Patent ID: 11891688
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H | IPC C

Claim 0:
1. A mask comprising:
a protruding portion provided with a deposition hole formed therethrough, the protruding portion comprising:
an upper surface,
a lower surface facing the upper surface,
a side surface disposed between the upper surface and the lower surface and inclined at an angle with respect to the lower surface, and
at least one of a protrusion protruded from the side surface of the protruding portion and a groove formed by removing at least a portion of the protruding portion from the side surface protruding portion; and

a peripheral portion, the peripheral portion comprising:
a first surface extending from the upper surface of the protruding portion, and
a second surface facing the first surface and having a step difference with respect to the lower surface of the protruding portion; and

a coating layer disposed on the protruding portion, the coating layer covering at least one of the protrusion and the groove.