- Panasonic (Matsushita)
- Panasonic Semiconductor
Development (PSDC)
- Paradigm
- Performance Semiconductor
- Pericom
- Philips
- Philsar Electronics
- Piezo Crystal
Company
- Pijnenburg
- Pixelworks
- PLX Technology
- PMC-Sierra
- Polyfet RF Devices
- Power Innovations
- Power Integrations
- PowerDsine
- Powerex
- Powersmart
- PowerTech
- PrairieComm
- Precision Monolithics
(PMI) (-> Analog Devices)
- Princeton Technology
(PTC)
- Protek Devices
- Qlogic
- QSound Labs
- QT Optoelectronics
- Qualcomm
- Quality Semiconductor
- Quantum Effect
Devices
- Quantum Research
Group
- QuickLogic
- RAD Data Communication
- Rambus
- Ramtron
- Rancho Technology
- Raytheon (->
Fairchild)
- Realtek
- Rendition
- RF Micro-Devices
- RF
Monolithics, Inc
- RF Power Components
- Ricoh
- Rise Technology
- Rockwell (->
Conexant)
- Rohm Electronics
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