Patent ID: 6280276
Filing Date: 2001-08-28
Classification: H01J

Abstract:
A method of attaching a tension mask to a frame to achieve differing tensions at a plurality of locations across said mask, said frame having two opposite sides between which said mask is to be attached, comprisingapplying specific forces from each of a plurality of separate actuators at positions along each of said two opposite sides of said frame that affect the mask tensions respectively at said plurality of locations across said mask, said actuators being individually controlled to apply differing specific forces to said frame sides that are directly related to the desired mask tensions required at particular mask location locations,attaching the mask to said two opposite sides, andreleasing said specific forces applied to the two opposite sides of said frame,whereby a mask tension distribution is achieved that is related to the actuator force distribution, and that is largely insensitive to frame structure and geometry.