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December 1998

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DesignerCouncil <[log in to unmask]>
Subject:
Double Sided Part Placement
From:
Mark Koitmaa <[log in to unmask]>
Date:
Fri, 11 Dec 1998 14:00:57 -0800
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"DesignerCouncil E-Mail Forum." <[log in to unmask]>, Mark Koitmaa <[log in to unmask]>
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I have been asked by an engineer that I am working with to restrict the top
side/bottom side placement of parts according to part values (all parts are
0805's).  For example if I place a 10K resistor on the bottom side, all
10K's should also go to the bottom side.  He does not want me to mix parts
of the same value between two sides.

He tells me this will significantly reduce assembly costs.  I have never
heard of such a thing.  Is he correct?  I believe the extra layout time
will negate any potential savings in assembly setup.  Any comments?


Mark Koitmaa
TechServ
http://www.techservinc.com

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