Materials Research Science and Engineering Center


Date of this Version



Published in Mater. Res. Soc. Symp. Proc. Vol. 921. Copyright © 2006 Materials Research Society. Used by permission.


Thin film contraction under external mechanical stress can be used to miniaturize size and increase density of patterned features on top. Nonlinear Finite Element Analysis is used to provide guidance on this contraction process. It was found that the substrate contraction causes stress accumulation along interfaces between protruded features and substrate. These stress accumulation complexes the control of profile changes on patterned features and suggest a design of patterned features arranged beyond a critical distance to avoid cross-interference.