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:
Mar. 10, 2015
Filed:
Aug. 13, 2012
Applicants:
Takashi Ando, Tokyo, JP;
Ryoichi Kajiwara, Tokyo, JP;
Hiroshi Hozoji, Tokyo, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/14 (2006.01); H01L 23/48 (2006.01); H01L 23/498 (2006.01); H01L 21/60 (2006.01); H01L 23/00 (2006.01); H01L 23/373 (2006.01); H01L 23/495 (2006.01);
U.S. Cl.
CPC ...
H01L 23/49866 (2013.01); H01L 24/34 (2013.01); H01L 24/73 (2013.01); H01L 23/142 (2013.01); H01L 23/3735 (2013.01); H01L 23/3736 (2013.01); H01L 23/49537 (2013.01); H01L 23/49562 (2013.01); H01L 23/49582 (2013.01); H01L 23/49575 (2013.01); H01L 23/49579 (2013.01); H01L 23/49811 (2013.01); H01L 2224/32225 (2013.01); H01L 2224/48227 (2013.01); H01L 2224/73265 (2013.01); H01L 2224/45124 (2013.01); H01L 2224/48091 (2013.01); H01L 2924/13055 (2013.01); H01L 2224/73221 (2013.01); H01L 2224/8384 (2013.01); H01L 2224/40137 (2013.01); H01L 2224/40139 (2013.01); H01L 2224/40227 (2013.01);
Abstract
There is provided a wiring material including a core layer made of metal and a clad layer made of metal and a fiber in which the core layer is copper or an alloy containing copper and the clad layer is formed of copper or the alloy containing copper and the fiber having a thermal expansion coefficient lower than that of copper, the wiring material having a stacked structure in which at least one surface of the core layer is closely adhered to the clad layer, and the fiber in the clad layer is arranged so as to be parallel to the surface of the core layer.