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:
Jan. 06, 2009
Filed:
Feb. 03, 2004
Applicants:
Atsushi Yamaguchi, Osaka, JP;
Kazuto Nishida, Osaka, JP;
Masato Hirano, Osaka, JP;
Inventors:
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/01 (2006.01);
U.S. Cl.
CPC ...
Abstract
It is possible to prevent deterioration of a soldering portion and improve strength of thermal fatigue resistance by providing barrier metal layers on at least one of lead and land to cover parent materials comprising Cu-containing materials, feeding a soldering material between the lead and the land and allowing to contact in a fused condition with barrier metal layers and solidify, and thus soldering together the lead and the land.