Jim Cable, Ph.D., has been named president and CEO of Peregrine Semiconductor, replacing Stavro E. Prodromou, Ph.D., who will continue to advise the company as a director and chairman of the board.   . . .   Epitech Technology Corp., based in Taiwan, has recently contracted for two AIXTRON MOCVD production tools to manufacture AlGaInP UHB LED wafers. Epitech designs, develops, manufactures and markets epitaxial products.