Patent ID: 11964342
Assignee: JSW AKTINA SYSTEM CO., LTD
Field: Machine tools (Mechanical engineering)
Classification: CPC B  H | IPC B  H

Claim 0:
1. A laser processing apparatus comprising:
a stage having a front surface and a back surface on an opposite side of the front surface, and being capable of levitating and transporting a substrate by jetting gas from the front surface;
a laser oscillator configured to irradiate a laser beam onto the substrate; and
a gas jetting port arranged above the stage and at a position overlapping a focus point position of the laser beam in plan view, and being configured to jet inert gas,
wherein the front surface of the stage is constituted by a first upper structure and a second upper structure,
the first upper structure and the second upper structure are arranged so as to be spaced apart from each other and face each other,
a gap between the first upper structure and the second upper structure overlaps the focus point position of the laser beam in plan view, and
a filling member is arranged so as to fill the gap between the first upper structure and the second upper structure.