Invention Grant
- Patent Title: Substrate holder and a method of manufacturing a device
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Application No.: US16758917Application Date: 2018-10-11
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Publication No.: US11086234B2Publication Date: 2021-08-10
- Inventor: Thomas Poiesz , Satish Achanta , Jeroen Bouwknegt , Abraham Alexander Soethoudt
- 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: EP17200605 20171108
- International Application: PCT/EP2018/077740 WO 20181011
- International Announcement: WO2019/191694 WO 20190516
- Main IPC: G03B27/58
- IPC: G03B27/58 ; G03F7/20

Abstract:
A substrate holder, a method of manufacturing of the substrate holder and a lithographic apparatus having the substrate holder. In one arrangement, a substrate holder is for use in a lithographic apparatus. The substrate holder is configured to support a lower surface of a substrate. The substrate holder has a main body, a plurality of burls and a coating. The main body has a substrate-facing face. The plurality of burls protrudes from the substrate-facing face. Each burl has a distal end configured to engage with the substrate. The distal ends are configured for supporting the substrate. The coating is on the substrate-facing face between the burls. Between the burls the substrate-facing face has an arrangement of areas. Adjacent areas are separated by a step-change in distance below the support plane. Each step-change is greater than a thickness of the coating.
Public/Granted literature
- US20200292947A1 SUBSTRATE HOLDER AND A METHOD OF MANUFACTURING A DEVICE Public/Granted day:2020-09-17
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