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KCI Accredited Journals KCI 등재지
KCI Impact Factor 0.54
Journal of the Microelectronics and Packaging Society 2019;26(2):9-14. Published online: Sep, 20, 2019
DOI : 10.6117/kmeps.2019.26.2.009
The newly discovered properties of periodic nanoscale patterns have increasingly sparked research interests in various fields. Along this direction, it is worth mentioning that there had been rare studies conducted on interference exposure, a method of creating periodic patterns. Additionally, these few studies seemed to validate the existence of only exact quadrangle shapes and dot patterns. This study asserted the formation of wavy patterns associated to using multiple exposures of the ratio of the first exposure intensity to the second exposure intensity. Such patterns were designed and constructed herein via overlapping of two Gaussian beams relative to certain rotation angles, and with a submicron structure fabricated based on a 360-nm continuous-wave laser. Results confirmed that the proposed double exposure laser interference lithography is able to create circular, elliptical and wavy patterns with no need for complex optical components.
Keywords Laser Interference Lithography, Multiple Exposure, Wave Pattern, Regular Submicron Pattern, Gaussian Beam