Chinese chipmaker Semiconductor Manufacturing International Corp (SMIC, 中芯) “potentially” broke US law if it manufactured a processor for sanctioned telecom giant Huawei Technologies Co (華為), a senior US official said on Thursday.
US Undersecretary of Commerce for Industry and Security Alan Estevez was questioned about the 7-nanometer processor that SMIC made for Huawei during testimony before US lawmakers. When asked by US House of Representatives Foreign Affairs Committee Chairman Michael McCaul whether SMIC violated US controls, Estevez said “potentially, yes.”
The Chinese chipmaker’s shares slid as much as 5.5 percent in Hong Kong, its biggest intraday drop in about a month.
Photo: AFP
“We’ll assume that it was SMIC,” Estevez said. “I can’t talk about any investigations that may or may not be going, but we certainly share those concerns, and that’s certainly the reporting.”
Estevez described SMIC’s manufacturing process as “low-yield,” repeating past comments from commerce officials questioning China’s ability to produce advanced chips at scale and at a consistent performance threshold.
Estevez heads the agency’s Bureau of Industry and Security, which is responsible for chip export controls and sanctions that the administration if US President Joe Biden hopes will kneecap China’s semiconductor ambitions. Biden has introduced sweeping restrictions on the ability of Chinese companies to purchase advanced chips and chipmaking gear from US firms, and persuaded key allies including the Netherlands and Japan to introduce their own curbs.
Despite those efforts, Shenzhen, China-based Huawei managed to debut an advanced 7-nanometer chip in a smartphone that went on sale while US Secretary of Commerce Gina Raimondo was visiting China in August last year. The chip in Huawei’s Mate 60 device was manufactured by SMIC but relied heavily on technology from Dutch equipment giant ASML Holding NV and US gear makers including Lam Research Corp and Applied Materials Inc.
That equipment was exported to China before US and Dutch curbs limiting such transactions went into effect, Bloomberg News has reported.
“They did access tools before we put in our tool controls — not the highest-end tools, but the level just below that,” Estevez said. “Those tools will ossify over time and that process will be degraded.”
The US Bureau of Industry and Security in September last year said that it is probing the “purported” 7-nanometer chip, and Raimondo has vowed the “strongest possible” action to protect US national security.
The Biden administration is considering sanctioning Huawei’s secretive network of potential chipmaking partners, as well as a couple of firms officials say could purchase restricted equipment and sell it to the telecom giant.
US officials are also pushing their Dutch and Japanese counterparts to tighten their chip controls — and trying to persuade Germany and South Korea to join the arrangement, particularly to stem the flow of spare parts from those countries to China.
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