Patent ID: 11950489
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 6:
7. A method of manufacturing a deposition mask for a display panel, the method comprising:
preparing a base having a thickness of about 50 micrometers to about 200 micrometers;
reducing the thickness of the base by wet-etching at least one surface of the base to form a thickness-reduced section; and
forming a plurality of openings by irradiating, with a laser, a portion of the thickness-reduced section,
wherein
the base has an upper surface and a lower surface facing the upper surface,
the step of reducing the thickness of the base comprises wet-etching both the upper surface and the lower surface, and
the step of forming the plurality of openings comprises irradiating the upper surface with the laser.