the present invention involves forming wiring sections on a substrate capable of uv - ray transmission , and fixing a component to be electrically connected to the wiring sections onto the substrate using a uv - curable acf . when doing so , fluidity in the uv - curable acf is produced by applying pressure to the component , and uv rays are directly projected from the surface of the substrate even onto the uv - curable acf areas shielded by the wiring sections . the uv - curable acf is made to be fluid by applying pressure to the component after increasing fluidity of the uv - curable acf by heating .