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Four kinds of metal, such as aluminum, copper, indium and tin, thinˆlms were deposited onto polyester (PET) substrate by a conventional vacuum evaporator and evaluated their tensile and adhesion properties. The tensile property was estimated by observations of micro-cracks of the thinˆlms due to the tensile test at 150°C. The tensile property of the metal thinˆlms seems to relate with Brinell hardness and thickness of the thinˆlm. The adhesion property of these metal thinˆlms was estimated by measuring the pull strength. Aluminum thinˆlm showed highest pull strength of all the thinˆlms, and the pull strength increased with increase of the thickness.

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