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| Fujitsu Compound Semiconductor, Inc. ( FCSI ) | |
| Fairchild Semiconductor 82 Running Hill Road - South Portland, ME 04016 USA - - | ||
| NEC Electronics, Inc. | ||
| Central Semiconductor 145 Adams Avenue - Hauppauge, NY 11788 USA - - | ||
| STMicroelectronics | ||
| Semicoa | ||
| Motorola Semiconductor 3102 N. 56th Street - Phoenix, AZ 85018 USA - - | ||
| Che Fong Hong Electronics Ltd. | ||
| New England Semiconductor division of Microsemi 6 Lake Street - Lawrence, MA 01841 USA - - | ||
| Vishay Intertechnology / Dale / Sprague / Vitramon / Roederstein | ||
| Inchange Semiconductor Co.,Ltd | ||
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