×

Image sensor

  • US 7,884,402 B2
  • Filed: 09/29/2008
  • Issued: 02/08/2011
  • Est. Priority Date: 11/06/2007
  • Status: Active Grant
First Claim
Patent Images

1. An image sensor comprising:

  • a photodiode;

    a transfer transistor for transferring charges front the photodiode to a floating diffusion region;

    a drive transistor for outputting an electric signal depending on charges accumulated in the photodiode;

    a reset transistor for resetting a voltage value of a unit pixel before charge transference of the charges accumulated in the photodiode;

    a select transistor for selecting the unit pixel from a plurality of unit pixels;

    a switching transistor connected at a node between the photodiode and the reset transistor; and

    a storage capacitor in series with the switching transistor between a side of the switching transistor and a ground,wherein a drain of switching transistor is disposed between the floating diffusion and the reset transistor.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×