Abstract
Summary Light scattering is a non-contact technique which can be used for characterizing the topography of smooth reflecting surfaces. A proposed technique which incorporates a modified Total Integrated Scattering (TIS) model for surface roughness measurement of semi-conductor wafers has been developed. The technique employs a low power He-Ne laser and incorporates conventional optical components to record surface roughness in the nanometer range ( R a
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More From: Optik - International Journal for Light and Electron Optics
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