WORKSHOP PAPER
Over 2 Million Frames per Second 128×128 Macropixel 3D-Stacked Burst SPAD-Based Image Sensor
Yuanyuan Hua1, Maciej Wojtkiewicz1, Francescopaolo Mattioli Della Rocca1,2, Ahmet T Erdogan1, Lars Fisher1, Robert K Henderson1
1The University of Edinburgh, Edinburgh, United Kingdom
2Sony EUTDC, Trento, Italy

Abstract

Ultra high-speed imaging enables the detailed recording of fast phenomena with extremely short exposure times. Readout noise becomes significant in conventional image sensors due to limited photon numbers. We present a zero-readout-noise 2.18 Mfps SPAD-based burst imager with 128×128 macropixels and applying 3D-stacked technology for high efficiency. Experimental results confirm solely photon-shot-noise-limited performance, reduced dark noise at higher framerates, and successful capture of transient events.
Year: 2025
Workshop: IISW
URL: https://doi.org/10.60928/2ufd-gyya
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Keywords

ultra high-speed imaging, image sensors, photon shot noise, SPAD-based imaging, CMOS image sensors, readout noise, dark noise, high-speed imaging, photon-starved conditions, single-photon avalanche diode (SPAD) sensors, digital operation, zero readout noise, photon-shot-noise-limited performance, 3D-stacked technology, burst imager, macropixel array, capturing transient events,

References

[1]) P. W. W. Fuller, "An introduction to high speed photography and photonics", The Imaging Science Journal, 2009. https://doi.org/10.1179/136821909x12490326247524
[2]) K. D. Stefanov, "CMOS image sensors", IOP Publishing, 2022. https://doi.org/10.1088/978-0-7503-3235-4
[3]) S. Shigetoshi, R. Kuroda, T. Takeda, F. Shao, K. Miyauchi et al., "A 20 Mfps global shutter CMOS image sensor with improved sensitivity and power consumption", Proceedings of the 2015 International Image Sensor Workshop, 2015. https://doi.org/10.3169/mta.4.149
[4]) , "TMX 7510", https://www.phantomhighspeed.com/products/cameras/tmx/7510
[5]) D. V. Blerkom, L. Truong, J. Rysinski, R. Corlan, K. Venkatesan et al., "A 1Mpixel, 80k fps global shutter CMOS image sensor for high speed imaging", Proceedings of the 2021 International Image Sensor Workshop, 2021
[6]) F. M. D. Rocca, E. J. Sie, A. T. Erdogan, L. Fisher, A. B. Matheson et al., "A 512× 512 SPAD laser speckle autocorrelation imager in stacked 65/40nm CMOS", 2024 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits), 2024. https://doi.org/10.1109/vlsitechnologyandcir46783.2024.10631557
[7]) A. Gorman, N. Finlayson, A. Erdogan, L. Fisher, Y. Wang et al., "ATLAS: a large array, on-chip compute SPAD camera for multispeckle diffuse correlation spectroscopy", Biomedical Optics Express, 2024. https://doi.org/10.1364/BOE.15.006499
[8]) S. Manabu, R. Kuroda, S. Sugawa, "Over 100 Million Frames per Second 368 Frames Global Shutter Burst CMOS Image Sensor with In-pixel Trench Capacitor Memory Array", Proceedings of the 2019 International Image Sensor Workshop, 2019. https://doi.org/10.3390/s20041086
[9]) V. Dao, N. Ngo, A. Q. Nguyen, K. Morimoto, K. Shimonomura et al., "An image signal accumulation multi-collection-gate image sensor operating at 25 Mfps with 32× 32 pixels and 1220 in-pixel frame memory", Sensors, 2018. https://doi.org/10.3390/s18093112