KR102655140B1 - 복합 소결체, 반도체 제조 장치 부재 및 복합 소결체의 제조 방법 - Google Patents
복합 소결체, 반도체 제조 장치 부재 및 복합 소결체의 제조 방법 Download PDFInfo
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- KR102655140B1 KR102655140B1 KR1020210119132A KR20210119132A KR102655140B1 KR 102655140 B1 KR102655140 B1 KR 102655140B1 KR 1020210119132 A KR1020210119132 A KR 1020210119132A KR 20210119132 A KR20210119132 A KR 20210119132A KR 102655140 B1 KR102655140 B1 KR 102655140B1
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- sintered body
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- 238000004519 manufacturing process Methods 0.000 title claims description 46
- 238000000034 method Methods 0.000 title claims description 32
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- 238000010304 firing Methods 0.000 claims description 40
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 27
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 27
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 23
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 15
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- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
도 2는 복합 소결체의 제조의 흐름을 나타내는 도면이다.
도 3은 실시예의 복합 소결체의 단면 SEM 화상이다.
도 4는 전극의 밀착 강도를 구할 때의 시험편 및 지그를 나타내는 단면도이다.
도 5는 비교예의 복합 소결체의 단면 SEM 화상이다.
20 : 복합 소결체 21 : 본체부
23 : 전극 231 : 제1 영역
232 : 제2 영역 233 : 제3 영역
S11~S15 : 단계
Claims (15)
- 산화알루미늄을 주재료로 하는 기재와,
상기 기재의 내부 또는 표면에 배치되는 전극
을 구비하고,
상기 전극은, 루테늄과, 산화지르코늄과, 산화알루미늄을 포함하고,
상기 전극에서의 상기 산화알루미늄의 함유율은 상기 산화지르코늄의 함유율의 0.2배 이상 3.8배 이하인 것인 복합 소결체. - 산화알루미늄을 주재료로 하는 기재와,
상기 기재의 내부 또는 표면에 배치되는 전극
을 구비하고,
상기 전극은, 루테늄과, 산화지르코늄과, 산화알루미늄을 포함하고,
상기 전극의 두께 방향으로 평행한 상기 전극의 단면 SEM 화상을 두께 방향에 3등분하고, 두께 방향의 일방측으로부터 순서대로 제1 영역, 제2 영역 및 제3 영역으로 하면, 중앙의 상기 제2 영역에서의 상기 산화지르코늄의 면적은, 상기 제2 영역과 상기 기재 사이의 상기 제1 영역에서의 상기 산화지르코늄의 면적의 0.5배 이상 2.0배 이하인 것인 복합 소결체. - 산화알루미늄을 주재료로 하는 기재와,
상기 기재의 내부 또는 표면에 배치되는 전극
을 구비하고,
상기 전극은, 루테늄과, 산화지르코늄과, 산화알루미늄을 포함하고,
상기 전극의 상기 기재에 대한 밀착 강도는 90 ㎫ 이상인 것인 복합 소결체. - 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 전극과 상기 기재의 열팽창계수의 차의 절대치는, 40℃ 이상 1000℃ 이하의 범위에서 0.3 ppm/℃ 이하인 것인 복합 소결체.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 전극의 실온에서의 저항률은 3.0×10-5 Ω·cm 이하인 것인 복합 소결체.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 전극에서의 상기 산화지르코늄 및 상기 산화알루미늄의 합계 함유율은 20 체적% 이상인 것인 복합 소결체.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 전극 중의 고체물에서의 상기 루테늄, 상기 산화지르코늄 및 상기 산화알루미늄의 합계 함유율은 100 체적%인 것인 복합 소결체.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 상기 전극에 있어서, X선 회절법에 의해 얻어지는 상기 루테늄과 상기 산화지르코늄의 메인 피크의 강도비는 0.80 이상 1.0 미만인 것인 복합 소결체.
- 반도체 제조 장치에 있어서 사용되는 반도체 제조 장치 부재로서,
제1항 내지 제3항 중 어느 한 항에 기재된 복합 소결체를 이용하여 제작되고,
상기 기재는 원판형이며, 상기 기재의 주면에 반도체 기판이 배치되는 것인 반도체 제조 장치 부재. - 복합 소결체의 제조 방법으로서,
a) 산화알루미늄을 주재료로 하는 성형체, 가소체 또는 소결체인 제1 부재 및 제2 부재를 준비하는 공정과,
b) 상기 제1 부재 상에, 루테늄, 산화지르코늄 및 산화알루미늄을 포함하는 페이스트형의 전극 재료를 부여하여 건조시키는 공정과,
c) 상기 제1 부재 상에 상기 제2 부재를 적층하여 적층체를 형성하는 공정과,
d) 상기 적층체를 핫프레스 소성하는 공정
을 포함하고,
상기 d) 공정에 의해 상기 전극 재료로부터 형성된 전극에서의 상기 산화알루미늄의 함유율은 상기 산화지르코늄의 함유율의 0.2배 이상 3.8배 이하인 것인, 복합 소결체의 제조 방법. - 제10항에 있어서, 상기 a) 공정에서의 상기 제1 부재는 가소체 또는 테이프 성형체인 것인 복합 소결체의 제조 방법.
- 제10항 또는 제11항에 있어서, 상기 d) 공정의 종료후에서의 상기 전극과 상기 제1 부재의 열팽창계수의 차의 절대치는, 40℃ 이상 1000℃ 이하의 범위에서 0.3 ppm/℃ 이하인 것인 복합 소결체의 제조 방법.
- 제10항 또는 제11항에 있어서, 상기 d) 공정에서의 소성 온도는 1550℃ 이상 1650℃ 이하인 것인 복합 소결체의 제조 방법.
- 삭제
- 삭제
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