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[OM] Re: OT Kodak has a big CCD -- 22 megapixels: now fairchild 84Mpixel

Subject: [OM] Re: OT Kodak has a big CCD -- 22 megapixels: now fairchild 84Mpixel
From: Joe Gwinn <joegwinn@xxxxxxxxxxx>
Date: Fri, 30 Jan 2004 22:48:25 -0500
Wow!  Thanks for the pointer.  This will make astronomers sit up.

It even comes with a thermoelectric cooler, or at least the demo board does.  

At 3:21 AM +0100 1/31/04, Listar wrote:
>Date: Fri, 30 Jan 2004 12:41:15 -0800 (PST)
>From: Tim Hughes <timhughes@xxxxxxxx>
>Subject: [OM] OT Kodak has a big CCD -- 22 megapixels: now fairchild 84Mpixel
>
>
>The largest CCD's I have seen advertised, are the industrial (spy satellite 
>etc) ones from
>Fairchild. 84Mpixel. and 8*8cm. see 
>http://www.fairchildimaging.com/main/documents/ccd595.pdf
>Interestingly they claim 100% pixel fill factor, this seems unlikely, unless 
>they stack the
>electronics vertically and even then you need metalization for power??

Or, the chip is back-illuminated.


>With such a huge analog chip the yield must be low so only the 
>government/military etc can
>probably afford these. For discussion of CCD's for more varied applications, 
>other than consumer cameras see : http://www.not.iac.es/CCD-world/archive/
>
>The likely long readout time, probably means it could only be used in a studio 
>application. It
>would also require a a rotating color filter etc as it does not have any on 
>chip color filters. 

The Kodak 22 Mpix chip takes 2.56 seconds.

Joe Gwinn


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