An object of the present invention is to eliminate fluctuation in the value of the constant current I even if there is characteristic fluctuation in field effect transistors and at the same time, to improve the power consumption. The method includes forming a contact hole in a dielectric material formed on a substrate. An exhaust pipe in a siphon shape is connected to the exhaust manifold, a water jacket is attached so as to annularly cover an outer side of a front half portion of the siphon shape, and seawater is directly supplied into the water jacket to flow therein. Further, the wireless module may be provided to any number of peripheral devices compatible with the Memory Stick\u2122 removable data storage media. The fastener connects an outer skin of an aircraft to a structural member positioned inside this outer skin, and is provided with a dielectric layer arranged to cover one end surface of a head section, and a conductive layer arranged to cover one end surface of this dielectric layer.