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May 1997

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Subject:
From:
"Scott B. Westheimer" <[log in to unmask]>
Date:
Tue, 13 May 1997 05:10:13 +0800
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From: Scott Westheimer
Date: 5/13/97

I have just recently been put in charge of routing and blanking and I am
encountering several issues. Do most of you out there let/have operators
that change the compensations? Do you have to change them frequently and
over and over again on the same P/N's? Is there software that can help with
fabrication?

The reasons for my questions is that we have arrays on panels that on one
side of the panels is fine, but on the other end we start cutting into the
fingers. We also have arrays with 3 boards and on the outside cut the board
is 0.020" to wide and the 2 internal boards they are 0.018" to short. Most
of the problems seem to be that when we move away from on edge of the panel
during routing that the dimensions of the routed boards and arrays worsen.
It seem that this has to be compensation because material does not move
that symmetrical.

Any help would be appreciated.  

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