Charles Barker@I-O INC
05/29/98 08:29 AM

Steve,

We are running two HVN102's without Nitrogen and an HVA70. We have never
run any type of "buffer" board thru any of the machines.
Has your customer been brainwashed by a prior supplier, perhaps?

I have come across people who were burned by an incidence where a supplier
let a process get out of control.  The supplier then blamed the "chemistry,
process, etc."  Those people now think that that "chemistry, process, etc."
is no good and should be forever banned.

You have to find a way to "brainflush" them.  If they have a closed mind,
that can be quite a challenge!

Good luck.

Charlie B.




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cc:    (bcc: Charles Barker/US/I-O INC)
Subject:  [TN] Oven Heat Loading Clarification




All,
To clarify my earlier posting....
It isn't that our oven has ever exhibited heat loading
problems.  In fact, I plan on some heat loading experiments
to prove this.  I just have an external customer who likes
to help.  The problem is they are 100% convinced of the
following:
1)  We absolutely have to have nitrogen on our reflow oven.
2)  We have to place buffer boards before and after each
production assembly or else our heaters won't handle the
load properly.
I do appreciate all the responses so far, although more
opinions are welcomed and encouraged.
Thank you all for your help.
Steve McBride
[log in to unmask]
(405) 624-5281

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