Solid-state imaging device
A solid-state imaging device and pixel technology, which is applied in the fields of electric solid-state devices, radiation control devices, image communication, etc., can solve the problems of signal-to-noise ratio deterioration and signal volume reduction.
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no. 1 approach
[0037] figure 1 It is a block diagram showing a schematic configuration of the solid-state imaging device of the first embodiment.
[0038] exist figure 1 Among them, the solid-state imaging device is provided with: a pixel array unit 1, in which pixels PC storing charges obtained by photoelectric conversion are arranged in a matrix along the row direction RD and column direction CD; The pixel PC of the read object; the column ADC circuit 3, which uses CDS to detect the signal component of each pixel PC; the horizontal scanning circuit 4, which scans the pixel PC of the read object along the horizontal direction; the timing control circuit 5, which controls the readout of each pixel PC or accumulation timing; and the reference voltage generation circuit 6 outputs the reference voltage VREF to the column ADC circuit 3 . Furthermore, the timing control circuit 5 is input with a master clock MCK.
[0039] In addition, in the pixel array section 1, a horizontal control line Hli...
no. 2 approach
[0081] Figure 12 It is a plan view showing a layout example of photodiodes, floating diffusion regions, and gate electrodes of the solid-state imaging device according to the second embodiment.
[0082] exist Figure 5 In the configuration shown in , the photodiodes PD-R and PD-B are arranged so as to overlap in the depth direction across two pixels.
[0083] while in Figure 12 Here, photodiodes PD-R and PD-B are provided individually for each pixel. Here, the photodiodes PD-R and PD-B can be alternately arranged for each pixel.
no. 3 approach
[0085] Figure 13 It is a plan view showing a layout example of photodiodes, floating diffusion regions, and gate electrodes of the solid-state imaging device according to the third embodiment.
[0086] exist Figure 12 In the configuration shown in , the floating diffusion FD is shared between two adjacent pixels in the oblique direction.
[0087] On the other hand, in Figure 13 In this case, the floating diffusion region FD is shared between two adjacent pixels along the column direction CD.
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Abstract
Description
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Application Information
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