Dual channel hybrid semiconductor-on-insulator semiconductor devices

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United States of America Patent

PATENT NO 9293474
APP PUB NO 20150279861A1
SERIAL NO

14739736

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Abstract

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Trenches are formed through a top semiconductor layer and a buried insulator layer of a semiconductor-on-insulator (SOI) substrate. A selective epitaxy is performed to form bulk semiconductor portions filling the trenches and in epitaxial alignment with the semiconductor material of a handle substrate. At least one dielectric layer is deposited over the top semiconductor layer and the bulk semiconductor portions, and is patterned to form openings over selected areas of the top semiconductor layer and the bulk semiconductor portions. A semiconductor alloy material is deposited within the openings directly on physically exposed surfaces of the top semiconductor layer and the bulk semiconductor portions. The semiconductor alloy material intermixes with the underlying semiconductor materials in a subsequent anneal. Within each of the SOI region and the bulk region, two types of semiconductor material portions are formed depending on whether a semiconductor material intermixes with the semiconductor alloy material.

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Patent Owner(s)

  • COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES;INTERNATIONAL BUSINESS MACHINES CORPORATION;STMICROELECTRONICS, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Kangguo Schenectady, US 3073 29791
Doris, Bruce B Brewster, US 796 13250
Grenouillet, Laurent Rives, FR 64 285
Khakifirooz, Ali Los Altos, US 842 11906
Le, Tiec Yannick Crolles, FR 23 187
Liu, Qing Guilderland, US 487 5057
Vinet, Maud Albany, US 97 1623

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