In forming a conduction film in a semiconductor device, after an uneven natural oxide film on a silicon film has been once removed, an even and clean silicon oxide film is formed by an oxidizing chemical solution treatment. A user profile may be generated using received login and profile information. When it is identified that the accessory device supports 1-wire communication via the identification pin, the accessory device is accessed via the 1-wire communication via the identification pin. The shifter mechanism is also operable for displacing the track member on the surface relative to the substructure when the lifting assemblies have been retracted and disengaged from the track member. The inner member guides the first surface of the first sheet and the first surface of the second sheet.