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15 November 2010 Advanced nanocomposite lens materials for wafer-level optics
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Solvent-free, photo-curable, transparent, colorless and haze-free liquid optical polymer materials are primary choices for lenses in wafer level optics. Advanced lens materials are being explored for quality optical, thermal and mechanical properties. Such materials are desired to pass thermal reliability tests, survive stack-reflow processes, have low coefficient of thermal expansion, have high refractive index and extreme dispersion, possess low stress and shrinkage and etc. Novel nanocomposite materials based on 1) finely constructed core-shell nanoparticles with photopolymerizable surfactant crosslink function groups and 2) compatible polymer matrices are promising candidates for imaging and sensing systems with breakthrough performance.
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Haiyong Gan "Advanced nanocomposite lens materials for wafer-level optics", Proc. SPIE 7847, Optoelectronic Devices and Integration III, 784703 (15 November 2010);

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