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http://dx.doi.org/10.3795/KSME-A.2014.38.1.051

Replication Characteristics of Micropatterns According to Mold Temperature in Ultrasonic Imprinting  

Min, Kyeong Bin (Dept. of Mechanical and System Design Engineering, Seoul Nat'l Univ. of Science and Technology)
Park, Jong Han (Dept. of Mechanical and System Design Engineering, Seoul Nat'l Univ. of Science and Technology)
Park, Chang Yong (Dept. of Mechanical and System Design Engineering, Seoul Nat'l Univ. of Science and Technology)
Park, Keun (Dept. of Mechanical and System Design Engineering, Seoul Nat'l Univ. of Science and Technology)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.38, no.1, 2014 , pp. 51-57 More about this Journal
Abstract
Ultrasonic imprinting is a novel process for replicating micropatterns on thermoplastic polymer substrates with low energy consumption and short cycle time. The polymer substrate is softened by the frictional heat and repetitive deformation energy under ultrasonic excitation; thus, a number of micropatterns are replicated on the softened polymer substrate. In the present work, the effect of mold temperature on the replication characteristics of ultrasonic imprinting is investigated. The temperature change in the patterned region is measured by varying the mold temperature. Numerical simulation is then performed for investigating pattern replication characteristics under various mold temperatures. In addition, pattern replication ratio and uniformity are compared through various experimental measurements. Through the results of these comparisons, it is found that the mold temperature has a significant positive effect on the replication characteristics of ultrasonic imprinting.
Keywords
Ultrasonic Imprinting; Micro Pattern; Mold Temperature;
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Times Cited By KSCI : 2  (Citation Analysis)
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