Capacitive Coupling Mitigation for TSV-based 3D ICs

TSV-to-TSV capacitive coupling has large disruptive effects on timing requirements of the circuit. The latency effect of TSV-to-TSV capacitive coupling for different characteristics of a TSV using circuit-level model is presented in this article. Two coding approaches are proposed to mitigate capacitive parasitic effects by adjusting the current flow pattern for any given n × n mesh of TSV arrangement to reduce the number of 8C/7C parasitic capacitance. The experimental results proves the efficacy of the proposed coding methods.