Our Application Note 97772 RO [Monitoring a flux cleaning line] covers your
questions fairly well at an accessible/depth length. You can download it
from our tech library. That's the theory.
Practically speaking, we and other flux/solder suppliers publish data giving
process details for principal cleaner types/our products combinations.
Regards
Mike
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Forrester, Michael (H
USA)
Sent: Monday, January 24, 2011 11:43 AM
To: [log in to unmask]
Subject: [TN] PCA Cleanliness
I have a basic question. What is the industry standard on checking
PCA cleanliness?
Basically there are various methods (ROSE, IC, etc..). For a standard
SMT
production line, is the testing done once a day, week, batch, etc.. I
understand that the
testing is to be used as a process control. Maybe some SMT lines get
the process
under control and don't do testing? What should the total ion
contamination on a standard
SMT PCA be below for a standard SMT PCA? Thank you.
Best Regards,
Michael Forrester
Sr. Product Engineer
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