MPI Corp

MPI Corp, officially MPI Corporation, is a publicly traded semiconductor test equipment company founded in 1995. Headquartered in Hsinchu, Taiwan, the company is listed on the Taipei Exchange (TPEx: 6223). For the full year ended December 31, 2025, MPI Corporation reported revenue of TWD 13.37 billion. The company employs approximately 922 people.

MPI Corporation is an operating company that provides test and measurement solutions for the semiconductor industry. Its business is organized into several divisions: Probe Card, Advanced Semiconductor Test, Thermal Test, Celadon Systems, and Focus Microwaves. The company manufactures and sells a portfolio of products including advanced probe cards, engineering probe systems, automated optical inspection systems, and thermal air stream systems used for testing integrated circuits, silicon photonics, and high-power devices for the automotive, datacenter, and aerospace markets.

As a litigant, MPI Corporation acts as an operating company asserting its own patents. The company's sole tracked case is as a plaintiff, consistent with an operating company enforcing its intellectual property rights rather than defending against frequent NPE assertions. This single case was filed in a jurisdiction known for patent litigation, the Eastern District of Texas.

The company's tracked litigation is the case MPI Corp v. Technoprobe SPA, filed on April 17, 2026, in the Eastern District of Texas. In the suit, MPI accuses its competitor, Italy-based Technoprobe, of infringing two U.S. patents related to probe cards for wafer testing. The dispute is mutual, as Technoprobe has also filed a motion for a provisional injunction against MPI in Taiwan, alleging infringement of a Taiwanese patent.