Invention Grant
- Patent Title: Silicide formation for source/drain contact in a vertical transport field-effect transistor
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Application No.: US17458777Application Date: 2021-08-27
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Publication No.: US11621199B2Publication Date: 2023-04-04
- Inventor: Heng Wu , Su Chen Fan , Ruilong Xie , Huai Huang
- 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
- Main IPC: H01L21/8238
- IPC: H01L21/8238 ; H01L27/092 ; H01L29/08 ; H01L29/45 ; H01L29/78 ; H01L21/265 ; H01L21/324 ; H01L29/66 ; H01L21/285

Abstract:
A method for manufacturing a semiconductor device includes forming a first vertical transistor structure in a first device region on a substrate, and forming a second vertical transistor structure in a second device region on the substrate. The first vertical transistor structure includes a first plurality of fins, and the second vertical transistor structure includes a second plurality of fins. A plurality of first source/drain regions are grown from upper portions of the first plurality of fins, and a contact liner layer is formed on the first source/drain regions. The method further includes forming a plurality of first silicide portions from the contact liner layer on the first source/drain regions, and forming a plurality of second silicide portions on a plurality of second source/drain regions extending from upper portions of the second plurality of fins. The second silicide portions have a different composition than the first silicide portions.
Public/Granted literature
- US20210391224A1 SILICIDE FORMATION FOR SOURCE/DRAIN CONTACT IN A VERTICAL TRANSPORT FIELD-EFFECT TRANSISTOR Public/Granted day:2021-12-16
Information query
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