학술논문

Cross Dual-Pixel Twisted-Photodiode Image Sensor for All-Directional Auto Focus

Document Type

Conference

Author

Shirahige, D.; Fukuda, K.; Ikeda, H.; Onuki, Y.; Toyoguchi, G.; Sekine, H.; Hayashi, S.; Okamoto, K.; Wakashima, S.; Yoshida, R.; Iwata, J.; Matsuno, Y.; Sakurai, K.; Yuzurihara, H.; Ichikawa, T.

Source

2023 International Electron Devices Meeting (IEDM) Electron Devices Meeting (IEDM), 2023 International. :1-4 Dec, 2023

Subject

Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Nuclear Engineering
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Phased arrays
Performance evaluation
Sensitivity
Capacitance
Photodiodes
Phase detection
P-n junctions

Language

ISSN

2156-017X

Abstract

We present a CMOS image sensor with twisted photodiode (PD) that enables all-directional autofocus (AF) for high-speed and high-accuracy AF. The newly developed 3D-stacked back side illuminated (BSI) sensor with twisted PD achieves a comparable AF angular response for horizontal and vertical directions, realizing AF in all pixels and in all directions. In addition, full well capacity (FWC) of 121,000e- and image lag of

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