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19 January 2009 Decoupling photo collection efficiency and color crosstalk from the quantum efficiency spectrum for the CMOS image sensor pixel development
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Proceedings Volume 7250, Digital Photography V; 725004 (2009) https://doi.org/10.1117/12.805743
Event: IS&T/SPIE Electronic Imaging, 2009, San Jose, California, United States
Abstract
Photo collection efficiency (proportional to the sensitivity of the photo sensor) and color crosstalk, both optical and electrical, are extremely important CMOS image sensor (CIS) pixel parameters. In measured QE data, photo collection efficiency and crosstalk information are mixed and it is difficult to disentangle the contributions of each to the raw QE spectrum. In our pixel optimization work, it is desirable to extract each component and to further separate the contribution of the color filter array (CFA) from the fundamental processes in and above the Silicon. In this paper, a new approach is introduced to extract the QE data related to the Si processing and decompose it into two components, the Mono QE and crosstalk spectrum, respectively. Using this approach one may gauge the impact of pixel structure differences, realize the sensor design goals to achieve the targeted system performance.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yang Wu, Philip J. Cizdziel, and Howard E. Rhodes "Decoupling photo collection efficiency and color crosstalk from the quantum efficiency spectrum for the CMOS image sensor pixel development", Proc. SPIE 7250, Digital Photography V, 725004 (19 January 2009); https://doi.org/10.1117/12.805743
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