On  7 Sep 99 at 16:13, Martin B Truter wrote:

> Hi
>
> Is ultrasonic cleaning of an assembled PCB considered harmful to components
> (IC).
>
I would not consider only ICs. I heard about possibe damages on
crystals (especially if some harmonics from the ultrasound hit the
quartz frequency) and ceramic chip capacitors (they cracked).

... can of worms ......
just my 2 cents
Regards
Matthias Mansfeld


-----------------------------------------------
Matthias Mansfeld Elektronik
* Printed Circuit Board Design and Assembly
Am Langhoelzl 11, D-85540 Haar, GERMANY
Phone: +49-89-4620 0937, Fax: +49-89-4620 0938
E-Mail: [log in to unmask]
Internet: http://www.mansfeld-elektronik.de

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