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CMOS Synchronous shutter backside illuminated image sensor for hyperspectral imaging Host Publication: Finds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet Authors: B. Dierickx, B. Dupont, P. Jerram, M. Fryer, J. Pratlong, A. Walker and A. Defernez Publication Date: Jun. 2009
Abstract: There is an ongoing debate about whether CMOS or CCD is the better technology for space imaging. The reality is
that the answer depends on the exact application being considered. In this article we present one field, hyperspectral
imaging (HSI), where CMOS technology can potentially avoid some of the disadvantages that have been seen with
CCDs and discuss the design of a sensor that is optimised for this application.
The challenges with hyperspectral imaging result from the very large difference in intensity between the weakest and
brightest spectral lines. The use of CMOS technology removes the frame-shift smear that can produce significant
crosstalk. The design of the sensor has been focused at obtaining the optimum performance from all spectral lines by
allowing flexible integration time and sensitivity.
In this paper we present the concept and design of a novel pixel and sensor architecture that achieves the difficult
combination of fully pipelined synchronous shutter operation, in a standard CMOS technology (with higher
resistivity and thicker epi), and which is capable of operating with maximum fill factor in backside illumination. The
pixel is also capable of CDS operation. External Link.
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