Solid-state imaging element having image signal overflow path
First Claim
1. A solid state imaging device comprising:
- a plurality of unit pixels, each of the unit pixels includinga photoelectric conversion element,a transfer transistor associated with the photoelectric conversion element and a charge store element,an amplifying transistor associated with the charge store element and a signal line, anda reset transistor associated with the charge store element,wherein a drain of the reset transistor is configured to receive a plurality of voltages from a selection line, andwherein the plurality of voltages includes a first voltage and a second voltage, the first voltage being selected during a first situation and the second voltage being selected during a second situation.
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Abstract
Since the great number of elements constituting a unit pixel having an amplification function would hinder reduction of pixel size, unit pixel n,m arranged in a matrix form is comprised of a photodiode, a transfer switch for transferring charges stored in the photodiode, a floating diffusion for storing charges transferred by the transfer switch, a reset switch for resetting the floating diffusion, and an amplifying transistor for outputting a signal in accordance with the potential of the floating diffusion to a vertical signal line, and by affording vertical selection pulse φVn to the drain of the reset switch to control a reset potential thereof, pixels are selected in units of rows.
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Citations
19 Claims
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1. A solid state imaging device comprising:
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a plurality of unit pixels, each of the unit pixels including a photoelectric conversion element, a transfer transistor associated with the photoelectric conversion element and a charge store element, an amplifying transistor associated with the charge store element and a signal line, and a reset transistor associated with the charge store element, wherein a drain of the reset transistor is configured to receive a plurality of voltages from a selection line, and wherein the plurality of voltages includes a first voltage and a second voltage, the first voltage being selected during a first situation and the second voltage being selected during a second situation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification