Western Design Center, Inc. (WDC)
Westcode Semiconductors Ltd(已經(jīng)并入IXYS) (WESTCODE)
White Electronic Designs(已經(jīng)并入Microsemi) (WHITE)
Winbond Electronics Corporation (WINBOND,華邦電子股份有限公司)
Wolfson (WOLFSON,歐勝微電子有限公司)