Gate contact with vertical isolation from source-drain

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United States of America Patent

PATENT NO 9147576
SERIAL NO

14161724

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Abstract

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A method of forming a semiconductor structure includes forming a gate structure having a first conductive material above a semiconductor substrate, gate spacers on opposing sides of the first conductive material, and a first interlevel dielectric (ILD) layer surrounding the gate spacers and the first conductive material. An upper portion of the first conductive material is recessed. The gate spacers are recessed until a height of the gate spacers is less than a height of the gate structure. An isolation liner is deposited above the gate spacers and the first conductive material. A portion of the isolation liner is removed so that a top surface of the first conductive material is exposed. A second conductive material is deposited in a contact hole created above the first conductive material and the gate spacers to form a gate contact.

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Patent Owner(s)

  • GLOBALFOUNDRIES INC.;INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Horak, David V Essex Junction, US 328 7690
Ponoth, Shom S Los Angeles, US 18 239
Pranatharthiharan, Balasubramanian Watervliet, US 224 1251
Xie, Ruilong Schenectady, US 1408 10665

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