Crest Ultrasonics makes the very best US cleaning equipment you can get
for the money. Much better than "the other" company also known for
making US cleaners.
Crest has developed systems that are absolutely safe for electronics.
Dr. Sami Awad, a vice-president of the company is an expert in cleaning
electronics safely. The US cleaners they make are used in many military
and medical applications. I have purchased and used them in many
previous jobs and I have had them installed at companies I consult for
as well. They have lasted for more than 10 years completely trouble
free, so far. The ultrasonic power never "fades away" like other brands
I have used. Look at the white papers on their website regarding
cleaning of electronics. No, I don't own any stock in the company, but I
do want to let others know when I see a really good product. This is a
good company with very knowledgeable people.  
http://www.crest-ultrasonics.com/index.html



-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Gregg Owens
Sent: Thursday, January 07, 2010 1:28 AM
To: [log in to unmask]
Subject: [TN] ULtrasonic Cleaning of PCBAs

Dear Technetters:

I have been posed a question that I don't have much experience with
other than general knowledge. It there an ultrasonic cleaner
system/setting available that can clean printed circuit assemblies (yes
will electronic components)?  With some pending designs there is a
concern that our board houses will be able to sufficiently clean
(deflux) under bottom only components/BGA style components. I know from
the standards that ultrasonic cleaning is typically limited to bare
boards so as to not damage internal interconnections/wire bonds. But I
am wondering if there is a low setting available to agitate the solution
while not destroy/damage components?

Your thoughts are most appreciated.

Gregg Owens
Technical Writer - Avionics
Space Exploration Technologies Corporation
1 Rocket Road | Hawthorne | CA | 90250
[log in to unmask]

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