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:
Aug. 03, 2004
Filed:
Jun. 21, 2002
Applicant:
Inventors:
Assignee:
Samsung Electronics Co., Ltd., Suwon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 2/600 ;
U.S. Cl.
CPC ...
B23K 2/600 ;
Abstract
A method and apparatus for multiple-cutting a substrate into a plurality of pieces with a single irradiation of a laser beam are disclosed. At least two light reflectivity/transmittance control plates are placed on a path through which the light passes such that light reflectivity/transmittance is varied depending on an angle between the generated light and the plates. Plural surface portions of the substrate are heated simultaneously and are then cooled by a sprayed coolant so that the substrate is cut into a plurality of pieces simultaneously. Resultantly, a cutting time is substantially shortened and the productivity is enhanced.