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Small Business Innovation Research/Small Business Tech Transfer

Surface Micromachined Arrays of Transition-Edge Detectors, Phase I

Completed Technology Project
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Project Description

Surface Micromachined Arrays of Transition-Edge Detectors, Phase I
An innovative surface micromachining technique is described for the fabrication of closely-packed arrays of transition edge sensor (TES) x-ray microcalorimeters. This technique enables individual TES microcalorimeters to be suspended on a thin membrane for thermal isolation from the bath temperature. The TES detectors are fabricated from normal metal/superconductor bilayers with a transition temperature of around 0.1 K. The proposed surface micromachining technique will simplify the fabrication of closely-packed TES microcalorimeter arrays, which are needed for numerous applications in astronomical x-ray spectroscopy. More »

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