| 摘要 |
1,096,280. Semi-conductor devices. PHILCO-FORD CORPORATION. April 13, 1965 [April 13, 1964], No. 15857/65. Heading H1K. An integrated dual planar transistor has a rectangular common collector 66 embraced at opposite ends by two C-shaped emitters 64. The collector and emitters are produced simultaneously by diffusion through windows etched (using a photo-resist method) in a silicon oxide mask 52. The device may be used as a chopper.
|
