Charge Transfer in a CCD 1.
In the following few slides, the implementation of the ‘conveyor belts’ as actual electronic
structures is explained. 
The charge is moved along these conveyor belts by modulating the voltages on the electrodes
positioned on the surface of the CCD.  In the following illustrations, electrodes colour coded red
are held at a positive potential, those coloured black are held at a negative potential.
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3