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Thermomechanical Stresses in Copper Interconnect/Low-κ Dielectric Systems

Published online by Cambridge University Press:  17 March 2011

Y.-L. Shen
Affiliation:
Department of Mechanical Engineering, University of New Mexico Albuquerque, NM 87131, U.S.A
E. S. Ege
Affiliation:
Department of Mechanical Engineering, University of New Mexico Albuquerque, NM 87131, U.S.A
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Abstract

Numerical simulations of thermal stresses in copper interconnect and low-κ dielectric systems are carried out. The analyses include two- and three-dimensional finite element modeling of the interconnect structure. Various combinations of metal, oxide and polymer-based low-κ dielectric schemes are considered in the simulation. The evolution of stresses and deformation pattern in copper, barrier layers, and the dielectrics are critically assessed.

Type
Research Article
Copyright
Copyright © Materials Research Society 2004

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