Invention Grant
- Patent Title: Selective processing with etch residue-based inhibitors
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Application No.: US15733366Application Date: 2019-01-15
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Publication No.: US11823909B2Publication Date: 2023-11-21
- Inventor: Kashish Sharma , Taeseung Kim , Samantha Tan , Dennis M. Hausmann
- Applicant: Lam Research Corporation
- Applicant Address: US CA Fremont
- Assignee: Lam Research Corporation
- Current Assignee: Lam Research Corporation
- Current Assignee Address: US CA Fremont
- Agency: Weaver Austin Villeneuve & Sampson LLP
- International Application: PCT/US2019/013640 2019.01.15
- International Announcement: WO2019/143608A 2019.07.25
- Date entered country: 2020-07-10
- Main IPC: H01L21/285
- IPC: H01L21/285 ; C23C16/04 ; C23C16/06 ; C23C16/455 ; C23C16/505 ; C23C16/52 ; H01L21/02

Abstract:
Selective deposition of a sacrificial material on a semiconductor substrate, the substrate having a surface with a plurality of regions of substrate materials having different selectivities for the sacrificial material, may be conducted such that substantial deposition of the sacrificial material occurs on a first region of the substrate surface, and no substantial deposition occurs on a second region of the substrate surface. Deposition of a non-sacrificial material may then be conducted on the substrate, such that substantial deposition of the non-sacrificial material occurs on the second region and no substantial deposition of the non-sacrificial material occurs on the first region. The sacrificial material may then be removed such that net deposition of the non-sacrificial material occurs substantially only on the second region.
Public/Granted literature
- US20210098257A1 SELECTIVE PROCESSING WITH ETCH RESIDUE-BASED INHIBITORS Public/Granted day:2021-04-01
Information query
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