Mr. Martinella joined Sigma in May 1994 as Director, VLSI Engineering. In December 1995, Mr. Martinella became Vice President, Engineering. From June 1990 to April 1994, Mr. Martinella served in engineering and management positions at Weitek, a microchip manufacturer. In addition, Mr. Martinella was an engineer at National Semiconductor, a semiconductor manufacturer, from June 1982 to June 1990.
