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WEBINAR: The Power of Formal Verification: From flops to billion-gate designs

WEBINAR: The Power of Formal Verification: From flops to billion-gate designs
by Daniel Nenni on 08-15-2023 at 5:00 pm

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Semiconductor industry is going through an unprecedented technological revolution with AI/ML, GPU, RISC-V, chiplets, automotive and 5G driving the hardware design innovation. The race to deliver high performance, optimizing power and area (PPA), while ensuring safety and security is truly on. It has never been a more exciting time for hardware design and architecture.

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The story around validation & verification is however not as inspiring with the industry struggling to show improvements in best practice adoption. If Harry Foster’s Wilson Research Report is anything to go by, an ever-increasing number of simulation cycles and the astronomical growth of UVM is unable to prevent the ASIC/IC respin which is at a staggering 76% while 66% of IC/ASIC projects continue to miss schedules. 

62% of the ASIC/IC bugs are logic related causing respins in designs with over a billion gates – practically everything that powers our devices in our day-to-day lives. It would be interesting to analyze what proportion of the logic bugs could have been caught on day one of the DV flow.

While the industry continues to talk about shift-left, it is not doing the walk. The best way of ensuring shift-left is to leverage formal methods into your DV flow. One of the ways we could adopt formal methods early in the DV flow by understanding its true potential. While the use of formal apps has certainly increased over the last decade, the application of formal is still very much on the extremities. Almost everyone would use linters (based on formal technology) in early stages of the project and use apps such as connectivity checking towards the end of the project flows. However, the full continuum is missed. The real value-add of formal is in the – middle – in functional verification as well as safety & security verification.

Modern-day designs are verifiable by formal when supported by great methodology. At Axiomise, we have formally verified designs as big as 1-billion gates (approx. 338 million flip-flops), though the gate and flop count is not the only criteria for determining the challenges with proof complexity.

Formal methods are capable of not only hunting down corner-case bugs easily, but they also establish exhaustive proofs of bug absence through mathematical analysis of the entire design space by employing program reasoning techniques based on sound rules of mathematical logic. Formal verification constructs a mathematical proof to verify a design-under-test (DUT) against a requirement. Along the way of building a proof, formal tools can encounter bugs in the design, or in the specifications, or both. When no more bugs can be found, a formal proof establishes that the requirement holds valid on all the reachable states of the design where reachability is determined purely through assumptions on the test environment with no human effort needed in injecting stimulus in the design – a formidable challenge in dynamic simulation!

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At Axiomise, we have been deploying production-grade formal methodology using all the commercial tools in the market with great success. To make formal normal, one must understand its true potential by mastering the methodology. This talk will discuss some of the key aspects of formal verification methodology based on the insights from the practical deployment of formal, and show how scalable formal methodology based on abstraction, bug-hunting and coverage can be used to accomplish functional verification for designs with few flip-flops to a design with billion gates.

Also Read:

A Five-Year Formal Celebration at Axiomise

Axiomise at #59DAC, Formal Update

CEO Interview: Dr. Ashish Darbari of Axiomise


A New Verification Conference Coming to Austin

A New Verification Conference Coming to Austin
by Bernard Murphy on 08-15-2023 at 6:00 am

Actually not so new, just new to us in the US. Verification Futures is already well established as a Tessolve event with a 10-year track record in the UK. This year they are bringing the conference to Austin on September 14th (REGISTER HERE).

A New Verification Conference Coming to Austin

While DVCon is an ever-popular event for sharing verification ideas, it isn’t always accessible to many hands-on engineers (travel costs, etc). Since the format for the Verification Futures conference leans heavily to hands-on topics presented by verification engineers, this looks like a great opportunity to listen to and network with experts (100+ and counting) in the field outside of the traditional verification conference sites. And where better to do that than Austin, a major center for verification? Or online if you really can’t get to this event.

The conference

This is a one-day event, hosted at the Austin Marriot South on September 14th, kicking off at 8:30am and wrapping up at 4:30pm. There are speakers from Arm, Ericsson, Cadence, Tenstorrent, Intel, Doulos, Renesas, Imperas, Breker, Broadcom, Imperas, NXP, UVMGen, and SynthWorks. This is not a lightweight group!

I see topics on safety and security, designing IP for a long shelf life, RISC-V CPU verification, validating hybrid architectures, trends in UVM-AMS, and leveraging AMS and DMS verification. All very topical.

Mike Bartley of Tessolve hosts the event. Mike was previously CEO of Test and Verification Solutions (TV&S) until the organization was acquired by Tessolve in 2020. Mike is now a senior VP in VLSI design and is clearly still very involved in events of this type.

You can register for the conference (Austin or online) on September 14th HERE.

About Tessolve

Tessolve offers a unique combination of pre-silicon and post-silicon expertise to provide an efficient turnkey solution for silicon bring-up, and spec to the product. With 3000+ employees worldwide, Tessolve provides a one-stop-shop solution with full-fledged hardware and software capabilities, including its advanced silicon and system testing labs.

Tessolve offers a Turnkey ASIC Solution, from design to packaged parts. Tessolve’s design services include solutions on advanced process nodes with a healthy eco-system relationship with EDA, IP, and foundries. Our front-end design strengths integrated with the knowledge from the backend flow, allows Tessolve to catch design flaws ahead in the cycle, thus reducing expensive re-design costs, and risks.

