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An in-depth look at Backside Illumination Technology for Imaging Applications

Authored on: Jun 19, 2009

Technical Paper

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OmniVision's OmniBSI pixel technology revolutionizes CMOS image sensor performance and camera module design. This paper reviews mobile imaging trends, the limitations of current pixel designs, and how OmniBSI provides superior performance. It introduces the fundamentals of image sensor pixel design and manufacturing, including processing steps and design issues. It explains important performance metrics like quantum efficiency, sensitivity, noise, SNR, crosstalk, and chief ray angle (CRA) and why they are important to image quality, noise, color response, and image sharpness. The paper also shows how OmniBSI technology enables thinner camera modules, wide aperture lenses, zoom lenses without increasing module manufacturing costs.



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