Heterojunction bipolar transistor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11177347
APP PUB NO 20210091183A1
SERIAL NO

16830783

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Abstract

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The present disclosure relates to semiconductor structures and, more particularly, to heterojunction bipolar transistors and methods of manufacture. The structure includes a collector region composed of semiconductor material; at least one marker layer over the collector region; a layer of doped semiconductor material which forms an extrinsic base and which is located above the at least one marker layer; a cavity formed in the layer of doped semiconductor material and extending at least to the at least one marker layer; an epitaxial intrinsic base layer of doped material located within the cavity; and an emitter material over the epitaxial intrinsic base layer and within an opening formed by sidewall spacer structures.

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Patent Owner(s)

  • GLOBALFOUNDRIES U.S. INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Holt, Judson R Ballston Lake, US 168 1649
Jain, Vibhor Williston, US 188 995
Liu, Qizhi Lexington, US 213 1352
Pekarik, John J Underhill, US 97 393

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