They actively invest in R&D center of excellence initiatives such as 5G, mmWave, Silicon photonics, HSIO, HBM/HPI, system-level test, and others. Tessolve also offers end-to-end product design services in the embedded domain from concept to manufacturing under an ODM model with application expertise in Avionics, Automotive, Industrial and Medical segments.

Tessolve’s Embedded Engineering services enable customers a faster time-to-market through deep domain expertise, innovative ideas, diverse embedded hardware & software services, and built-in infrastructure with world-class lab facilities. Tessolve’s clientele includes Tier 1 clients across multiple market segments, 7 of the top 10 semiconductor companies, start-ups, and government entities.

They have a global presence with office locations in the United States, India, Singapore, Malaysia, Germany, United Kingdom, China, UK, Japan, Thailand, Philippines, and Test Labs in India, Singapore, Malaysia, Austin, San Jose.


Turnaround in Semiconductor Market

Turnaround in Semiconductor Market
by Bill Jewell on 08-14-2023 at 1:30 pm

Semiconductor Market Change Q3 2023

The global semiconductor market grew 4.2% in 2Q 2023 versus 1Q 2023, according to WSTS. The 2Q 2023 growth was the first positive quarter-to-quarter change since 4Q 2021, a year and a half ago. Versus a year ago, the market declined 17.3%, an improvement from a 21.3% year-to-year decline in 1Q 2023. Semiconductor market year-to-year change peaked at 30.1% in 2Q 2021 in the recovery from the 2020 pandemic slowdown.

Most major semiconductor companies experienced revenue growth in 2Q 2023 versus 1Q 2023. Of the 15 largest companies, 13 showed revenue gains. We at Semiconductor Intelligence only include companies which sell to the end user. Thus, we do not include foundries such as TSMC or companies which only use their semiconductor products internally such as Apple. Nvidia has not yet reported results for the latest quarter, but its guidance was for a 53% jump from the prior quarter. If this guidance holds, Nvidia will become the third largest semiconductor company in 2Q 2023, up from fifth in the prior quarter. Nvidia cited a steep increase in demand for AI processors as the driver for the strong growth. SK Hynix reported 2Q 2023 growth of 39%, bouncing back from three previous quarter-to-quarter declines of over 25%. The only companies with revenue declines were Qualcomm (down 10%) and Infineon Technologies (down 0.7%). The weighted average growth from 1Q 2023 to 2Q 2023 for these 15 companies was 8%. Excluding Nvidia, the growth was 3%.

Top Semiconductor Companies’ Revenue

Change versus prior quarter in local currency
US$B 2Q23 Reported Guidance Comments on 3Q23
Company 2Q23 3Q23
1 Intel 12.9 11% 3.5% inventory issues
2 Samsung SC 11.2 7.3% n/a demand recovery in 2H
3 Nvidia 11.0 53% n/a 2Q23 is guidance
4 Broadcom 8.85 1.3% n/a 2Q23 is guidance
5 Qualcomm IC 7.17 -10% 0.4% increase in handsets
6 SK Hynix 5.55 39% n/a increased demand in 2H
7 AMD 5.36 0.1% 6.4% client & data center up
8 TI 4.53 3.5% 0.4% auto up, others weak
9 Infineon 4.46 -0.7% -2.2% auto up, power down
10 STMicro 4.33 1.9% 1.2% auto up, digital down
11 Micron 3.75 1.6% 3.9% supply/demand improving
12 NXP 3.30 5.7% 3.1% auto & industrial up
13 Analog Devices 3.26 0.4% -5.0% auto & industrial down
14 MediaTek 3.20 1.7% 4.8% inventories down
15 Renesas 2.68 2.5% 0.4% inventory balanced
Total of above 8%
   Memory Cos. (US$) 9% n/a Samsung-Hynix-Micron
   Non-Memory Cos. 7% 2%

Most companies are guiding for continued growth in 3Q 2023 from 2Q 2023. Of the eleven companies providing guidance, nine call for revenue increases ranging from 0.4% (Qualcomm, Texas Instruments and Renesas Electronics) to 6.4% (AMD). Infineon expects a 2.2% decline and Analog Devices guided for a 5% decline. The memory companies (Samsung, SK Hynix, and Micron Technology) all stated they see improving demand in the second half of 2023. Intel cited continuing inventory issues while MediaTek and Renesas reported lower or balanced inventories. Automotive will continue to be a driver in 3Q 2023, as cited by TI, Infineon, and STMicroelectronics, and NXP Semiconductors. The weighted average guidance of the eleven companies is 2% growth in 3Q 2023 from 2Q 2023. Companies providing a range of revenue guidance had high-end growth ranging from 3 to 7 percentage points higher than their midpoint guidance.

