Geometrical integrity of microholes produced by micro-EDM

Although there are many techniques for the fabrication of micro-hole for Bio-MEMS and microfludic applications, characterization of high aspect ratio (depth/diameter) micro-hole is a critical issue among the researchers worldwide. The characteristics such as surface finish, vertical side wall, et...

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Bibliographic Details
Main Author: Ali, Mohammad Yeakub
Format: Monograph
Language:English
Published: Research Management Center, IIUM 2008
Subjects:
Online Access:http://irep.iium.edu.my/28924/
http://irep.iium.edu.my/28924/
http://irep.iium.edu.my/28924/1/098_EDW-17_2008_Full_report.pdf
Description
Summary:Although there are many techniques for the fabrication of micro-hole for Bio-MEMS and microfludic applications, characterization of high aspect ratio (depth/diameter) micro-hole is a critical issue among the researchers worldwide. The characteristics such as surface finish, vertical side wall, etc. influence the fluid flow inside the channels. This project (EDW-17) was followed by project of EDW-18, where EDM micro drilling process was developed. In this research project the high aspect ratio EDM drilled micro holes were measured and investigated. At first, an experimental process was developed to open the internal geometry of the holes and then characterized the geometrical integrity and surface texture using scanning electron microscope (SEM) and atomic force microscope (AFM).