We have a customer that is experiencing problems with chip components; the
ceramic is separting from the end termination metalization. The board is
thin at .031" and the problem occurs when the board flexes. All chip
metallization remains embedded in the solder fillet and the ceramic body
pulls away. Dialog with their component source says to stiffen the board so
it doesn't flex, but these folks are aware of placing components on much
less rigid flex print, and aren't familiar with resultant component damage
in that process.

They are examing the possibility to move to a thicker board, but in the
meantime just looking for a spec/guideline that will tell them how securely
attached the end metalization should be on a chip resistor.

Suggestions?

***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.        *
***************************************************************************
* 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]      *
***************************************************************************