Semiconductor Manufacturing Companies in Illinois

Illinois has approximately 13,000 manufacturing establishments and 570,000 manufacturing employees. Illinois is a top-five manufacturing state, with Chicago as a metal fabrication and food processing center, Peoria as Caterpillar's headquarters, and a vast network of industrial suppliers.

Illinois contributes to the national semiconductor manufacturing landscape. 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 Illinois include Chicago, Rockford, Peoria, Aurora, Joliet, and Elgin. These cities have concentrations of manufacturers across sectors including metal fabrication, food processing manufacturing, and chemical manufacturing.