Patent ID: 8575550
Filing Date: 2013-11-05
Classification: G01J,H01L

Abstract:
1. A device for detecting thermal radiation, comprising: a substrate; a protective housing attached to the substrate and formed of an electrically conductive material, said protective housing having a top side facing away from said substrate, said top side having an opening therein; a stack mounted on the substrate within the protective housing, said stack comprising at least one detector substrate with at least one thermal detector element thereon that transduces thermal radiation into an electrical signal, at least one circuit substrate with at least one readout circuit that reads out the electrical signal, and at least one cover that covers the detector element; said detector substrate being arranged between the circuit substrate and the cover; said detector substrate and said cover being arranged on one another in such a way that at least one first stack cavity of the stack that is defined by the detector substrate and the cover, exists between the detector element of the detector substrate and the cover; said circuit substrate and said detector substrate being arranged such that at least one second stack cavity of the stack, that is defined by the circuit substrate and the detector substrate, exists between the detector substrate and the circuit substrate; at least one of said first stack cavity and said second stack cavity being evacuated; and said stack comprising a stack top side facing away from the substrate, said stack top side engaging said opening to make said stack top side accessible from an exterior of the protective housing, wherein the at least one detector substrate and the at least one cover have substantially identical cross-sectional areas.