Modelling Non Uniform out of Plane Dielectric Constant Frequency Dispersion in PAM4 Substrates
Integrating z-axis dielectric dispersion with resin distribution data prevents impedance mismatches and vertical eye closure in 112G PAM4 channels.
Split Post Cavity Resonance Corrections for Anisotropic Substrate Core Permittivity
Split post cavity resonance measures in-plane substrate permittivity; z-axis core corrections prevent multi-ohm stripline impedance errors on woven glass panels.
Isotropic versus Anisotropic Dielectric Models in Packaging Substrates
Anisotropic dielectric tensor modeling eliminates up to 8 ohm trace impedance errors and timing skew in high speed package substrates compared to isotropic models.
Frequency Dependent Dielectric Anisotropy Modeling for Next Generation Heterogeneous Synthetic Quartz Reinforced Printed Substrates
Accurate millimeter-wave substrate modeling demands 3D tensorial permittivity and causal frequency dispersion to prevent impedance and differential skew errors.
Z Axis Permittivity Variations in Standard High Speed Multilayer Stackups
Out-of-plane permittivity in glass-reinforced multilayer stackups runs lower than datasheet figures, requiring Z-axis test methods to hold impedance.
Fundamentals of Directional Dielectric Permittivity in Multilayer Circuit Laminates
Directional dielectric permittivity variance in multilayer laminates requires evaluating in-plane and out-of-plane Dk tensors to prevent impedance errors.