Hello All,
 
I posted this during the long weekend and did not get a response. Does anyone have some input on the following?
 
A colleague asked us the following question and we thought it would be good to post on TechNet.
 
"Is anyone aware of a spreadsheet that can calculate acceleration
factors for conversion of PCB cycles to failure from one thermal cycle
(e.g. -40/125C) to another (-20/80C)? Looking at IPC-TR-579 (Round Robin
Reliability Evaluation of Small Diameter PTHs in PWBs), it seems like
the equations presented in section 7 (e.g. Eq. 6) could be used to do
this."
 
Best regards,
 
Paul Reid
PWB Inc.

 


______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask] 
______________________________________________________________________

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 16.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------