21 May 2014 A 33-mpixel 120-fps CMOS image sensor using 0.11-μm CIS process
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Abstract
We have been researching and developing a CMOS image sensor that has 2.8 μm x 2.8 μm pixel, 33-Mpixel resolution (7680 horizontal pixels x 4320 vertical pixels), 120-fps frame rate, and 12-bit analog-to-digital converter for “8K Super Hi-Vision.” In order to improve its sensitivity, we used a 0.11-μm nanofabricated process and attempted to increase the conversion gain from an electron charge to a voltage in the pixel. The prototyped image sensor shows a sensitivity of 2.4 V/lx•s, which is 1.6 times higher than that of a conventional image sensor. This image sensor also realized the input-referred random noise as low as 2.1 e-rms.
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Toshio Yasue, Tetsuya Hayashida, Jun Yonai, Kazuya Kitamura, Toshihisa Watabe, Hiroshi Ootake, Hiroshi Shimamoto, Tomohiko Kosugi, Takashi Watanabe, Satoshi Aoyama, Shoji Kawahito, "A 33-mpixel 120-fps CMOS image sensor using 0.11-μm CIS process", Proc. SPIE 9100, Image Sensing Technologies: Materials, Devices, Systems, and Applications, 910005 (21 May 2014); doi: 10.1117/12.2049145; https://doi.org/10.1117/12.2049145
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