The Center for Strategic and International Studies (CSIS) in the United States published a new article on the January 12th, 2024, suggesting that the new battleground in the US-China tech war could be silicon photonics technology. This technology aims to enhance transmission efficiency, reduce latency, and reshape the competition landscape between the US and China in semiconductors and AI. 

According to TechNews’ report citing the author Matthew Reynolds’ notes in the article, unlike electronics, photonics uses photons instead of electrons to transmit information. When combined with electronic technology, photonics has the potential to create large-scale computing systems with higher bandwidth and energy efficiency, surpassing the physical limitations of traditional electronic chips.

However, the Chinese government has recently shown interest in photonics, seeing it as one way to bypass Western technological controls. Photonics technology is mentioned in China’s Outline of the 14th Five-Year Plan (2021-2025) for National Economic and Social Development and Vision 2035.

Yao Yang, the director of the National Development Institute at Beijing University, believes that US semiconductor restrictions are a “shooting themselves in the foot” because photonic chips will eventually make electronic chips obsolete.

He also sees this as an opportunity for China to overtake, asserting that China has the capability to take the lead in this emerging technology, as mentioned in his recent article.

However, Matthew Reynolds believes that it’s unlikely for photon chips to replace electronic chips, at least not in the near future. Photonics and electronics are more likely to coexist, forming a symbiotic relationship.

What is certain, though, is that silicon photonics technology holds the potential to become a breakthrough for China in advancing to the forefront of semiconductor manufacturing.

Reportedly, the most direct application of silicon photonics technology is in optical interconnects, replacing the copper wiring in circuits with photonics to speed the transmission of information between processors and/or memory, reducing the input/output bottlenecks currently plaguing AI computing.

In addition to optical interconnects, another application area for silicon photonics is in the emerging field of optical computing. Photon processors utilize light instead of electrons for computation. While their range of computational types is limited, they show significant promise in performing matrix multiplication operations, a crucial component, especially in large-scale language models, constituting over 90% of inference computations.

Chinese economist Chen Wenling from the China Center for International Economic Exchanges (CCIEE) stated in an article addressing the anti-American blockade that silicon photonics is the technology that China can use to overtake.

“China is preparing to build a photonic chip production line, which is expected to be completed in 2023, which means that China will be at the forefront of the world in terms of photonic chips, and even completely change the chip technology route. Photonic chips have many technical advantages. Its calculation speed is faster and its information capacity is larger, which will be more than 1,000 times higher than the current silicon-based chips.” Chen expressed.

Lightelligence, a U.S.-based optical computing company, previously received funding from the Chinese government and has recently launched the AI accelerator “Hummingbird.” Hummingbird utilizes optical interconnect components, connecting to chips manufactured by TSMC using 28-nanometer process.

Although this process may not be at the forefront of current technology, it aligns with China’s semiconductor manufacturing capabilities. Lightelligence even claims that its latency and efficiency metrics surpass those of competitors in certain AI tasks.

Additionally, Lightelligence has introduced the “Photonic Arithmetic Computing Engine” (PACE), an optical computing system. PACE integrates photonic and electronic components on a single chip and, in certain compute-intensive applications, boasts processing speeds 25-100 times faster than Nvidia’s high-end GPUs.

China’s SinTone Microelectronics is in the process of establishing a silicon photonics chip production line. Sui Jun, the president of SinTone Microelectronics, indicated that China has the capability to produce photon chips domestically because the manufacturing process does not require the use of extreme ultraviolet (EUV) lithography machines, which are subject to U.S. sanctions. 

Simultaneously, a research team at Tsinghua University in China announced a breakthrough in overcoming the traditional physical limitations of chips, presenting a new computational framework that integrates optics and electronics. They successfully developed the world’s first all-simulated optoelectronic intelligent computing chip (ACCEL).

In terms of computational power for smart visual target recognition tasks, ACCEL exceeds current high-performance commercial chips by over 3,000 times. In the realms of smart visual target recognition tasks and computations for unmanned system scenarios, its energy efficiency surpasses existing high-performance chips by more than 4 million times.

While the commercialization timeline for ACCEL remains uncertain, researchers believe it holds the potential for applications in unmanned systems, industrial inspection, and AI large-scale models in the future.

Silicon Photonics Poised to Transform the US-China Tech War and AI Landscape

Matthew Reynolds believes that silicon photonics is the foundation and driving force behind advancements in optical interconnects and optical computing, reshaping the competitive landscape in the semiconductor and AI industries between the US and China.

While US export measures aim to sever China’s capabilities in advanced chip manufacturing, silicon photonics appears to be a new opportunity for China to take a different path.

However, Matthew Reynolds notes that despite the promotion of photon processor performance, its current applicability remains relatively narrow, contrasting sharply with the universality of electronic processors.

Additionally, the application of silicon photonics technology still faces numerous technical challenges, requiring software development in operating systems and applications to enhance performance in optical computing.

Therefore, achieving optical computing may still require several years, or even decades. Given the current pace of AI development, any delays could have serious consequences. Leading semiconductor companies in the United States and allied nations are also investing heavily in silicon photonics. It remains uncertain whether China can secure a leadership position.

