Metallic Layer Reflectance Analysis Using Design of Experiment

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In this work, a Full Factorial Experimentation technique, Design of Experiment (DOE) was developed and used to control the parameter of RIE (Reactive Ion Etching) process on a silicon wafer with aluminium layer. The objective of this work is to examine the Reactive Ion Etching (RIE) process on aluminium with different parameter, which are temperature, vacuum, RF (Radio Frequency) power and gas flow. Then, AFM (Atomic Force Microscope) and Lambda 950 spectrometer are used to analyse the grain size and light reflectance on the test specimen after RIE process. From the result, all four parameters of RIE were give an effect on grain size and surface reflectance on the test specimen. The parameter of gas flow is the most influence factor for grain size and surface reflectance in RIE process for aluminium layer compared to other parameters in this work.

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461-464

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February 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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