Micron filed a US lawsuit accusing Chinese memory maker YMTC of poaching its key engineers and then using the engineers' patents to sue Micron for infringement

Court filings reveal that YMTC has used patents derived from poached Micron engineers to sue Micron for infringement, creating a direct legal challenge based on stolen intellectual property.

Micron Technology has filed a lawsuit against China's Yangtze Memory Technologies Corp. (YMTC), alleging that YMTC systematically poached its key engineers. The lawsuit claims that these former Micron employees then patented Micron's proprietary 3D NAND memory technology and know-how. According to Micron, YMTC is now using these patents, which it claims were developed using Micron's intellectual property, to sue Micron for patent infringement in various international jurisdictions. Micron asserts that YMTC's strategy involved recruiting engineers who then patented inventions similar to those they worked on at Micron, some of whom allegedly concealed their new roles at YMTC on professional networking sites and violated ongoing confidentiality obligations.

The lawsuit details a sophisticated intellectual property strategy by YMTC, involving the rapid assembly of a patent portfolio that allegedly overlaps with existing 3D NAND manufacturers, enabling it to target competitors like Micron. This aggressive patent assertion strategy, coupled with the alleged poaching of specialized talent, indicates a broader trend of Chinese tech firms seeking to accelerate their technological advancement and market competitiveness through means that include acquiring and leveraging intellectual property developed elsewhere.

Micron's legal action highlights the intense competition and alleged underhanded tactics in the global semiconductor memory market, particularly between US and Chinese companies. The implications extend beyond Micron, potentially impacting YMTC's ability to operate and expand globally, especially given existing US sanctions, and could lead to increased scrutiny of cross-border talent acquisition and IP protection in the high-tech sector.