Invention Grant
- Patent Title: Forming apparatus that controls chucking force
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Application No.: US16892389Application Date: 2020-06-04
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Publication No.: US11422462B2Publication Date: 2022-08-23
- Inventor: Takahiro Sato
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Roosi, Kimms & McDowell LLP
- Priority: JPJP2019-107449 20190607
- Main IPC: G03F7/00
- IPC: G03F7/00 ; H01L21/687 ; H01L21/683 ; G03F7/20 ; B29C59/02 ; B29C59/00 ; B82Y40/00

Abstract:
A forming apparatus includes a substrate holder having a plurality of chucking regions that chuck a lower surface of the substrate and configured to hold the substrate by chucking the substrate with the plurality of chucking regions, and a controller configured to control execution of a forming process and independently control a chucking force of each of the plurality of chucking regions. The controller controls a chucking force of each of the plurality of chucking regions in a mold separation step so as to make a final mold separation point, at which the mold finally separates from the composition, coincide with a center of a pattern surface of the mold.
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