The invention comprises a chemical composition with the structure shown below. The multilayer thermal interface material is used in conjunction with a semiconductor device assembly of a chip carrier substrate, a heat spreader for attaching to the substrate, a semiconductor device mounted on the substrate and underneath the heat spreader and the multilayer thermal interface material interposed between the heat spreader and the semiconductor device. The ride height signal is output by a ride height sensor that detects a ride height of a vehicle. Alternatively, an oxygen or silicon dopant may be used. By transferring the rotation of the openingclosing operation of the feed tray to the holding member through the gear train so that the sheet feeding unit is moved along with the openingclosing operation of the feed tray.