Invention Grant
- Patent Title: Transistor with improved self-aligned contact
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Application No.: US16173761Application Date: 2018-10-29
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Publication No.: US10998229B2Publication Date: 2021-05-04
- Inventor: Kangguo Cheng , Zhenxing Bi , Juntao Li , Dexin Kong
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Amin, Turocy & Watson, LLP
- Main IPC: H01L29/417
- IPC: H01L29/417 ; H01L29/423 ; H01L29/66 ; H01L21/768 ; H01L21/8234 ; H01L21/311

Abstract:
Systems, methods, and devices facilitating a transistor with an improved self-aligned contact are provided. In one example, a method comprises depositing a dielectric layer onto a first gate region and a second gate region of a semiconductor device, wherein the first gate region and the second gate region are separated by a substrate contact region, and wherein the dielectric layer has a first etch sensitivity to an inter-layer dielectric; and depositing a sacrificial layer onto the dielectric layer, wherein the sacrificial layer has a second etch sensitivity to the inter-layer dielectric that is greater than the first etch sensitivity.
Public/Granted literature
- US3142450A Apparatus for winding strands on elongated members Public/Granted day:1964-07-28
Information query
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