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.

Date of Patent:
Feb. 01, 2022

Filed:

Aug. 28, 2019
Applicant:

Research & Business Foundation Sungkyunkwan University, Suwon-si, KR;

Inventors:

Tae Il Kim, Pyeongtaek-si, KR;

Ju Seung Lee, Suwon-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/11 (2006.01); H05K 3/32 (2006.01); C09J 11/04 (2006.01); C09J 201/00 (2006.01);
U.S. Cl.
CPC ...
H05K 3/323 (2013.01); C09J 11/04 (2013.01); C09J 201/00 (2013.01); H05K 1/11 (2013.01); C09J 2301/416 (2020.08); C09J 2400/143 (2013.01); C09J 2400/16 (2013.01); H05K 2201/023 (2013.01); H05K 2201/10636 (2013.01); H05K 2203/0278 (2013.01);
Abstract

The present invention discloses flip-chip bonding method using an anisotropic adhesive polymer. The method includes applying an adhesive polymer solution containing metal particles dispersed therein onto a circuit substrate to form an adhesive polymer layer such that the adhesive polymer layer covers the metal particles; drying the adhesive polymer layer; and positioning an electronic element to be electrically connected to the circuit substrate on the dried adhesive polymer layer and causing dewetting of the polymer from the metal particles.


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