Title :
RuO2 powder preparation and electrical properties in thick film resistors
Author :
Yi, Kang-Myung ; Lee, Ki-Woong ; Chung, Kyung-Won ; Um, Woo-Sik ; Lee, Hee-Soo ; Song, Jun-Kwang ; Lee, In-Shik
Author_Institution :
R&D Lab., Daejoo Fine Chem. Co. Ltd., South Korea
Abstract :
The powder properties of RuO2 varied with preparation conditions (kind of washing agent, amount of washing agent and calcination temperature). The electrical properties of RuO2 powder thick film resistors (TFRs) were studied. The specific surface area and the resistivity and TCR of TFRs varied greatly with different washing agents. The crystallite size and specific surface area variation with calcination temperature show different characteristics to washing conditions. The resistivity of TFRs decreases and TCR becomes more positive with decreasing crystallite size. TFRs having conductive powder of higher specific surface area at the same crystallite size show lower resistivity and higher TCR values
Keywords :
ceramics; electrical resistivity; powder technology; ruthenium compounds; thick film circuits; thick film resistors; RuO2; RuO2 thick film resistors; TCR; calcination temperature; crystallite size; electrical properties; powder preparation; resistivity; specific surface area; washing agent; Calcination; Chemical technology; Conductivity; Crystallization; Glass; Materials testing; Powders; Resistors; Temperature; Thick films;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1997., Proceedings of the 5th International Conference on
Conference_Location :
Seoul
Print_ISBN :
0-7803-2651-2
DOI :
10.1109/ICPADM.1997.616653
