Patent ID: 8748325

Claim:
A method of manufacturing a semiconductor device, comprising: disposing a substrate within a reaction chamber; and forming a polyimide film on a surface of the substrate located with the reaction chamber; wherein the forming the polyimide film comprises: supplying both a diamine monomer dissolved within a carbon dioxide in a supercritical state and a tetracarboxylic acid dianhydride monomer dissolved within a carbon dioxide in a supercritical state through individual supply lines to a portion adjacent to the substrate; mixing both the above-mentioned diamine monomer and tetracarboxylic acid dianhydride monomer together in the vicinity of the substrate; and reacting, on the surface of the substrate, the diamine monomer and the tetracarboxylic acid dianhydride monomer reached to the surface of the substrate in the supercritical states, along with a polyamic acid resulting from a reaction of the diamine monomer with the tetracarboxylic acid dianhydride monomer, to form the polyimide film on the surface of the substrate.