We've been removing solder and re-golding gold fingers for several 
     years. We use equipment and supplies from Circuit Repair Corp.. and 
     Pace. The guidelines in IPC-R-700C, sections 4.4.2 and 4.2.3.1 show 
     how this is done. The equipment is relatively inexpensive, though 
     there are chemical reclaiming issues and personal protection is 
     needed. This capability has "saved the day" a number of times.
     
     John L.


______________________________ Reply Separator _________________________________
Subject: Gold/Tin - How to Remove Sn and Replate Au
Author:  [log in to unmask] at Internet
Date:    3/4/97 4:43 PM


     
     
Subject: Gold/Tin
     
     Darrell Daigle posted a request for info on the effect of solder on a 
     gold-plated finger that is to be inserted in a gold socket.
     
     [Body deleted]
     
     Where the operating environment can lead to corrosion for any of these 
     reasons, the corrective action is to remove the solder and replate the 
     gold.
     
     
 ----------
     
I did not know it was possible to remove solder and replate gold...  There 
has been a couple of emergency situations when we would have like to have 
this capability, be it for PCB's or components, or other...  Can someone 
provide specifics?
     
     
*************************************************************************** 
* TechNet mail list is provided as a service by IPC using SmartList v3.05 * 
*************************************************************************** 
* To subscribe/unsubscribe send a message <to: [log in to unmask]>   * 
* with <subject: subscribe/unsubscribe> and no text in the body.          * 
*************************************************************************** 
* 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 subscribe/unsubscribe send a message <to: [log in to unmask]>   *
* with <subject: subscribe/unsubscribe> and no text in the body.          *
***************************************************************************
* 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]      *
***************************************************************************