FORMATION OF CONDUCTOR PATTERN

PURPOSE:Not only to eliminate a stencil but also to dispense with the drying of conductive paint by a method wherein a heat transfer film base material coated with a conductive film is made to bear on a wiring board and the conductive film is transferred to a wiring board by heating it from the rear of the heat transfer film base material. CONSTITUTION:A heat transfer film 5, which is composed of a base material 52 of paper or film coated with a conductive film 51 whose main component is conductive powder and hot-melt resin or heat softening resin, is made to bear on a film-like or a plate like wiring board 3, the conductive film 51 is heated from the rear of the heat transfer film 5 to be transferred to the wiring board 3. Therefore, the same as a heat transfer printer, a conductive paint can be transferred onto a wiring board to form a conductor pattern by directly inputting the data from a computer. By this setup, not only a stench but also the drying of a conductive paint can be dispensed with.