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Ask the Experts Index |
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Dec 3, 2025 Long Life Assemblies Long-Term Reliability Tests For assemblies requiring 20+ years of life (utility metering, aerospace, medical), what long-term reliability tests are essential? ... S.L. Dec 3, 2025 Failures from User-Induced Mechanical Stress vs. Latent Manufacturing Defects How can you differentiate field failures caused by user-induced mechanical stress from latent manufacturing defects? ... S.R. Dec 3, 2025 Copper-Trace Discoloration After Reflow - Overheating vs. Cosmetic How do you determine whether copper-trace discoloration after reflow indicates overheating or is simply cosmetic? ... W.N. Dec 3, 2025 Insufficient Thermal Vias When MOSFET's Overheat When power MOSFETs overheat due to insufficient thermal vias, how can you retrofit additional dissipation without redesigning the ... G.R. Dec 3, 2025 Evaluating Where Vibration Damage is Originating From What are the best methods for evaluating whether vibration damage is originating from component leads, solder joints, or ... O.S. Dec 3, 2025 Addressing Creeping Corrosion on Exposed Metal Surfaces How do you address creeping corrosion on exposed metal surfaces in assemblies deployed in coastal or high-salt environments? ... F.R. Dec 3, 2025 Isolating the Cuase of Board Failures at High Humidity When a board exhibits intermittent failures only at high humidity, what diagnostic methods help isolate the root cause? ... S.T. Dec 3, 2025 When to Switch to Underfill for BGAs How do you determine whether repeated thermal shock cycles in the field would require switching to underfill for ... B.U. Dec 3, 2025 Evaluate PCB Susceptibility to Conductive Anodic Filament What’s the most reliable way to evaluate PCB susceptibility to conductive anodic filament (CAF) growth before final assembly? ... B.D. Dec 3, 2025 Predicting Solder Fatigue Life in Rapide Temperature Swings For assemblies exposed to rapid temperature swings (e.g., EVs, aerospace), how do you predict solder fatigue life before ... P.B. |
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