QP Semiconductor, Inc., a fabless semiconductor company, designs, manufactures, re-engineers, and provides integrated circuits for military and aerospace industries. It offers analog products ranging from op amps and comparators to voltage regulators; and logic products, including line drivers and receivers. QP Semiconductor Inc is a full QML Class Q & Class V certified manufacturer of monolithic Integrated Circuits with over 3380 approvals by DSCC to FSC 5962 & M38510/ Specifications. 

QP Semiconductor has been serving military, aerospace and high reliability industries for over 25 years and moving forward, e2v will continue offering QP’s US semiconductor capabilities as well as expanded services and solutions critical to mil/aero and hi-rel industrial OEMs. The company also provides EPROM products to support various Hi Rel and military applications; FIFO products; microcontrollers; microprocessor and peripherals; programmable logic devices; BiPolar PROM products; CMOS PROM products; and SRAM products. In addition, it offers replacement hermetic parts for diminished manufacturing sources and end of life products.

Their focus & support is for extending the life of legacy, discontinued & end-of-life IC's for Mission & Safety Critical Applications in the Military, Aerospace, & Hi-Reliability Environments. Headquartered in Santa Clara, California, USA- the company was acquired by e2v in October 2008.