Patent ID: 7049176

Claim:
A method of forming a thick-film wiring on a substrate comprising: a first step of filling a photosensitive-electroconductive paste into a pattern groove formed on the surface of a light-transmissive plate, the pattern groove corresponding to a desired thick-film wiring pattern; a second step of irradiating the photosensitive-electroconductive paste filled in the pattern groove with light-rays from the front and back sides of the plate to cause the photosensitive-electroconductive paste to harden until the peripheral surface of the electroconductive paste has a predetermined hardness; a third step of transferring the photosensitive-electroconductive paste hardened in the plate directly to the substrate or via an intermediate piece to the substrate; and a fourth step of firing the photosensitive-electroconductive paste, whereby the thick-film wiring is formed on the substrate; wherein the plate is made of a transparent polyethyleneterephthalate film.