Advanced Micro-Fabrication Equipment Inc. China

Advanced Micro-Fabrication Equipment, commonly abbreviated as AMEC, is a Chinese semiconductor equipment manufacturer headquartered in Shanghai. The company develops and supplies process equipment used in the manufacture of integrated circuits and other semiconductor devices. Its principal business is etch equipment, particularly plasma-based systems that selectively remove materials from wafers to create the structures required by logic, memory, and specialty semiconductor processes. AMEC also operates in metal-organic chemical vapor deposition, or MOCVD, equipment and related thin-film process technologies. AMEC was co-founded in May 2004 by Gerald Yin, who had previously worked for Applied Materials and Lam Research in China. The company attracted early investment from international semiconductor-industry participants, including Qualcomm and Samsung. Within its first several years, AMEC had developed its own etching machine, establishing the technical and commercial foundation for its later expansion. Its development occurred alongside the growth of China's domestic semiconductor-manufacturing base and national efforts to strengthen local sources of semiconductor production equipment. The company's history has included significant intellectual-property disputes with established international equipment suppliers. Applied Materials filed a lawsuit in 2007 concerning former employees and patent issues; the matter was settled in 2010 through an agreement concerning joint ownership of a patent family. Lam Research brought a patent case in Taiwan in 2009, which was dismissed. AMEC subsequently pursued a trade-secret claim in Shanghai concerning plasma-etch equipment. Chinese courts ruled in AMEC's favor, with the judgment ultimately affirmed by the Shanghai High People's Court in June 2023. AMEC also reached a 2018 settlement with Veeco following a dispute involving MOCVD-related patents. AMEC completed its initial public offering on 22 July 2019 and became listed on the Shanghai Stock Exchange's STAR Market under ticker 688012. It is described as partially state-owned, and its reported major shareholders have included Shanghai Venture Capital Co., Hong Kong Exchanges and Clearing, and the China Integrated Circuit Industry Investment Fund. The listing provided a public-market platform for continued investment in research, manufacturing capacity, and product development. AMEC has also been affected by the geopolitical and regulatory environment surrounding advanced semiconductors. Following the United States export controls that took effect in October 2022, the company's shares experienced a sharp decline on the first trading day after implementation. AMEC's management said in 2023 that domestic alternatives could replace much of the restricted imported equipment and that the company expected its operating capacity to recover as China's semiconductor self-sufficiency efforts progressed. In 2024, the United States Department of Defense added AMEC to its Chinese Military Companies list under Section 1260H of the National Defense Authorization Act, after earlier additions and removals. AMEC denied having connections to the People's Liberation Army, challenged the designation in court, and was removed from the list again in December 2024. The brand is positioned as a domestic Chinese supplier of advanced semiconductor process equipment, with particular emphasis on etch systems capable of supporting demanding process nodes. Public descriptions identify its Primo Nanova etching machines with applications extending to 14 nm, 7 nm, and 5 nm processes, and identify AMEC as one of the suppliers of etch equipment used in TSMC's 7 nm production lines. The company remains an active publicly traded semiconductor-equipment business, although detailed current operating, ownership, and executive information should be verified against its latest corporate disclosures.

