Patent ID: 8779327
Filing Date: 2014-07-15
Classification: B23K,C03B,Y02P,Y10T

Abstract:
1. A laser scribe processing method performed using a light source that emits a laser beam, and an optical system for irradiation that leads the laser beam onto a processing target substance, the method comprising: an emission step of emitting the laser beam from the light source; a splitting step of splitting the laser beam into an ordinary light component and an extraordinary light component having different travel directions; a light converging step of converging the ordinary light component and the extraordinary light component to form one or multiple pairs of beam spots; and an irradiation step of intermittently irradiating with the laser beam having one or multiple pairs of beam spots in a scribe direction of the processing target substance to form one or more cracks along a straight line that connects paired beam spots.