David G. Tacelli

Credence Systems Corporation is the industry provider of design-to-test solutions for the global semiconductor industry. By applying leading-edge technology to lower the overall cost-of-test, Credence delivers competitive cost and performance advantages to integrated device manufacturers, wafer foundries, outsource assembly and test suppliers and fabless chip companies worldwide. Credence was founded in 1978 and is publicly traded on the Nasdaq stock market under the symbol CMOS. Headquartered in Milpitas, California, Credence maintains a worldwide presence in twenty countries.

Xcerra Corp. engages in the provision of test and handling capital equipment, interface products, test fixtures, and services to the semiconductor and electronics manufacturing industries. The company was founded by Roger W. Blethen in 1976 and is headquartered in Norwood, MA.

LTX Corp. manufactures semiconductor test equipment. The company is headquartered in Norwood, MA.

LTX International, Inc. provides semiconductor test solutions. The firm operates as a subsidiary of LTX-Credence Corp. The company is headquartered in in Norwood, MA.

StepTech, Inc. manufactures semi-conductor devices for wireless, automotive, power and consumer integrated circuits. The firm caters to vendors and Automatic Test Equipment (ATE). The company was founded by Lev Alperovich, David Oka and Tom Farkas and is headquartered in Hopkinton, MA.