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Active area is a part of a sensor which contains the transistors, resistors and capacitors, which and perform the actual computing detection and storage operations-- the "action area.". Dark current is a small current which flows through the sensor because of the random generation of the disordered location of electrons and holes in the depletion region.
Moreover, it is necessary to notice the operation characteristics to avoid the breakage of the sensor. Operating voltage and temperature, as well as storage temperature are crucial (Figure 5, Figure 6).
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