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IMAGING DEVICE INCLUDING UNIT PIXEL CELL

  • US 20160190188A1
  • Filed: 12/17/2015
  • Published: 06/30/2016
  • Est. Priority Date: 12/26/2014
  • Status: Active Grant
First Claim
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1. An imaging device comprising:

  • a unit pixel cell comprising;

    a photoelectric converter that generates an electric signal through photoelectric conversion of incident light, the photoelectric converter comprising a first electrode, a second electrode, and a photoelectric conversion film that is located between the first electrode and the second electrode, the first electrode being located on a light receiving side of the photoelectric conversion film,a signal detection circuit that detects the electric signal, the signal detection circuit comprising a first transistor a gate of which is connected to the second electrode and a second transistor one of a source and a drain of which is connected to the second electrode, the first transistor amplifying the electric signal, anda capacitor circuit comprising a first capacitor having a first capacitance value and a second capacitor having a second capacitance value larger than the first capacitance value, the first capacitor and the second capacitor being serially connected to each other, the capacitor circuit being provided between the second electrode and a reference voltage; and

    a feedback circuit comprising the first transistor and an inverting amplifier, the feedback circuit negatively feeding back the electric signal to the other of the source and the drain of the second transistor via the first transistor and the inverting amplifier.

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