KR100717109B1 - 산화이트륨 소결체, 정전척 및 산화이트륨 소결체의 제조방법 - Google Patents
산화이트륨 소결체, 정전척 및 산화이트륨 소결체의 제조방법 Download PDFInfo
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- KR100717109B1 KR100717109B1 KR1020060077558A KR20060077558A KR100717109B1 KR 100717109 B1 KR100717109 B1 KR 100717109B1 KR 1020060077558 A KR1020060077558 A KR 1020060077558A KR 20060077558 A KR20060077558 A KR 20060077558A KR 100717109 B1 KR100717109 B1 KR 100717109B1
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/6831—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using electrostatic chucks
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Abstract
Description
Claims (15)
- 탄화규소를 5∼40 체적% 포함하고,실온에서의 체적 저항율이 1×1O1∼1×1O17Ω·cm의 범위 내에 있는 것을 특징으로 하는 산화이트륨 소결체.
- 제1항에 있어서,상기 탄화규소를 10∼30 체적% 포함하고,상기 실온에서의 체적 저항율이 1×1O8∼1×1O13Ω·cm의 범위 내에 있는 것을 특징으로 하는 산화이트륨 소결체.
- 제1항 또는 제2항에 있어서, 상기 탄화규소의 평균 입자 지름이 0.1∼10 ㎛ 인 것을 특징으로 하는 산화이트륨 소결체.
- 제1항 또는 제2항에 있어서, 굽힘 강도가 250 MPa 이상인 것을 특징으로 하는 산화이트륨 소결체.
- 제1항 또는 제2항에 있어서, 파괴 인성이 1.5 MPa·m1/2 이상인 것을 특징으로 하는 산화이트륨 소결체.
- 제1항 또는 제2항에 있어서, 상대 밀도가 98% 이상인 것을 특징으로 하는 산화이트륨 소결체.
- 제1항 또는 제2항에 있어서, 핫 프레스법에 의해 소성되는 것을 특징으로 하는 산화이트륨 소결체.
- 죤슨·라벡 힘(Johnsen-Lahbek force)을 이용하는 정전척으로서,기체와,상기 기체 상에 형성된 전극과,상기 전극 상에 형성되고, 탄화규소를 10∼30 체적% 포함하고, 실온에서의 체적 저항율이 1×1O8∼1×1O13Ω·cm의 범위 내에 있는 산화이트륨 소결체로 형성된 유전체층을 구비하는 것을 특징으로 하는 정전척.
- 제8항에 있어서, 상기 기체는 알루미나를 포함하는 소결체로 형성되는 것을 특징으로 하는 정전척.
- 제8항에 있어서, 상기 기체는 상기 산화이트륨 소결체에 의해 형성되는 것을 특징으로 하는 정전척.
- 제8항 내지 제10항 중 어느 한 항에 있어서,상기 전극을 급전 부재에 접속하기 위한 단자와,상기 기체에 매설되고, 상기 전극 및 상기 단자와 접합하며, 상기 전극과 상기 단자를 접속하는 접속 부재를 구비하는 것을 특징으로 하는 정전척.
- 제11항에 있어서, 상기 접속 부재는 상기 전극과의 접합면과 상기 단자와의 접합면 사이의 거리가 1 mm 이상인 것을 특징으로 하는 정전척.
- 제11항에 있어서, 상기 접속 부재는 백금 또는 니오븀 중 적어도 하나를 포함하는 것을 특징으로 하는 정전척.
- 탄화규소 5∼40 체적%와 산화이트륨을 포함하는 원료 분말을 제조하는 공정과,상기 원료 분말을 이용하여 성형체를 제조하는 공정과,상기 성형체를 불활성 가스 분위기하에서 1500∼2000℃에서 소성하는 공정을 구비하는 것을 특징으로 하는 산화이트륨 소결체의 제조 방법.
- 제14항에 있어서, 상기 성형체를 핫 프레스법에 의해 소성하는 것을 특징으 로 하는 산화이트륨 소결체의 제조 방법.
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KR102290498B1 (ko) | 2020-03-30 | 2021-08-17 | (주)도 은 | 렌즈 코팅용 옥시불화이트륨을 함유하는 저굴절 물질 및 그의 제조방법 |
CN116666293B (zh) * | 2023-05-15 | 2024-01-16 | 杭州大和江东新材料科技有限公司 | 一种高平整度的陶瓷真空吸盘 |
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KR101217253B1 (ko) * | 2010-10-20 | 2012-12-31 | 한국세라믹기술원 | 정전척용 흑색 유전체 소재 및 그 제조방법 |
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