AMEC

Advanced Micro-Fabrication Equipment Inc., China (中微公司; SH: 688012) was founded in Shanghai in 2004 by Yin Zhiyao (Gerald Yin), a chemist who had spent nearly two decades at Applied Materials, Lam Research forerunner companies, and Intel in the United States before returning to China. Yin's biography is emblematic of a pattern that recurs across China's domestic semiconductor equipment industry: a wave of engineers trained inside the very American toolmakers whose technology Beijing now wants to replace, returning home with process knowledge that would otherwise have taken decades to reconstruct independently. AMEC listed on Shanghai's STAR Market in 2019, among the exchange's first cohort of high-tech IPOs, raising capital that funded an aggressive expansion of its etch-tool R&D. AMEC's core competency, unlike broad-line rivals such as NAURA, is narrow and deep: plasma etch. The company produces capacitively coupled plasma (CCP) etch tools, inductively coupled plasma (ICP) etch tools, and — increasingly important as Chinese memory makers scale 3D NAND and DRAM — high-aspect-ratio etch systems used to cut the deep, narrow channels that define modern 3D memory architectures. AMEC's Primo AD-RIE dielectric etch tool, now in its second generation, is deployed at SMIC for 32nm and below, while its ICP etch tools have been qualified alongside NAURA's at SMIC's 14nm node. SMIC alone has purchased more than 800 AMEC etch tools across its fabs, making AMEC one of the foundry's most deeply embedded domestic equipment partners. What sets AMEC apart from every other Chinese equipment maker is that its technology flow runs in both directions across the geopolitical line. AMEC's CCP etch tools are qualified for volume production in TSMC's 7nm and 5nm lines in Taiwan — a striking fact, since it means a mainland Chinese toolmaker's equipment sits inside the production flow of the world's most advanced and most geopolitically sensitive foundry, one whose fabs are subject to the tightest control regimes in the industry. This qualification long predates the current wave of export restrictions and reflects AMEC's etch technology being judged competitive on pure technical merit rather than policy preference, a distinction none of AMEC's domestic peers can claim at the same node depth. AMEC's finances have benefited from surging Chinese fab capacity expansion, particularly in memory. For fiscal 2025, AMEC reported revenue of approximately $1.74 billion (RMB 12.38 billion), up 36.6% year-over-year, with net profit around $310 million (RMB 2.11 billion), up 30.6% — growth the company has attributed substantially to high-aspect-ratio etch tool sales tied to Chinese memory fab expansion. AMEC, NAURA, and ACM Research Shanghai form China's domestic "Big Three" equipment makers, though AMEC's addressable footprint is narrower than NAURA's given its etch-only focus. AMEC's regulatory history has been unusually contentious even by the standards of US-China chip tensions. In January 2024, the US Department of Defense added AMEC to its Section 1260H list of alleged "Chinese military companies," a designation the Pentagon based substantially on AMEC's having received a 2019 "Manufacturing Individual Champion Product Award" from China's Ministry of Industry and Information Technology — an award AMEC insisted was a purely commercial manufacturing citation with no military nexus. AMEC sued the Department of Defense in US federal court to have the designation vacated, arguing it caused irreparable reputational and commercial harm, and in December 2024 the Pentagon rescinded the listing. That same month, however, a separate BIS rule removed AMEC from the Validated End-User (VEU) program, stripping it of streamlined import authorization for certain US-origin equipment even as AMEC itself was not placed on the formal Entity List. The combined effect leaves AMEC in an unusual position among Chinese toolmakers: a company whose etch technology is trusted enough to run inside TSMC's advanced lines, yet one still caught in the crossfire of Washington's broader campaign to slow Chinese semiconductor self-sufficiency.