Adaptive capacitors can be widely used in various pixel structures to achieve high DR imaging. Based on the 55 nm CMOS process platform, the research on an adaptive capacitor to improve the DR is carried out in a 12,288 × 12,288 ultra-large array infrared image sensor chip.
Adaptive Capacitor Design Due to the restrictive trade-off between FWC and noise for a high-dynamic infrared image sensor, an adaptive capacitor with a larger capacitance value in high light and a smaller capacitance value in low light will meet the needs of the high-dynamic infrared image sensor.
To study the real effect of inversion MOS capacitors for high-dynamic infrared image sensors, the 55 nm 1P4M CIS process platform was used to build a 12,288 × 12,288 pixel array infrared image sensor structure based on an adaptive capacitor.
To this end, a highly dynamic pixel structure based on adaptive capacitance is proposed, so that the capacitance of the infrared image sensor can automatically change from 6.5 fF to 37.5 fF as the light intensity increases.
A sensi-tivity and linearity improvement of a 100-dB dynamic range CMOS image sensor using a lateral overflow in-tegration capacitor[J]. IEEE journal of solid-state cir-cuits, 2006, 41(4)˖851-858. LE-THAI H, XHAKONI A, GIELEN G.
CG is the ratio of the CDS signal to the number of photo-generated electrons . The CG calculation equation is (12) where 1 represents an electron. Therefore, the effect of the adaptive integration capacitor on the linearity and sensitivity of the image sensor can be investigated by using the curve of the CDS signal and CG.
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High Dynamic Pixel Structure Based on an Adaptive Integrating …
To study the real effect of inversion MOS capacitors for high-dynamic infrared image sensors, the 55 nm 1P4M CIS process platform was used to build a 12,288 × 12,288 …
High Dynamic Pixel Structure Based on an Adaptive Integrating Capacitor
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This article presents a prototype linear response single exposure CMOS image sensor with two-stage lateral overflow integration capacitors (LOFIC) exhibiting over the 120-dB dynamic range …
Image Sensors World: 2-stage LOFIC Sensor with …
"This article presents a prototype linear response single exposure CMOS image sensor with two-stage lateral overflow integration capacitors (LOFIC) exhibiting over the 120-dB dynamic range (DR) with 11.4 …
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A high dynamic range pixel using lateral overflow inte
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