Even with positive quarter-to-quarter growth in 2Q 2023, 3Q 2023, and possibly 4Q 2023, the semiconductor market will show a substantial decline for the year 2023. Estimates of the size of the decline range from 20% from Future Horizons to 10% from Tech Insights. Future Horizons’ Malcolm Penn stated he will raise his 2023 projection based on the 2Q 2023 WSTS data but has not yet cited a specific number. Our projection from Semiconductor Intelligence (SC-IQ) is a 13% drop in 2023. Looking at 2024, most projections are similar: Tech Insights at 10% growth, SC-IQ at 11% and WSTS at 11.8%. Gartner is the most bullish at 18.5%. The primary difference between the 2024 forecasts are the assumptions on the memory market. WSTS and Gartner are close on 2024 growth for non-memory products at 5.0% and 7.7% respectively. However, Gartner projects 70% growth for memory while WSTS forecasts 43%.

Our Semiconductor Intelligence July newsletter stated we likely reached the low point in electronics production in the second quarter of 2023. The semiconductor market finally showed quarter-to-quarter growth in 2Q 2023. Major semiconductor companies are projecting continued revenue growth into 3Q 2023. The semiconductor market has finally turned and is headed toward probable double-digit growth in 2024.

Also Read:

Has Electronics Bottomed?

Semiconductor CapEx down in 2023

Steep Decline in 1Q 2023


Next-Gen AI Engine for Intelligent Vision Applications

Next-Gen AI Engine for Intelligent Vision Applications
by Kalar Rajendiran on 08-14-2023 at 10:00 am

Synopsys ARC MetaWare NN SDK

Artificial Intelligence (AI) has witnessed explosive growth in applications across various industries, ranging from autonomous vehicles and natural language processing to computer vision and robotics. The AI embedded semiconductor market is projected to reach $800 billion by year 2030. Compare this with just $48 billion back in 2020. [Source: May 2022 IBS Report]. Computer vision driven applications drive a significant part of this incredible growth projection. Real-time AI examples in this space include drones, automotive applications, mobile cameras and digital still cameras.

The advent of AlexNet more than a decade ago was a major advancement in the realm of object detection compared to erstwhile methods. Since then, convolution neural network (CNN) models have been the dominant method of implementing object detection using digital signal processors (DSP). While the CNN model has evolved to be able to deliver a 90% accuracy level, it requires a lot of memory. More memory means higher power consumption. In addition, advances in memory performance have not kept pace with advances in compute performance, impacting efficient data movement.

Over the last few years, transformer models which were originally developed for natural language processing have been adapted for object detection purposes with 90% accuracy. But they are more demanding on compute capacity compared to CNNs. So, a combination of CNNs and transformers is a better solution for leveraging the best of both worlds, which in turn is pushing the demand for increasingly complex AI models and the need for real-time processing using specialized hardware accelerators.

As the network models are evolving, the number of cameras per application, image size and resolution are also increasing dramatically. While accuracy is a critical requirement, performance, power, area, flexibility and implementation costs are key decision factors too. These factors are driving the decisions on AI accelerator architectures and Neural Processing Units (NPUs) and DSPs are emerging as key components, each offering unique strengths to the world of AI.

Use DSP or NPU or Both for Implementing AI Accelerators

DSPs do provide more flexibility than NPUs. Using a vector DSP, AI can be implemented in software. DSPs can perform traditional signal processing as well as lower performance AI processing with no additional area penalty. And a vector DSP can be used to support functions that cannot be processed on an NPU.

On the other hand, NPUs can be implemented to accelerate all common AI network models such as CNN, RNN, transformers, and recommenders. For multiply-accumulate (MAC) dominated AI workloads, NPUs are more efficient in terms of power and area. In other words, for mid to high-performance AI needs, an NPU-approach is better than a DSP approach.

The bottom line is that except for low-end AI requirements, an NPU approach is the way to go. But as AI network models are rapidly evolving, for future proofing one’s application, a DSP-NPU combination approach is the prudent solution.

AI Accelerator Solutions from Synopsys

Synopsys’ broad processor portfolio includes both its ARC® VPX vector DSP family of cores as well as its ARC NPX neural network family of cores. The development platform comes with the ARC MetaWare MX development tools. The VPX cores are programmable using C or C++ while the NPX cores’ hardware is automatically generated by feeding the customer’s trained neural network into Synopsys development tools. The platform supports widely used frameworks for customers to train their neural network. The MetaWare NN SDK is the compiler for the trained NN. The development tools also offer the ability to perform virtual simulation for testing purposes.

ARC NPX6 is Synopsys’ sixth generation general purpose NPU that will support any CNN, RNN or transformer. Customers who bring their own AI engine can easily pair it with a VPX core. Customers could also design their own neural network using Synopsys’ ASIP Designer tool.

As applications’ demand for TOPS performance grows, the challenge of memory bandwidth grows with it. Some hardware and software features need to be added to minimize this bandwidth challenge. To address this scaling requirement, Synopsys uses L2 memory to help minimize data traffic over an external bus.

An ARC NPX6-based solution can be implemented to deliver up to 3,500 TOPS as needed by scaling all the way to 24 core NPU with 96K MACs and instantiating up to eight NPUs.

Summary

Combining vector DSP technology and neural processing technology can create a synergistic solution that includes future-proofing and can revolutionize AI acceleration. Synopsys offers a broad portfolio of IP in addition to the VPX and NPX family of IP cores. They also offer other tools such as platform architect tool that will help explore, analyze and visualize the data of the AI applications. High quality IP and a comprehensive, easy-to-use tool platform are needed for achieving fast time to market.

