Please check your current reading of your plating line. Bad rack usually
sent out warning signal on current reading.

At 23:25 96/12/17 +0800, you wrote:
>
>Terry,
>
>Try this on for size:
>The automatic plating racks are developing opens or high resistance 
>connections leaving seemingly random boards with thin copper.  Further 
>processing removes the remaining copper and ... there they are... Voids.
>
>Need to number your plating racks and keep track of which panels are run 
>on which racks.  In a past life, a small mature Baker Bro. line would 
>generate 2 to 4 bad racks per quarter.
>
>The correct thing to do would be to buy another set of racks and do a 
>wholesale replace and repair every 8 - 18 months.  I am sure your local 
>rack man would love to help you out.
>
>There are many other possibilities.  I will let others tell you about 
>them.
>
>George Franck
>
>Whoops, sorry I did not copy the original question from Terry, 
>[log in to unmask]
>
>-- 
>
>
>George Franck Jr
>Raytheon E-Systems
>Product Assurance Engineer
>Falls Church Va
>
>***************************************************************************
>* TechNet mail list is provided as a service by IPC using SmartList v3.05 *
>***************************************************************************
>* To unsubscribe from this list at any time, send a message to:           *
>* [log in to unmask] with <subject: unsubscribe> and no text.        *
>***************************************************************************
>* If you are having a problem with the IPC TechNet forum please contact   *
>* Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask]      *
>***************************************************************************
>
>

***************************************************************************
* TechNet mail list is provided as a service by IPC using SmartList v3.05 *
***************************************************************************
* To unsubscribe from this list at any time, send a message to:           *
* [log in to unmask] with <subject: unsubscribe> and no text.        *
***************************************************************************
* If you are having a problem with the IPC TechNet forum please contact   *
* Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask]      *
***************************************************************************