Adhesion and Cohesion Analysis of ArF/SOR Resist Patterns with Microtip of Atomic Force Microscope(AFM).

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  • Kawai Akira
    Department of Electrical Engineering, Nagaoka University of Technology
  • Moriike Norio
    Department of Electrical Engineering, Nagaoka University of Technology

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説明

By directly applying load to a top corner of dot resist pattern with a microcantilever tip, a dot pattern adhering on a substrate can be deformed and collapsed easily. The elastic and adhesion properties of a dot resist pattern can be analyzed quantitatively. The SOR (synchrotron orbital radiation) resist patterns ranging from 84 to 364nm diameter and the ArF resist pattern ranging from 141 to 405nm diameter are used for the investigation. In combination with an analysis of the double spring model, Young's modulus of the SOR resist pattern can be determined to be 1.2GPa. The applying load required for pattern collapse decreases with decreasing the pattern diameter, and it is proportional to the cross-sectional area of the resist pattern. This technique gives useful information to the field of structural designing of resist material.

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