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:
Oct. 07, 2025
Filed:
Apr. 05, 2021
Applicant:
Resonac Corporation, Tokyo, JP;
Inventors:
Assignee:
RESONAC CORPORATION, TOKYO, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K 5/06 (2006.01); C09J 7/38 (2018.01); C09J 11/06 (2006.01); C09J 11/08 (2006.01); H01L 21/56 (2006.01); H01L 23/29 (2006.01); H01L 23/31 (2006.01); H01L 23/495 (2006.01); H01L 23/00 (2006.01);
U.S. Cl.
CPC ...
C09J 7/38 (2018.01); H01L 21/568 (2013.01); H01L 23/293 (2013.01); H01L 23/3107 (2013.01); H01L 23/49506 (2013.01); C09J 2203/326 (2013.01); C09J 2301/502 (2020.08); H01L 24/46 (2013.01); H01L 2924/0665 (2013.01); H01L 2924/1811 (2013.01); H01L 2924/186 (2013.01);
Abstract
A temporary protective film for semiconductor encapsulation molding includes a support film and an adhesive layer. The adhesive layer contains a thermoplastic resin and at least one compound selected from the group consisting of sorbitol polyglycidyl ether, polyethylene glycol diglycidyl ether, a glycidyl ether of an aliphatic alcohol having 10 to 20 carbon atoms, glycerol polyglycidyl ether, a polyalkylene glycol ester of a fatty acid having 2 to 30 carbon atoms, a dipentaerythritol ester of a fatty acid having 2 to 20 carbon atoms, polyethylene glycol monoalkyl ether, and polyethylene glycol dialkyl ether.