Gustav A. Wirz

Tec-Sem USA, Inc. manufactures devices for measurement of the electrical properties of silicon wafers. The firm also manufactures and supports advanced epitaxial, ion implantation wafer monitoring and surface conditioning systems. The company was founded in 1993 and is headquartered in Billerica, MA.

Tec-Sem USA, Inc. manufactures devices for measurement of the electrical properties of silicon wafers. The firm also manufactures and supports advanced epitaxial, ion implantation wafer monitoring and surface conditioning systems. The company was founded in 1993 and is headquartered in Billerica, MA.

Alphasem GmbH provides electronic-circuit-assembly equipment. The company specializes in air bearings, volumetric dispense systems and epoxy writing. Alphasem was founded in 1979 and is headquartered in Berg, Switzerland.

Alphasem GmbH provides electronic-circuit-assembly equipment. The company specializes in air bearings, volumetric dispense systems and epoxy writing. Alphasem was founded in 1979 and is headquartered in Berg, Switzerland.