Patent ID: 9517962
Filing Date: 2016-12-13
CPC Classification: B23K,B65G,C03B

Claim Text:
1. A plate-shaped object processing method forming a through hole of a desired shape in a plate-shaped object, the plate-shaped object processing method comprising: a through hole contour forming step of performing laser processing within the plate-shaped object along a contour of the through hole to be formed, by positioning, within the plate-shaped object, a focal point of a pulsed laser beam of a wavelength capable of passing through the plate-shaped object and applying the pulsed laser beam along the contour of the through hole to be formed by pulsed laser beam irradiation means including a condenser applying the laser beam; and a through hole forming step of breaking the laser-processed contour of the through hole to be formed and forming the through hole in the plate-shaped object by positioning an ultrasonic transducer of ultrasonic wave applying means in correspondence with the contour of the through hole to be formed in the plate-shaped object resulting from the through hole contour forming step and applying an ultrasonic wave.