Patent ID: 11887998
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A manufacturing method comprising:
disposing a target substrate on a stage inside a chamber;
moving the stage; and
irradiating a laser beam onto a surface of the target substrate,
wherein the stage includes:
an upper surface on which the target substrate is mounted;
a lower surface opposite to the upper surface;
a first side surface extending between the upper surface and the lower surface in a first direction; and
a second side surface extending between the upper surface and the lower surface in a second direction perpendicular to the first direction, wherein

the first side surface is in a round shape, and at least a portion of the first side surface is convex toward an outside of the stage, the round shape of the first side surface causing a downward airflow along the upper surface through the first side surface to below the stage using the Coanda effect.