IRVINE, Calif., Aug 12, 2009 (GlobeNewswire via COMTEX News Network) -- Microsemi Corporation (Nasdaq:MSCC), a leading manufacturer of high performance analog/mixed signal integrated circuits and high reliability semiconductors, announced today that space-level qualification has been granted by the Defense Supply Center Columbus (DSCC) on Microsemi's first family of radiation-hardened power MOSFET devices.    More...