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. 06, 2011
Filed:
Oct. 30, 2008
Applicant:
Toru Nakai, Gifu, JP;
Inventor:
Toru Nakai, Gifu, JP;
Assignee:
Ibiden Co., Ltd., Ogaki-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/09 (2006.01);
U.S. Cl.
CPC ...
Abstract
A printed wiring board including solder pads excellent in frequency characteristic is provided. To do so, each solder padis formed by providing a single tin layeron a conductor circuitor a via. Therefore, a signal propagation rate can be increased, as compared with a printed wiring board of the prior art on which two metal layers are formed. In addition, due to lack of nickel layers, manufacturing cost can be decreased and electric characteristics can be enhanced.