T Rittenhouse wrote:
> 
> My thinking is the cost of the wafer is only part of the cost of the chip.
> The engineering, and production costs would be relatively constant across
> chips of the same complexity while the cost of the wafer would be
> proportional to size. Therefore a 12x18mm 6mp chip might be roughly 3/4 the
> cost of 24x36 6mp chip despite being 1/4 the size. That all of course
> presupposes that a breakthrough occurs in the manufacturing of wafers.

Are you considering yield here, as well?
Some chips of some size, just simply don't give a good final yield, for
some reason, and not necessarily related directly to complexity.
Might be any number of factors, but some chip designs are terrible to
get a good yield from. Lotsa scrap!

keith
 
> Ciao,
> Graywolf
> http://pages.prodigy.net/graywolfphoto
> 
> ----- Original Message -----
> From: "Herb Chong" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Monday, August 11, 2003 4:47 PM
> Subject: Re: Full frame D-SLR - get over it
> 
> > the smaller chip will still be cheaper roughly proportional to area. the
> constant and fixed cost may change.
> >
> > Herb.....
> > ----- Original Message -----
> > From: "T Rittenhouse" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Monday, August 11, 2003 14:27
> > Subject: Re: Full frame D-SLR - get over it
> >
> >
> > > That assumes that there is not a break through in the production of
> larger
> > > chips. At the rate of change in FAB quality, I would predict that the
> cost
> > > differential will soon be less than the difference in chip area. Almost
> no
> > > one 10 years ago believed they would ever be able to make the chips that
> are
> > > nothing special today.
> >
> >
> >
> 
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.507 / Virus Database: 304 - Release Date: 8/4/03

Reply via email to