SRC Forum - Message Replies
Forum: Reliability & Maintainability Questions and Answers
Topic: Reliability & Maintainability Questions and Answers
Topic Posted by: Reliability & Maintainability Forum
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998
Posted by: Mark Urban
Date posted: Thu Jan 21 13:57:05 US/Eastern 1999
Does burn in today buy you anything? We currently perform a static burn in with after burn test defects around 0.001%.
Dynamic burn in has been suggested. What about HALT testing on prototypes and eliminating burn in on production lots.
Any input would be much appreciated.
Reply Posted by: Bruce Dudley
Organization: Reliability Analysis Center
Date Posted: Thu Jan 21 15:33:49 US/Eastern 1999
Looking at your low defect rate of 0.001%, it seems that the static burn-in test is either not stressing the units sufficiently or the quality is great. A dynamic burn-in test could add additional stress. If you continue to find few failures with a stress increased static test or a new dynamic test, then you should consider stopping the burn-in entirely. Burn-in testing is a functional test if there are lots of defects. On the other hand, HALT testing is usually done to find design and component deficiencies, not manufacturing and vendor defects.