Research/Patents/US 5144138
US 5144138

INFRARED DETECTOR AND METHOD

Assignee

TEXAS INSTRUMENTS INCORPORATED, A CORP. OF DE

Filed

Oct 6, 1989

Granted

Sep 1, 1992

Location

DALLAS TX US

Abstract

Photocapacitive detectors with varying bandgap Hg1-x Cdx Te (604) for two color detection and one color detection with increased potential well capacity. Preferred embodiments include a transparent insulated gate (608) on a top layer (632) of Hg0.8 Cd0.2 Te over a lower layer (634) of Hg0.83 Cd0.27 Te for detection of two infrared colors by varying gate potential to either confine the potential well to the top layer or to extend the potential well to both layers. Also, methods of compositionally grading the Hg1-x Cdx Te by fluid transport plus diffusion.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

May 9, 1990

Rescinded

Dec 27, 1991

Duration

1 year, 7 months

Inventor

  • 1MICHAEL A. KINCH

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records