Electron recombination at the silicided base contact of an advanced self-aligned poly-silicon emitter

An advanced self-aligned high-speed bipolar transistor (HS4) with a polysilicon emitter is presented. The silicided external base region is separated from the polysilicon emitter by an oxide sidewall spacer. The effect of the spacer width and the dopant concentration underneath this spacer on the electron recombination current at the base contact is described.<
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