Invention Grant
- Patent Title: Contacting source and drain of a transistor device
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Application No.: US15641927Application Date: 2017-07-05
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Publication No.: US10468300B2Publication Date: 2019-11-05
- Inventor: Ruilong Xie , Andre Labonte , Lars Liebmann , Daniel Chanemougame , Chanro Park , Nigel Cave , Vimal Kamineni
- Applicant: GLOBALFOUNDRIES Inc.
- Applicant Address: KY Grand Cayman
- Assignee: GLOBALFOUNDRIES Inc.
- Current Assignee: GLOBALFOUNDRIES Inc.
- Current Assignee Address: KY Grand Cayman
- Agency: Amerson Law Firm, PLLC
- Main IPC: H01L21/768
- IPC: H01L21/768 ; H01L21/8234 ; H01L21/285 ; H01L21/311 ; H01L27/088 ; H01L29/08 ; H01L23/535 ; H01L29/06

Abstract:
A method of manufacturing a semiconductor device is provided including forming raised source and drain regions on a semiconductor layer, forming a first insulating layer over the semiconductor layer, forming a first contact to one of the source and drain regions in the first insulating layer, forming a second insulating layer over the first contact, forming a trench in the second insulating layer to expose the first contact, removing a portion of the first contact below the trench, thereby forming a recessed surface of the first contact, removing a portion of the first insulating layer, thereby forming a recess in the trench and exposing a portion of a sidewall of the first contact below the recessed surface of the first contact, and filling the trench and the recess formed in the trench with a contact material to form a second contact in contact with the first contact.
Public/Granted literature
- US20190013241A1 CONTACTING SOURCE AND DRAIN OF A TRANSISTOR DEVICE Public/Granted day:2019-01-10
Information query
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