Patent ID: 9321074
Filing Date: 2016-04-26
CPC Classification: B05C,C23C,H01L,Y10T

Claim Text:
1. A method of manufacturing a mask frame assembly for thin film deposition, comprising: preparing a frame such that the frame includes an opening portion and a support portion; and preparing a mask such that the mask includes a first layer including a deposition area in a position corresponding to the opening portion and a peripheral portion disposed outside the deposition area, and a second layer including a welding portion, the welding portion including two pairs of opposing sides having a first surface and a second surface opposite to each other, wherein at least a part of one of the first surfaces of the second layer contacts the peripheral portion of the first layer and at least one of the second surfaces of the second layer is welded to the support portion of the frame, wherein the first layer includes welding patterns corresponding to welding points on the welding portion of the second layer where the second layer is welded to the support portion of the frame.