An inactive gas is introduced into an organic material evaporation source to place a thin organic film material in the organic material evaporation source in an atmosphere having a relatively high pressure, and the temperature of the thin organic film material is increased up to a certain temperature. A conductive hanger knob is provided at the back of the rear case of a microphone case. The points push crowns of un-punctured polyethylene through the punctured boles in the paper. Also disclosed is a positioning device and a probe having the rotary drive mechanism. The piston is movable between a down position that seals the side port and an up position above the port.