RuO 2 -유리 복합분말을 이용하여 제조된 후막 저항의 전기적 특성 연구

• Published in: 한국표면공학회지 Vol. 50; no. 5; pp. 301 - 307
• Main Authors: 김민식, 류성수, Kim, Min-Sik, Ryu, Sung-Soo
• Format: Journal Article
• Language: Korean
• Published: 2017
• Subjects: Thick-film resistor; Oxide glass composite; RuO_2; Sheet resistance
• ISSN: 1225-8024

The purpose of this study is to investigate the electrical properties of thick-film resistor (TFR) prepared from $CaO-ZnO-B_2O_3-Al_2O_3-SiO_2$ (CZBAS) glass containing $RuO_2$ particles. $RuO_2$-glass composite powder was made by mixing and melting oxide powders of constituents. For comparison, $RuO_2$ powder was simply mixed with glass powder. $RuO_2$-40wt% glass composite and mixture were dispersed in an organic binder to obtain printable resistor paste and then thick-film was formed by screen printing, followed by sintering at the range between $750^{\circ}C$ and $900^{\circ}C$ for 10 min with a heating rate of $50^{\circ}C/min$ in an ambient atmosphere. $RuO_2$-glass composite sample showed much higher resistance compared to the simple mixed sample. This could be attributed to the difference in conducting mechanism. After sintering at $850^{\circ}C$, temperature coefficient of resistance of composite sample was lower than that of simple-mixed sample. TFR with dense and homogeneous microstructure could be obtained by using $RuO_2$-glass composite powder.