The Origin and Control of Residual Stresses in Nanocrystalline Thin Films: The Roles of Stress Relaxation During Growth


Carl V. Thompson, Jeffrey S. Leib, Reiner Mönig, and Andrew Takahashi
Dept. of Materials Science and Engineering
Microsystems Technology Laboratory
MIT

Outline:


  • Overview of phenomenology
  • Stress relaxation during coalescence
  • Post-coalescence relaxation

Formation of a Polycrystalline Film
 
Stress vs. Thickness for Films Deposited via Evaporative Deposition

Measure deflection of cantilever tip

or measure substrate curvature                               




 
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