Storage device utilizing e.b.i.c.

Claim 1

AN ELECTRON DISCHARGE DEVICE COMPRISING A TARGET ELECTRODE INCLUDING AN ELECTRICALLY CONDUCTIVE LAYER, A FIRST LAYER OF MATERIAL DEPOSITED ONE SURFACE OF SAID CONDUCTIVE LAYER AND HAVING THE PROPERTY OF ELECTRON BOMBARDMENT INDUCED CONDUCTIVITY AND CATHODOLUMINESCENCE, A SECOND LAYER OF MATERIAL DEPOSITED ON SAID FIRST LAYER AND EXHIBITING THE PROPERTY OF ELECTRON BOMBARDMENT INDUCED CONDUCTIVITY AND PHOTOCONDUCTIVITY, SAID SECOND LAYER RESPONSIVE TO THE LIGHT EMISSION FROM SAID FIRST LAYER, A THIRD LAYER OF MATERIAL EXHIBITING THE PROPERTY OF ELECTRON BOMBARDMENT INDUCED CONDUCTIVITY AND TRANSMISSION SECONDARY EMISSION WHEREIN ELECTRONS ENTERING ONE SURFACE GENERATE SECONDARY ELECTRONS FROM THE OPPOSITE SURFACE, MEANS FOR DIRECTING A WRITING ELECTRON BEAM HAVING ELECTRONS OF PREDETERMINED ENERGY AT SAID TARGET TO PENETRATE SAID CONDUCTIVE LAYER SAID FIRST, SECOND AND THIRD LAYERS TO ESTABLISH A POSITIVE CHARGE PATTERN CORRESPONDING TO THE ENERGY OF SAID WRITING BEAM FROM AN EQUILIBRIUM CHARGE, MEANS FOR ESTABLISHING A FIELD ACROSS SAID FIRST, SECOND AND THIRD LAYERS TO ESTABLISH A CONDUCTION THEREIN DUE TO ELECTRON BOMBARDMENT INDUCED CONDUCTIVITY OF SAID FIRST, SECOND AND THIRD LAYERS AND DUE TO PHOTOCONDUCTIVITY IN SAID SECOND LAYER AND MEANS FOR COLLECTING THE SECONDARY ELECTRONS EMITTED FROM SAID THIRD LAYER FOR CHARGING THE EXPOSED SURFACE IN A POSITIVE DIRECTION AND MEANS FOR DIRECTING ELECTRONS AT SAID EXPOSED SURFACE OF SAID THIRD LAYER TO RESTORE SAID THIRD FILM SURFACE TO SAID EQUILBRIUM CHARGE.