公开(公告)号：US11826852B2

公开(公告)日：2023-11-28

申请号：US17088704

申请日：2020-11-04

Applicant: Gigaphoton Inc.

Inventor： Akira Suwa ,  Osamu Wakabayashi ,  Masashi Shimbori ,  Masakazu Kobayashi

IPC: B23K26/14 ,  B23K26/12

CPC classification number: B23K26/1462 ,  B23K26/126

Abstract: A laser processing apparatus according to the present disclosure includes a placement base on which a processing receiving object is placed, an optical system that guides laser light to the processing receiving object, a gas supply port via which a gas is supplied to a laser light irradiated region of the processing receiving object, a gas recovery port via which the supplied gas is recovered, a mover that moves the irradiated region, and a controller that controls, in accordance with the moving direction of the irradiated region, the direction of the flow of the gas flowing from the gas supply port to the gas recovery port, and the controller changes the direction of the gas flow in response to a change in the moving direction of the irradiated region in such a way that the gas flows in the direction opposite the moving direction of the irradiated region.

公开(公告)号：US12076815B2

公开(公告)日：2024-09-03

申请号：US17307252

申请日：2021-05-04

Applicant: Gigaphoton Inc.

Inventor： Masashi Shimbori ,  Osamu Wakabayashi

IPC: B23K26/073 ,  B23K26/06 ,  B23K26/0622 ,  B23K26/066 ,  B23K26/082

CPC classification number: B23K26/073 ,  B23K26/0622 ,  B23K26/0648 ,  B23K26/066 ,  B23K26/082

Abstract: A laser processing apparatus includes a placement base on which a workpiece is placed, a beam shaping optical system that shapes laser light such that a first laser light irradiated region of a mask blocking part of the laser light has a rectangular shape having short edges and long edges, the beam shaping optical system capable of causing one of a first radiation width of the first irradiated region in the direction parallel to the short edges and a second radiation width of the first irradiated region in the direction parallel to the long edges to be fixed and causing the other to be changed, a projection optical system that projects a pattern on the mask onto the workpiece, and a mover that moves the first irradiated region at least in the direction parallel to the short edges to move a second laser light irradiated region of the workpiece.