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. 12, 2013
Filed:
Jan. 04, 2010
Applicant:
Hideaki Yamaji, Kyoto, JP;
Inventor:
Hideaki Yamaji, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A marking method is provided for putting markings on the surface of a packaged semiconductor device. The semiconductor device includes a semiconductor chip and a resin package for covering the semiconductor chip. The method includes the steps of forming a groove in the obverse surface of the resin package, and filling the groove with a resin that is visually distinguishable from the resin package.