Bolometric detector, device for detecting infrared radiation using such a detector and method for producing this detector
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United States of America Patent
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Jul 29, 2008
Grant Date -
Sep 21, 2006
app pub date -
Feb 28, 2006
filing date -
Mar 16, 2005
priority date (Note) -
Expired
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Abstract
A bolometric detector for electromagnetic radiation comprising a sensitive part or membrane comprising one or more layers of a sensitive material, the resistivity of which varies with temperature; first electric conductor elements in electrical continuity with a readout circuit associated with the bolometric detector and acting as electrodes for the detector and being in contact with the sensitive material and acting as an electromagnetic radiation absorber; second electric conductor elements at a floating potential acting only as an electromagnetic radiation absorber; at least one support area for the sensitive part fulfilling the function of positioning the sensitive part and electric conductor in relation to the readout circuit; at least one thermal isolation structure electrically and mechanically linking each support area to the sensitive part. The conductor elements are distributed as two crossed, superimposed networks of conductive tracks, the first of the two networks comprising all the first conductor elements.
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