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J. Korean Ceram. Soc. > Volume 50(3); 2013 > Article
Journal of the Korean Ceramic Society 2013;50(3): 238.
doi: https://doi.org/10.4191/kcers.2013.50.3.238
Pb 금속필러가 첨가된 PbO-Bi2O3-B2O3-ZnO-SiO2계 유리의 특성
최진삼, 정대용1, 신동우, 배원태
경상대학교 세라믹공학전공
1인하대학교 신소재공학부
Characteristics of the PbO-Bi2O3-B2O3-ZnO-SiO2 Glass System Doped with Pb Metal Filler
Jinsam Choi, DaeYong Jeong1, Dong Woo Shin, Won Tae Bae
Department of Ceramic Engineering, Gyeongsang National University
1School of Materials Engineering, Inha University
We investigated the effect of Pb-metal filler added to a hybrid paste(PbO-$Bi_2O_3-B_2O_3$-ZnO glass frit and Pb-powder), for joining flip-chip sat lower temperatures than normal. The glass transition temperature was detected at $250^{circ}C$ and the softening point occurred at $330^{circ}C$. As the temperature increased, the specific density decreased due to the volatility of the Pb-metal and boron component in the glass. When the glass was heat-treated at $350^{circ}C$ for 5 min, XRD results revealed a crystalline $Pb_4Bi_3B_7O_{19}$ phase that had been initiated by the addition of Pb-filler in the hybrid paste. The addition of the Pb-metal filler caused are action between the Pb-metal and glass that accelerated the formation of the liquid phase. The liquid phase that formed, promoted bonding between the flip-chip substrate sat lower temperature.
Key words: Lead glass, Pb filler, Hybrid paste, Flip chip, Bonding
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