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:
Oct. 08, 2013
Filed:
Jan. 06, 2009
Katsumi Kikuchi, Tokyo, JP;
Shintaro Yamamichi, Tokyo, JP;
Masaya Kawano, Kanagawa, JP;
Kouji Soejima, Kanagawa, JP;
Yoichiro Kurita, Kanagawa, JP;
Katsumi Kikuchi, Tokyo, JP;
Shintaro Yamamichi, Tokyo, JP;
Masaya Kawano, Kanagawa, JP;
Kouji Soejima, Kanagawa, JP;
Yoichiro Kurita, Kanagawa, JP;
Renesas Electronics Corporation, Kanagawa, JP;
Abstract
In the wiring board, insulating layers and wiring layers are alternately laminated, and the wiring layers are electrically connected by the vias. The wiring board includes first terminals arranged in a first surface and embedded in an insulating layer, second terminals arranged in a second surface opposite to the first surface and embedded in an insulating layer, and lands arranged in an insulating layer and in contact with the first terminals. The vias electrically connect the lands and the wiring layers laminated alternately with the insulating layers. No connecting interface is formed at an end of each of the vias on the land side but a connecting interface is formed at an end of each of the vias on the wiring layer side.