Review and Mechanism of the Thickness Effect of Solid Dielectrics
Liang Zhao, Chun Liang Liu
Abstract
The thickness effect of solid dielectrics means the relation between the electric breakdown strength (EBD) and the dielectric thickness (d). By reviewing different types of expressions of EBD on d, it is found that the minus power relation (EBD = E1d−a) is supported by plenty of experimental results. The physical mechanism responsible for the minus power relation of the thickness effect is reviewed and improved. In addition, it is found that the physical meaning of the power exponent a is approximately the relative standard error of the EBD distributions in perspective of the Weibull distribution. In the end, the factors influencing the power exponent a are discussed.
Topics & Concepts
Weibull distributionExponentDielectricMechanism (biology)Materials sciencePower (physics)Perspective (graphical)Statistical physicsThermodynamicsCondensed matter physicsMathematicsPhysicsStatisticsGeometryOptoelectronicsQuantum mechanicsPhilosophyLinguisticsHigh voltage insulation and dielectric phenomenaPower Transformer Diagnostics and InsulationElectrostatic Discharge in Electronics