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

Claim 14:
15. 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 having regions of different thickness and arranged above the semiconductor substrate, the less doped layer including at least a thin region and a thick region that is deeper than the thin region;
a semiconductor base layer of a second conductivity type above at least a portion of the less doped layer; and
an emitter layer of the first conductivity type above at least a portion of the base layer disposed above the thick region of the less doped layer, but not above a portion of the base layer disposed above the thin region of the less doped layer, wherein the thickness of the emitter layer is greater than the thickness of the portion of the base layer disposed above the thin region of the less doped layer.