Random access solid-state image sensor with non-destructive read-out

US3988619A · kind A · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Shashi D. Malaviya · Hopewell Junction, US
• Madhukar B. Vora · Los Gatos, US
• William Wilson · Tonawanda, US

Key dates

• Filing date: Dec 27, 1974
• Grant date: Oct 26, 1976
• Expiry date: Dec 27, 1994

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10F30/28

Abstract

A solid state analog image sensor is disclosed in which the video input to the sensor is stored as a charge on a floating gate in a cell. The cell itself consists of a single J-FET with Schottky barrier contact to the metal word line. All associated address and drive/sense circuits are located around the active cell area. By filling up the active area with only the J-FET's and relegating the rest of the circuitry to the peripheral, inactive region, high picture resolution is obtained.