An electrophotographic recording medium including a substrate and formed on the substrate at least one image receiving layer has a thermoplastic resin, the image receiving layer containing at least one kind of unsaturated fatty acid or an unsaturated fatty acid derivative having a melting point of from about 40\xb0 C. In the fabrication method, isotropic etching and anisotropic etching are performed on a cutting portion of a semiconductor wafer to form grooves in the semiconductor wafer. The splitter splits an input signal into an \u2018N\u2019 number of power signals.