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:
Jun. 03, 2014

Filed:

Sep. 11, 2013
Applicant:

Fujitsu Limited, Kawasaki, JP;

Inventors:

Seiki Sakuyama, Kawasaki, JP;

Toshiya Akamatsu, Kawasaki, JP;

Masateru Koide, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 31/02 (2006.01); H01L 29/40 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of manufacturing an electronic apparatus including a first and a second components, includes: forming a first solder bump on one of the first component and the second component; forming a second solder bump on the other one of the first component and the second component; bringing the first solder bump into contact with the second solder bump at a temperature higher than the liquidus temperature of any of the first and the second solder bumps such that the first and the second solder bumps are fused together to form a solder joint of an alloy having a lower liquidus temperature than any of the first and the second solder bumps; and solidifying the solder joint between the first and the second component.


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