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Component Integration: CCD vs. CMOS
CCD has been around longer, but CMOS is closing the gap
And with all the differences between the two technologies, there is a common thread.
"In CMOS, for every pixel there are three MOSFETs (metal-oxide semiconductor field-effect transistors). That's a lot when you have one million pixels, so you share mosfets among four pixels. To do that you have to transfer the charge. You rely on charged coupling, which is CCD, to get a smaller transfer charge to the common nodes to share MOSFETs. CMOS needs CCD. It relies on it. Voltage to CMOS is a lot lower than CCD. It's the same process; you just tweak it differently to make it work.
"CMOS is well-fitted for the future in terms of high-speed applications."
