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:
Jun. 10, 2003
Filed:
Nov. 08, 2001
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 3/102 ; B23K 1/20 ;
U.S. Cl.
CPC ...
B23K 3/102 ; B23K 1/20 ;
Abstract
The present invention relates to a method for producing a tin-silver alloy plating film having an excellent wettability and improved in solderability and said method comprises a step of heat treating the surface of the tin-silver alloy plating film preferably the heat treating temperature is 70-210° C.