The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2025
Filed:
Dec. 10, 2020
Applicant:
Mitsui Chemicals, Inc., Tokyo, JP;
Inventors:
Akira Ishikawa, Ichihara, JP;
Kazuo Kohmura, Chiba, JP;
Assignee:
MITSUI CHEMICALS, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 1/64 (2012.01);
U.S. Cl.
CPC ...
G03F 1/64 (2013.01);
Abstract
A pellicle demounting method includes providing a stack including a photomask, a pellicle frame, and a pellicle film that are arranged in this order, forming of a pressure-sensitive adhesive layer on the pellicle film in the stack, and a demounting step of demounting at least the pellicle film and the pressure-sensitive adhesive layer from the photomask in the stack having the pressure-sensitive adhesive layer formed thereon.