| Paper Abstract and Keywords |
| Presentation |
2022-03-28 16:10
3.2 Megapixel 3D-Stacked Charge Focusing SPAD for Low-Light Imaging and Depth Sensing
Ayman Abdelghafar, Kazuhiro Morimoto, Junji Iwata, Mahito Shinohara, Hiroshi Sekine, Hiroyuki Tsuchiya, Yukihiro Kuroda, Kenzo Tojima, Wataru Endo, Yu Maehashi, Yasuharu Ota, Tomoya Sasago, Shintaro Maekawa, Shingo Hikosaka, Taikan Kanou, Aiko Kato, Tomoyuki Tezuka, Satoshi Yoshizaki, Toshiyuki Ogawa, Kosei Uehira, Alice Ehara, Fumihiro Inui, Yasushi Matsuno, Katsuhito Sakurai, Takeshi Ichikawa (Canon) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
A new generation of scalable photon counting image sensors, featuring zero read noise and 100ps temporal resolution. Newly proposed charge focusing single-photon avalanche diode (SPAD) is employed to resolve critical trade-offs in conventional SPAD pixels. A prototype 3.2 megapixel 3D-stacked backside-illuminated (BSI) image sensor with 1-inch format demonstrates the best-in-class photon detection efficiency (PDE), dark count rate (DCR) and timing jitter performance with the largest array size ever reported in avalanche photodiode (APD)-based image sensors. The proposed technology paves the way to compact and high-definition photon counting image sensors for low-light imaging and 3D time-of-flight sensing. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
SPAD image sensor / 3D-stacked / Backside-illuminated / Charge focusing SPAD / Depth sensing / PDE / / |
| Reference Info. |
ITE Tech. Rep., vol. 46, no. 14, IST2022-21, pp. 47-51, March 2022. |
| Paper # |
IST2022-21 |
| Date of Issue |
2022-03-21 (IST) |
| ISSN |
Print edition: ISSN 1342-6893 Online edition: ISSN 2424-1970 |
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