Abstract: Wires are provided on an insulating layer, reaching the source region and drain region of a MOS transistor. Each wire is composed of a conductor and a barrier layer covering the surfaces of the conductor. An insulating layer is mounted on the wires, an insulating layer on the insulating layer, and an insulating layer on the insulating layer. Cavities are provided among the wires. The cavities are filled with air or a mixture gas of oxygen and carbon dioxide. Wires are provided on the insulating layer. Cavities are provided among the wires. These cavities are filled with air or a mixture gas of oxygen and carbon dioxide.

Abstract: A coin handling device, as a first invention, comprising a cable (20), a liquid guide means (61) for guiding liquid falling via a cable guide hole (10a) into a device body (2), a liquid storing means (62) and a liquid discharging means (63). A coin handling device, as a second invention, wherein a coin selection unit (101, 201) comprising a coin guide means (181), a liquid collecting means (182) and a liquid discharging means (183) is equipped with a liquid flow-in means (184) for allowing liquid falling via the coin guide means (181) to flow into those portions of the coin selection unit (101, 201) other than the liquid sorting means (182), a liquid passing means (185) and a liquid flowout means (186, 216) for continuously feeding the passed liquid to the liquid discharging means (183).