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:
Feb. 03, 2026
Filed:
Jul. 02, 2021
Applicant:
Sumitomo Chemical Co., Ltd, Tokyo, JP;
Inventors:
Martin Humphries, Godmanchester, GB;
Simon King, Godmanchester, GB;
Thomas Fletcher, Godmanchester, GB;
Antonio Attanzio, Godmanchester, GB;
Kiran Kamtekar, Godmanchester, GB;
Assignee:
Sumitomo Chemical Co., Ltd, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 23/00 (2006.01); H01L 21/56 (2006.01); H01L 25/065 (2023.01);
U.S. Cl.
CPC ...
H01L 24/29 (2013.01); H01L 21/563 (2013.01); H01L 24/16 (2013.01); H01L 24/27 (2013.01); H01L 24/32 (2013.01); H01L 24/73 (2013.01); H01L 25/0657 (2013.01); H01L 2224/16146 (2013.01); H01L 2224/16148 (2013.01); H01L 2224/16221 (2013.01); H01L 2224/27416 (2013.01); H01L 2224/27418 (2013.01); H01L 2224/27422 (2013.01); H01L 2224/2919 (2013.01); H01L 2224/32145 (2013.01); H01L 2224/32221 (2013.01); H01L 2224/73204 (2013.01); H01L 2225/06517 (2013.01); H01L 2225/06572 (2013.01); H01L 2924/152 (2013.01);
Abstract
An electrically non-conducting film () comprising an oligomer comprising an arylene or heteroarylene repeating unit is disposed between a chip (), e.g. a flip-chip, and a functional layer (), e.g. a printed circuit board, electrically connected to the chip by electrically conducting interconnects (). The oligomer may be crosslinked.