Type

Conference Proceedings

Authors

M. D. Gilchrist
David J. Browne
Nan Zhang

Subjects

Engineering

Topics
micro replication micro injection molding bulk metallic glass micro channels micro injection moulding replication quality micro nano features scale

Effect of design on the replication of micro/nano scale features by micro injection moulding (2011)

Abstract The replication of micro/nano scale features is of great interest for MEMS and Microsystems. However, theflow behaviour of melts into a micro/nano cavity is still not well understood. In this work, we used the microinjection moulding process to replicate micro/nano scale channels and ridges from a Bulk Metallic Glass (BMG)cavity insert. High density polyethylene (HDPE) was used as the moulding material. The influence of featureconfiguration, length, width, gap distance between features, location on substrate, and substrate thickness on thequality of replication was investigated. The experiments revealed that the replication of ridges, including featureedge, profile and filling distance, was sensitive to the flow direction; a critical feature length was found belowwhich the filling of features was significantly reduced. Both the feature location and the substrate thickness had aninfluence on the filling of micro/nano features while the gap distance had a negligible effect on the replication of features.
Collections Ireland -> University College Dublin -> Mechanical & Materials Engineering Research Collection
Ireland -> University College Dublin -> College of Engineering & Architecture
Ireland -> University College Dublin -> School of Mechanical and Materials Engineering

Full list of authors on original publication

M. D. Gilchrist, David J. Browne, Nan Zhang

Experts in our system

1
M. D. Gilchrist
University College Dublin
Total Publications: 172
 
2
David J. Browne
University College Dublin
Total Publications: 35
 
3
Nan Zhang
University College Dublin
Total Publications: 19