Abstract

Kirk and Fred discuss how using environmental stress can help discover marginal operation failures and intermittent connections that are not detectable during bench testing and troubleshooting at ambient conditions.

Key Points

Join Kirk and Fred as they discuss how to best address the problem of warranty returns that seem to be working fine, and the challenges to finding the real reasons it may or may not be a failure mode that can reproduce when returned to the producer.

Topics include:

• How some failures mechanisms such as fretting corrosion in connectors can disappear during failure analysis
• How many good parts can be returned as a result the expediency of getting a system repaired
• Anecdotal evidence that thermal cycling can help to reproduce a field failure not found during bench testing

Enjoy an episode of Speaking of Reliability, where you can join friends as they discuss reliability topics.

Join us as we discuss topics ranging from design for reliability techniques to field data analysis approaches.

SOR 091 How to Address NDF IssuesKirk Gray

share

• Social:
• Link:
• Embed:

Download Audio  RSS

Show Notes

For additional information on another potential cause of No Defect Found (NDF) warranty returns, see the Accendo Reliability Blog post “Why Parametric Variation Can Lead to Failures and HALT Can Help“