Operating temperature hybridizing for focal plane arrays

Details Operating temperature hybridizing for focal plane arrays Operating temperature hybridizing for focal plane arrays

G - Physics

01

J

340/155.2

G01J 1/02 (2006.01) F42B 15/01 (2006.01) H01H 61/01 (2006.01) H01R 4/01 (2006.01)

Patent

CA 2017742

OPERATING TEMPERATURE HYBRIDIZING FOR FOCAL PLANE ARRAYS ABSTRACT OF THE DISCLOSURE A detector array assembly which provides for the closing at operating temperature of normally open contacts between individual sensor contact mesas and readout pads of the respective detector and readout chips comprising a detector array assembly. One or more shape memory separator elements are used in conjunction with one or more biasing springs to control the spacing of the contacts. The force of the biasing spring becomes the dominant force as the apparatus is cooled down to near operating temperature, thus moving the chips closer together and establishing reliable electrical connection between the opposed sets of contacts. At temperatures near and above the normal operating temperature of 77 degrees K., the shape memory separator element provides the dominant force and drives the chips apart to open the contacts.

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