A pixel design of a branching ultra-highspeed image sensor

Ngo, Hoai Nguyen; Shimonomura, Kazuhiro; Ando, Taeko; Shimura, Takayoshi; Watanabe, Heiji; Takehara, Kohsei; Nguyen, Anh Quang; Charbon, Edoardo; Etoh, Takeharu

doi:https://doi.org/10.3390/s21072506

A pixel design of a branching ultra-highspeed image sensor

Ngo, Hoai Nguyen; Shimonomura, Kazuhiro; Ando, Taeko et al.

Sensors, 2021, 21(7), 2506

Number of Access:553（2025-08-18 23:04 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/85493

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Title	A pixel design of a branching ultra-highspeed image sensor
Creator	CreatorName Ngo, Hoai Nguyen
	NRID 1000080397679 1000080397679 CreatorName Shimonomura, Kazuhiro
	NRID 1000070335074 1000070335074 CreatorName Ando, Taeko
	NRID 1000090252600 1000090252600 ORCID 0000-0002-8859-7010 0000-0002-8859-7010 researchmap permalink read0042803 read0042803 Scopus Author ID 35510328800 35510328800 CreatorName Shimura, Takayoshi
	NRID 1000090379115 1000090379115 ORCID 0000-0002-7916-3093 0000-0002-7916-3093 researchmap permalink heijiw heijiw Scopus Author ID 7410305922 7410305922 CreatorName Watanabe, Heiji
	NRID 1000050216933 1000050216933 CreatorName Takehara, Kohsei
	CreatorName Nguyen, Anh Quang
	CreatorName Charbon, Edoardo
	NRID 1000020088412 1000020088412 CreatorName Etoh, Takeharu
Subject	ultrahigh-speed imaging
	branching image sensor
	super-temporal resolution
Description	Ngo NH, Shimonomura K, Ando T, Shimura T, Watanabe H, Takehara K, Nguyen AQ, Charbon E, Etoh TG. A Pixel Design of a Branching Ultra-Highspeed Image Sensor. Sensors. 2021; 21(7):2506. https://doi.org/10.3390/s21072506.
Abstract	A burst image sensor named Hanabi, meaning fireworks in Japanese, includes a branching CCD and multiple CMOS readout circuits. The sensor is backside-illuminated with a light/charge guide pipe to minimize the temporal resolution by suppressing the horizontal motion of signal carriers. On the front side, the pixel has a guide gate at the center, branching to six first-branching gates, each bifurcating to second-branching gates, and finally connected to 12 (=6 × 2) floating diffusions. The signals are either read out after an image capture operation to replay 12 to 48 consecutive images, or continuously transferred to a memory chip stacked on the front side of the sensor chip and converted to digital signals. A CCD burst image sensor enables a noiseless signal transfer from a photodiode to the in-situ storage even at very high frame rates. However, the pixel count conflicts with the frame count due to the large pixel size for the relatively large in-pixel CCD memory elements. A CMOS burst image sensor can use small trench-type capacitors for memory elements, instead of CCD channels. However, the transfer noise from a floating diffusion to the memory element increases in proportion to the square root of the frame rate. The Hanabi chip overcomes the compromise between these pros and cons.
Publisher	MDPI
Source Title	Sensors
Volume (Issue)	21(7)
Page	2506
Date of Issued	2021-04-01
Language	English
Handle URL	https://hdl.handle.net/11094/85493
eISSN	14248220
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.3390/s21072506
Relation.isIdenticalTo	PMID 33916733
Access Rights	open access
CopyRight	© 2021 the authors. Licensee MDPI, Basel, Switzerland. This article is licensed under a Creative Commons Attribution 4.0 International License.
oaire:version	Version of Record
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Sensors. 2021, 21(7), p. 2506
DC.title	A pixel design of a branching ultra-highspeed image sensor
DC.creator	Ngo, Hoai Nguyen
	Shimonomura, Kazuhiro
	Ando, Taeko
	Shimura, Takayoshi
	Watanabe, Heiji
	Takehara, Kohsei
	Nguyen, Anh Quang
	Charbon, Edoardo
	Etoh, Takeharu
DC.publisher	MDPI
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2021-04-01
DC.identifier	https://doi.org/10.3390/s21072506
DC.subject	ultrahigh-speed imaging
	branching image sensor
	super-temporal resolution
DC.description	Ngo NH, Shimonomura K, Ando T, Shimura T, Watanabe H, Takehara K, Nguyen AQ, Charbon E, Etoh TG. A Pixel Design of a Branching Ultra-Highspeed Image Sensor. Sensors. 2021; 21(7):2506. https://doi.org/10.3390/s21072506.
DCTERMS.abstract	A burst image sensor named Hanabi, meaning fireworks in Japanese, includes a branching CCD and multiple CMOS readout circuits. The sensor is backside-illuminated with a light/charge guide pipe to minimize the temporal resolution by suppressing the horizontal motion of signal carriers. On the front side, the pixel has a guide gate at the center, branching to six first-branching gates, each bifurcating to second-branching gates, and finally connected to 12 (=6 × 2) floating diffusions. The signals are either read out after an image capture operation to replay 12 to 48 consecutive images, or continuously transferred to a memory chip stacked on the front side of the sensor chip and converted to digital signals. A CCD burst image sensor enables a noiseless signal transfer from a photodiode to the in-situ storage even at very high frame rates. However, the pixel count conflicts with the frame count due to the large pixel size for the relatively large in-pixel CCD memory elements. A CMOS burst image sensor can use small trench-type capacitors for memory elements, instead of CCD channels. However, the transfer noise from a floating diffusion to the memory element increases in proportion to the square root of the frame rate. The Hanabi chip overcomes the compromise between these pros and cons.
DC.rights	© 2021 the authors. Licensee MDPI, Basel, Switzerland. This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	85493
citation_title	A pixel design of a branching ultra-highspeed image sensor
citation_author	Ngo, Hoai Nguyen
	Shimonomura, Kazuhiro
	Ando, Taeko
	Shimura, Takayoshi
	Watanabe, Heiji
	Takehara, Kohsei
	Nguyen, Anh Quang
	Charbon, Edoardo
	Etoh, Takeharu
citation_publisher	MDPI
citation_language	English
citation_date	2021-04-01
citation_journal_title	Sensors
citation_volume	21
citation_issue	7
citation_firstpage	2506
citation_doi	https://doi.org/10.3390/s21072506
citation_pmid	33916733
citation_public_url	https://hdl.handle.net/11094/85493

A pixel design of a branching ultra-highspeed image sensor

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