Speaking Of Reliability: Friends Discussing Reliability Engineering Topics | Warranty | Plant Maintenance SOR 1062 Traditional Reliability Methods
Apr 18, 2025
Kirk and Fred tackle how traditional reliability methods fall short in today's complex electronics landscape. They critique outdated approaches, like the Military Handbook 217, which hasn't been revised in decades. The hosts delve into the challenges posed by smaller components and higher clock speeds that change failure dynamics. Plus, they highlight the importance of adapting reliability testing to match modern manufacturing variabilities. Expect insights on the evolution of technology and personal anecdotes that shape our future innovation expectations.
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Modern Electronics Challenge Traditional Methods
- Traditional reliability methods don't fully address new failure modes in modern electronics like 20+ layer PCBs and embedded components.
- Increasing electronic speeds transform 3rd order effects into critical first order issues needing new approaches.
Limitations of Military Handbook 217
- Military Handbook 217 and similar models rely on oversimplified fit rates and assume constant failure rates which are inaccurate for today's electronics.
- These models ignored wear-out mechanisms, resulting in poor field reliability correlations.
Design for Robustness Early
- Build the most robust design early to tolerate manufacturing and environmental variations.
- Monitor manufacturing excursions closely as even good designs can fail with inconsistent production.