Pete,
Sounds like failure analysis is not yet complete.
You need to understand the root cause of the delam.
Once you have that you can explain to management whether there is any value in process change.
Without understanding of the cause it is impossible to fix and that probably is what management really wants.
Complete FA is worth it's cost and can even prove it is a fluke that just happened.
Good Luck
FNK

Sent from my iPad

> On Oct 1, 2013, at 12:58 PM, Pete <[log in to unmask]> wrote:
> 
> In this case,  it wouldn't help to bring the boards here first.  Delam doesn't show up until after thermal cycling.  It actually might be worse, we would have to break the vacuum seal, soak up all the moisture here, then mail them off again.
> 
> There's really no need.  We have an excellent fab shop, a very good assembler, never had a problem in the past.  Everything was done right, but we still had a problem - sometimes it happens.  That's not the problem I'm trying to solve now.  I'm trying to keep my management from changing a process that has worked very well for 20 years, because they want to try to make someone else assume liability.  They don't want to hear all of the difficulties, costs, and time added just to possibly get someone else to pay for a problem that occurs for us about once every 10 years.
> 
> Pete
> 
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