Effect of Distributed Shield Insertion on Crosstalk in Inductively Coupled VLSI Interconnects

TL;DR

This paper investigates how distributed shield insertion affects crosstalk reduction in inductively coupled VLSI interconnects, comparing different shielding strategies to optimize signal integrity in advanced semiconductor technologies.

Contribution

It provides a detailed analysis of crosstalk reduction through distributed shield insertion and compares various shielding configurations in inductively coupled interconnects.

Findings

Distributed shield insertion significantly reduces crosstalk.

Adding ground taps at shield terminals further minimizes interference.

Shielding strategies improve signal integrity in high-density VLSI circuits.

Abstract

Crosstalk in VLSI interconnects is a major constrain in DSM and UDSM technology. Among various strategies followed for its minimization, shield insertion between Aggressor and Victim is one of the prominent options. This paper analyzes the extent of crosstalk in inductively coupled interconnects and minimizes the same through distributed shield insertion. Comparison is drawn between signal voltage and crosstalk voltage in three different conditions i.e. prior to shield insertion, after shield insertion and after additional ground tap insertion at shield terminal.