Yangtze Memory Technologies Co., Ltd.

Yangtze Memory Technologies Co., Ltd. (YMTC) is a privately held Chinese semiconductor company founded in July 2016 and headquartered in Wuhan, China. As a key player in China's efforts to build a domestic semiconductor industry, the company is backed by various state-linked investment funds. Formerly a subsidiary of Tsinghua Unigroup, YMTC's parent holding company was valued at approximately $22.3 billion following a 2025 funding round. The company employs several thousand people, with estimates ranging from over 6,000 to around 8,000.

YMTC is an integrated device manufacturer that designs, produces, and sells 3D NAND flash memory chips. Its products are used in a wide range of applications, including mobile devices, personal computers, data centers, and consumer electronics. The company's offerings include 3D NAND wafers, embedded memory chips (like eMMC and UFS), and solid-state drives (SSDs) for both consumer and enterprise markets. YMTC is known for its patented Xtacking architecture, which separates the manufacturing of memory cell arrays and peripheral logic circuits onto two different wafers that are later bonded together.

As an operating company, YMTC's patent litigation profile in the U.S. is that of a defendant. The company has been tracked in one U.S. patent case, where it is defending against a suit filed in the plaintiff-friendly U.S. District Court for the Eastern District of Texas. This posture is typical for a manufacturing company being targeted by a patent assertion entity.

The tracked case is Palisade Technologies, LLP v. Yangtze Memory Technologies Co., Ltd., filed in late 2025. This litigation occurs in the broader context of significant geopolitical and trade pressures. In December 2022, the U.S. government added YMTC to its Entity List, restricting its access to certain U.S. technologies. Despite these restrictions, the company has reportedly continued to grow its global market share for NAND flash memory.