Reliability of Fine-Pitch μm-Diameter Microvias for High-Density Interconnects

Shreya Dwarakanath, Takenori Kakutani, Daichi Okamoto, Pulugurtha Markondeya Raj, Madhavan Swaminathan, Rao R. Tummala

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Downscaling of package wiring has been the singular focus to achieve higher logic-memory interconnect density to meet next-generation needs for high-bandwidth computing. This article presents, for the first time, a systematic modeling and experimental study of sub-5- $\mu \text{m}$ -diameter microvia reliability. Geometry design considerations and build-up dielectric material properties in evaluating the microvia fatigue life are investigated. Finally, experimental thermal-cycling reliability results of sub-5- $\mu \text{m}$ -diameter microvias are correlated with the modeling results.

Original languageEnglish (US)
Article number9153015
Pages (from-to)1552-1559
Number of pages8
JournalIEEE Transactions on Components, Packaging and Manufacturing Technology
Volume10
Issue number9
DOIs
StatePublished - Sep 2020

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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