Sensor/support system having a stabilization structure affixed to a side of a platform oppositely disposed from a sensor assembly

US6417514B1 · kind B1 · utility

Assignee

• Raytheon Company · US

Inventors

• Arthur A. Eneim · Goleta, US
• Adam M. Kennedy · Lompoc, US
• Monesh S. Patel · Goleta, US
• Farhad Mirbod · Lompoc, US
• Janine F. Lambe · Goleta, US
• Kenneth L. McAllister · Goleta, US
• Stephen R. Gibbs · Escondido, US

Key dates

• Filing date: Feb 10, 2000
• Grant date: Jul 9, 2002
• Expiry date: Feb 10, 2020

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10F77/60

Abstract

A sensor/support system includes a sensor assembly having a planar radiation detector lying parallel to a reference plane, a readout circuit, and an interconnect joining the radiation detector to the readout circuit. The system further includes a support structure, the support structure having a platform with a first side to which the sensor assembly is affixed and a second side oppositely disposed from the first side. A shim is affixed to the second side of the platform. The shim is made of a shim material different from the detector material and the platform material. The shim reduces the strain in the interconnect when the temperature of the sensor/support system is changed, as compared with the strain in the interconnect in the absence of the stabilization structure. The shim is selected such that an in-plane strain in the interconnect, measured parallel to the reference plane, during a required thermal excursion is less than a maximum strain difference over the thermal excursion for the interconnect material in low-cycle fatigue for a design number of cycles evaluated over the required thermal excursion.