For more details, visit the product page.

Also Read:

VC Formal Enabled QED Proofs on a RISC-V Core

WEBINAR: Leap Ahead of the Competition with AI-Driven EDA Technology

Computational Imaging Craves System-Level Design and Simulation Tools to Leverage AI in Embedded Vision


Morris Chang’s Journey to Taiwan and TSMC

Morris Chang’s Journey to Taiwan and TSMC
by Daniel Nenni on 08-14-2023 at 6:00 am

Morris Chang 2023

High volume manufacturing is a 24/7 business with 12 hour shifts. You don’t always get to pick the shifts you want and you must cover for others when they can’t. It’s a challenging career and not for the faint of heart like myself.

In the 1980s and 1990s I spent time in Japan working with some of the top Japanese semiconductor manufacturers. It was an amazing experience but I walked away wondering how the US would be able to compete. The Japanese people I met worked very hard to honor their families and country. Back in the United States we worked 9-5 for a paycheck. Morris Chang knew this from his experience at TI and that is why he headed to Taiwan.

As I have written, Taiwan’s early start into semiconductors did not begin with Morris Chang but he does figure in prominently in Taiwan’s rise to dominance. Here is a brief biography of Morris (ChatGPT 4.0):

Morris Chang (张忠谋) is widely recognized as the father of Taiwan’s semiconductor industry. Born in 1931 in Ningbo, China, Chang moved to the U.S. in the late 1940s, where he pursued higher education in the field of physics and engineering.

Here are a few key points about Morris Chang:

  1. Education: Morris Chang holds degrees from several esteemed institutions. He received a B.S. and M.S. in Mechanical Engineering from the Massachusetts Institute of Technology (MIT) and a Ph.D. in Electrical Engineering from Stanford University.
  2. Texas Instruments: Before his endeavors in Taiwan, Chang worked at Texas Instruments (TI) in the United States for 25 years. During his tenure there, he held various senior positions including Group Vice President of the Worldwide Semiconductor Group.
  3. Taiwan Semiconductor Manufacturing Company (TSMC): In 1987, Chang founded the Taiwan Semiconductor Manufacturing Company (TSMC). TSMC is the world’s first dedicated semiconductor foundry, meaning it manufactures chips for other companies without designing its own products. This business model transformed the global semiconductor industry, enabling a myriad of fabless semiconductor companies to focus on chip design without having to invest in expensive manufacturing facilities.
  4. Economic Impact: Under Chang’s leadership, TSMC became a cornerstone of Taiwan’s IT industry, propelling the country into a major role in the global semiconductor market. Taiwan’s importance in chip manufacturing can’t be overstated, with TSMC at the forefront of cutting-edge semiconductor technology and production.
  5. Retirement: Chang retired from TSMC in 2018, but his influence in the semiconductor world and his legacy as a pioneer in the foundry business model will persist for years to come.
  6. Recognition: Chang has received numerous awards and honors over the years in recognition of his contributions to the semiconductor industry and his visionary leadership.

In summary, Morris Chang is a seminal figure in the semiconductor industry, especially in the foundry business model. His leadership and strategic vision not only transformed the industry but also elevated Taiwan’s standing in the global tech ecosystem.

From a semiconductor insider’s point of view, there is a lot more to this story. Morris started his education at Harvard but MIT turned out to be more to his liking both financially and technically. For engineers, MIT was the place to be and Morris was an engineer at heart. Morris chose mechanical engineering but he quickly became obsessed with the transistor during his first job right out of college.

After graduating from MIT (1955) Morris went to work for Sylvania, a company with a long history in lighting and electronics. After 3 years Morris wanted to go where the transistor innovation was and that was Texas Instruments. His dream was to be the head of the central research labs at TI but Morris did not have a PhD, or even a degree in electrical engineering.  In fact, he twice failed a qualifying exam for a doctoral degree at M.I.T.

Morris first worked in the germanium transistor business which would soon be surpassed by the silicon transistor. TI was IBMs major supplier (20% of TI’s revenue) and Morris was in charge of the IBM program. Getting yields ramped up was the first big challenge for Morris. He burned the midnight oil and cracked the yield code and became a hero. Morris was promoted to the head of the germanium transistor program and in 1963 he was sent to Stanford to get his PhD for further advancement. He Finished the PhD program in a record time (2.5 years) while still spending time at TI.

When Morris returned to TI full time, germanium was no longer leading edge technology so Morris took a leadership position with the TI IC group. Morris’s influence grew and in 1973 he became head of the semiconductors group and again became a hero. TI was the king of TTL (Transistor – Transistor Logic)  with a 60% market share and more than $1B in revenue, but TTL was soon replaced by MOS and TI lost the MOS race.

SemiWiki: Texas Instruments and the TTL Wars

Morris’s downfall at TI was MOS memory and microprocessors. Other companies caught up with TI (Mostek) and in some cases surpassed them. Microprocessors became the next big thing and TI had the first microprocessor patent, not Intel or Motorola. When IBM chose the Intel 8088 microprocessor for their first personal computer over the TI TMS9900 and the Motorola 6800 (amongst others), Morris took this as a personal defeat.

