Modeling of large area hot embossing

TL;DR

This paper presents initial simulation results for large-area hot embossing, combining theoretical modeling and experimental validation to improve nanostructure replication in microengineering.

Contribution

It introduces a new simulation approach for large-area hot embossing, aiding the adaptation of the process to industrial standards.

Findings

Successful modeling of large-area replication

First experimental validation of simulation results

Enhanced understanding of process parameters

Abstract

Today, hot embossing and injection molding belong to the established plastic molding processes in microengineering. Based on experimental findings, a variety of microstructures have been replicated so far using the processes. However, with increasing requirements regarding the embossing surface and the simultaneous decrease of the structure size down into the nanorange, increasing know-how is needed to adapt hot embossing to industrial standards. To reach this objective, a German-Canadian cooperation project has been launched to study hot embossing theoretically by a process simulation and experimentally. The present publication shall report about the first results of the simulation - the modeling and simulation of large area replication based on an eight inch microstructured mold.