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    題名: A method using V-grooves to monitor the thickness of silicon membrane with m resolution
    作者: Chang, Pei-zen;楊龍杰;Yang, Lung-jieh
    貢獻者: 淡江大學機械與機電工程學系
    日期: 1998-09
    上傳時間: 2010-03-26 20:06:11 (UTC+8)
    出版者: Institute of Physics (IOP)
    摘要: This article presents a method capable of easily identifying the membrane thickness of micro-sensors by a V-groove depth ruler that has been made in advance on silicon wafers before sensor fabrication. The proposed method not only provides a viable alternative to other etch-stop techniques, but can also be used as an in situ tool for depth or thickness monitoring with micrometer resolution. Without p+ diffusion or an n-epitaxial layer on silicon substrates, the batch processing capability of silicon piezoresisitve micro-sensors can be preserved with V-grooves. Furthermore, the method proposed herein could also calibrate the etching rate of anisotropic etching solutions, check the uniformity of pressure sensors and offer guidelines on how to further improve the batch process of silicon bulk micro-machining. Moreover, a revised shape of V-groove depth ruler with self-alignment capability is also proposed herein.
    關聯: Journal of micromechanics and microengineering 8(3), pp.182-187
    DOI: 10.1088/0960-1317/8/3/002
    顯示於類別:[機械與機電工程學系暨研究所] 期刊論文

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