In 1977 Morris’s departure from TI officially started when he was removed as Group VP of Semiconductors and became Group VP of Consumer Products, a somewhat troubled business at the time (calculators and toys). Morris was then moved to head of corporate quality and his fall from grace was complete. Morris wasn’t fired from TI but his departure was not unexpected.

Morris then spent a difficult two years (1984-86) at General Instruments under CEO Frank Hickey before calling it quits and heading to Taiwan. I was a field engineer for GI during the Hickey era (1979-82)  and it was a tumultuous time for the company, absolutely.

Bottom Line: The work ethic and experience Morris developed through his career with innovative electronic and semiconductor companies was the perfect foundation for the customer centric pure-play foundry model that is TSMC. It should be noted that TI is today a semiconductor powerhouse, one of the longest standing semiconductor companies in the world. TI is also a long standing customer of TSMC.

To be continued…. How Philips saved TSMC!

Also Read:

How Taiwan Saved the Semiconductor Industry


Podcast EP176: Implementing End-to-End Security with Axiado’s New Breed of Security Processor

Podcast EP176: Implementing End-to-End Security with Axiado’s New Breed of Security Processor
by Daniel Nenni on 08-11-2023 at 10:00 am

Dan is joined by Tareq Bustami, senior vice president of marketing & sales, Axiado. Tareq has more than 20 years of experience in the semiconductor and networking industries. Before joining Axiado, he led NXP’s embedded processors for the wired and wireless markets, and was in charge of growing multi-core processor solutions for enterprise, data center infrastructure and general embedded and industrial markets.

Tareq describes Axiao’s unique and comprehensive approach to security. He provides details about its trusted control/compute unit (TCU) AI-driven hardware security platform. A broad look at the challenges of implementing end-to-end security is presented along with a discussion of how Axiado’s technology addresses these challenges.

The views, thoughts, and opinions expressed in these podcasts belong solely to the speaker, and not to the speaker’s employer, organization, committee or any other group or individual.


The Recovery has Started and it’s off to a Great Start!

The Recovery has Started and it’s off to a Great Start!
by Malcolm Penn on 08-11-2023 at 6:00 am

Semiconductor Recovery 2023

August’s WSTS Blue Book showed Q2-2023 sales rebounding strongly, up 4.2 percent vs. Q1, heralding the end of the downturn and welcome news for the beleaguered chip industry.

The really good news, however, was that the downturn bottomed one quarter earlier than previously anticipated. This pull-forward only added a modest US$11 billion to Q2’s US$ 244 billion sales but this was enough to swing Q2’s growth from minus 5.0 percent to plus 4.2 percent.

A small change in the numbers at the start of the year makes a huge difference to the quarterly growth rates and hence the final year-on-year number.

Market Detail

The market turnaround was driven by a dramatic change in the Asia/Pac region, with 5.4 percent month-on-month growth, followed by the US (plus 3.5 percent), Japan (plus 2.1 percent) and Europe (plus 1.8 percent).

On an annualised basis, Q2-2023 was down 17.3 percent vs. Q2-2023, with Asia/Pac down 22.6 percent, the US down 17.9 percent, Japan down 3.5 percent with Europe, the only region showing year-on-year growth, at plus 7.6 percent.

The near-term market outlook is starting to look a lot stronger, driven by the positive impact of the inventory burn, stronger than expected resilience in the global economy, especially in the USA, and a seemingly robust demand boost from the emerging AI market.

Forecast Summary

Looking ahead to the second half of the year, the overall industry consensus has now (mostly) acknowledged a likely double-digit decline for 2023 vs. the ‘positive growth’ positions predicted this time last Year.

Source: SEMI/Future Horizons

Future Horizons stood alone in the crowd when we first published our 2023 double-digit decline forecast 15 months ago in May 2022, likewise too when we stood by that number at our January 2023 Industry Update Webinar when all others, bar one, were predicted a very mild downturn followed by a sharp V-shaped rebound in 2024.

The stronger than expected second-quarter results will now push our 2023 forecast beyond the bull end of our January 2023 forecast scenario, but our longer-term concerns, re the still ongoing uncertain economic outlook and the excess CapEx spending, show no signs yet of abatement.

Over-capacity is the industry’s number one enemy, depressing ASPs and condemning the industry to low dollar value growth. An economic slowdown will nip any recovery in the bud.

Market Outlook

With two of the four industry fundamentals, unit sales and ASPs, now slowly but surely rebalancing, the havoc and inevitable consequences of the preceding supply-side shortage-induced market boom are now starting to recede. The stage is now set for a return to industry growth, but from a much-reduced base.

The size and shape of the recovery will depend on the potentially derailing impact of capacity (over-investment) and demand (the economy), the former of which is not looking healthy, and the latter still steeped in mixed signals and uncertainty.

That said, 2023 will undoubtedly transpire to have been a line in the sand; and 2024 will equally clearly be better. The recovery has got off to a great start, but its pace and form have yet to be determined.

