Invention Grant
- Patent Title: Replacement metal gate processes for vertical transport field-effect transistor
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Application No.: US15862930Application Date: 2018-01-05
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Publication No.: US10373912B2Publication Date: 2019-08-06
- Inventor: Choonghyun Lee , Chun Wing Yeung , Ruqiang Bao , Hemanth Jagannathan
- 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: Ryan, Mason & Lewis, LLP
- Agent Vazken Alexanian
- Main IPC: H01L21/8234
- IPC: H01L21/8234 ; H01L23/535 ; H01L29/786 ; H01L27/092 ; H01L29/66 ; H01L29/423

Abstract:
A method of forming a semiconductor structure comprises forming a plurality of fins disposed over a top surface of a substrate and forming one or more vertical transport field-effect transistors (VTFETs) from the plurality of fins using a replacement metal gate (RMG) process. A gate surrounding at least one fin of a given one of the VTFETs comprises a gate self-aligned contact (SAC) capping layer disposed over a gate contact metal layer, the gate contact metal layer being disposed adjacent an end of the at least one fin.
Public/Granted literature
- US20190214343A1 REPLACEMENT METAL GATE PROCESSES FOR VERTICAL TRANSPORT FIELD-EFFECT TRANSISTOR Public/Granted day:2019-07-11
Information query
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