AMEC was co-founded in May 2004 in China by Gerald Yin, a semiconductor-equipment executive with previous experience at Applied Materials and Lam Research in China. Early investors reportedly included Qualcomm and Samsung. The company pursued the development of domestic semiconductor process equipment, initially emphasizing etch technology. Within three years, it had developed its own etching machine, providing a foundation for later commercial expansion. The company's early growth was accompanied by intellectual-property litigation involving established foreign equipment suppliers. Applied Materials sued AMEC in 2007 in a dispute concerning former employees and patent matters. The case was settled in 2010, with the parties agreeing to joint ownership of a patent family. Lam Research filed a patent case against AMEC in Taiwan in 2009, but the case was dismissed. In December 2010, AMEC filed a counterclaim in Shanghai alleging that Lam Research had infringed trade secrets related to plasma-etch equipment. A Chinese court ruled for AMEC in 2017, and the Shanghai High People's Court issued a final judgment in AMEC's favor on 30 June 2023. AMEC expanded beyond etch into metal-organic chemical vapor deposition equipment. In 2017, Veeco filed a patent case against AMEC. Chinese customs detained imported Veeco MOCVD equipment in January 2018 on alleged patent-infringement grounds, and the two companies reached a settlement the following month. These disputes were important to AMEC's competitive development because they involved technologies central to semiconductor manufacturing and reflected the legal barriers faced by newer domestic suppliers entering markets dominated by international companies. On 22 July 2019, AMEC completed its initial public offering and began trading on the Shanghai Stock Exchange's STAR Market under ticker 688012. The company is described as partially state-owned. Reported major shareholders have included Shanghai Venture Capital Co., Hong Kong Exchanges and Clearing, and the China Integrated Circuit Industry Investment Fund. Its public listing supported continued investment in semiconductor-equipment research and manufacturing while making the company one of China's most visible listed equipment makers. The company became increasingly exposed to United States-China technology controls. In July 2022, AMEC disclosed a plan under which six executives, including Yin, could sell shares. Yin later disclosed that he had sold 549,500 shares by the end of September. After United States export controls on advanced computing and semiconductors supplied to China took effect on 7 October 2022, AMEC's shares dropped sharply. The timing prompted public speculation, but the available account states that there was no evidence demonstrating that the executives knew in advance about the forthcoming restrictions. In September 2023, Yin said the restrictions would have a limited operational effect and that most of the newly restricted imported equipment could be replaced by domestic alternatives. In January 2024, the United States Department of Defense again added AMEC to its Chinese Military Companies list under Section 1260H of the National Defense Authorization Act for Fiscal Year 2021. AMEC had previously appeared on the list in January 2021, was removed in June of that year, and was later relisted. The company denied connections to the People's Liberation Army and said the designation did not impose specific sanctions that would materially affect its operations. AMEC announced a lawsuit against the designation in August 2024, and it was removed from the list again in December 2024. In February 2024, AMEC also announced a 300 million to 500 million yuan share-repurchase plan, presenting the action as a sign of confidence in China's semiconductor industry. In April 2025, Yin renounced his United States citizenship and restored Chinese nationality. AMEC remains an active listed semiconductor-equipment manufacturer focused on etch, MOCVD, and related wafer-fabrication technologies.

1. 2024United States military-company designation and subsequent removal

   AMEC was added to the United States Department of Defense's Chinese Military Companies list in January and removed again in December.

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2. 2023Final judgment in Lam Research dispute

   The Shanghai High People's Court issued a final judgment in favor of AMEC in its long-running trade-secret dispute with Lam Research.

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3. 2019STAR Market listing

   AMEC completed its initial public offering and listed on the Shanghai Stock Exchange's STAR Market under ticker 688012.

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4. 2007First internally developed etching machine

   Within three years of its establishment, AMEC had developed its own etching machine.

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5. 2004AMEC is co-founded in China

   Gerald Yin co-founded Advanced Micro-Fabrication Equipment in May 2004 to develop semiconductor manufacturing equipment.

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A Chinese semiconductor wafer-fabrication equipment supplier focused on plasma etch, advanced process-node support, and complementary thin-film deposition technologies.

• Etch equipmentSemiconductor manufacturing equipment

  Etch systems are AMEC's principal product category. They use controlled plasma and related process techniques to selectively remove thin films from semiconductor wafers, creating the small-scale structures used in integrated-circuit fabrication. Public descriptions associate AMEC's Primo Nanova systems with 14 nm, 7 nm, and 5 nm process applications. The equipment is relevant to logic, memory, and specialty semiconductor manufacturing.

• Primo Nanova etching machinesPlasma etch equipment

  Primo Nanova is a family of AMEC etching machines identified in public reference material as supporting applications at 14 nm, 7 nm, and 5 nm process nodes. The systems are designed for wafer-fabrication steps in which material must be removed with high selectivity and dimensional control. AMEC has been identified as one of the suppliers of etch equipment for TSMC's 7 nm production lines.

• MOCVD equipmentThin-film deposition equipment

  AMEC's metal-organic chemical vapor deposition equipment forms semiconductor films through gas-phase chemical reactions involving metal-organic precursors. MOCVD systems are used on wafers or other substrates for applications requiring controlled compound-semiconductor or related thin-film layers. This product area extends AMEC's portfolio beyond etch and was the subject of a patent dispute with Veeco that was settled in 2018.

• 2024Share repurchase planOther

  AMEC announced the plan amid heightened geopolitical pressure on China's semiconductor industry and restrictions affecting advanced semiconductor technology.

