A method of mounting a deposition mask (12) onto a flexible frame (14) for use in vacuum deposition of material through a pealable deposition mask in forming an OLED, including the steps of providing a plate (38) with the pealable deposition mask formed thereon; providing the flexible frame having border portions (10), such border portions defining a frame opening which corresponds to border portions on the pealable deposition mask; aligning and then securing the border portions of the flexible frame to the border portions of the pealable deposition mask and removing the flexible frame and secured pealable deposition mask from the plate; and mounting the flexible frame with the pealable deposition mask in a carrier (26) which maintains planarity of the pealable deposition mask during subsequent vacuum deposition of material.
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