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:
Sep. 04, 2007
Filed:
Sep. 14, 2005
Applicants:
Masaki Sanada, Nagano, JP;
Masao Nakazawa, Nagano, JP;
Kei Imafuji, Nagano, JP;
Inventors:
Assignee:
Shinko Electric Industries Co., Ltd., Nagano-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 1/18 (2006.01); B05D 3/10 (2006.01); C23C 18/18 (2006.01); C23C 18/32 (2006.01); C23C 18/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a non-cyanide electroless gold plating solution free from a cyanide compound, comprising, as a completing agent of gold, a compound represented by the formula shown below or a salt thereof:X—(CH)—SHwherein n is 2 or 3 and X is SOH or NH, and having a pH value of 7 or less. The invention also provides a process for electroless gold plating using the non-cyanide electroless gold plating solution.