The impact of through silicon via proximity on CMOS device

Hsiu Jao*, Y. Y. Lin, Will Liao, Blacksmith Wu, Brady Huang, Lawrence Huang, Joe Huang, Steven Shih, J. P. Lin, P. S. Huang, M. Y. Tsai, C. Y. Huang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

As device scaling becomes increasingly difficult, 3D integration with through silicon via (TSV) has emerged as a viable solution for addressing the requisite bandwidth and power efficiency challenges. However, mechanical stresses induced by the TSVs must be controlled in the 3D flow in order to preserve the electrical integrity of front-end devices. Since copper filling material of the TSV could causes stresses on silicon near the TSV, the impact of TSV proximity on CMOS must be evaluated at various operation temperatures. In this paper, Cu-filled TSVs were fabricated in 'via middle' process. The TSVs-induced mechanical stresses causing carrier mobility change that result in drive current (Ion) variation. In order to obtain robust design rules (i.e. keep-out zone) and spice model for TSV applications, electrical characteristics of CMOS devices were investigated in terms of distance between TSV and CMOS device in this work.

Original languageEnglish
Title of host publication2012 7th International Microsystems, Packaging, Assembly and Circuits Technology Conference, IMPACT 2012 - Proceedings
Pages43-45
Number of pages3
DOIs
StatePublished - 2012
Event2012 7th International Microsystems, Packaging, Assembly and Circuits Technology Conference, IMPACT 2012 - Taipei, Taiwan
Duration: 24 10 201226 10 2012

Publication series

NameProceedings of Technical Papers - International Microsystems, Packaging, Assembly, and Circuits Technology Conference, IMPACT
ISSN (Print)2150-5934
ISSN (Electronic)2150-5942

Conference

Conference2012 7th International Microsystems, Packaging, Assembly and Circuits Technology Conference, IMPACT 2012
Country/TerritoryTaiwan
CityTaipei
Period24/10/1226/10/12

Fingerprint

Dive into the research topics of 'The impact of through silicon via proximity on CMOS device'. Together they form a unique fingerprint.

Cite this