Matthew Reynolds points out that regardless, new technologies and architectures are likely to redefine the components of advanced chips. They may weaken the impact of existing control measures or reshape the competitive landscape.

The US export controls may inadvertently stimulate China to allocate more resources to emerging technologies, positioning itself as a key player in the next generation of semiconductors, especially as Moore’s Law approaches its limits and demand for AI computing continues to grow.

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As companies increased their investments in 2023, the Chinese semiconductor industry actively expanded, leading to a substantial increase in the import volume of China’s chip manufacturing equipment.

According to Bloomberg’s report citing official Chinese customs data, the import value of equipment used in the production of computer chips in China surged by 14% in 2023, reaching nearly USD 40 billion. This marks the second-highest import value recorded since 2015, indicating that Chinese semiconductor companies are rapidly investing in new fabs. This effort is expected to aim at enhancing capabilities and circumventing export controls imposed by the United States and its allies.

In 2023, before the implementation of new export controls, China experienced a sharp increase in the import of semiconductor equipment from the Netherlands.

Due to companies rushing to make purchases before the implementation of restrictive measures in the Netherlands, the import value of photolithography equipment from the country in December 2023, as per IJIWEI’s report, saw an almost 1000% year-on-year increase, reaching USD 1.1 billion.

Even before these restrictions took effect, Dutch company ASML complied with the U.S. government’s request to halt the shipment of certain high-end equipment to China.

In early January 2024, ASML reported that the Dutch government partially revoked previously issued licenses for the shipment of NXT:2050i and NXT:2100i lithography machines in 2023. This is expected to have an impact on specific customers in China.

Despite restrictions on China’s advanced process technology deployment, the main reason for its substantial purchases of semiconductor equipment lies in its efforts to break through in mature manufacturing processes.

According to a recent TrendForce’s data, China currently has 44 operational semiconductor fabs, with an additional 22 under construction. By the end of 2024, 32 Chinese wafer fabs will expand their capacity for 28-nanometer and older mature chips.

TrendForce predicts that by 2027, China’s share of mature process capacity in the global market will increase from 31% in 2023 to 39%, with further growth potential if equipment procurement progresses smoothly.

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(Photo credit: ASML)

NVIDIA CEO Jensen Huang has reportedly gone to Taiwan once again, with reports suggesting a recent visit to China. Industry sources believe NVIDIA is planning to introduce downgraded AI chips to bypass U.S. restrictions on exporting high-end chips to China. Huang’s visit to China is seen as an effort to alleviate concerns among customers about adopting the downgraded versions.

Experts indicate that due to the expanded U.S. semiconductor restriction on China, NVIDIA’s sales in the Chinese market will decline. To counter this, NVIDIA might adjust its product portfolio and expand sales of high-end AI chips outside China.

The export of NVIDIA’s A100 and H100 chips to China and Hong Kong was prohibited in September 2022. Following that, the A800 and H800 chips, which were further designed with downgraded adjustments for the Chinese market, were also prohibited for export to China in October of the previous year.

In November 2023, the NVIDIA’s management acknowledged the significant impact of the U.S. restrictions on China’s revenue for the fourth quarter of 2023 but expressed confidence that revenue from other regions can offset this impact.

CEO Jensen Huang revealed in December in Singapore that NVIDIA was closely collaborating with the U.S. government to ensure compliance with export restrictions on new chips for the Chinese market.

According to reports in Chinese media The Paper, Jensen Huang recently made a low-profile visit to China. The market is closely watching the status of NVIDIA’s AI chip strategy in China and the company’s subsequent development strategies in response to U.S. restrictions. The fate of the newly designed AI chips, H20, L20, and L2, to comply with U.S. export regulations remains uncertain and will be closely observed.

Liu Pei-Chen, a researcher and director at the Taiwan Institute of Economic Research, discussed with CNA’s reporter about NVIDIA’s active planning to introduce a downgraded version of AI chips in China. 

The most urgent task, according to Liu, is to persuade Chinese customers to adopt these downgraded AI chips. Chinese clients believe that there isn’t a significant performance gap between NVIDIA’s downgraded AI chips and domestically designed AI chips.

Liu mentioned that this is likely the reason why Jensen Huang visited China. It serves as an opportunity to promote NVIDIA’s downgraded AI chips and alleviate concerns among Chinese customers. 

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(Photo credit: NVIDIA)

The U.S. lawmakers is reportedly attempting to further drive the “decoupling” of the Pentagon’s supply chain from China. According to sources cited by Bloomberg, the U.S. Congress has prohibited the Pentagon from procuring batteries produced by six Chinese companies, including CATL and BYD.

Additionally, the other four battery manufacturers set to be banned are Envision Energy, EVE Energy, Gotion High-Tech, and Hithium Energy Storage Technology. Based on the report, of the top 10 battery suppliers in the world, just three are non-Chinese companies.

It is noted that this regulation is part of the “2024 National Defense Authorization Act,” passed on December 22, 2023. However, commercial purchases, such as Ford’s procurement of batteries from CATL in Michigan and Tesla’s sourcing of batteries from BYD, are temporarily exempt from these measures.

