Domestic Conference 2015.04: Kim, S. K., Lee, P. Y., Kim, B. H., Cho, Y. H., Fabrication of Micro Column Array by Micro EDM, KSPE Annual Spring Conference, pp. 29, 2015
2015.04: Jung, S. M. Kim, B. H.,Lee, P. Y., Polishing of Quartz by CO2 laser, KSMTE Annual Spring Conference, pp. 226, 2015