Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Improvement of plating uniformity for copper patterns of IC substrate with multi-physics coupling simulation

Improvement of plating uniformity for copper patterns of IC substrate with multi-physics coupling... Optimized plating conditions, included proper designs of insulating shield (IS), auxiliary cathode (AC) and different patterns, contribute to the uniformity enhancement of copper deposition.Design/methodology/approachPlating experiments were implemented in vertical continuous plating (VCP) line for manufacturing in different conditions. Multiphysics coupling simulation was brought to investigate and predict the plating uniformity improvement of copper pattern. In addition, the numerical model was based on VCP to approach the practical application.FindingsWith disproportionate current distribution, different plating pattern design formed diverse copper thickness distribution (CTD). IS and AC improved plating uniformity of copper pattern because of current redistribution. Moreover, optimized plating condition for effectively depositing more uniformed plating copper layer in varied pattern designs were derived by simulation and verified by plating experiment.Originality/valueThe comparison between experiment and simulation revealed that multiphysics coupling is an efficient, reliable and of course environment-friendly tool to perform research on the uniformity of pattern plating in manufacturing. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Circuit World Emerald Publishing

Improvement of plating uniformity for copper patterns of IC substrate with multi-physics coupling simulation

Loading next page...
 
/lp/emerald-publishing/improvement-of-plating-uniformity-for-copper-patterns-of-ic-substrate-bzCtclACEw

References (43)

Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
0305-6120
DOI
10.1108/cw-12-2017-0078
Publisher site
See Article on Publisher Site

Abstract

Optimized plating conditions, included proper designs of insulating shield (IS), auxiliary cathode (AC) and different patterns, contribute to the uniformity enhancement of copper deposition.Design/methodology/approachPlating experiments were implemented in vertical continuous plating (VCP) line for manufacturing in different conditions. Multiphysics coupling simulation was brought to investigate and predict the plating uniformity improvement of copper pattern. In addition, the numerical model was based on VCP to approach the practical application.FindingsWith disproportionate current distribution, different plating pattern design formed diverse copper thickness distribution (CTD). IS and AC improved plating uniformity of copper pattern because of current redistribution. Moreover, optimized plating condition for effectively depositing more uniformed plating copper layer in varied pattern designs were derived by simulation and verified by plating experiment.Originality/valueThe comparison between experiment and simulation revealed that multiphysics coupling is an efficient, reliable and of course environment-friendly tool to perform research on the uniformity of pattern plating in manufacturing.

Journal

Circuit WorldEmerald Publishing

Published: Jul 16, 2018

Keywords: IC substrate; Current density distribution; Insulating shield; Multiphysics coupling simulation; Pattern design; Plating uniformity improvement

There are no references for this article.