Invention Grant
- Patent Title: Substrate holder for use in a lithographic apparatus
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Application No.: US16650939Application Date: 2018-09-19
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Publication No.: US11139196B2Publication Date: 2021-10-05
- Inventor: Niek Jacobus Johannes Roset , Marcus Martinus Petrus Adrianus Vermeulen , Simon Karel Ravensbergen , Mark Constant Johannes Baggen , Gijs Kramer , Roger Anton Marie Timmermans , Frank Pieter Albert Van Den Berkmortel
- Applicant: ASML NETHERLANDS B.V.
- Applicant Address: NL Veldhoven
- Assignee: ASML NETHERLANDS B.V.
- Current Assignee: ASML NETHERLANDS B.V.
- Current Assignee Address: NL Veldhoven
- Agency: Pillsbury Winthrop Shaw Pittman, LLP
- Priority: EP17196086 20171012,EP18163985 20180326
- International Application: PCT/EP2018/075293 WO 20180919
- International Announcement: WO2019/072504 WO 20190418
- Main IPC: G03F7/20
- IPC: G03F7/20 ; H01L21/687

Abstract:
A substrate holder for use in a lithographic apparatus and configured to support a substrate, the substrate holder having a main body having a main body surface, a plurality of main burls projecting from the main body surface, wherein each main burl has a distal end surface configured to support the substrate, a first seal member projecting from the main body surface and having an upper surface, the first seal member surrounding the plurality of main burls and configured to restrict the passage of liquid between the substrate and the main body surface radially inward past the first seal member, and a plurality of minor burls projecting from the upper surface of the first seal member, wherein each minor burl has a distal end surface configured to support the substrate.
Public/Granted literature
- US20200294841A1 SUBSTRATE HOLDER FOR USE IN A LITHOGRAPHIC APPARATUS Public/Granted day:2020-09-17
Information query
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