Patent ID: 7122282

Claim:
A patterning method of a thin-film comprising the steps of: laminating a first resist layer on a base layer; exposing the first resist layer using a first pattern with a pattern of at least one via hole; developing the first resist layer exposed to remove a part of the first resist layer, said part corresponding to an area other than said at least one via hole; laminating a non-reactive layer on the base layer in said area other than said at least one via hole; laminating a second resist layer on the first resist layer and on the non-reactive layer; exposing the second resist layer using a second pattern; developing the second resist layer exposed to remove a part of the second resist layer; removing the non-reactive layer to form a mask pattern made of the first resist layer and the second resist layer; patterning the thin film using the formed mask pattern; and removing the mask pattern from the patterned thin-film.