A Back-Illuminated Global-Shutter CMOS Image Sensor with Pixel-Parallel 14b Subthreshold ADC

📋 论文概要

本文提出一种背照式全局快门CMOS图像传感器，采用像素并行14位亚阈值ADC，解决了滚动快门导致的运动物体失真问题，同时提高了灵敏度和能效。

💡 主要创新点

• 采用全局快门像素结构，消除运动物体失真。
• 结合背照式工艺，提升量子效率和光灵敏度。
• 像素级并行14位亚阈值ADC，实现高精度低功耗读出。

🏷 关键词

📄 原文摘要

Katsumi Honda1, Hidekazu Kikuchi1, Takuya Wada1, Yasunobu Kamikubo1, Tsukasa Miura1, Masahiko Nakamizo1, Naoki Jyo2, Ryo Hayashibara2, Yohei Furukawa3, Shinya Miyata3, Satoshi Yamamoto1, Yoshiyuki Ota1, Hirotsugu Takahashi1, Tadayuki Taura1, Yusuke Oike1, Keiji Tatani1, Takashi Nagano1, Takayuki Ezaki1, Teruo Hirayama1 Sony Semiconductor Solutions, Atsugi, Japan 2 Sony Semiconductor Manufacturing, Kumamoto, Japan 3 Sony LSI Design, Fukuoka, Japan 1 Rolling-shutter CMOS image sensors (CISs) are widely used [1,2]. However, the distortion of moving subjects remains an unresolved problem, regardless of the speed at which these sensors are operated. It has been reported that by adopting in-pixel analog memory (MEM) in pixels, a global shutter (GS) can be achieved by saving all pixels simultaneously as stored charges [3,4]. However, as signals from a storage unit are read in a column-wise sequence, a light-shielding structure

👥 作者与机构

Masaki Sakakibara1, Koji Ogawa1, Shin Sakai1, Yasuhisa Tochigi1,