| Paper Abstract and Keywords |
| Presentation |
2026-03-27 14:10
Study on 4T-DCG Scheme Large-Small Multiple-Photodiode Pixel for Small HDR CMOS Image Sensors
Shogo Masui, Shuhei Takemoto, Ai Otani (Ritsumeikan Univ.), Ken Miyauchi (Ritsumeikan/Brillnics Japan), Hideki Owada, Chia Chi Kuo, Isao Takayanagi (Brillnics Japan), Shunsuke Okura (Ritsumeikan Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Image sensors used in environments with large illuminance variations require high dynamic range (HDR). We are investigating a dual conversion gain (DCG) HDR CMOS image sensor employing a 4T pixel structure with two readouts. This paper proposes applying Multiple-PD technology, based on Macro Pixel architectures such as Quad Pixel, to extend the dynamic range. Device simulations show that an HDR of up to 102.8 dB can be achieved using photodiodes of different sizes with full well capacities of 18 ke- and 46 ke-. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
CMOS image sensor / HDR / 4T pixel structure / small area / DCG / Macro Pixel structure / / |
| Reference Info. |
ITE Tech. Rep., vol. 50, no. 14, IST2026-21, pp. 48-53, March 2026. |
| Paper # |
IST2026-21 |
| Date of Issue |
2026-03-20 (IST) |
| ISSN |
Online edition: ISSN 2424-1970 |
| Download PDF |
|
| Conference Information |
| Committee |
IST |
| Conference Date |
2026-03-27 - 2026-03-27 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
|
| Paper Information |
| Registration To |
IST |
| Conference Code |
2026-03-IST |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Study on 4T-DCG Scheme Large-Small Multiple-Photodiode Pixel for Small HDR CMOS Image Sensors |
| Sub Title (in English) |
|
| Keyword(1) |
CMOS image sensor |
| Keyword(2) |
HDR |
| Keyword(3) |
4T pixel structure |
| Keyword(4) |
small area |
| Keyword(5) |
DCG |
| Keyword(6) |
Macro Pixel structure |
| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Shogo Masui |
| 1st Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
| 2nd Author's Name |
Shuhei Takemoto |
| 2nd Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
| 3rd Author's Name |
Ai Otani |
| 3rd Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
| 4th Author's Name |
Ken Miyauchi |
| 4th Author's Affiliation |
Ritsumeikan University/Brillnics Japan Inc. (Ritsumeikan/Brillnics Japan) |
| 5th Author's Name |
Hideki Owada |
| 5th Author's Affiliation |
Brillnics Japan Inc. (Brillnics Japan) |
| 6th Author's Name |
Chia Chi Kuo |
| 6th Author's Affiliation |
Brillnics Japan Inc. (Brillnics Japan) |
| 7th Author's Name |
Isao Takayanagi |
| 7th Author's Affiliation |
Brillnics Japan Inc. (Brillnics Japan) |
| 8th Author's Name |
Shunsuke Okura |
| 8th Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2026-03-27 14:10:00 |
| Presentation Time |
15 minutes |
| Registration for |
IST |
| Paper # |
IST2026-21 |
| Volume (vol) |
vol.50 |
| Number (no) |
no.14 |
| Page |
pp.48-53 |
| #Pages |
6 |
| Date of Issue |
2026-03-20 (IST) |