Patent ID: 11897056
Assignee: HAMAMATSU PHOTONICS K.K.
Field: Machine tools (Mechanical engineering)
Classification: CPC B  H  G | IPC B  G  H

Claim 3:
4. The laser processing apparatus according to claim 1, wherein
the target is a wafer that has a (100) plane as a principal plane, and includes a first crystal orientation orthogonal to one (110) plane and a second crystal orientation orthogonal to another (110) plane,
the line annularly extends in a view orthogonal to the principal plane,
the first region includes a region in which a processing angle is 0° or greater and less than 45°, the processing angle being an angle of the movement direction of the part of the focusing region with respect to the first crystal orientation, when the part of the focusing region is relatively moved along the line, and
the second region includes a region in which the processing angle is 45° or greater and less than 90°, when the part of the focusing region is relatively moved along the line.