US 4,783,594 A · Reticular detector array

Abstract

A detector assembly for reception of infrared radiation is formed as a composite structure of a detector array electrically connected by a set of contacts to a readout clip disposed on a backside of the assembly opposite a front side receiving incident radiation. Individual detectors are formed of layers of P-type and N-type semiconductor material, and are spaced apart from each other and from the readout chip by resilient electrically-insulating polymeric material which supports the detectors in their respective positions while allowing for thermally induced displacement of the detectors from their respective positions. A metallic grid on the front surface of the assembly provides a common electrical connection of the detectors to the readout chip. An antireflective coating may also be placed on the front surface of the assembly.

Claims19

Dependent claims

A radiation detector assembly comprising:

an array of detectors disposed in spaced-apart relation along a front side of said assembly for receiving radiation incident on a front side of said detector array;
a readout chip spaced apart from a back side of said detector array;
a resilient electrically insulating support disposed as a layer between said array and said chip, and extending forward as a set of walls between detectors to a front side of said array;
a plurality of electrical contacts extending through said support from individual ones of said detectors to said chip;
and
an electrically conductive grid disposed on a front surface of said array for conducting signals between said detectors and said chip, arms of the grid overlaying said support walls and extending over edge portions of said detectors to make electrical contact therewith, resilience of said support permitting a thermally induced displacement of the detectors relative to each other.

3 more elements

Dependencies are inferred from the claim text.

Reticular detector array

Life of this patent

Reticular detector array

Life of this patent

Abstract

Claims19