CMOS solid-state image pickup device and drive method thereof

CMOS solid-state image pickup device and drive method thereof

  • CN 1,751,501 B
  • Filed: 02/18/2004
  • Issued: 05/29/2013
  • Est. Priority Date: 02/19/2003
  • Status: Active Grant
First Claim
Patent Images

1. CMOS solid state image pickup device, comprise:

  • pixel portion, comprise according to the amount of received light carry out opto-electronic conversion light receiving part and corresponding to described light receiving part setting read transistor, reset transistor and amplifier transistor, describedly read the transmission grid that transistor has the electric charge that obtains for the opto-electronic conversion of reading by described light receiving part;

    And be arranged on transistor in the periphery of described pixel portion, it is characterized in that;

    By voltage is provided individually, the voltage that is applied to described transmission grid is set to such an extent that be higher than the voltage that is applied to periphery transistor, described periphery transistor comprises the transistor and the amplifier transistor that is arranged in the described pixel portion in the periphery that is arranged on described pixel portionWherein want large corresponding to the Thickness Ratio of the gate insulating film of described transmission grid corresponding to the thickness of the gate insulating film of described periphery transistor.

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