US Government As Represented by the Secretary of the Army

John B Ramsey, Jr

John T Cox

Ferdinand C Petito

Gerald Klauber

Wellman L Clark

John E Waylonis

John H Pollard

A mercury-cadmium-telluride (HgCdTe) epitaxial detector array is formed on a cadmium telluride (CdTe) substrate. Connecting leads to the detectors are a molybdenum layer covered by a gold-germanium layer. These leads have excellent matches for the thermal coefficients of expansion of the HgCdTe and CdTe and provide ohmic contacts such that the D* of the array is greater than that of arrays made by prior processes using known lead materials, and the noise level is reduced by a factor of approximately three.

Infrared detector and method of making same

A retina is provided for a pyroelectric vidicon which is rugged, long liv and has increased resistance to contamination by normal environments encountered during testing and subsequent installation in the vidicon tube.

Retina for pyroelectric vidicon

A method of fabricating a retina and mounting it in a pyroelectric vidicon s provided wherein the pyroelectric material is polished, etched and coated with metal on one broad side and with a dielectric layer on the opposite (electron beam) side.

Growing community of inventors

Alexandria, VA, United States of America

John B Ramsey, Jr