摘要 |
A process for measuring the thickness of an insulating material. The process includes providing a device used to measure capacitance, and electrically connecting the capacitance measuring device to a heat sink and an electrical, heat-generating component. The thickness of the insulating material is determined by measuring the capacitance of the insulating material according to the formula; <?in-line-formulae description="In-line Formulae" end="lead"?>B=epsilon<SUB>r</SUB>epsilon<SUB>0</SUB>A/C, <?in-line-formulae description="In-line Formulae" end="tail"?> where B is the thickness of the insulating material, C is the capacitance, A is the area of the heat generating component, epsilon<SUB>0 </SUB>is the permittivity of free space and epsilon<SUB>r </SUB>is the relative dielectric constant of the insulating material.
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