Micrel, Inc. designs, develops, manufactures and markets analog power integrated circuits (ICs), mixed-signal ICs and digital ICs. It also manufactures custom analog and mixed-signal circuits and provides wafer foundry services for customers that produce electronic systems for communications, consumer and military applications. The company operates through one segment: Semiconductor Products. It also offers radio frequency data communication products. Micrel was founded by Raymond D. Zinn in July 1978 and is headquartered in San Jose, CA.