The present invention relates to a fuel-cell device utilizing surface-migration on organic solid wherein a cathode layer and an anode layer are arranged in parallel to each other on one surface of a solid organic substrate. The semiconductor memory apparatus may also include a comparison unit configured to compare external CRC information received from outside the semiconductor memory apparatus with the internal CRC information, and generate a read training result signal. The sensor electrode and the compensation capacitance are decoupled from voltage sources and a state of charge of the sensor electrode and of the compensation capacitance is maintained.