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.
| Original language | English |
|---|---|
| Pages (from-to) | 51-57 |
| Number of pages | 7 |
| Journal | Transactions of the Korean Society of Mechanical Engineers, A |
| Volume | 38 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2014 |
Keywords
- Micro pattern
- Mold temperature
- Ultrasonic imprinting