Patent ID: 9527160
Filing Date: 2016-12-27
CPC Classification: B23K,H01L,Y02E

Claim Text:
1. A laser machining device for use in patterning, which is configured to form a machining line in a thin-film layer formed on a workpiece by using a laser beam, the laser machining device comprising: a constant-speed feeder configured to feed the workpiece in a single feeding direction at a predetermined feeding speed; a beam head unit including a plurality of beam heads, a laser oscillator configured to emit the laser beam to irradiate each beam head with the laser beam; and a controller configured to control a scanning speed of the laser beam emitted from each beam head and the feeding speed of the workpiece in relation to each other to control the machining line formed in the workpiece fed at the predetermined feeding speed, wherein the controller is configured to switch a beam head or beam heads to use to form the machining line or machining lines among the plurality of beam heads to form the machining line alternately or the machining lines concurrently.