METHOD AND DEVICE FOR REPRODUCTION

摘要

PURPOSE:To increase the capacity of reproduction and to reduce the cost thereof by using a semiconductor having an electric memory effect as one electrode and impressing the voltage which does not exceed the threshold voltage between said electrode and a probe electrode making a pair therewith thereby executing the reproduction of memory. CONSTITUTION:A recording medium 1 having a recording layer 101 consisting of chalcogenide glass is placed on an X-Y stage 114 and the voltage is impressed between the substrate electrode 103 and the probe electrode 102. Current is then monitored and the fine adjustment by fine adjustment control mechanism 107 is executed by adjusting the distance between the electrode 102 and the surface of the layer 101. The stage 114 is then moved at specified interval and the writing recording is executed by impressing the square pulse voltage above the threshold voltage between the electrodes. The reproduction of the recording is executed by impressing the voltage which does not exceed the threshold voltage between the electrode 102 and the electrode 103 and reading the change in the quantity of the current flowing in the electrode 102. the capacity of the reproduction is thereby increased and the cost thereof is reduced.