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:
Feb. 15, 2022
Filed:
Apr. 19, 2018
Applicant:
Tanaka Denshi Kogyo K.k., Saga-ken, JP;
Inventors:
Assignee:
TANAKA DENSHI KOGYO K.K., Saga-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/00 (2006.01); H01L 23/495 (2006.01);
U.S. Cl.
CPC ...
H01L 24/45 (2013.01); H01L 23/4952 (2013.01); H01L 24/05 (2013.01); H01L 24/11 (2013.01); H01L 24/13 (2013.01); H01L 24/43 (2013.01); H01L 2224/48105 (2013.01); H01L 2924/01013 (2013.01); H01L 2924/01029 (2013.01); H01L 2924/01046 (2013.01); H01L 2924/01047 (2013.01); H01L 2924/01079 (2013.01);
Abstract
A noble metal-coated silver bonding wire for ball bonding wire includes a noble metal coating layer on a core material made of pure silver or a silver alloy, wherein the wire contains at least one sulfur group element, the noble metal coating layer includes at least one palladium layer, the total palladium content relative to the entire wire is not less than 0.01 mass % and not more than 5.0 mass %, and the total sulfur group element content relative to the entire wire is not less than 0.1 mass ppm and not more than 100 mass ppm.