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:
Nov. 25, 2003
Filed:
Jun. 07, 1999
Applicant:
Inventors:
Hiroshi Fukumoto, Kyoto, JP;
Tokihiko Kishimoto, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01C 7/100 ;
U.S. Cl.
CPC ...
H01C 7/100 ;
Abstract
The scribe line is constituted by a large number of depressed portions of desired depth formed by radiation of a laser beam in a surface of the raw substrate corresponding to a boundary line between adjacent insulating substrates so that the depressed portions are arranged in a line at fixed pitch intervals along the boundary line, and a portion where the pitch intervals of the depressed portions are reduced is provided over a desired length on the way of the scribe line, or a portion where the depth of the depressed portions is increased is provided over a desired length on the way of each of the scribe lines.