AMD
Allegro MicroSystems
Altera
Analog Devices
Cal-Chip
Central Semiconductor
Comchip
Diodes Inc.
Fairchild Semiconductor
Freescale Semiconductor
General Semiconductor
Intersil
International Rectifier
Linear Technology

Maxim/Dallas Semiconductor
Microchip Technology
Microsemi
Motorola
National Semiconductor
ON Semiconductor
Philips Semiconductor
Samsung
ST Microelectronics
Surge Components
TI/Unitrode
Toshiba
Vishay/Siliconix
Xilinx