----- Original Message -----
From: "Frits J. W�thrich" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, July 26, 2001 11:40 PM
Subject: RE: Is the New LX Going to Be a Digital Camera
> 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.
>
Thanks Frits. So if you were using four chips to create your super-CCD you'd
get 3 super-CCD's for every 4 waffers.
That's is, of course, assuming Phillips are doing it along those lines...
Out of interest, does anyone know what the failure rate is for CCD's that
are deemed acceptable for commercial use?
doctor digi
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