Toward the Ultimate-High-Speed Image Sensor: From 10 ns to 50 ps

Autor: Anh Quang Nguyen, Vu Truong Son Dao, Kazuhiro Shimonomura, Kohsei Takehara, Takeharu Goji Etoh
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Sensors, Vol 18, Iss 8, p 2407 (2018)
Druh dokumentu: article
ISSN: 1424-8220
DOI: 10.3390/s18082407
Popis: The paper summarizes the evolution of the Backside-Illuminated Multi-Collection-Gate (BSI MCG) image sensors from the proposed fundamental structure to the development of a practical ultimate-high-speed silicon image sensor. A test chip of the BSI MCG image sensor achieves the temporal resolution of 10 ns. The authors have derived the expression of the temporal resolution limit of photoelectron conversion layers. For silicon image sensors, the limit is 11.1 ps. By considering the theoretical derivation, a high-speed image sensor designed can achieve the frame rate close to the theoretical limit. However, some of the conditions conflict with performance indices other than the frame rate, such as sensitivity and crosstalk. After adjusting these trade-offs, a simple pixel model of the image sensor is designed and evaluated by simulations. The results reveal that the sensor can achieve a temporal resolution of 50 ps with the existing technology.
Databáze: Directory of Open Access Journals
Nepřihlášeným uživatelům se plný text nezobrazuje