Patent ID: 7285305

Claim:
A method of manufacturing an electric device, comprising: discharging a plurality of first droplets from an inkjet head onto a surface; drying the plurality of first droplets to form a wiring pattern on the surface; discharging a plurality of second droplets from the inkjet head onto the wiring pattern without using a mask; drying the plurality of second droplets to form a second applied film on the wiring pattern; depositing a plurality of third droplets from the inkjet head onto the second applied film without using a mask; drying the plurality of third droplets to form a third applied film on the second applied film to form a post pattern on the wiring pattern, the post pattern including the second and the third applied films; heating the wiring pattern and the post pattern at the same heating process to change the wiring pattern into a conductive wiring and to change the post pattern into a conductive post; applying a liquid insulating material on the conductive wiring; heating the liquid insulating material to form an insulating film on the conductive wiring, at least a part of the conductive post protruding from the insulating film; and forming a conductive film on the insulating film, the conductive film insulated from the conductive wiring by the insulating film, the conductive film contacting at least a part of the conductive post.