- Patent Title: Method for removing re-sputtered material from patterned sidewalls
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Application No.: US17110194Application Date: 2020-12-02
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Publication No.: US11615960B2Publication Date: 2023-03-28
- Inventor: David G. Lishan , Kyle Dorsey , Vincent J. Genova
- Applicant: Cornell University
- Applicant Address: US NY Ithaca
- Assignee: Cornell University
- Current Assignee: Cornell University
- Current Assignee Address: US NY Ithaca
- Agency: Burr & Forman LLP
- Agent Harvey S. Kauget
- Main IPC: H01L21/00
- IPC: H01L21/00 ; H01L21/263 ; C23C14/35 ; H01L21/02 ; H01L21/3213

Abstract:
The present invention provides a method for removing re-sputtered material on a substrate. A process chamber having a plasma source and a substrate support is provided along with the substrate having an upper surface and a lower surface. A masking material having a patterned sidewall is patterned onto the upper surface of the substrate along with a sacrificial layer between the upper surface of the substrate and the masking material. The lower surface of the substrate is placed onto the substrate support. A plasma is generated using the plasma source. The substrate is processed on the substrate support using the generated plasma. The sacrificial layer is removed after the processing of the substrate.
Public/Granted literature
- US20210193466A1 METHOD FOR REMOVING RE-SPUTTERED MATERIAL FROM PATTERNED SIDEWALLS Public/Granted day:2021-06-24
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