BIPOLAR JUNCTION TRANSISTOR EXHIBITING SUPPRESSED KIRK EFFECT

摘要

A bipolar junction transistor (BJT) which exhibits a suppressed Kirk Effect comprises a lightly-doped n-type collector region (11) formed above a more heavily-doped n+ layer (12). Directly above the collector is a p-type base which has an extrinsic region (17) disposed laterally about an intrinsic region (18). An n+ emitter (20) is positioned directly above the intrinsic base region. The BJT also includes a localized n+ region (15) disposed directly beneath the intrinsic base region which significantly increases the current handling capabilities of the transistor.