Patent ID: 6617629
Filing Date: 2003-09-09
Classification: G11C

Abstract:
An optically readable ferroelectric memory cell, comprising:(a) a first translucent conductive layer; (b) a side of a translucent ferroelectric layer, that is electrically writable into either an optically unpolarized state or optically polarized state, in parallel contact with the first translucent conductive layer; (c) a second translucent conductive layer in parallel contact with a second side of the translucent ferroelectric layer; (d) a first translucent insulator layer in parallel contact with a second side of the second translucent conductive layer; (e) a side of a planar polarizer in parallel contact with a second side of the first translucent insulator layer; (f) a second translucent insulator layer in parallel contact with a second side of the planar polarizer; and (g) a sensing diode region within a surface of a semiconductor substrate, the sensing diode region in parallel contact with a second side of the second translucent insulator layer.