China IP Battle Takes New Turn

A court temporarily bans Micron from selling select chips in China.


Micron Technology appears to have suffered a legal setback in its suit against Taiwan’s United Microelectronics Corp. (UMC) in China.

On Tuesday, UMC announced that the Fuzhou Intermediate People’s Court of the People’s Republic of China (PRC) issued a preliminary injunction against Micron Semiconductor (Xi’an) and Micron Semiconductor (Shanghai), enjoining Micron from offering to sell, and selling in the PRC 26 DRAM and NAND-related items, including certain solid-state hard drives and memory sticks in China.

Last year, Micron filed suit again UMC, alleging that UMC stole memory technology from the company and transferred it to Jinhua Integrated Circuit Co., a DRAM maker in China.

In response, UMC filed patent infringement lawsuits against Micron with the mainland China courts in January of 2018, covering three areas, including specific memory applications related to DDR4, SSD and memory used in graphics cards. With the ruling, Micron’s products now face injunction for violating UMC’s patent rights in a court verdict that applies to all of mainland China.

Jason Wang, co-president of UMC, stated, “UMC is pleased with today’s decision. UMC invests heavily in its intellectual property and aggressively pursues any company that infringes UMC’s patents.”

Micron, according to reports, has not been served with the injunction. Micron’s stock fell 5.51% in after-hours trading.

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