Hardware Podcasts

Talking Signal Integrity & PCB Laminates w/ Bert Simonovich

OnTrack · 4 Jun 2024 · 57m · Episode 269

What this episode covers

Bert Simonovich, founder of Lansim Enterprises, explains how dielectric anisotropy in PCB laminates affects signal integrity modeling for high-speed designs like 112 Gbps systems. He details the difference between in-plane and out-of-plane dielectric constants (DK) caused by glass weave and resin content, and describes a heuristic method to calculate effective DK values for transmission lines and vias. Simonovich also discusses the impact of copper roughness and pressed thickness on impedance accuracy, emphasizing the need for validation through test structures.

Most relevant to

established companies

Topics

Mentioned

Companies
Lansim Enterprises, Isola, Rogers
Tools
IPC TM 650, HFS

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