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Applied Physics Letters
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Adhesion and deformation study of metal/polymer structures by a stretch deformation method

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Abstract

A stretch deformation method has been developed for quantitative study of adhesion and deformation of metal/polymer structures. The adhesion energy is directly measured from the difference in the load versus elongation curves between film/substrate and substrate structures. This method has been applied to study structures formed with Cu, Cr, and Cu/Cr deposited on pyromellitic dianhydride-oxydianiline polyimide. The importance of crack formation in the metal layer for initiating interfacial delamination is demonstrated.

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Applied Physics Letters

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