Wrap around silicide for FinFETs

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United States of America Patent

PATENT NO 9876108
SERIAL NO

15221123

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method includes forming a gate stack on a middle portion of s semiconductor fin, and forming a first gate spacer on a sidewall of the gate stack. After the first gate spacer is formed, a template dielectric region is formed to cover the semiconductor fin. The method further includes recessing the template dielectric region. After the recessing, a second gate spacer is formed on the sidewall of the gate stack. The end portion of the semiconductor fin is etched to form a recess in the template dielectric region. A source/drain region is epitaxially grown in the recess.

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Patent Owner(s)

Patent OwnerAddress
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD8 LI-HSIN RD 6 HSINCHU SCIENCE PARK HSINCHU 300-78

International Classification(s)

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  • 2016 Application Filing Year
  • H01L Class
  • 27971 Applications Filed
  • 23507 Patents Issued To-Date
  • 84.05 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20162017201820192020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ching, Kuo-Cheng Zhubei, TW 374 8264
Leung, Ying-Keung Hsin-Chu, TW 97 2682
Liu, Chi-Wen Hsin-Chu, TW 285 7442

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Patent Citation Ranking

  • 3 Citation Count
  • H01L Class
  • 23.71 % this patent is cited more than
  • 7 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges3689997611243481558461392216162801 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +05001000150020002500300035004000450050005500600065007000750080008500900095001000010500

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