Conal E. Murray, I.C. Noyan
Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
Strain distributions within a silicon-on-insulator (SOI) layer induced by overlying compressively stressed Si3 N4 features were measured using x-ray microbeam diffraction. A comparison of analytical and numerical mechanical models of the depth-averaged strain distributions to the measured strain profiles in the SOI layer indicated a blanket film stress of -2.5 GPa in the Si3 N4 features. A two-dimensional boundary element model, implemented to analyze thin film/substrate systems, reproduced the observed strain distributions better than an edge-force formulation due to the incorporation of loading along the Si3 N4 /Si interface. © 2008 American Institute of Physics.
Conal E. Murray, I.C. Noyan
Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
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