发明名称 |
METHOD FOR MANUFACTURING SRTIO3 SMD TYPE VARISTOR-CAPACITOR MULTIFUNCTIONAL DEVICE |
摘要 |
PURPOSE: A method for manufacturing a varistor-capacitor multifunctional device is provided to simultaneously obtain varistor characteristic and capacitor characteristic of a dielectric index larger than 10000 and dielectric loss less than 5%. CONSTITUTION: A SrTiO3 SMD varistor-capacitor multifunctional device is manufactured by using Sr0.9Ca0.1TiO3 as basic material powder. The basic material powder is subjected to wet milling after Nb2O5 of 0.4-0.6 mol% is added and SiO2 of 0.1-0.3 mol% and MnO of 0.1-0.3 mol% are added. Organic vehicle is added to the basic material powder after wet milling to form slurry. The slurry is molded by a tape caster to form a ceramic sheet. After cutting the ceramic sheet, internal electrodes are printed on the ceramic sheet by Ag/Pd or Ni electrodes. Three to five ceramic sheets are deposited on and on and subjected to pre-sintering at 1100°C for 1 hour. The sintered ceramic is re-oxidized in a furnace with the air at 900-1100°C.
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申请公布号 |
KR20020028279(A) |
申请公布日期 |
2002.04.17 |
申请号 |
KR20000059208 |
申请日期 |
2000.10.09 |
申请人 |
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY |
发明人 |
KIM, SEONG HO;KIM, YUN HO;PARK, JAE GWAN;PARK, JAE HWAN |
分类号 |
H01C7/115;(IPC1-7):H01C7/115 |
主分类号 |
H01C7/115 |
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