Traditional Reliability Methods
Abstract
Kirk and Fred discuss a question from a listener about why traditional reliability methods don’t work for modern electronics.
Key Points
Join Kirk and Fred as they discuss why traditional methods, such as those based on prediction using classical references like Military Handbook 217F don’t work with today’s electronics..
Topics include:
- Please read the 1996 article from Professor Michael Pecht, founder of CALCE, linked here “Why the traditional reliability prediction models do not work – is there an alternative?”
- Military Handbook 217, which has not been updated in over 30 years and has historically served as the basis for reliability prediction of electronic systems. Unfortunately, it is still being referenced for current electronics reliability predictions in some companies. Please see the link here to the article from CALCE and the U.S. Army, “Reliability Prediction – Continued Reliance on a Misleading Approach.”
- IThe decreasing dimensions of electronic components and circuit boards, along with significantly higher clock speeds in digital electronics, have made some third-order effects become first-order effects that were previously not considered
- Any product with a robust design can, at any time during the manufacturing period, become unreliable if a “manufacturing excursion” occurs, and there isn’t a crystal ball that can predict it.
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.
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Show Notes
Please click on this link to access a relatively new analysis of traditional reliability prediction methods article from the US ARMY and CALCE titled “Reliability Prediction – Continued Reliance on a Misleading Approach”. It is in the public domain, so please distribute freely. Attempting to predict reliability is a misleading and costly approach to use for developing a reliable system.
You can now purchase the most recent recording of Kirk Gray’s Hobbs Engineering 8 (two 4 hour sessions) hour Webinar “Rapid and Robust Reliability Development – 2022 HALT & HASS Methodologies Online Seminar” from this link.
For more information on the newest discovery testing methodology here is a link to the book “Next Generation HALT and HASS: Robust design of Electronics and Systems” written by Kirk Gray and John Paschkewitz.
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