Sub-Threshold Capfet Sensor for Sensing Analyte, A Method and System Thereof
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United States of America Patent
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Issued Date -
Feb 10, 2011
app pub date -
Jun 19, 2008
filing date -
Apr 11, 2008
priority date (Note) -
Abandoned
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Abstract
The present invention relates to high sensitivity chemical sensors, more particularly relates to high sensitivity chemical sensors which are capacitively coupled, FET based analyte sensors. A sub-threshold capacitively coupled Field Effect Transistor (CapFET) sensor for sensing an analyte comprises fixed dielectric placed on substrate of the CapFET and second dielectric sensitive to the analyte, placed between gate terminal of the CapFET and the fixed dielectric, wherein presence of the analyte alters either dielectric constant of the second dielectric or work function of the gate.
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