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:
May. 24, 2005
Filed:
Aug. 01, 2003
Applicants:
Joji Fujimori, Kawasaki, JP;
Ichiro Yamaguchi, Kawasaki, JP;
Inventors:
Joji Fujimori, Kawasaki, JP;
Ichiro Yamaguchi, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L021/60 ;
U.S. Cl.
CPC ...
Abstract
A method of forming a solder ball includes the steps of forming an electrode pad on a substrate, forming an insulating layer having a first opening at a position of the electrode pad, filling the first opening with solder paste that include solder and first resin, and applying a heating process to the solder paste so as to form a solder ball on the electrode pad and to form a cured resin member of the first resin across a border between the electrode pad and the substrate.