Abstract: An improved detector dewar assembly in which the flange supporting the upper cap of the dewar assembly comprises a disc ceramic matrix, including buried electrical leads. This disc serves several purposes. First, it provides a vacuum tight electric feedthrough which connects a tape cable from the detector assembly to a pin assembly imbedded in the exterior portion of the disc feedthrough. Second, it includes metalizations on its top and lower surface in order to provide a surface for connecting (by brazing or soldering) the upper cap assembly and the major vessel wall. A tape cable comprising wires embedded in a flexible nonconductive matrix connects the detector element leadout wires with the electrical connectors of the feedthrough disc. The cable forms a collar which substantially surrounds the coldwell and has tabs at its basal portion which fold up to attach to pin or pad connectors on the lower surface of the disc.

Abstract: An integrated circuit chip carrier having miniaturized electrical input/output interconnectors, such that the area of the chip carrier may be matched or minimized with respect to the area of the integrated circuit. Such input/output interconnectors are reusable, such that the chip carrier may be easily removed and reconnected to a mother board assembly. Input/output interconnections as provided which when used allow an electro-optical integrated circuit to become in focus.

Abstract: An improved detector dewar assembly comprised primarily of metal subassemblies, which is easily assembled, and leaves the included detector assembly more readily serviceable.