Invention Grant
- Patent Title: Surface coating for chamber components used in plasma systems
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Application No.: US15038724Application Date: 2014-11-21
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Publication No.: US11764037B2Publication Date: 2023-09-19
- Inventor: Carlo Waldfried
- Applicant: ENTEGRIS, INC.
- Applicant Address: US MA Billerica
- Assignee: ENTEGRIS, INC.
- Current Assignee: ENTEGRIS, INC.
- Current Assignee Address: US MA Billerica
- International Application: PCT/US2014/066883 2014.11.21
- International Announcement: WO2015/077601A 2015.05.28
- Date entered country: 2016-05-23
- Main IPC: H01J37/32
- IPC: H01J37/32 ; C23C14/06 ; C23C14/35 ; C23C14/08

Abstract:
Disclosed herein are surface coatings for plasma components that have the benefit of being robust against chemical and plasma physical attack in aggressive (e.g., fluorine-based) plasma environments. The coatings also provide low plasma surface recombination rates for active oxygen, nitrogen, fluorine, and hydrogen species when compared with other known surface treatments. The coatings can be applied to any plasma system component not requiring etching or plasma cleaning including but not limited to materials like quartz, aluminum, or anodized aluminum. Additionally, the efficiency of the system is increased by applying a non-reactive coating to system components thereby increasing the flow of excited plasma species to the plasma chamber of the system.
Public/Granted literature
- US20170032942A1 SURFACE COATING FOR CHAMBER COMPONENTS USED IN PLASMA SYSTEMS Public/Granted day:2017-02-02
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