According to our records, this business is located at 3017 Copper Rd. in Santa Clara (in Santa Clara County), California 95051, the location GPS coordinates are: 37.3761556 (latitude), -121.9923718 (longitude). First Semiconductor Tchnlgs is categorized under Radiation Sensors (SIC code 3674). Known organization vice president is Bill Lee. Current estimates show that the unit has a sales volume of $2,565,000 and staff of approximately 5 people. You can contact the company by phone at (408) 328-0900. Business website can be accessed at www.1stsemi.com.