Optimum design of CMOS APS imagers
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The main problem for CMOS active pixel sensors (APS) design is its fill factor and photosensitivity improvement. Using developed CMOS APS models we have solved this problem as mathematical optimization task. The fill factor is the aim function. The limits are: time delays, signal-to-noise ratio, horizontal and vertical MTFs, pixel sizes, and project rules. The simulation results for APS based on 4 transistors are given.
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