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:
Jan. 09, 2001
Filed:
Jun. 04, 1999
Takashi Kuwahara, Ogaki, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A laser irradiation device generates a linear laser beam extending in one direction, which is irradiated toward the substrate,to be processed. The length Lh of the emitted linear laser beam in the major axis direction is adjusted in accordance with a size of the substrate,to be processed or the area to be processed within the substrate,. The adjustment of the length Lh is performed by altering the distance X between a pair of cylindrical lenses,and,of the optical system for adjusting the generated laser beam in the direction corresponding to the length Lh direction of the linear laser beam, in accordance with the required length Lh. The alteration of the distance X is performed by altering the position of one of the cylindrical lenses,and,within the optical path in forward and backward direction. The lens is, for example, one having more flexibility of layout in the optical system than the other.