JPS57181446A - Recording system - Google Patents

Abstract

PURPOSE:To perform a lot of copied in a short time, by forming an electric charge storage pattern through the irradiation of radiant rays on an insulation film of a recording medium forming the insulation film having an electric charge storage function on a semiconductor layer. CONSTITUTION:An insulating film 2 having an electric charge storage function such as Si3N4 and Al2O3 and Ta2O5 is formed on a semiconductor layer 1 to constitute a recording medium. A mask 4 is located on the film 2 having stored charge 3. When radiant rays 5 such as ultraviolet rays, X-rays and electron beam are irradiated from the upper side of the mask 4, the charge 3 is erased. On the other hand, at a part where no radiant rays 5 are irradiated, the charges 3 remains trapped and the recording medium corresponding to the information signals is obtained at the trap of the film 2 by removing the mask 4. With this system, a lot of recording media with high density can be mass-produced in a short time.