Patent ID: 9159801
Filing Date: 2015-10-13
Classification: G06F,H01L

Abstract:
1. A bipolar junction transistor comprising: an intrinsic base layer; a silicide layer; an extrinsic base layer vertically between the intrinsic base layer and the silicide layer; a first emitter extending through the silicide layer and the extrinsic base layer to the intrinsic base layer; a second emitter extending through the silicide layer and the extrinsic base layer to the intrinsic base layer, the first emitter and the second emitter having a first end-to-end arrangement in a first emitter finger; a third emitter and a fourth emitter having a second end-to-end arrangement in a second emitter finger; a first plurality of non-conductive spacers surrounding the first emitter and extending through the silicide layer and the extrinsic base layer to the intrinsic base layer; and a second plurality of non-conductive spacers surrounding the second emitter and extending through the silicide layer and the extrinsic base layer to the intrinsic base layer, wherein the first emitter finger and the second emitter finger are juxtaposed in a side-by-side arrangement, a first portion of the silicide layer is positioned in a gap between the first non-conductive spacers and the second non-conductive spacers, the first portion of the silicide layer directly contacts the first non-conductive spacers, and the first portion of the silicide layer directly contacts the second non-conductive spacers.