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Volume: 33 | Article ID: art00009
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0.8 um Color Pixels with Wave-Guiding Structures for Low Optical Crosstalk Image Sensors
  DOI :  10.2352/ISSN.2470-1173.2021.7.ISS-093  Published OnlineJanuary 2021
Abstract

Low optical-crosstalk color pixel scheme with wave-guiding structures is demonstrated in a high resolution CMOS image sensor with a 0.8um pixel pitch. The high and low refractive index configuration provides a good confinement of light waves in different color channels in a quad Bayer color filter array. The measurement result of this back-side illuminated (BSI) device exhibits a significant lower color crosstalk with enhanced SNR performance, while the better angular response and higher angular selectivity of phase detection pixels also show the suitability to a new generation of small pixels for CMOS image sensors.

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Yu-Chi Chang, Cheng-Hsuan Lin, Zong-Ru Tu, Jing-Hua Lee, Sheng Chuan Cheng, Ching-Chiang Wu, Ken Wu, H.J. Tsai, "0.8 um Color Pixels with Wave-Guiding Structures for Low Optical Crosstalk Image Sensorsin Proc. IS&T Int’l. Symp. on Electronic Imaging: Imaging Sensors and Systems,  2021,  pp 93-1 - 93-5,  https://doi.org/10.2352/ISSN.2470-1173.2021.7.ISS-093

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