Accession Number : ADP006651

Title :   D. C. Leakage Currents in Ferroelectric Memories,

Corporate Author : COLORADO UNIV AT BOULDER

Personal Author(s) : Scott, J. F. ; Melnick, B. M. ; Araujo, C. A. ; McMillan, L. D.

Report Date : 05 APR 1991

Pagination or Media Count : 10

Abstract : Experimental data on d.c. leakage currents in lead zirconate titanate thin films (210 nm) are presented. The data show a flat, ohmic response up to a threshold of approximately 2.0 V, above which they satisfy a modified Child's Law, with a perfectly quadratic dependence: I = aV2. This suggests that at 5 V operation the film behaves as a fully depleted device. The difficulty in distinguishing between Frenkel-Poole, Schottky emission and true space-charge limited currents is briefly discussed.

Descriptors :   *FERROELECTRIC MATERIALS, *LEAKAGE(ELECTRICAL), EMISSION, EXPERIMENTAL DATA, OPERATION, RESPONSE, SPACE CHARGE, TITANATES, LEAD TITANATES, THIN FILMS, SCHOTTKY BARRIER DEVICES.

Subject Categories : Electricity and Magnetism
      Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE