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:
Jun. 19, 2007
Filed:
Dec. 17, 2003
Applicant:
Daisuke Inomata, Tokyo, JP;
Inventor:
Daisuke Inomata, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/544 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device includes a substrate which has a main surface and an alignment mark which is formed on the main surface and which has a pattern, wherein the pattern in a plane view has a shape that is obtained by eliminating corners from a polygon.