Micron sues YMTC, seeking ownership of four US patents

Micron has sued Chinese rival YMTC in Idaho, alleging former Micron engineers turned confidential engineering work into YMTC patents later used to sue Micron. The Sept. 15, 2026 complaint seeks ownership of four US patents, injunctions and damages.

• Micron seeks ownership of four US patents attributed to YMTC
• The complaint names former Micron engineers, including Hongbin Zhu and Daesik Song
• Micron alleges at least 20 employees moved from Micron to YMTC over a few years
• The dispute covers 3D NAND technology and eight groups of alleged trade secrets