARCHITECTURES.
  8. WikiChip. “Tesla (Car Company)/FSD Chip.” WikiChip, https://en.wikichip.org/wiki/tesla_(car_company)/fsd_chip.
  9. Mobileye. “EyeQ Chip.” Mobileye, https://www.mobileye.com/technology/eyeq-chip/.
  10. Ziadeh, Bassam. “Driving Adoption of Advanced IC Packaging in Automotive Applications.” Presentation at IMAPS DPC, March 2023. General Motors, Fountain Hills AZ, March 16, 2023.
  11. K Matthias Jung and Norbert Wehn. “Driving Against the Memory Wall: The Role of Memory for Autonomous Driving.” Fraunhofer IESE, Kaiserslautern, Germany, and Microelectronic Systems Design Research Group, University of Kaiserslautern, Kaiserslautern, Germany. Kluedo, https://kluedo.ub.rptu.de/frontdoor/deliver/index/docId/5286/file/_memory.pdf.
  12. Micron. “Cinco de Play: Memory – Is That Critical to Autonomous Driving?” Micron, https://www.micron.com/about/blog/2017/october/cinco-play-memory-is-that-critical-to-autonomous-driving.
  13. McKinsey & Company. “Advanced Chip Packaging: How Manufacturers Can Play to Win.” McKinsey & Company, https://www.mckinsey.com/industries/semiconductors/our-insights/advanced-chip-packaging-how-manufacturers-can-play-to-win.

The post Powering The Automotive Revolution: Advanced Packaging For Next-Generation Vehicle Computing appeared first on Semiconductor Engineering.

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