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:
May. 21, 2013
Filed:
May. 28, 2008
Takayuki Kita, Osaka, JP;
Masaaki Katsumata, Osaka, JP;
Tadashi Nakamura, Osaka, JP;
Kota Fukasawa, Yamanashi, JP;
Kazuhiro Furugoori, Yamanashi, JP;
Takayuki Kita, Osaka, JP;
Masaaki Katsumata, Osaka, JP;
Tadashi Nakamura, Osaka, JP;
Kota Fukasawa, Yamanashi, JP;
Kazuhiro Furugoori, Yamanashi, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An upper board having an opening and forming a circuit on a surface layer, a connection sheet between boards having an opening and forming conductive holes filled with conductive paste in through-holes, and a lower board forming a circuit on a surface layer are stacked up, heated and pressed. In particular, the connection sheet between boards is made of a material different from the upper board and the lower board. A multi-layer circuit board having a cavity structure, and a full-layer IVH structure with high interlayer connection reliability can be manufactured.