Crosstalk in VLSI Interconnects

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Electromagnetic coupling

Electric field coupling (also called capacitive coupling) occurs when energy is coupled from one circuit to another through an electric field

Two circuits above a signal return plane.

Magnetic field coupling (also called inductive coupling) occurs when energy is coupled from one circuit to another through a magnetic field

Two circuits above a signal return plane

For instance

  • magnetic coupling between multiple inductors
  • capacitive coupling between multiple transmission lines

displacement current

A. Sheikholeslami, "Current Without Electrons [Circuit Intuitions]," in IEEE Solid-State Circuits Magazine, vol. 17, no. 4, pp. 8-10, Fall 2025

image-20260117100449115

displacement current & conduction current

reference

信号完整性揭秘:于博士SI设计手记

Bogatin, E. (2018). Signal and power integrity, simplified. Prentice Hall. [pdf]