A method for wafer transfer includes forming a spreading layer, including graphene, on a single crystalline SiC substrate. Hubs that connect the hood sections together and mount the hood to the base also define passages for the animal in and out of habitat and provide access to other habitat components. Since the output electric potential LV is applied to a P-type semiconductor substrate, an electric potential of the P-type semiconductor substrate becomes \u2212VDD. The touch detection circuit processes the capacitance values to make a hovering detection and a touching detection with respect to the display.