Frank,
     While temp cycling might be interesting, it would not provide assurance
that your potential Qualified Supplier has their processes controlled.
 Unless you have reviewed their process controls you have no way of knowing
if the samples had a baby sitter throughout the process, they just got lucky
or they actually can produce a consistent level of acceptable quality.
     Your samples could have been built by their best operator in their
prototype lab.  You need to know what they can produce EVERY day.  For
example two primary concerns would be, do they have written procedures that
are controlled and actually used for all the steps used in building your
assembly?  Do they have up to date maintenance and training records?  Another
area of interest should be their corrective action system.  
           Unless you know they have sufficient controls in place to produce
uniform quality, every order is comparable to a lottery ticket.
    
        Norm Dill


***************************************************************************
* 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]      *
***************************************************************************