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:
Dec. 17, 2013
Filed:
Dec. 24, 2010
Junichi Chiyonaga, Tokyo-to, JP;
Hiromichi Takatsu, Tokyo-to, JP;
Yoichi Miura, Tokyo-to, JP;
Yoichi Nagai, Tokyo-to, JP;
Junichi Chiyonaga, Tokyo-to, JP;
Hiromichi Takatsu, Tokyo-to, JP;
Yoichi Miura, Tokyo-to, JP;
Yoichi Nagai, Tokyo-to, JP;
Dai Nippon Printing Co., Ltd., Tokyo-to, JP;
Abstract
The problem of the present invention is to provide a circuit board comprising a shape retention unit capable of thinning while maintaining mechanical strength. The present invention solves the above-mentioned problem by providing a circuit board comprising a metal supporting substrate, a first insulating layer formed on the above-mentioned metal supporting substrate, and a wiring layer formed on the above-mentioned first insulating layer, wherein an open area is formed in the above-mentioned metal supporting substrate, and the circuit board comprises a shape retention unit having a second insulating layer contacting with the above-mentioned metal supporting substrate and a reinforcing layer formed on the above-mentioned second insulating layer, and bridging the above-mentioned metal supporting substrate divided by the above-mentioned open area.