In this article, thermal imprint process for replication of high-quality microstructures on the surface of polymer is investigated. Vibrations has been previously employed as an additional measure to enhance the replicability of microstructure into the pre-heated polymer. On the other hand, polymer behavior under the action of vibrations is not sufﬁciently studied. In this article, thermal microstructure replication is modeled and simulated by applying vibratory assisted thermal imprint to provide a better comprehension of the replication process peculiarities that would lead to improvement of the replication process itself. Different aspects of the process are analyzed: depth of imprinted pattern, pressure, traction force, residual ﬁeld of plastic deformations and stresses. Numerical simulation results are veriﬁed experimentally. The results of the research shows that process assistance with vibratory excitation results in higher imprint depth compared with the specimens, imprinted under the identical process conditions without vibratory excitation. 1 Introduction emboss the microstructure. Finally, the master microstructure with the polymer are quenched and Precise microstructures are often applied in sensor, laser demolded (Giboz et al. 2007). The main shortcomings of and optic technologies. Therefore, novel and efﬁcient the process are possible damages to the replicated microstructure manufacturing technologies must be devel- microstructure.
Microsystem Technologies – Springer Journals
Published: May 31, 2018
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