Invention Grant
- Patent Title: Passivating silicide-based approaches for conductive via fabrication and structures resulting therefrom
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Application No.: US16604681Application Date: 2017-06-20
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Publication No.: US11239112B2Publication Date: 2022-02-01
- Inventor: Manish Chandhok , Sudipto Naskar , Richard E. Schenker
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Schwabe, Williamson & Wyatt, P.C.
- International Application: PCT/US2017/038380 WO 20170620
- International Announcement: WO2018/236355 WO 20181227
- Main IPC: H01L21/768
- IPC: H01L21/768 ; H01L23/522 ; H01L23/528 ; H01L23/532

Abstract:
Passivating silicide-based approaches for conductive via fabrication is described. In an example, an integrated circuit structure includes a plurality of conductive lines in an inter-layer dielectric (ILD) layer above a substrate. Each of the plurality of conductive lines is recessed relative to an uppermost surface of the ILD layer. A metal silicide layer is on the plurality of conductive lines, in recess regions above each of the plurality of conductive lines. A hardmask layer is on the metal silicide layer and on the uppermost surface of the ILD layer. A conductive via is in an opening in the hardmask layer and on a portion of the metal silicide layer on one of the plurality of conductive lines.
Public/Granted literature
- US20200090987A1 PASSIVATING SILICIDE-BASED APPROACHES FOR CONDUCTIVE VIA FABRICATION AND STRUCTURES RESULTING THEREFROM Public/Granted day:2020-03-19
Information query
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