| 저온소결을 통한 초고용량 MLCC 개발 |
| 손성범, 김효섭, 송순모, 김영태, 허강헌1 |
삼성전기 LCR 사업부 재료개발그룹
1삼성전기 LCR 사업부 LCR개발팀 |
| Development of Ultra-high Capacitance MLCC through Low Temperature Sintering |
| Sung-Bum Sohn, Hyo-Sub Kim, Soon-Mo Song, Young-Tae Kim, Kang-Heon Hur1 |
Material Development Group, LCR Division, Samsung Electro-Mechanics
1LCR Development Team, LCR Division, Samsung Electro-Mechanics |
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| ABSTRACT |
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It is necessary to minimize the thickness of Ni inner electrode layer and to improve the coverage of inner electrode, for the purpose of developing the ultra high-capacity multi layered ceramic capacitor (MLCC). Thus, low temperature sintering of dielectric $BaTiO_3$ ceramic should be precedently investigated. In this work, the relationship between dielectric properties of MLCC and batch condition such as mixing and milling methods was investigated in the $BaTiO_3$(BT)-Dy-Mg-Ba system with borosilicate glass as a sintering agent. In addition, several chip properties of MLCC manufactured by low temperature sintering were compared with conventionally manufactured MLCC. It was found that low temperature sintered MLCC showed better DC-bias property and lower aging rate. It was also confirmed that the thickness of Ni inner electrode layer became thinner and the coverage of inner electrode was improved through low temperature sintering. |
| Key words:
Ultra high capacitance MLCC, $BaTiO_3$, Low temperature sintering |
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