Bosch has started sample production at its Roseville plant, with commercial silicon carbide chip manufacturing now expected by late 2026 as the company expands U.S. capacity.
Bosch said it has finalized a $225 million agreement with the U.S. Department of Commerce under the CHIPS and Science Act and begun sample production at its Roseville, California semiconductor plant, with commercial silicon carbide chip output now expected by late 2026. The facility, which Bosch bought from TSI Semiconductors in 2023, represents a roughly $2 billion investment and is the company’s first U.S. semiconductor factory. The site includes about 130,000 square feet of clean-room space and combines front-end manufacturing with back-end testing. Bosch is producing silicon carbide chips on 200mm wafers for power electronics used in electric vehicles, energy conversion systems, solar inverters and industrial motor controls. Around 250 people currently work at the site, and Bosch said it plans to expand silicon carbide output into the mid-nine-figure unit range across its U.S. and German facilities while increasing total U.S. investment to as much as $7.5 billion by 2031.