| 摘要 |
<p>PURPOSE:To prevent the crosstalk at the time of reading out and to allow the non-destructive reproducing of data by stopping the impression of the voltage before the inversion polarization area generated by the impression of a reading out voltage grows and identifying the polarity of residual polarization from the value of the currents flowing in 1st and 2nd band-shaped electrodes. CONSTITUTION:The voltage is impressed to the 1st band-shaped electrodes 17, 18 positioned above and below the ferroelectric film formed with the residual polarization. The voltage impression is stopped before the inversion polarization formed in the ferroelectric film by the voltage impression grows to the size at which the polarization remains in the film even after the impressed voltage is removed. The currents flowing in the 1st and 2nd band-shaped electrodes 17, 18 are subjected to current-voltage conversion by an amplifier 24, by which the currents are amplified. The amplified currents are inputted to a comparator circuit 26 which discriminates the polarity of the recorded residual polarization, by which the binary data is reproduced. The loss of the data by the crosstalk at the time of reading out is prevented in this way and the non-destructive reading out of the recorded data is executed.</p> |
