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. 24, 2003
Filed:
Nov. 19, 2001
Applicant:
Inventor:
Ryuichi Kosugi, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/358 ; H01L 2/55544 ;
U.S. Cl.
CPC ...
H01L 2/358 ; H01L 2/55544 ;
Abstract
A silicon wafer has a plurality of chip portions and a plurality of street portions. Each of the street portions runs and spaces between neighboring chip portions. The wafer also has circuits each provided on the street portions. The circuit is reinforced by a reinforcing portion. The reinforcing portion is provided on the circuit before dicing and then cut out in part by dicing so that it remains in part on at least one end portion of the circuit, adjacent to the chip portions, after dicing.