One of the easiest ways is to just run the bare boards over a wave with a flux that is active enough to do what you need to have done. Sometimes just cleaning in the "right" solution will do it. Depends on quantity/available capabilities/how bad the boards are. "Old" boards may need a bake to get rid of absorbed moisture, and this can compound the solderability issue. Assess the total issue and make sure that all the extra effort and potential assembly problems and the reliability impact against projected life cycle and end product use don't exceed the cost of scrapping the boards and using new builds. >Does anyone have any information how to fresh up old PCBs with bad >solderability? >Does the board manufacturer do it? >If yes, how? >I'm very interested in any kind of detailed information about this >procedure. > >Regards, >Jan Merstrand >[log in to unmask] ***ALL NEW EMPF PHONE NUMBERS*** Jack Crawford HelpLine Manager Electronics Mfg. Productivity Facility ****NEW--317.655.3688--NEW**** *****FAX 317-655-3699 NEW **** 714 N Senate Ave, Suite 100 Indianapolis IN 46202-3112 VISIT OUR HOME PAGE AT: http://www.empf.org [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. * ***************************************************************************