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[Analysis Case] Heating SSRM Evaluation of Multilayer Ceramic Capacitors (MLCC)

Visualization of conduction paths (insulation degradation areas) within the dielectric.

Multilayer Ceramic Capacitors (MLCC) are capacitors that have a laminated structure consisting of internal electrodes (metal) / dielectric layers (insulator) / internal electrodes (metal). One of the issues with MLCCs is the insulation degradation (lower resistance) of the dielectric layer under high electric fields and high temperatures, which can lead to short circuits between the electrodes. Visualizing the low-resistance conductive paths formed within the dielectric layer is an important clue to understanding the insulation degradation phenomenon. This document presents a case where the insulation degradation of dielectric materials due to temperature changes was visualized by combining SSRM measurement (high electric field) and heating mechanisms (high temperature). Measurement method: SSRM (Scanning Spreading Resistance Microscopy) Product fields: Dielectric materials, capacitors, MLCC Analysis objectives: Resistance value distribution, current distribution, insulation degradation evaluation For more details, please download the document or contact us.