FinFET device having a high germanium content fin structure and method of making same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9431514
APP PUB NO 20160181395A1
SERIAL NO

14577316

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Abstract

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A fin of silicon-germanium material is formed and covered with an epitaxially grown layer of silicon material. A dummy transistor gate is then formed to extend over a channel of the fin. Sidewall spacers are formed on each side of the dummy transistor gate and directly on top of the expitaxial silicon layer. Epitaxially grown raised source and drain regions are formed on each side of the dummy transistor gate adjacent the sidewall spacers. The dummy transistor gate and a portion of the epitaxial silicon layer (underneath said dummy transistor gate) are removed and replaced by a metal gate.

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Patent Owner(s)

Patent OwnerAddress
INTERNATIONAL BUSINESS MACHINES CORPORATIONNEW ORCHARD ROAD ARMONK NY 10504
STMICROELECTRONICS INC750 CANYON DRIVE SUITE 300 COPPELL TX 75019

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Doris, Bruce Slingerlands, US 49 988
Karve, Gauri Fishkill, US 73 204
Liu, Qing Watervliet, US 483 5038

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