U.S. export control measures restrict companies sending chips and chip-making equipment to China.
Photo:
FLORENCE LO/REUTERS
BEIJING–U.S. chip equipment suppliers are pulling out staff based at China’s leading memory chip maker and pausing business activities there, according to people familiar with the matter, as they rush to assess the impact of Commerce Department semiconductor export restrictions.
State-owned Yangtze Memory Technologies Co. is facing a freeze in support from key suppliers including
KLA Corp.
KLAC -6.15%
and
Lam Research Corp.
LRCX -6.75%
, the people said. The suspensions follow last week’s sweeping curbs imposed by the U.S. on China’s chip sector, ostensibly to prevent American technology from advancing China’s military power, though the impact might reach further into the industry.
The U.S. suppliers have paused support of already installed equipment at YMTC in recent days and temporarily halted installation of new tools, the people said. The suppliers are also temporarily pulling out their staff based at YMTC, the people said.
U.S. chip equipment manufacturers have dozens of employees stationed at YMTC’s factory. They play a crucial role in operating the factory and developing its manufacturing capabilities, as they bring in expertise on highly technical chip production tools, people familiar with the situation said. If the halt is extended, customers such as YMTC face being cut off from upgrades, maintenance expertise and future technology they need to develop chips.
YMTC, KLA and Lam Research didn’t respond to requests for comment.
While the moves might be temporary, they are immediate signs of business disruptions facing Chinese chip makers and U.S. technology suppliers as Washington escalates its efforts to stifle China’s emerging semiconductor industry. The U.S. export control measures, which restrict companies sending chips and chip-making equipment to China, are some of the broadest the U.S. has enacted against China’s semiconductor industry. They veer from previous actions that often targeted individual companies and a narrower subset of technology.
—Asa Fitch contributed to this article.
Write to Yoko Kubota at [email protected] and Raffaele Huang at [email protected]
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