Peregrine Semiconductor
 Peregrine Semiconductor (NASDAQ:PSMI) is a San Diego-based manufacturer of high-performance RF (radio frequency) CMOS integrated circuits. The company's products are used in aerospace and defense broadband industrial mobile wireless device test and measurement equipment and wireless infrastructure markets. Peregrine's UltraCMOS technology is a proprietary implementation of silicon on sapphire (SOS) and silicon on insulator (SOI) substrates that enables high levels of monolithic integration.