Join Bert Simonovich at DesignCon 2024!
About Bert Simonovich
A Heuristic Approach to Assess Anisotropic Properties of Glass-Reinforced PCB Substrates. Wednesday January 31, 2024 12:15 PM Abstact: Obtaining dielectric material properties is crucial when modeling PCB transmission lines, vias or rf antennas. One critical property is the relative permittivity (εr) or dielectric constant (Dk). Using incorrect Dk values can lead to impedance miscalculations, potentially affecting the yield of PCB fabrication or the performance margins of the final product. Given that fiberglass reinforced laminates used in PCBs are anisotropic, the effective Dk can vary based on the test method used. This paper introduces a unique heuristic approach to assess anisotropic properties of glass-reinforced PCB substrates, leveraging the Dk/Df construction tables provided by copper-clad laminate suppliers.
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