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:
Feb. 19, 2013
Filed:
Sep. 17, 2009
Applicants:
Chie Fujioka, Kyoto, JP;
Toshiyuki Yokoe, Osaka, JP;
Daichi Kumano, Kyoto, JP;
Inventors:
Assignee:
Panasonic Corporation, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/495 (2006.01);
U.S. Cl.
CPC ...
Abstract
By increasing the area of a source electrodeof a semiconductor elementand the area of a source terminalof a lead frame, it is possible to extend a jointof the source electrodebonded to a conductive ribbonand a jointof the source terminal. Thus it is possible to reduce an on resistance and easily reduce the number of times a bonding tool comes into contact with the joints to reduce a stress on the semiconductor element