Patent ID: 8741506

Claim:
A repairing method for a mask, the method comprising steps of: providing a drillable member, a mask, a mask template, a print board and a photoresist layer, wherein the mask comprises a to-be-shaded area, the mask template comprises a configuration pattern, the shape of the configuration pattern is the same as the shape of a mask pattern of the mask before forming the to-be-shaded area; selecting a reference area in the configuration pattern of the mask template, the reference area being corresponding to the to-be-shaded area of the mask; forming a printed area on the print board according to the selected reference area of the mask template, a pattern shape of the printed area being the same as that of the reference area, and the printed area having the same proportion as the mask pattern of mask; attaching the print board to the drillable member, and imprinting the printed area onto the drillable member to form a repair area on the drillable member, and a pattern of the repair area having the same proportion as the mask pattern of the mask; forming a hollow area by hollowing the repair area of the drillable member, wherein the hollow area is corresponding to the to-be-shaded area of the mask; attaching the drillable member having the hollow area onto the mask, wherein the hollow area is corresponding to the to-be-shaded area; coating a shading material onto the drillable member having the hollow area, so as to form a shaded layer on the to-be-shaded layer; and exposing a photoresist layer by the mask having the shaded layer, and developing the photoresist layer; and checking if the photoresist layer corresponding to the shaded layer is etched; if the photoresist layer corresponding to the shaded layer is etched, returning to repair the mask.