Patent ID: 9221072
Filing Date: 2015-12-29
Classification: B05C,C23C,H01L

Abstract:
1. A mask for deposition comprising: a deposition material passing portion comprising at least one opening column having a plurality of openings arranged along a first direction; and a frame portion adjacent the deposition material passing portion and having a first side and an opposite second side, the first side facing a source portion configured to provide a deposition material to a substrate, wherein, each of the openings is defined by a first slope and a second slope facing each other along the first direction and inclining in a direction from the second side of the frame portion toward the first side of the frame portion, and a third slope and a fourth slope facing each other along a second direction crossing the first direction, wherein an inclined angle of the first slope of one of the openings at a central area of the at least one opening column is different from an inclined angle of the first slope of an other one of the openings at an outer area of the at least one opening column, and wherein the inclined angle of the first slope is different from an inclined angle of the second slope in at least some of the openings.