Stacked planar double-gate lamellar field-effect transistor

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United States of America Patent

PATENT NO 9391163
SERIAL NO

14505849

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Abstract

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A method of making a field-effect transistor device includes providing a substrate with a fin stack having: a first sacrificial material layer on the substrate, a first semiconductive material layer on the first sacrificial material layer, and a second sacrificial material layer on the first semiconductive material layer. The method includes inserting a dummy gate having a second thickness, a dummy void, and an outer end that is coplanar to the second face. The method includes inserting a first spacer having a first thickness and a first void, and having an outer end that is coplanar to the first face. The method includes etching the first sacrificial material layer in the second plane and the second sacrificial material layer in the fourth plane. The method includes removing, at least partially, the first spacer. The method also includes inserting a second spacer having the first thickness.

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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
Chang, Josephine B Mahopac, US 263 5080
Guillorn, Michael A Yorktown Heights, US 268 5042
Lauer, Gen P Yorktown Heights, US 44 321
Lauer, Isaac Yorktown Heights, US 218 1825
Sleight, Jeffrey W Ridgefield, US 297 5083

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