Method and structure for dielectric isolation in a fin field effect transistor

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United States of America Patent

PATENT NO 9034715
APP PUB NO 20140264591A1
SERIAL NO

13795776

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Abstract

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A finFET and method of fabrication are disclosed. A sacrificial layer is formed on a bulk semiconductor substrate. A top semiconductor layer (such as silicon) is disposed on the sacrificial layer. The bulk semiconductor substrate is recessed in the area adjacent to the transistor gate and a stressor layer is formed in the recessed area. The sacrificial layer is selectively removed and replaced with an insulator, such as a flowable oxide. The insulator provides isolation between the transistor channel and the bulk substrate without the use of dopants.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guo, Dechao Fishkill, US 268 2433
Lu, Darsen Yorktown Heights, US 1 5
Oldiges, Philip J Lagrangeville, US 56 424
Wang, Gan Fishkill, US 65 1312
Wang, Xin Beacon, US 1343 12630
Wang, Yanfeng Fishkill, US 124 705

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