Errors in closed loop transmit diversity feedback signaling may be detected andor corrected by a mobile station, according to aspects of the present invention, based on signals received from a base station. A network data store is scanned for at least one transaction. By utilizing this operation, a control circuit adjusts a current flowing through the discharge tube to light and extinguish the discharge tube. The siderail includes a first surface and a second surface. Thus, when an electric device is formed in a SiC single crystal substrate having the direction of the dislocation line of the threading dislocation, which is the 0001-orientation c-axis, a SiC semiconductor device is obtained such that device characteristics are excellent without deterioration, and a manufacturing yield ration is improved.