US lawmaker demands action against Chinese chip firm CXMT after Micron

US lawmaker demands action against Chinese chip firm CXMT after Micron

Representative Mike Gallagher, an influential lawmaker whose select committee on China has pressed the Biden administration to take tougher stances on China, is the only lawmaker so far to call for retaliatory action.

The US “must make clear to the PRC (People’s Republic of China) that it will not tolerate economic coercion against its companies or its allies”, Gallagher said in a statement.

“The Commerce Department should immediately add ChangXin Memory Technologies to the entity list and ensure no US technology, regardless of specifications, goes to CXMT, YMTC, or other PRC firms operating in this industry.”

CXMT is China’s leading maker of DRAM memory chips and the domestic competitor most likely to benefit if Micron is barred from China’s massive chip market.

YMTC, or Yangtze Memory Technologies Corp, is a Chinese chipmaker put on the entity list December 2022.

Gallagher also said the Commerce Department must ensure “no US-export licenses granted to foreign semiconductor memory firms operating in (China) are used to backfill Micron, and our South Korean allies, who have experienced exactly this kind of CCP (Chinese Communist Party) economic coercion firsthand in recent years, should likewise act to prevent backfilling.”

Korea’s Samsung Electronics Co Ltd and SK Hynix, which both operate memory chip factories in China, and other non-Chinese firms were spared the brunt of US export controls on chip manufacturing gear imposed in October, but they are operating under exemptions from the US rules that can expire or be revoked.

Samsung and SK Hynix did not immediately return requests for comment. 

Analysts believe CXMT’s chips are two to three generations behind industry leaders Micron, Samsung and SK Hynix.

Gallagher’s call comes weeks after US makers of chip manufacturing equipment say they received a clarification from US export control authorities that will allow them to ship more tools to China than initially anticipated.

Lam Research Corp, the leading maker of tools for manufacturing memory chips, told investors the clarification could result in hundreds of millions of dollars in additional sales from China.

The clarification from the Commerce Department concerned how memory chip features are measured for the purposes of applying export control rules.

How such chips are measured can vary with what tools and materials are used to make them and how they are designed, said Dan Hutcheson, vice chair of TechInsights Inc, which produces research reports on the semiconductor industry.

Even among the makers and buyers of memory chips, “it tends to be this big debate”, Hutcheson said.