| 摘要 |
PURPOSE:To have both the functions as conventional photoresist and a protecting film by mixing conductive powder in the photoresist. CONSTITUTION:A conductive photoresist 5 mixed with carbon powder or metal powder such as of nickel by a roll coater method or a dip method is applied on a metal foil 2. A wiring circuit in which a conductive photoresist 8 is solidified is formed by irradiating light through a mask from the upper part of the resist 5 to develop. Metal foil 7 protected by the resist 8 solidified by performing etching is left and the metal foil 7 of the part without the resist 8 is eliminated. The solidified resist 8 becomes a protecting film as it is. |