  What changed. The company announced a share repurchase plan valued at 300 million to 500 million yuan.

  Aftermath. The plan was presented as a measure reflecting management confidence in China's semiconductor manufacturing and equipment sectors.

  Planned share repurchase value. 300 million to 500 million yuan (Announced February 2024)

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• 2024Challenge to United States military-company designationOther

  The United States Department of Defense added AMEC to its Chinese Military Companies list under Section 1260H.

  What changed. AMEC announced that it had filed a lawsuit against the designation and denied links to the People's Liberation Army.

  Aftermath. AMEC was removed from the list again in December 2024.

  Source
• 2018Settlement with Veeco over MOCVD patent disputeOther

  Veeco had filed a patent lawsuit against AMEC, and Chinese customs had detained imported Veeco MOCVD equipment over alleged patent infringement.

  What changed. AMEC and Veeco reached a settlement agreement in February 2018.

  Aftermath. The settlement ended the immediate patent dispute and strengthened AMEC's position in the MOCVD equipment conflict.

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• 2010Settlement with Applied Materials over patent disputeOther

  Applied Materials had alleged that former employees working at AMEC were involved in patent-related problems.

  What changed. The companies settled and agreed to jointly own the relevant patent family.

  Aftermath. The settlement resolved the dispute while allowing AMEC to continue developing and commercializing its equipment technologies.

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• 2022Executive share-sale timing controversyControversy

  AMEC disclosed planned share sales by six executives, including Gerald Yin, shortly before United States advanced-semiconductor export controls took effect and the company's shares fell sharply. The timing generated public speculation about possible insider trading, but the available reference states that there was no evidence showing that the executives knew in advance about the upcoming restrictions.

  Source

• 2024United States adds AMEC to Chinese Military Companies list

  The United States Department of Defense added AMEC to its Chinese Military Companies list under Section 1260H. AMEC denied links to the People's Liberation Army and said the designation would not materially affect operations.

  RegulationOther
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• 2024AMEC announces share repurchase plan

  AMEC announced a planned repurchase of company shares valued at 300 million to 500 million yuan.

  Pricing
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• 2024AMEC files lawsuit over United States military-company designation

  AMEC announced that it had filed a lawsuit against the United States Department of Defense over its inclusion on the Chinese Military Companies list.

  LawsuitRegulation
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• 2024AMEC removed from United States Chinese Military Companies list

  AMEC was removed from the United States Department of Defense list in December 2024.

  Regulation
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• 2023AMEC describes export-control impact as manageable

  Gerald Yin said United States import restrictions would have a limited effect and that domestic alternatives could replace much of the restricted equipment.

  Regulation
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• 2023Shanghai High People's Court issues final judgment in AMEC-Lam Research dispute

  The Shanghai High People's Court issued a final judgment in favor of AMEC in its long-running trade-secret dispute with Lam Research.

  Lawsuit
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• 2022AMEC shares fall after United States semiconductor export controls take effect

  AMEC shares fell more than 19% on the first trading day after new United States controls on advanced computing and semiconductors supplied to China took effect.

  RegulationPricing
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• 2022AMEC executives disclose planned share sales

  AMEC disclosed that six executives, including Gerald Yin, planned to sell shares for personal cash needs. Yin later reported selling 549,500 shares by the end of September.

  Other
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• 2019AMEC completes STAR Market initial public offering

  AMEC became a publicly listed company on the Shanghai Stock Exchange's STAR Market under ticker 688012.

  Other
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• 2018AMEC and Veeco settle MOCVD patent dispute

  After a patent dispute and the detention of imported Veeco MOCVD equipment by Chinese customs, the parties reached a settlement.

  LawsuitOther
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• 2010AMEC and Applied Materials settle patent dispute

  The companies reached a settlement under which they agreed to jointly own the relevant patent family.

  LawsuitOther
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• 2010AMEC launches trade-secret counterclaim against Lam Research

  AMEC brought a counterclaim in Shanghai alleging infringement of trade secrets related to plasma-etch equipment.

  LawsuitOther
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• 2007Applied Materials files intellectual-property lawsuit against AMEC

  Applied Materials sued AMEC over allegations involving former employees and patent issues.

  LawsuitOther
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1. Advanced Micro-Fabrication Equipment
2. Advanced Micro-Fabrication Equipment official website