Device level vacuum packaged micromachined infrared detectors on flexible substrates Aamer Mahmood Donald P. Butler Zeynep Çelik-Butler Microsensors Laboratory Department of Electrical Engineering University of Texas at Arlington, Arlington, TX 76019
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Device level vacuum packaged micromachined infrared detectors on flexible substrates Aamer Mahmood Donald P. Butler Zeynep Çelik-Butler Microsensors Laboratory.
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Microsensors Laboratory Department of Electrical Engineering
University of Texas at Arlington,Arlington, TX 76019
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Outline
Microbolometers Flexible substrates
Device level vacuum packaging Design and fabrication
Characterization Future work
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Bolometers Bolometers are thermal detectors YBCO is used as the detector material Change in temperature induces a change in the detector
resistance
η = absorptivity, β = TCR, = angular frequency of incident radiation, τ = detector thermal time constant, ΔΦ = the magnitude of the incident flux fluctuation, Geff = thermal conductivity
21221 /
eff )τω(G
βIRηΔV
21221 /
eff )τω(RG
βVηΔI
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Sensors on flexible substrates
PI 5878G (liquid Kapton) is used as the flexible substrate