We will be covering all this, together with an update to our outlook for 2023-24, at our forthcoming Industry Update Webinar on Tuesday 12 September at 3pm UK BST (GMT+1). Register now at:

https://us02web.zoom.us/webinar/register/7416911384194/WN_akISM9QxS8uNZS_oihzqFQ

Also Read:

The Billion Dollar Question – Single or Double Digit Semiconductor Decline

The Semiconductor Market Downturn Has Started

Semiconductor Crash Update


Japan’s Foundry Morgana Part II

Japan’s Foundry Morgana Part II
by Karl Breidenbach on 08-10-2023 at 10:00 am

Japan's Foundry Morgana Part II

Japan’s Foundry Morgana: A Journey from Mirage to Reality?Three years ago, I wrote an article about Japan’s semiconductor industry under the title “Japan’s Foundry Morgana.” Back in September 2020, I analyzed the decline of Japan’s once world-leading semiconductor sector and the ambitious plans for inviting TSMC to build an advanced process fab. Who could have imagined that by 2023, fueled by the experiences from the semiconductor crisis, the plans to revive the Japanese foundry footprint would have advanced at such quick pace and determination. It’s worth looking again at what happened so far and if Japan could be a blue print for other regions on the quest to semiconductor supply resilience.

A Look Back: The State of the Japanese Semiconductor Industry

In the late 1980s, Japan emerged as a global leader in semiconductors, holding strong alongside the US. Home to over 30 large-scale industry players like Renesas, Hitachi, Denso, Fujitsu, and Mitsubishi Electronics, Japan boasted a robust semiconductor ecosystem. By 1990 Japanese IDM’s NEC, Toshiba and Hitachi had taken the top three positions in the world-wide semiconductor sales ranking, just ahead of Intel and Motorola.

Top 10 Worldwide Semiconductor Sales Leaders from 1985 to 2021, Source: IC Insights

However, since the year 2000, Japan’s share of international IC exports declined sharply, dropping from 14% to less than 5% by 2020. Despite losing ground, some Japanese IDMs continued to excel in specialized segments like power electronics and optical CMOS sensors. 

Japanese silicon foundries primarily arose as carve-outs from leading IDMs, but they struggled to keep up with rivals in Taiwan, China, and the US. Japan held only 2% of global foundry capacity as of 2020. Factors such as late market entry into the foundry business, a lack of cost-containment strategies, and a narrow market segment focus led to the decline of Japan’s foundry ecosystem.

The completion of Nuvoton’s acquisition of Panasonic’s semiconductor unit in September 2020 marked a symbolic end to the Japan-owned foundry landscape, leaving a limited number of small-scale foundries.

The New Landscape: Attracting TSMC and Rebuilding the Foundry Sector

Fast forward to today, and Japan’s semiconductor industry is writing a new chapter. The once ambitious plan to invite TSMC has materialized, resulting in TSMC’s agreement to build two fabs in Japan. Backed by extensive government funding, these fabs symbolize a fresh start and an alignment with the global semiconductor landscape.

Japan’s foundry landscape as of 2023, Source: Own research

The Japanese government’s engagement in this venture is unprecedented, pledging to shoulder a significant portion of the construction costs. Leaders of the ruling party’s lawmaker coalition on chips recognize this as a national strategy, part of Japan’s efforts to revive its domestic chipmaking industry, a sector that is viewed as crucial for growth and economic security.

The joint effort between Hitachi, Renesas, Toshiba, and the Japanese Ministry of Economy signifies a strategic shift. It’s not just about reviving the Japanese-owned foundry sector; it’s about embracing international collaboration, recognizing the importance of supply security, and focusing on processes that align with Japan’s core strengths.

The Rise of Rapidus: A Bold Leap Forward

Alongside the collaboration with TSMC, Japan’s ambitious project Rapidus is a critical piece of the puzzle. Aiming for 2nm production in 2027, Rapidus represents a daring and costly venture. Supported by a consortium that includes IBM and backed by the Japanese government and large conglomerates, Rapidus seeks to reshape Japan’s semiconductor landscape by leapfrogging several generations of nodes.

The endeavor is both extremely challenging and tremendously expensive. Modern fabrication technologies are expensive to develop in general. Rapidus itself projects that it will need approximately $35 billion to initiate pilot 2nm chip production in 2025, and then bring that to high-volume manufacturing in 2027.

Despite the high stakes, the vision is clear and backed by strong commitment. Rapidus aims to serve a limited but significant client base, including tech giants like Apple and Google, focusing on quality and innovation. The focus on limited customers is a strategic move to secure enough demand and revenue to recover massive investment while avoiding emulation of TSMC’s extensive client base.

Rapidus’ success holds much significance for Japan’s advanced semiconductor supply chain, symbolizing more than just a money-making venture but a catalyst for revitalizing the Japanese industry. The Japanese government views it as a critical step towards creating more opportunities for local chip designers, even if immediate success may not be guaranteed.

Conclusion: From Mirage to Reality, A Blueprint for Others?

The reference to “Foundry Morgana” or fata morgana in my initial article resonated with the elusive, almost mythical nature of Japan’s semiconductor revitalization efforts. However, today’s landscape shows a transformation from illusion to reality.

With TSMC’s strategic presence and the pursuit of Rapidus, Japan demonstrates a new level of commitment. It is embracing both its past strength and future potential, rebuilding its foundry landscape with international collaboration, and aligning with global advancements.

