KR20040020048A - 세라믹 전자부품 및 그 제조방법 - Google Patents
세라믹 전자부품 및 그 제조방법 Download PDFInfo
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- KR20040020048A KR20040020048A KR10-2003-7010333A KR20037010333A KR20040020048A KR 20040020048 A KR20040020048 A KR 20040020048A KR 20037010333 A KR20037010333 A KR 20037010333A KR 20040020048 A KR20040020048 A KR 20040020048A
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Abstract
Description
Claims (13)
- 세라믹 기재와, 그 기재의 표면에 형성된 표면 도체막과, 그 표면에 인접하는 면에 형성된 측면 도체막을 구비하는 세라믹 전자부품을 제조하는 방법으로서, 이하의 공정:(a). A1, Zr, Ti, Y, Ca, Mg 및 Zn으로 이루어지는 군으로부터 선택되는 어느 하나의 원소를 구성 금속원소로 하는 1종 또는 2종 이상의 유기계 금속 화합물 또는 금속 산화물로 표면이 코팅 되어있는 Ag 또는 Ag 주체의 합금으로 이루어지는 미립자에 의해 실질적으로 구성되는 금속 분말과, 이 금속 분말을 분산시키는 유기 매질을 함유하는 제1의 도체 조성물을 사용하여, 세라믹 기재에 표면 도체막을 형성하는 공정; 및(b). Al, Zr, Ti, Y, Ca, Mg 및 Zn으로 이루어지는 군으로부터 선택되는 어느 하나의 원소를 구성 금속원소로 하는 1종 또는 2종 이상의 유기계 금속 화합물 또는 금속 산화물로 표면이 코팅되어 있는 Ag 또는 Ag 주체의 합금으로 이루어지는 미립자에 의해 실질적으로 구성되는 금속 분말과, 이 금속 분말을 분산시키는 유기 매질을 함유하는 제2의 도체 조성물로서, 상기 제1의 도체 조성물과 비교하여 (1). 이 유기계 금속 화합물 또는 금속 산화물의 코팅량이 적을 것, 및/또는 (2). 부성분으로서 제1의 도체 조성물에는 함유되지 않는 적어도 1종의 무기 산화물 분말을 함유할 것, 또는 제1의 도체 조성물에도 함유되는 무기 산화물 분말의 함유율이 높은 것을 특징으로 하는 제2의 도체 조성물을 사용하여, 세라믹 기재에 측면 도체막을 형성하는 공정;을 포함하는, 세라믹 전자부품 제조방법.
- 제 1항에 있어서,상기 제1의 도체 조성물의 금속 분말에 대한 상기 유기계 금속 화합물 또는 금속 산화물의 코팅량은 산화물 환산으로 이 금속 분말의 0.025∼2.0wt%에 상당하는 양이며, 상기 제2의 도체 조성물의 금속 분말에 대한 상기 유기계 금속 화합물 또는 금속 산화물의 코팅량은 산화물 환산으로 이 금속 분말의 0.01∼1.0wt%에 상당하는 양(단, 제1의 도체 조성물의 금속 분말에 대한 코팅량을 상회하지 않는다)인, 세라믹 전자부품 제조방법.
- 제1항에 있어서,상기 무기 산화물 분말을 구성하는 산화물은, 산화 동, 산화 납, 산화 비스무트, 산화 망간, 산화 코발트, 산화 마그네슘, 산화 탄타륨, 산화 니오븀 및 산화 텅스텐으로 이루어지는 군으로부터 선택되는 1종 또는 2종 이상인, 세라믹 전자부품 제조방법.
- 제 1항에 있어서,상기 제1의 도체 조성물은 상기 무기 산화물 분말을 실질적으로 함유하지 않는, 세라믹 전자부품 제조방법.
- 제 1항에 있어서,상기 제2의 도체 조성물에 있어서의 상기 금속 분말의 함유율은, 상기 제1의 도체 조성물에 있어서의 상기 금속 분말의 함유율보다도 낮은, 세라믹 전자부품 제조방법.
- 제 5항에 있어서,상기 제1의 도체 조성물 전체에 있어서의 상기 금속 분말의 함유율은 80∼90wt%이며, 상기 제2의 도체 조성물 전체에 있어서의 상기 금속 분말의 함유율은 65∼75wt%인, 세라믹 전자부품 제조방법.
- 제 1항에 있어서,상기 제2의 도체 조성물에 함유되는 상기 금속 분말의 평균 입경은, 상기 제1의 도체 조성물에 함유되는 상기 금속 분말의 평균 입경보다 작은, 세라믹 전자부품 제조방법.
- 제 7항에 있어서,상기 제1의 도체 조성물에 함유되는 상기 금속 분말의 평균 입경은 0.5㎛ 이상∼2.0㎛ 이하이며, 상기 제2의 도체 조성물에 함유되는 상기 금속 분말의 평균 입경은 0.3㎛ 이상∼0.5㎛ 미만인, 세라믹 전자부품 제조방법.
- 제 1항에 있어서,상기 유기계 금속 화합물은 Al, Zr, Ti, Y, Ca, Mg 및 Zn으로 이루어지는 군으로부터 선택되는 어느 하나를 구성 요소로 하는 유기산 금속염, 금속 알콕시드, 또는 킬레이트 화합물인, 세라믹 전자부품 제조방법.
- 세라믹 기재와,그 기재의 표면에 형성된 표면 도체막으로서, Ag 또는 Ag 주체의 합금으로부터 실질적으로 구성된 금속과, 그 금속을 코팅하는 Al, Zr, Ti, Y, Ca, Mg 및 Zn으로 이루어지는 군으로부터 선택되는 어느 하나를 구성 요소로 하는 금속 산화물을 함유하는 표면 도체막과,그 표면에 인접하는 측면에 형성된 측면 도체막으로서, Ag 또는 Ag 주체의 합금으로부터 실질적으로 구성된 금속과, 그 금속을 코팅하는 Al, Zr, Ti, Y, Ca, Mg 및 Zn으로 이루어지는 군으로부터 선택되는 어느 하나를 구성요소로 하는 금속 산화물을 함유하고, 상기 표면 도체막과 비교하여, (1). 이 금속 산화물의 함유율이 적을 것, 및/또는 (2). 표면 도체막에는 포함되지 않는 이 금속 산화물과는 다른 적어도 1종의 무기 산화물을 함유할 것, 또는 표면 도체막에도 포함되는 무기 산화물의 함유율이 높을 것을 특징으로 하는 측면 도체막을,갖는 세라믹 전자부품.
- 제 10항에 있어서,상기 무기 산화물은, 산화 동, 산화 납, 산화 비스무트, 산화 망간, 산화 코발트, 산화 마그네슘, 산화 탄타륨, 산화 니오븀 및 산화 텅스텐으로 이루어지는 군으로부터 선택되는 1종 또는 2종 이상인, 세라믹 전자부품.
- 제 10항에 있어서,상기 표면 도체막은 상기 무기 산화물을 실질적으로 함유하지 않는, 세라믹 전자부품.
- 청구의 범위 제 1항에 기재된 제조방법에 의해 제조된 세라믹 전자부품.
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