Patent ID: 7705425
Filing Date: 2010-04-27
Classification: H01L

Abstract:
1. A transistor comprising: a collector; a base, at least a portion of the base disposed on a portion of the collector; an emitter; and a first plurality of emitter subcells extending from the emitter, the first plurality of emitter subcells formed on a first portion of the base, an emitter subcell including an emitter finger; wherein the first plurality of emitter subcells are arranged to extend generally parallel to each other and to form a first arc-shaped row; wherein the first plurality of emitter subcells includes a first emitter subcell, a second emitter subcell, and a third emitter subcell, wherein the first emitter subcell is closer to a center of the first arc-shaped row than either of the second emitter subcell and the third emitter subcell, and further wherein the third emitter subcell is farther from the center of the first arc-shaped row than either of the first emitter subcell and the second emitter subcell, wherein a first distance between the first emitter subcell and the second emitter subcell is greater than a second distance between the second emitter subcell and the third emitter subcell.