Microstructure and adhesion of as-deposited and annealed Cu/Ti films on polyimide
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Megan J. Cordill
Abstract
The ability to measure the adhesion energy of metal thin films on polymer substrates is important for the design of reliable flexible electronic devices. One technique is to create well-defined areas of delamination (buckles) as a consequence of lateral compressive stresses induced by tensile straining of the film–substrate system. The adhesion energy is calculated from the buckle dimensions. In order to improve the adhesion between the metal film and polymer substrate, thin adhesion layers can be incorporated. However, interdiffusion and reactions can occur between the adhesion layer and the metal film when subjected to elevated temperatures. This is detrimental for the interfacial adhesion, as will be discussed for Cu films on polyimide with a Ti interlayer subjected to annealing at 350°C.
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© 2011, Carl Hanser Verlag, München
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Articles in the same Issue
- Original Contributions
- Microstructure and adhesion of as-deposited and annealed Cu/Ti films on polyimide
- On the origin of inhomogeneous stress and strain distributions in single-crystalline metallic nanoparticles
- Contents
- Contents
- Editorial
- Editorial June 2011
- IJMR's most downloaded papers
- Original Contributions
- An excursion into the design space of biomimetic architectured biphasic actuators
- Strategies for fracture toughness, strength and reliability optimisation of ceramic-ceramic laminates
- Fracture statistics of brittle materials at micro- and nano-scales
- Martensitic phase transformations of nanocrystalline NiTi shape memory alloys processed by repeated cold rolling
- Variational modeling of shape memory alloys – an overview
- Phase-field approach to martensitic phase transformations: Effect of martensite–martensite interface energy
- Modelling of diffusive and massive phase transformations in binary systems – thick interface parametric model
- On the strength of grain and phase boundaries in ferritic-martensitic dual-phase steels
- A micro-level strain analysis of a high-strength dual-phase steel
- Thermodynamic description of niobium-rich γ-TiAl alloys
- Phase transition and ordering behavior of ternary Ti–Al–Mo alloys using in-situ neutron diffraction
- Microstructure evolution and mechanical properties of an intermetallic Ti-43.5Al-4Nb-1Mo-0.1B alloy after ageing below the eutectoid temperature
- Investigation of Cu precipitation in bcc-Fe – Comparison of numerical analysis with experiment
- Modeling interfacial effects on the thermal conduction behavior of short fiber reinforced composites
- Electronic origin of structure and mechanical properties in Y and Nb alloyed Ti–Al–N thin films
- DGM News
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