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Proceedings Paper

Effects of aperture size on the performance of CMOS image sensor with pixel aperture for depth extraction
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Paper Abstract

Effects of aperture size on the performance of CMOS image sensor with pixel aperture for depth extraction are investigated. In general, the aperture size is related to the depth resolution and the sensitivity of the CMOS image sensor. As the aperture size decreases, the depth resolution is improved and the sensitivity decreases. To optimize the aperture size, optical simulation using the finite-difference time-domain method was implemented. The optical simulation was performed with various aperture sizes from 0.3 μm to 1.1 μm and the optical power with the incidence angle as a function of the aperture size was evaluated. Based on the optical simulation results, the CMOS image sensor was designed and fabricated using 0.11 μm CMOS image sensor process. The effects of aperture size are investigated by comparison of the simulation and the measurement results.

Paper Details

Date Published: 17 September 2018
PDF: 6 pages
Proc. SPIE 10746, Novel Optical Systems Design and Optimization XXI, 107460P (17 September 2018); doi: 10.1117/12.2500229
Show Author Affiliations
Byoung-Soo Choi, Kyungpook National Univ. (Korea, Republic of)
Sang-Hwan Kim, Kyungpook National Univ. (Korea, Republic of)
Jimin Lee, Kyungpook National Univ. (Korea, Republic of)
Donghyun Seong, Kyungpook National Univ. (Korea, Republic of)
Seunghyuk Chang, Ctr. for Integrated Smart Sensors (Korea, Republic of)
JongHo Park, Ctr. for Integrated Smart Sensors (Korea, Republic of)
Sang-Jin Lee, Ctr. for Integrated Smart Sensors (Korea, Republic of)
Jang-Kyoo Shin, Kyungpook National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 10746:
Novel Optical Systems Design and Optimization XXI
Cornelius F. Hahlweg; Joseph R. Mulley, Editor(s)

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