Semiconductor Manufacturing Companies in California

California has approximately 35,000 manufacturing establishments and 1,300,000 manufacturing employees. California is the largest manufacturing state by output, leading in aerospace, semiconductors, medical devices, and food processing across its diverse regional economies.

California is one of the leading states for semiconductor manufacturing. Semiconductor manufacturing includes companies that fabricate integrated circuits, assemble and test chips, and produce semiconductor manufacturing equipment. The US is investing heavily in domestic chip production through the CHIPS Act, with Intel, TSMC, Samsung, and others building major new fabrication facilities across the country.

Integrated Device Manufacturers: Companies like Intel and Texas Instruments that design and fabricate their own semiconductor chips.

Pure-Play Foundries: Contract chip fabricators like TSMC and GlobalFoundries that manufacture chips designed by fabless companies.

OSAT Providers: Outsourced semiconductor assembly and test companies that package and test fabricated wafers.

Semiconductor Equipment Makers: Companies like Applied Materials and Lam Research producing the specialized tools used in chip fabrication.

Materials Suppliers: Producers of silicon wafers, photomasks, specialty gases, and chemicals used in semiconductor fabrication.

Major industrial centers in California include Los Angeles, San Diego, San Jose, San Francisco, Fresno, Irvine, and Long Beach. These cities have concentrations of manufacturers across sectors including semiconductor manufacturing, aerospace manufacturing, and medical device manufacturing.