Japan’s Foundry Morgana is no longer just a distant reflection. It’s a (potential) reality ;-), emerging on the horizon as a renewal of semiconductors Made in Japan.

The dynamics between Rapidus and TSMC and the larger global context add more intrigue to Japan’s semiconductor industry’s resurrection. The potential impact of geopolitics, market cap, governmental subsidization, and known knowns regarding yields and timetables further adds to the complexity of this journey.

Furthermore, Japan’s approach to revitalizing its semiconductor industry may serve as a blueprint for other regions seeking to enhance their own technological prowess. Europe, for example, with its ambitions to grow its semiconductor manufacturing and reduce dependence, could look to Japan’s strategy for inspiration.

Sources:

https://www.anandtech.com/show/18979/rapidus-wants-to-supply-2nm-chips-to-tech-giants-challenge-tsmc

https://www.taipeitimes.com/News/biz/archives/2023/08/04/2003804192

https://www.electronicsweekly.com/news/business/japan-asks-tsmc-build-fab-2020-07/

https://www.taiwannews.com.tw/en/news/3999523

https://www.semiconductors.org/wp-content/uploads/2018/06/SIA-Beyond-Borders-Report-FINAL-June-7.pdf

https://sst.semiconductor-digest.com/2016/07/whats-happening-to-japans-semiconductor-industry/

https://blog.semi.org/semi-news/japan-a-thriving-highly-versatile-chip-manufacturing-region

https://laylaec.com/2018/10/19/why-doesnt-japan-have-a-large-semiconductor-foundry-like-tsmc-samsung-or-intel-anymore/

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VC Formal Enabled QED Proofs on a RISC-V Core

VC Formal Enabled QED Proofs on a RISC-V Core
by Bernard Murphy on 08-10-2023 at 6:00 am

The Synopsys VC Formal group have a real talent for finding industry speakers to talk on illuminating outside-the-box-topics in formal verification. Not too long ago I covered an Intel talk of this kind. A recent webinar highlighted use of formal methods used together with a cool technique I have covered elsewhere called Quick Error Detection (QED). This for me is a good example of what really makes formal so fascinating – not so much the engines behind the scenes as the intellectual freedom they enable in solving a problem. Frederik Möllerström Lauridsen, a verification engineer at SyoSil, shared his experience using this method for Synopsys VC Formal for proofs on a RISC-V core.

VC Formal Enabled QED Proofs

The verification objective

Considering only the base ISA plus possible custom extensions, Frederick wanted a generic setup for RISC-V cores, in part through how they define their SVA assertions. He doesn’t go into detail in his talk, but I believe this means assertions which reference only the start and end of the pipeline, not the internals or the number of cycles required to complete. His goal is to detect both single instruction bugs and multi-instruction bugs. Single instruction bugs are relatively easy to find, but multi-instruction bugs are harder to uncover thanks to context dependent stalls without which for example register read/write conflicts might occur.

Single-instruction bugs (eg does an ADD really add) are not context dependent so can be checked by running the instruction through an otherwise empty pipeline. But multi-instruction bugs are context specific. How can you verify against all legal contexts? To see how, first you need to understand a little about QED.

QED

Quick Error Detection (QED) is a method first invented for post-silicon validation. There you start with machine-level code and regularly duplicate instructions reading and writing through a parallel set of registers / memory locations. You then compare original values with duplicated values; a difference signals an error. Similar techniques are migrating to pre-silicon verification, for an interesting reason. The intent is to regularly compare consistency between parallel implementations, with the promise that root cause errors may be caught long before being flagged by some more functionally meaningful assertion we might think to write. (Incidentally, this technique is not limited to formal verification. It is just as valuable in dynamic verification.)

Combining formal methods and QED

To apply QED you need a reference design and a design under test (DUT). Here the reference design is a single-instruction pipeline test, eg pushing an ADD instruction through an otherwise empty pipeline. In parallel the DUT will push though the same instruction, but how do you define context as an arbitrary selection of possible surrounding instructions? For this Frederick used a variant on QED called C-S2QED.

Without dropping too much into the technical weeds, S2 means “symbolic state”, which allows for arbitrary instructions going through the pipeline, constrained so that the first instruction entering the pipeline is the same as the instruction entering the reference pipeline. The “symbolic” part of this is key. It is not necessary to define what other instructions are going through. These are only constrained to be legal instructions. Since we are applying formal methods, all possibilities will be considered together in proofs. The other neat trick that Frederick applied was first to demonstrate that all instructions would pass through the pipeline within at most a fixed number of cycles, providing a limit for bounded proofs.

Now using the QED methodology, comparing the reference design and DUT through formal methods provides proof that there are no multi-instruction bugs in the pipeline implementation, or it provides a counterexample. Pretty cool! Frederick did acknowledge that they had not extended their method to any of the standard RISC-V ISA extensions (M, A, F, etc) though you could use VC Formal DPV for the M extension and no doubt clever folks can come up with creative possibilities for other extensions.

Very cool stuff. You can register to watch the webinar HERE.

