The Semiconductor War: A Core Battleground of Major-Power Strategic Competition

In the global technological landscape of the 21st century, semiconductors have transcended the scope of industrial development to become a strategic high ground for competition among major powers. At the end of May 2026, the United States ratcheted up restrictions on China’s semiconductor sector once again, blocking Chinese firms’ overseas chip procurement channels and imposing broader curbs on advanced equipment exports. In the same period, Huawei unveiled the Tao’s Law, exploring an alternative chip development route free from extreme ultraviolet (EUV) lithography reliance. The multi-year semiconductor war is essentially a contest between technological hegemony and indigenous innovation, reshaping global technological layouts and geopolitical order profoundly.

As the staple of modern industry, semiconductors underpin core sectors ranging from artificial intelligence and sophisticated weaponry to aerospace, endowing them with irreplaceable strategic value. Viewing semiconductors as the linchpin for sustaining its technological supremacy, the US has tightened blockades against China since 2022 and built a trilateral containment coalition alongside Japan and the Netherlands to erect an all-round technological barrier. On May 31, 2026, new US Department of Commerce regulations stipulated that any overseas affiliate of China-headquartered enterprises must obtain special licenses to purchase advanced AI chips such as Nvidia’s Rubin and Blackwell, completely closing off indirect offshore procurement routes. Meanwhile, the US House of Representatives passed the MATCH Act, mandating allied nations enforce equivalent export controls within 150 days and globalizing its technological containment strategy.

The US-targeted crackdown is designed to cap China’s progress in high-end manufacturing, AI research and defense modernization so as to preserve its generational technological edge. Over 90 percent of the world’s cutting-edge chips are fabricated at TSMC fabs, whose EUV machines are exclusively supplied by ASML of the Netherlands. By controlling EUV equipment, EDA software and core intellectual property, Washington holds sway over advanced chip fabrication. Such hegemonic constraints have fractured the long-established global division of labor in semiconductors, splitting the industrial chain into two blocs: one led by the US and its Western allies and another anchored on China’s indigenous supply chain.

Rather than yielding to containment, China is striving for breakthroughs through homegrown innovation, with Huawei’s Tao’s Law standing out as a landmark milestone. Unveiled on May 25, 2026, Tao’s Law abandons the traditional Moore’s Law path of downsizing transistor dimensions via geometric miniaturization and adopts logic folding as its core approach. The technology reconstructs flat two-dimensional chip layouts into vertically stacked three-dimensional structures, shortening signal transmission paths and cutting circuit delay. Huawei’s lab data indicates that without EUV or advanced process upgrades, logic folding boosts transistor density by 53.5 percent and energy efficiency by 41 percent, targeting performance equivalent to 1.4-nanometer chips by 2031 and pioneering a brand-new development paradigm for the post-Moore’s Law era.

Parallel to technological leaps, China is speeding up the construction of a self-reliant semiconductor ecosystem. Domestic developers including Cambricon and Biren continuously make headway in AI chip design; SMIC expands production on mature process nodes while domestic advanced packaging technology matures; home-grown photoresist, target materials and etching equipment gradually replace imported alternatives, steadily lifting supply chain security. This all-round industrial breakthrough serves both corporate survival and national strategic security for critical technologies and national defense.

The semiconductor rivalry spills far beyond tech boundaries into geopolitics and military development. Serving as the electronic brain of precision weaponry, high-end chips power AI command systems, precision-guided munitions and autonomous combat drones. Washington’s export curbs aim to slow China’s military modernization, whereas China’s semiconductor advances directly bolster defense capabilities and strategic deterrence. As Washington pushes its allies to pick sides, industrial decoupling further complicates the global geopolitical landscape.

In the long run, while US containment temporarily hinders China’s short-term industrial expansion, it has inadvertently catalyzed robust domestic innovation and a more resilient local industrial chain. Conversely, US chipmakers suffer revenue losses and shrinking R&D budgets amid lost access to China’s massive consumer market, and global supply chain fragmentation drives up manufacturing costs worldwide. History has repeatedly proven that technological blockades never stifle innovation but instead fuel the resolve of sanctioned economies to forge ahead independently.