The new cutting-edge 1,300 square meters semiconductor testing facility includes a 370 square meters class 10,000 clean room and is equipped with state-of-the-art testing equipment that meets the highest industry standards.

ALTER US aims to position itself as the leading US Outsourced Semiconductor Assembly and Test (OSAT) provider with end-to-end solutions for mission-critical applications.

The comprehensive range of services includes wafer testing, final testing, up-screening and qualification, radiation testing and technology analysis.

ALTER US, as a DDTC ITAR registered company, offers customised solutions for complex semiconductor and ASIC requirements across a diverse set of markets, including defence, aerospace/space, medical, power conversion, photonics and industrial.

By choosing Plymouth, ALTER is capitalising on the growing demand for semiconductor testing in the US, driven by advanced packaging, artificial intelligence, photonics, and the CHIPS Act, which aims to boost domestic semiconductor manufacturing. As circuit designs become more complex and reliability standards tighten, back-end testing has become a critical step in ensuring product quality, yield and supply chain stability.

Strengthening Minnesota's Semiconductor and Microelectronics Ecosystem

The new facility strengthens Minnesota's microelectronics ecosystem by adding required back-end capabilities. These typically include process steps after the semiconductor chips are manufactured, such as testing, packaging and integrating the chips into final products, thereby enhancing national security by US on-site services and securing the supply chain for key end-use industries. Geographic proximity to regional medical, defense and aerospace companies provides convenient access to advanced semiconductor testing services. ALTER's expansion into the U.S. was financially supported by the Minnesota Investment Fund and the Minnesota Job Creation Fund.

At a time when international co-operation and technological advances are crucial, the opening of the new facility also marks a significant step in transatlantic co-operation.