For enthusiasts of this line of thinking check out a blog I wrote back in 2018, on the Wolper method to verify the correctness of data transport logic in network switches or on-chip interconnects or memory subsystems. I love the way formal has been applied so creatively in QED and in Wolper. There must be more opportunities like this 😊


Elon Musk is Self-Aware

Elon Musk is Self-Aware
by Roger C. Lanctot on 08-09-2023 at 10:00 am

Elon Musk is Self Aware

“I think we’ll be better than human by the end of the year.” – Elon Musk, CEO, Tesla

Parsing the impact of the latest Tesla earnings call featuring CEO Elon Musk has become an eerie out-of-body experience. The comments of the CEO are simultaneously assessed in real time and in retrospect as they are being spoken. It is automotive history in the making – a latter day Henry Ford undoing much of what that scion created. Think: re-vision (not division) of labor.

There is, of course, the prosaic assessment of projected earnings hits or misses – and the “markets” chose a negative response to Musk’s otherwise euphoric take on the company’s prospects. What was hard to ignore was the company’s ongoing success in the face of multiple macroeconomic obstacles and Musk’s own musings on his own path.

At one point he described himself as “the boy who cried FSD” – referring to the controversial full-self-driving capability available to new Tesla buyers for $15,000. This is the same FSD that is still not quite living up to its name.

Musk’s level of self-awareness is hard to ignore or avoid. One can only imagine what it’s like to read about yourself on a daily, hourly basis. In real-time Musk must come to grips with who he is, who he thinks he is, and who everyone else thinks he is or what they think of him.

Maintaining one’s grip on reality in these circumstances is itself no small feat. For Musk it is made even more complex by the fact that there is the Tesla Musk, the SpaceX Musk, the Twitter Musk, the x.AI Musk etc. etc. Everyone has their own Musk.

The Tesla Musk is probably the most interesting and palatable. But the Tesla Musk is not without his skeptics and critics taking into account unfulfilled full-self-driving forecasts, ongoing investigations of fatal crashes, and price cut and vehicle delivery flip-flops.

The most disturbing aspect of the latest Tesla earnings call with Musk is his comprehensive grasp of the technical issues (software, AI, battery tech) facing his company and the industry and his willingness to discuss those challenges and the company’s plans to overcome them. Perhaps even more important is Musk’s discussion of how the company has already overcome them.

Musk wastes no time getting to two of what may be the biggest questions facing the automotive industry:

  • How to enhance cars in such a way to improve safety and reduce highway fatalities.
  • How to hire and retain talent to work on cars.

Musk says nothing of “vision zero” platitudes and plans. After all, talking about vision zero, these days, is like talking about climate change. We feeble little humans have set off global climate shifts that will require decades if not centuries to reverse. In the same way, a million human beings are dying annually on a global scale on roadways – a reality that will be equally difficult to correct.

As the pied piper of electric vehicles, Musk is taking on both these global challenges at once – and can already point to some success.

For Musk the answer lies in a unified theory of “autonomy.” It will take mountains of data to improve and achieve full-self-driving, which will require a limitless supply of processing power (much of it from Nvidia), to achieve the objective of superhuman driving capability – a 10x-100x improvement on human driving – which still won’t get “us” to zero fatalities.

Just as Musk acknowledged, on the earnings call, the expanding adoption of Tesla’s fast charging connector and network technology by car makers such as General Motors and Ford Motor Company, he hinted at the prospect of the first car maker licensee of Tesla FSD technology. No names yet.

No other car company is even close to the required level of data collection and processing that Musk has already put in place and is expanding daily. In the context of achieving this ultimate goal of safe self-driving, the $15,000 price tag for FSD will seem trivial, he says, but even so a subscription-based alternative could be made available.

In a world where we have routinely been “sold” by “legacy” auto makers on the wonders and attractions and liberation of human driving, Musk has made machine-assisted driving aspirational. It is for this and other reasons that analysts and shareholders hang on his every word.

Notably, Tesla is fundamentally rewiring the consumer mindset regarding cars and driving in such a way that it is now short-circuiting the value of mass market automobile advertising. Increasingly, television, radio, or Internet advertising targeted at traditional internal combustion vehicle value propositions is missing its mark. Tesla does little advertising of its own.

I may only be speaking for myself, but as an EV owner my experience of TV advertising for ICE vehicles has been permanently altered. These ads are only interesting to me, now, as historical artifacts.

As for hiring and retaining the personnel necessary to achieve Musk’s dreams and Tesla’s objectives, Musk talks about interviewing and recruiting candidates who essentially don’t want to work for Tesla. By expanding his endeavors with SpaceX and, most recently, x.AI Musk has been able to hire and retain top performers whose contributions to other efforts convey a collateral benefit to Tesla.

Musk is following in the footsteps of auto industry founders who also diverted the efforts of their engineers into non-automotive endeavors. Car companies today have strangely lost the luster of past non-automotive forays.

At the very beginning of the earnings call Musk noted record vehicle production (nearing 2M annualized) and revenue ($25B) and talked about anticipating “quasi-infinite” demand for a future dedicated “robotaxi.” If any organization could make robotaxis popular, it would be Tesla.

Musk has thrust Tesla to the forefront of autonomous vehicle and artificial intelligence development. While we worry about the machines becoming self aware, a self aware Elon Musk is oddly reassuring. He knows how he sounds. He knows what we’re thinking – even as he is altering the way we think. Don’t be frightened, but do be aware, like Elon.

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