As per IJIWEI’s report, the U.S. government has long been eyeing the Chinese new energy vehicle supply chain. Previously, U.S. Treasury Secretary Janet Yellen argued that China’s new energy vehicle industry posed a threat to the “national security” of the United States.

At the end of 2023, a document was signed, stipulating that from 2024 onwards, all electric vehicles produced in the U.S. are prohibited from using Chinese batteries. The signing of this document is evidently unfavorable for companies in the electric vehicle battery industry looking to expand into the U.S. market.

According to the conditions for electric vehicle subsidies under the U.S. IRA Act, starting in 2024, the use of battery components produced by entities from “Foreign Entity of Concern” (FEOC) countries is prohibited. In 2025, the prohibition extends to the use of key minerals processed or recycled in FEOC countries. FEOC encompasses China, North Korea, Russia, and Iran.

The U.S. Department of Energy, in December 2023, released a notification of a proposed interpretive rule, requesting comments to define FEOC, covering overseas subsidiaries of Chinese companies and overseas enterprises with more than 25% ownership by Chinese state-owned enterprises.

However, given the current distribution of the battery supply chain, completely bypassing the Chinese battery supply chain in the U.S. is challenging. Even if feasible, it would come with substantial costs. The result could be a short-term inability to reduce vehicle prices, further impacting the gradually weakening demand for electric vehicles in the United States.

TrendForce indicates that the combined sales of BEVs and PHEVs in the United States totaled approximately 1.46 million vehicles in 2023. Due to the requirement that many vehicles must meet local assembly criteria in the U.S. to qualify for subsidies, numerous models lost subsidies in 2023.

It is expected that in 2024, various automakers will increase the proportion of local assembly, expanding consumer options to stimulate demand. However, stringent conditions for battery adoption could become one of the variables affecting the growth of electric vehicle sales in the United States.

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(Photo credit: Pixabay)

Due to consumer spending pressures this year, the smartphone market is not as robust as before. With Apple facing strained relations with China, market sentiment continues to be pessimistic about Apple’s prospects.

Recently, citing from a report from Jefferies Financial Group’s analyst, Bloomberg stated that the sales volume of Apple’s latest products in China is expected to decline by 30% compared to last year in 2024, potentially experiencing a double-digit decline for the whole year.

The Wall Street Journal once reported that last year, the Chinese government announced its restriction on officials using iPhones, with at least eight provinces instructing officials to cease using iPhones.

This restriction not only applies to government agencies but also extends to state-owned enterprises, including large entities in China’s power generation, harbor construction, mining, manufacturing, education, and investment markets.

In addition to political restrictions, Apple is also facing pressure from Chinese competitor Huawei. Analysts from Jefferies Financial Group previously stated that sales of Huawei’s Mate 60 Pro surpassed the iPhone 15.

In 2023, Huawei held the highest market share in the Chinese smartphone market, growing by approximately 6% compared to the same period in 2022, while Apple’s market share in China declined by 4% year-on-year.

Patriotic Enthusiasm Supports Local Smartphone Brands

Driven by “patriotic enthusiasm,” according to Jefferies’ estimation, Huawei’s smartphone shipments last year reached 35 million units, falling below the expected 40 million, possibly due to constraints in component supplies.

The Huawei Mate 60 Pro features a SMIC-manufactured 7nm processor tailor-made for the domestic market. Huawei continues to develop and expand its HarmonyOS operating system, competing with iOS and Android.

Yet, according to MacDailyNews, Huawei has allegedly exaggerated the capabilities of the Mate 60. In reality, its processor specifications lag behind Apple by several generations.

The “Kirin 9000S” is a 7nm chip, with a Geekbench 6 single-core score of 1,267 and a multi-core score of 3,533. In comparison, Apple’s A17 Pro features a 3nm chip, scoring 2,902 in Geekbench 6 single-core and 7,221 in multi-core tests.

The Huawei Mate 60 falls behind even Apple’s entry-level third-generation iPhone SE. The latter is equipped with the 5nm A15 Bionic chip from September 2021, scoring 2,237 in Geekbench 6 single-core and 5,173 in multi-core tests.

Smartphone Price Reduction Fails to Boost Sales

To salvage the market, iPhone 15 Pro and iPhone 15 Pro Max witnessed a substantial 16% price reduction on the Pinduoduo e-commerce platform during the first week of 2024, with similar discount levels observed in December. However, analysts from Jefferies believe that these discounts will not stimulate sales growth.

As iPhone sales constitute approximately 52% of Apple’s total revenue, China has consistently represented Apple’s most crucial international market.

In the face of the competitive pressure in the Chinese market this year, TrendForce analysis suggests that Huawei’s successful sales will exert sales pressure on Apple, which also targets the high-end market in China.

Therefore, TrendForce is not optimistic about the production forecast for Apple in 2024, estimating the annual production volume to be around 215-225 million, slightly lower or flat compared to the previous year.

In terms of regional market operations, Apple continues to increase its production share in India, aiming to offset the lost market share in China through the growth of the high-end market in India. It is estimated that by 2025, the production share in India will further increase to 25-30%.

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(Photo credit: Huawei)