Next Article in Journal
Contactless Mechanical Components: Gears, Torque Limiters and Bearings
Next Article in Special Issue
A Cyber Physical Interface for Automation Systems—Methodology and Examples
Previous Article in Journal
Residual Generator Fuzzy Identification for Wind TurbineBenchmark Fault Diagnosis
Previous Article in Special Issue
Performance Evaluation of Bidding-Based Multi-Agent Scheduling Algorithms for Manufacturing Systems
Open AccessArticle

Extrusion Roller Imprinting with a Variotherm Belt Mold

1
Department of Mechanical & Industrial Engineering, University of Massachusetts Amherst, Amherst, MA 01003, USA
2
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
*
Author to whom correspondence should be addressed.
Machines 2014, 2(4), 299-311; https://doi.org/10.3390/machines2040299
Received: 28 May 2014 / Revised: 13 October 2014 / Accepted: 21 November 2014 / Published: 18 December 2014
(This article belongs to the Special Issue Advances and Challenges in Manufacturing Automation)
Although many precision fabrication techniques have demonstrated the ability to produce microstructures and micro-devices with sub 100 nm accuracy, we are yet to see a scalable manufacturing process for large-area production. One promising solution to scalable micro- and nanofabrication is thermal roller imprinting. However, existing investigations on thermal roller imprinting revealed poor pattern transfer fidelity, especially for high aspect ratio features. The standard roller imprinting process suffers from the lack of an effective holding and cooling stage so that the adverse effects from the viscoelastic nature of polymers are not managed. To rectify this problem and further improve the production rate, a new extrusion roller imprinting process with a variotherm belt mold is designed, and its prototype was established at a laboratory scale. The process testing results demonstrate that a 30 μm sawtooth pattern can be faithfully transferred to extruded polyethylene film at take-up speeds higher than 10 m/min. The results are promising in that microfeatures or even nanofeatures may be successfully replicated by a robust and scalable industrial process suitable for large-area, continuous production. View Full-Text
Keywords: hot embossing; roller imprinting; nanoimprinting; microfabrication; nanofabrication hot embossing; roller imprinting; nanoimprinting; microfabrication; nanofabrication
Show Figures

Figure 1

MDPI and ACS Style

Frenkel, R.; Kim, B.; Yao, D. Extrusion Roller Imprinting with a Variotherm Belt Mold. Machines 2014, 2, 299-311.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop