| 摘要 |
A bipolar power transistor of interdigitated geometry having a buried P type base region, a buried N type emitter region, a P type base-contact region, an N type emitter-contact region, connected to an emitter electrode and an N type connection region disposed around the emitter-contact region. The emitter region is buried within the base region in such a way that the buried emitter region and the connection region delimit a P type screen region. The transistor further includes a biasing P type region in contact with the emitter electrode, which extends up to the screen region.
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