Affiliation: | (1) Dept. of Ceramic Eng., Yonsei Univ., 134 Shinchon-dong, Sudaemoon-ku, 120-749 Seoul, Korea;(2) Dept, of Chemistry, Sang-Ji Univ., 41 Wosan-dong, 220-130 Wonju, Korea;(3) Semiconductor Tech. Div., ETRL, Yusung, P.O. Box 106, 305-600 Taejon, Korea |