ASML’s China dilemma: export controls fuel huawei’s chipmaking leap and system-level innovation
The gist
ASML’s export controls are fueling a high-stakes game of cat-and-mouse, as Huawei rewrites the chip playbook with radical system-level innovation to outmaneuver Western tech bans.
What to know
- China made up nearly 60% of ASML’s lithography sales by unit in 2024, but export controls and continued servicing are fast-tracking China’s semiconductor self-reliance.
- Huawei’s new LogicFolding chip architecture and ‘Law of Tau’ aim to smash Moore’s Law limits, targeting 1.4-nanometer chips by 2031—without ASML’s EUV machines.
- In 2026, Huawei’s 122TB AI SSD packaging leapfrogs hardware bans, demonstrating China’s pivot to advanced packaging and system-level engineering to power the AI era.
ASML’s Strategic Bind
Export controls threaten ASML’s economic lifeline in China, but ongoing equipment servicing is fueling China’s rapid learning and future self-sufficiency.
By early 2026, the tightening of export controls on ASML has placed significant economic strain on the company, given that China represented nearly 60% of its lithography sales by unit volume and a quarter of its global servicing business in 2024. Despite these stakes, China’s response to the Dutch government’s three rounds of export control tightenings since 2023 has been measured, voicing protests without resorting to bilateral penalties, likely weighing the risks of retaliation such as talent poaching, espionage, or economic coercion against broader strategic interests.
While export controls aim to curb China’s semiconductor ambitions, the continued servicing of installed ASML equipment within China remains a critical vector for tacit knowledge transfer. This hands-on collaboration between ASML’s engineers and their Chinese counterparts facilitates the subtle but vital exchange of expertise that underpins China’s drive to indigenize its semiconductor manufacturing equipment industry—an outcome that export restrictions alone have struggled to prevent, highlighting a persistent strategic vulnerability.
EUV Monopoly Under Pressure
ASML’s unrivaled grip on EUV lithography faces a ticking clock as China leverages system-level innovation and persistent gaps in AI hardware performance.
ASML has secured a formidable technological monopoly in extreme ultraviolet (EUV) lithography machines, a feat that took two decades to perfect and remains unmatched worldwide. CEO Kristoff Fuket underscores this dominance by highlighting the complexity of their light source development and confidently asserting, 'no one is coming for us.' However, this stronghold exists amid a shifting landscape shaped by fluctuating US and European export controls, which complicate technology transfers and sales. While ASML currently enjoys a significant lead, industry analysts caution that this technological moat may erode over time as China intensifies its strategic push to close the gap.
In response to restricted access to cutting-edge lithography equipment, China is innovating at the system level to circumvent these limitations, embedding more domestic technology into AI models despite a persistent ninefold performance gap compared to Nvidia. This approach reflects a broader strategic imperative to advance frontier AI capabilities without relying on direct hardware imports. While ASML's CEO projects unwavering confidence, some observers interpret his public statements as a blend of genuine leadership and calculated messaging aimed at reassuring stakeholders amid an evolving and competitive global semiconductor environment.
Huawei’s LogicFolding Gambit
Huawei’s two-layer chip design and Tau Scaling Law challenge Moore’s Law, but unresolved manufacturing and thermal hurdles cast doubt on the 1.4nm roadmap.
By mid-2026, Huawei unveiled its groundbreaking LogicFolding chip architecture, which expands chip layouts from a single layer to two, significantly enhancing power efficiency by enabling transistors to interact at more points. This innovation, set to debut in the upcoming Kirin smartphone chips, is grounded in Huawei’s newly formulated 'Law of Tau' or 'τ scaling,' a systems-level optimization principle that shifts focus from spatial miniaturization to reducing communication time between chip elements. As He Tingbo, Huawei’s semiconductor president, explained, this approach overcomes the physical limits of Moore’s Law by optimizing data transmission speeds rather than just transistor size, marking a strategic pivot in chip design.
Huawei ambitiously aims to produce advanced 1.4-nanometer chips by 2031, potentially leapfrogging industry leader TSMC’s current 2-nanometer volume production. Central to this goal is LogicFolding combined with the Tau Scaling Law, which together increase transistor count and optimize data flow without relying on ASML’s EUV lithography—a technology widely regarded as indispensable for sub-5nm chip manufacturing. By employing alternative techniques such as self-aligned quadruple patterning (SAQP), Huawei challenges the prevailing industry consensus and seeks to sidestep U.S. export restrictions that limit access to EUV tools, signaling a bold attempt to close the technology gap despite formidable manufacturing hurdles.
Despite Huawei’s confident projections, industry experts remain cautious, highlighting unresolved challenges in heat dissipation, manufacturing scale, and achieving the full suite of performance metrics expected at the 1.4-nanometer class. Paul Triolo noted that while stacked or folded designs like LogicFolding can yield effective density gains, they do not inherently solve complex issues related to process yield, power consumption, and thermal management. This skepticism underscores the significant technical barriers Huawei must overcome to translate its innovative architectures and scaling laws into commercially viable, cutting-edge semiconductor products.
AI Storage Breakthrough
Huawei’s 122TB SSD packaging leap redefines advanced memory engineering, turning packaging innovation into a key weapon against US tech restrictions.
By May 2026, Huawei's pioneering development of a 122TB AI SSD packaging technology marked a significant leap in China's semiconductor self-reliance, showcasing how advanced packaging and system-level engineering serve as vital tools to circumvent stringent US export controls. This ultra-high-capacity SSD innovation not only bypasses the physical limitations of 3D NAND flash memory but also addresses the surging demands of AI-driven data storage, positioning packaging breakthroughs as strategic enablers in the face of global supply chain constraints.