Patent ID: 9327310
Filing Date: 2016-05-03
CPC Classification: B05C,C23C,H01L,Y10T

Claim Text:
1. A mask tensioning apparatus comprising: at least two clamps configured to support a mask sheet placed on a mask frame to couple the mask sheet to the mask frame, wherein the mask sheet has a length and a width less than the length, and wherein the mask sheet has i) a linear middle portion and ii) first and second ends opposing each other and extending from the middle portion at an angle; and at least two tensioners configured to apply a tensioning force to the clamps to fix the mask sheet and apply the tensioning force to the mask sheet in the length direction of the mask sheet, each tensioner connecting to each clamp, wherein the clamps are arranged in a substantially vertical or oblique direction with regard to the direction of the length of the middle portion of the mask sheet and further configured to press the mask sheet in a direction substantially parallel and then oblique to the direction of the length of the middle portion of the mask sheet so as to support the mask sheet.