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:
Sep. 03, 2024
Filed:
Sep. 29, 2021
Applicant:
Phichem Corporation, Shanghai, CN;
Inventors:
Assignee:
PhiChem Corporation, Shanghai, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09J 171/00 (2006.01); C09J 5/00 (2006.01); C09J 163/00 (2006.01); C09J 169/00 (2006.01); H01L 21/56 (2006.01); H01L 21/683 (2006.01);
U.S. Cl.
CPC ...
C09J 171/00 (2013.01); C09J 5/00 (2013.01); C09J 163/00 (2013.01); C09J 169/00 (2013.01); H01L 21/568 (2013.01); H01L 21/6835 (2013.01);
Abstract
A temporary adhesive includes: a polar resin of 5 wt % to 50 wt %, a first solvent of 30 wt % to 90 wt %, and a second solvent of 5 wt % to 60 wt %, wherein the polar resin includes at least one selected from a group consisting of a phenoxy resin, a poly(ether-ether-ketone) resin, a polycarbonate resin, a modified epoxy resin, or a polyolefin resin with a modified polar group; the first solvent is used to dissolve the polar resin; and the second solvent is used to improve a leveling property of the temporary adhesive.