The present invention relates to the production of platelet gels formed into beneficial geometric shapes. A dummy gate structure and sacrificial gate dielectric are removed to expose a portion of the substrate; a gate dielectric is formed thereon. When a curing agent obtained from the polyisocyanate compound is used in combination with a polyester polyol having 30% or greater of hydroxyl group bonded to secondary carbon atom in the entire hydroxyl group, the curing temperature is lowered and the coating film exhibits excellent gloss like solvent-based coating materials, smoothness of the surface, weatherability and mechanical properties. An energy-transferring circuit transfers a portion of the energy stored in the inductor to the power supply.