🚀 go-pugleaf

In article <1993Jan5.184502.24931@ptdcs2.intel.com>, ssivakum@ptdcs2.intel.com (Sam Sivakumar) writes:
|> the desks of the engineers and technicians.  There are a lot of old timers 
|> around that have wafers of every size that has been used for production, all
|> the way from 2 inch diameter to the current 8 inch standard.  I have also
|> seen 10 inch wafers which I believe are in pilot lines in some places if not
|> in actual production, and a 12 inch wafer that was the most mindboggling 
|> thing that I have ever seen.  (Picture attempting to grow a 75 angstrom thick
|> gate oxide with less than 5 angstroms variation across a 12 inch diameter
|> piece of silicon!).
                                 
There's a question I'd always wanted to ask.  Why are wafers still made circular?
Since the dice are rectangular, wouldn't it save material growing the crystals
in a rectangular wafer?  

............................................................................
. Kyle Hor                    .    /       / _   .  Email  khor@bnr.ca     .
. Bell-Northern Research Ltd. .   /__\  / / /_\  .  Phone  (613) 763-2488  .
. Ottawa, Ontario, Canada     .  / \  \/ /  \__  .  ESN          393-2488  .
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................  standard disclaimer, 2 cents opinion  ....................
.............  searching forever, for the perfect solution  ................