A semiconductor device has: a signal pad; a power supply line; a ground line; an inductor section whose one end is connected to the signal pad; a terminating resistor connected between the other end of the inductor section and the power supply line or the ground line. One method comprises forming a first structure and a second structure. The USB connector will not be disassembled when it suffers from the external force. The angle of the sharpening stone corresponds to correct angle for a sharpened edge on a rotary blade disposed on a hand held rotary cutter, which is inserted into the channel.