Browse > Article
http://dx.doi.org/10.5228/KSTP.2012.21.2.119

Effect of Material Flow Direction on the Replication Characteristics of the Ultrasonic Patterning Process  

Seo, Y.S. (서울과학기술대학교 NID 융합기술대학원)
Lee, K.Y. (서울과학기술대학교 NID 융합기술대학원)
Park, K. (서울과학기술대학교 기계시스템디자인공학과)
Publication Information
Transactions of Materials Processing / v.21, no.2, 2012 , pp. 119-125 More about this Journal
Abstract
The present study addresses a direct patterning process on a plastic film using ultrasonic vibration energy. In this process, a tool horn containing micro-patterns is attached to an ultrasonic power supply, and is used with ultrasonic vibration to replicate micro-patterns on the surface of a plastic film. To improve the replication characteristics of the micro-patterns, the effect of the die shape of the ultrasonic patterning process was investigated with respect to the flow direction control. Finite element analyses were performed to predict the flow characteristics of the polymer with variations in die design parameters. Experiments were conducted using the optimally-designed die, from which it was possible to attain much improved pattern replication.
Keywords
Ultrasonic Vibration; Ultrasonic Patterning; Micro-pattern; Tool Horn; Finite Element Analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 R. C. Progelhof, J. L. Throne, 1993, Polymer Engineering Principles: Properties, Processes, Test for Designs, Hanser Gardner Publications, New York.
2 C. A. Mirkin, J. A. Rogers, 2001, Emerging Methods for Micro-and Nanofabrication, MRS Bull., Vol. 26, No. 7, pp. 506-508.   DOI   ScienceOn
3 J. H. Kim, Y. S. Kim, 2010, The Review for Various Mold Fabrication toward Economical Imprint Lithography, J. Kor. Vac. Soc., Vol. 19, No. 2, pp. 96-104.   DOI
4 C. L. Chen, F. Jen, 2004, Fabrication of Polymer Splitter by Micro Hot Embossing Technique, Tamkang J. Sci. Eng., Vol. 7, No. 1, pp. 5-9.
5 J. Becker, U. Heim, 2000, Hot Embossing as a Method for the Fabrication of Polymer High Aspect Ratio Structures, Sens. Actuators A, Vol. 83, No. 1-3, pp. 130-135.   DOI   ScienceOn
6 D. H. Sohn, Y. S. Seo, K. Park, 2010, Three-dimensional Finite Element Analysis of the Induction Heating Procedure of an Injection Mold, Trans. Mater. Proc., Vol. 19, No. 3, pp. 152-159.   DOI
7 S. J. Liu, Y. T. Dung, 2005, Hot Embossing Precise Structure onto Plastic Plates by Ultrasonic Vibration, Polym. Eng. Sci., Vol. 45, No.7, pp. 1282-1287.
8 H. Mekaru, H. Goto, M. Takahashi, 2007, Development of Ultrasonic Micro Hot Embossing Technology, Microelectron. Eng., Vol. 84, No.5-8, pp. 1282-1287.   DOI   ScienceOn
9 J. Tsujino, M. Hongoh, R. Tanaka, R. Onoguchi, T. Ueoka, 2002, Ultrasonic Plastic Welding Using Fundamental and Higher Resonance Frequencies, Ultrason., Vol. 40, No. 1-8, pp. 375-378.   DOI   ScienceOn
10 Y. S. Seo, K. Park, 2010, Finite Element Analysis of an Ultrasonic Tool Horn for Pattern Forming, J. Kor. Soc. Precis. Eng., Vol. 28, No. 3, pp. 363-369.
11 Y. S. Seo, K. Park, 2011, Direct Patterning of Micro-Features on a Polymer Substrate Using Ultrasonic Vibration, Microsys. Technol(accepted for publication).