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February 2009

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Subject:
From:
"Stadem, Richard D." <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Stadem, Richard D.
Date:
Thu, 19 Feb 2009 08:54:45 -0600
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The boards go into the 105 Deg. C oven for 20 minutes. That removes all
surface moisture and entrapped moisture in vias, etc. Then they are
allowed to cool to room temp, and back into the printer.  

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Leif Erik Laerum
Sent: Thursday, February 19, 2009 7:56 AM
To: [log in to unmask]
Subject: Re: [TN] Ultrasonic cleaner for PCB

Richard,

A related note. How do you dry your boards after cleaning in the
ultrasonic cleaner? Do these cleaners come with a drying capability? We
are looking for a more efficient way of cleaning misprints.

Leif Erik Laerum
Quality Assurance Manager
Texas Memory Systems
[log in to unmask]
Tel: (713) 266-3200 x468
www.texmemsys.com



Stadem, Richard D. wrote:
> The best ultrasonic cleaners are made by Crest. They are not made by 
> Branson.
> Crest cleaners are designed with the specific frequencies that are 
> safe for cleaning electronics, and work beautifully for stencils and 
> PWBs as well. My experience with Crest cleaners is that they work 
> forever, with no diminishing over time. I certainly cannot say that
for Branson.
> No, I don't work for Crest, nor do I have any interest in the company.

> I just have used Crest many times at different companies for the past 
> 30 years, and all of the ones I have ever purchased are still working.

> They make a really good product, and they are very knowledgeable
people.
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Ray Kong
> Sent: Wednesday, February 18, 2009 5:19 PM
> To: [log in to unmask]
> Subject: [TN] Ultrasonic cleaner for PCB
>
> Hi all,
>
> Can someone recommend a ultrasonic cleaner for mis-print PCBs?  Our 
> board size is less than 8"x10"
>
> Thanks all in advance.
>
> Regards,
>
> Ted Kong
>
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