> chip is actually composed of several CCD chips stitched together in some
> special (presumably patented ;-) way. This means they can build
> large chips
> from small wafers.
>
> The yield in this case would seem to be better. But then I'm not a
> statistician.
>
> doctor digi
The smaller a specific chip is, the smaller the chance would be, to have a
fault in it. If you have a process with one error in every square inch, and
you have a chip of that size, you would have one error per chip and a yield
of 0%. The same process on a chip of a quarter of that size, will have three
correct chips and one fault, leading to a yield of 75%, quite a difference.

Frits

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