Patent ID: 11876144
Assignee: VISHAY SEMICONDUCTOR GMBH
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A photosensitive semiconductor component comprising
a semiconductor substrate of a first conductivity type as a collector layer;
a less doped layer of the first conductivity type arranged above the semiconductor substrate;
a semiconductor base layer of a second conductivity type having regions of different thickness above at least a part of the less doped layer, the base layer including at least a thin region and a thick region that is deeper than the thin region; and
an emitter layer of the first conductivity type above at least a part of the thick region of the base layer, but not above at least a part of the thin region of the base layer, wherein the thickness of the emitter layer is greater than the thickness of the thin region of the base layer.