Sierra Monolithics, Inc. designs and manufactures analog and mixed signal integrated circuits for broadband wireless, optical communication, and microwave/millimeter wave applications. It offers wireless transceiver integrated circuits(IC), microwave transponders, millimeter wave ICs and modules, communication ICs, mixed signal, and RFIC custom designs. The company also provides custom integrated circuits and design services. Its products are used in wireless and wireline, and military applications. Sierra Monolithics, Inc. was founded in 1988 and is headquartered in Redondo Beach, California. As of December 9, 2009, Sierra Monolithics, Inc. operates as a subsidiary of Semtech Corp.