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:
Oct. 14, 2008
Filed:
Oct. 31, 2002
Applicant:
Kiyoshi Hasegawa, Tokyo, JP;
Inventor:
Kiyoshi Hasegawa, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 23/544 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device includes a first surface faced to a mounting board when the semiconductor device is placed over the mounting board and a second surface opposed to the first surface. The semiconductor device also includes a position reference portion which is provided in an area including sides of the second surface and which has an optical reflection factor different from that of the mounting board.