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http://dx.doi.org/10.4313/JKEM.2012.25.11.857

Pixel FPN Characteristics with Color-Filter and Microlens in Small Pixel Generation of CMOS Image Sensor  

Choi, Woonil (Department of Electronic Engineering, Chungnam National University)
Lee, Hi-Deok (Department of Electronic Engineering, Chungnam National University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.25, no.11, 2012 , pp. 857-861 More about this Journal
Abstract
FPN (fixed-pattern-noise) mainly comes from the device or pattern mismatches in pixel and color filter, pixel photodiode leakage in CMOS image sensor. In this paper, optical stack module related pixel FPN was investigated and the classification of pixel FPN contribution with the individual optical module process was presented. The methodology and procedure would be helpful in reducing the greater pixel FPN and distinguishing the complex FPN sources with respect to various noise factors.
Keywords
CMOS image sensor; pixel FPN; Microlens; CFA (color-filter-array);
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