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:
Dec. 30, 2025
Filed:
Oct. 29, 2020
Applicant:
Showa Denko Materials Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09J 7/38 (2018.01); B32B 25/08 (2006.01); B32B 25/14 (2006.01); B32B 27/08 (2006.01); B32B 27/28 (2006.01); B32B 27/38 (2006.01); B32B 37/00 (2006.01); B32B 37/26 (2006.01); C09J 7/29 (2018.01); H01L 21/56 (2006.01); H01L 21/683 (2006.01);
U.S. Cl.
CPC ...
C09J 7/385 (2018.01); B32B 25/08 (2013.01); B32B 25/14 (2013.01); B32B 27/08 (2013.01); B32B 27/281 (2013.01); B32B 27/38 (2013.01); B32B 37/025 (2013.01); B32B 37/26 (2013.01); C09J 7/29 (2018.01); H01L 21/568 (2013.01); H01L 21/6836 (2013.01); B32B 2307/308 (2013.01); B32B 2307/748 (2013.01); B32B 2405/00 (2013.01); B32B 2457/14 (2013.01); C09J 2463/006 (2013.01); C09J 2475/006 (2013.01); C09J 2479/086 (2013.01);
Abstract
A substrate-conveying support tape includes: a support film; a primer layer provided on the support film; and a temporary fixing material layer provided on the primer layer, in which the support film is a polyimide film, the temporary fixing material layer contains a thermoplastic resin, and the primer layer contains at least one selected from the group consisting of a silane coupling agent having an epoxy group or a ureido group, an epoxy resin, a polyurethane rubber, and an acrylic rubber having an acid value of 5 mgKOH/g or more.