Case 1750 ยท Public preview

Internal Plate Distortion Can Short an MLCC Without a Flex Crack

Several multilayer ceramic capacitors exhibited low-resistance electrical leakage or short circuits after assembly.

Electrical isolationOptical microscopySEM microsectioningEDSInternal-structure comparison
Preview image for Case 1750

What the evidence preview establishes

The capacitors most likely shorted internally through fabrication anomalies that included distorted electrode plates, voided nickel conductors, and dielectric irregularities between adjacent plates.

Why this case matters

A shorted MLCC without a flex crack still requires internal structural review. Examine plate planarity, conductor continuity, dielectric spacing, and repeated anomalies before attributing the failure to board handling.

Full evidence reserved for MEMBER and STOREThe complete case includes the evidence sequence, four interpreted figures, alternative explanations, limitations, and practical application guidance.