Samsung, SK Hynix test Chinese chip tools as hedge against U.S. risks
Samsung Electronics and SK Hynix have spent about two years testing etching equipment from China's AMEC at their Chinese fabs, hedging against tighter U.S. export curbs on Western chipmaking tools.
Intelligence analysis by Llama
South Korean memory leaders Samsung and SK Hynix have quietly been testing etching tools from Shanghai-based AMEC at their China plants for about two years, framing the work as insurance against tighter U.S. export controls rather than a swap out of Western suppliers.
Some of the world's biggest chipmakers in South Korea are trying out tools made by a Chinese company, just in case America stops letting them use American tools in their China factories. It is like keeping a backup pencil in your desk when the teacher might take away your favorite one.
Analysis
Two years of quiet testing
Samsung Electronics and SK Hynix began evaluating etching gear from Shanghai-based AMEC roughly two years ago, when the U.S. export-control picture first grew murky. Three people familiar with the matter told Reuters the work is framed less as a deliberate pivot away from established U.S. chipmaking suppliers and more as parallel due diligence on a potential Plan B.
Should Washington decide to also restrict U.S.-origin chipmaking tools from being imported into Chinese fabs operated by foreign companies, the Korean giants would face a real operational problem at facilities such as SK Hynix's plants in Dalian and Wuxi. AMEC's etching tools, still under evaluation, sit firmly in the candidate pool for that contingency.
Validation money cannot buy
For AMEC, even an unsuccessful trial is a credibility event. The Shanghai-based firm has spent years building advanced etching equipment aimed largely at domestic Chinese customers. According to Reuters, the Korean evaluations offer AMEC a rare chance to secure validation from some of the world's leading chipmakers.
The Korean testers are also implicitly signaling that a Chinese alternative has crossed a basic performance bar. Reuters adds that the work has not yet translated into wider deployment, but the engagement itself would mark a step-change in how global memory makers price AMEC's technology in future contract talks.
Tokyo Electron and the rule book
Japan will be watching this story closely even though the Korean chipmakers are the protagonists. Tokyo Electron, Japan's champion in semiconductor deposition and coating, sits in adjacent segments of the same tool stack. An AMEC that wins real orders at world-class memory fabs would still compete in narrower niches than Tokyo Electron, but the gap it closes matters in any long-run strategic map drawn in Tokyo or Washington.
The harder variable is U.S. policy itself. Washington has shown it can move quickly, as the 2023 Netherlands-and-Japan-aligned curbs on ASML and Tokyo Electron demonstrated, and could in principle extend controls to tools made in China if foreign-owned fabs begin deploying them at scale. For now the Korean firms have a hedge on the shelf; whether they ever have to cash it in is a question for the Commerce Department more than the engineers.
Key points
- Samsung and SK Hynix began evaluating AMEC etching equipment roughly two years ago amid mounting U.S. export-control uncertainty, according to three sources cited by Reuters
- The trials focus on the Korean firms' Chinese fabs, including SK Hynix's plants in Dalian and Wuxi
- AMEC stands to gain rare validation from world-leading chipmakers even if the gear does not ship at scale
- No decision has been made on wider deployment, and established Western suppliers remain the primary toolset at the Korean firms' operations
- The hedging reflects broader industry preparation for U.S. controls that could one day extend to chipmaking tools at foreign-owned China facilities
If AMEC's gear passes muster and is adopted even partially at the Korean firms' Chinese fabs, the company gains a marquee global reference, accelerating China's domestic semiconductor tooling ecosystem. Samsung and SK Hynix, meanwhile, secure real supply-chain flexibility in a tightening regulatory climate without abandoning their preferred Western suppliers.
Washington could respond by extending controls to specifically cover Chinese-made tools once they appear inside foreign-owned Chinese fabs, handing Samsung and SK Hynix a compliance headache they tried to avoid. AMEC's promising evaluations may also fail to translate into production-grade yields, leaving the Korean firms back where they started — exposed to U.S. policy risk with no working alternative.