Invention Grant
- Patent Title: Active gate contacts and method of fabrication thereof
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Application No.: US15962808Application Date: 2018-04-25
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Publication No.: US10347541B1Publication Date: 2019-07-09
- Inventor: Jiehui Shu , David Paul Brunco , Pei Liu , Shariq Siddiqui , Jinping Liu
- Applicant: GLOBALFOUNDRIES Inc.
- Applicant Address: KY Grand Cayman
- Assignee: GLOBALFOUNDRIES INC.
- Current Assignee: GLOBALFOUNDRIES INC.
- Current Assignee Address: KY Grand Cayman
- Agency: Ditthavong & Steiner P.C.
- Main IPC: H01L27/088
- IPC: H01L27/088 ; H01L21/8234 ; H01L29/06 ; H01L29/66 ; H01L29/08

Abstract:
A method of forming contacts over active gates is provided. Embodiments include forming first and second gate structures over a portion of a fin; forming a first and second RSD in a portion of the fin between the first gate structures and between the first and the second gate structure, respectively; forming TS structures over the first and second RSD; forming a first cap layer over the first and second gate structures or over the TS structures; forming a metal oxide liner over the substrate, trenches formed; filling the trenches with a second cap layer; forming an ILD layer over the substrate; forming a CA through a first portion of the ILD and metal oxide layer down to the TS structures over the second RSD; and forming a CB through a second portion of the ILD and metal oxide layer down to the first gate structures.
Information query
IPC分类: