September 25, 2025 /SemiMedia/ — LA Semiconductor has launched the sale of its wafer manufacturing plant in Pocatello, Idaho, with Macquarie Group appointed to oversee the process.

The 31-acre facility includes more than 57,000 square feet of cleanroom space, expandable for future needs. It currently manufactures processes ranging from 0.18µm to 1.5µm, covering BCD, CMOS, bipolar, MEMS, and discrete devices, with lithography capability down to 0.13µm. The site also houses a prototype assembly lab and 7,000 square feet dedicated to probe and test operations.

Acquired from onsemi in 2022, the fab has undergone process upgrades and IP development. Co-general manager Tony Little said the site is operating at its “most stable and efficient” level since the acquisition.

Executives noted that buyers increasingly prefer brownfield fabs that can enter production more quickly than greenfield projects. Co-general manager Pat Sedlmayer said the planned divestment aligns with the company’s strategy to streamline operations and sharpen its focus as an ITAR-registered onshore foundry.

Despite the planned sale, LA Semiconductor will continue to operate and provide custom semiconductor solutions for automotive, defense, aerospace, medical, industrial, and commercial sectors.