Microstrip Phase Velocity Fundamentals across Multi Layer Glass Stackups
Microstrip phase velocity depends on outer layer inhomogeneous dielectric fields, glass reinforcement architecture, copper roughness, and lamination compression.
Modified Semi Additive Process Stackup Selection Guidelines
Modified semi additive process stackups require ultra-thin copper seeds under three microns to achieve sub-twenty-micron traces with stable impedance.
Dielectric Constant Characterization Methods for High Speed Laminate Selection
Dielectric characterization methods determine in-circuit signal velocity by accounting for test fixture field structure, glass anisotropy, and copper surface roughness.
Mid Loss Laminate Selection Criteria for High Speed Circuits
Mid-loss laminates optimize high-speed signal reach between 5 and 28 Gbps by controlling dielectric loss without imposing low-loss fluoropolymer costs.