KR20050040114A - 복합재료와 웨이퍼 유지부재 및 이들의 제조방법 - Google Patents
복합재료와 웨이퍼 유지부재 및 이들의 제조방법 Download PDFInfo
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- KR20050040114A KR20050040114A KR1020040086219A KR20040086219A KR20050040114A KR 20050040114 A KR20050040114 A KR 20050040114A KR 1020040086219 A KR1020040086219 A KR 1020040086219A KR 20040086219 A KR20040086219 A KR 20040086219A KR 20050040114 A KR20050040114 A KR 20050040114A
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- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
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Abstract
Description
Claims (17)
- SiC, SiO2, Al 또는 Si 중 적어도 1종으로 이루어진 복합재료로서, He누출율이 1.3×10-10Pa·㎥/sec 이하인 것을 특징으로 하는 복합재료.
- 제 1 항에 있어서,SiC를 69~79질량%, Al을 10.6~20.6질량%, Si를 5.4~15.4질량%, SiO2를 0.01~5질량% 함유하는 것을 특징으로 하는 복합재료.
- 제 1 항에 있어서,SiC를 71.5~76.5질량%, Al을 13.1~18.1질량%, Si를 7.9~12.9질량%, SiO2를 0.05~2질량% 함유하는 것을 특징으로 하는 복합재료.
- 판형상 기체의 한쪽 주면을 웨이퍼를 얹는 배치면과, 상기 판형상 기체의 다른쪽 주면 또는 내부에 전극을 구비한 웨이퍼 유지부와,청구항 1의 복합재료로 이루어진 플레이트를 구비하고,상기 플레이트의 열팽창 계수가 상기 판형상 기체의 열팽창 계수의 0.8~1.2배이며,상기 판형상 기체와 상기 플레이트가 금속 접합재로 접합되어 있는 것을 특징으로 하는 웨이퍼 유지부재.
- 제 4 항에 있어서,상기 금속접합재는 6~15질량%의 Si와 0.1~5질량%의 Mg 또는 Cu를 함유하고, 잔부가 Al으로 이루어진 주성분과 상기 주성분에 대해서 첨가 성분으로서 Ni, Au, Ag으로부터 선택되는 적어도 1종을 0.01~10질량% 함유하는 것을 특징으로 하는 웨이퍼 유지부재.
- SiC와, Al 또는 Si 중 적어도 1종으로 이루어진 재료에 알킬실리케이트를 함침시키고, 계속해서 건조시키는 공정을 포함하는 것을 특징으로 하는 제 1 항에 기재된 복합재료의 제조방법.
- 판형상 세라믹스체의 한쪽 주면을 웨이퍼의 배치면으로 하고, 상기 판형상 세라믹스체의 다른쪽 주면 또는 내부에 전극을 갖는 웨이퍼 유지부,SiC와 알루미늄과 실리콘을 포함하는 복합재 플레이트,상기 웨이퍼 유지부의 배치면과 반대측 표면에 설치된 제 1 금속층,상기 복합재 플레이트의 표면에 설치된 제 2 금속층을 구비하고,제 1 금속층과 제 2 금속층 사이의 금속 접합재를 통하여, 상기 웨이퍼 유지부와 상기 복합재 플레이트가 접합되고,제 2 금속층의 두께(tm)와 상기 금속 접합재의 두께(t)의 비 tm/t가 0.01~1의 범위인 것을 특징으로 하는 웨이퍼 유지부재.
- 제 7 항에 있어서,제 2 금속층은 알루미늄, 금, 은, 동, 니켈로부터 선택되는 1종 또는 2종 이상을 주성분으로 하는 것을 특징으로 하는 웨이퍼 유지부재.
- 제 7 항에 있어서,상기 금속 접합재가 알루미늄 또는 인듐을 주성분으로 하는 브레이징재인 것을 특징으로 하는 웨이퍼 유지부재.
- 제 7 항에 있어서,상기 전극이 정전 흡착전극인 것을 특징으로 하는 웨이퍼 유지부재.
- 판형상 세라믹스체의 한쪽 주면을 웨이퍼의 배치면으로 하고 상기 판형상 세라믹스체의 다른쪽 주면 또는 내부에 전극을 구비하고,상기 판형상 세라믹스체의 체적 고유 저항이 108~1011Ω·㎝로서, 상기 배치면과는 반대측 면에 도체층을 구비하고,상기 도체층의 면적이 상기 배치면의 면적의 100% 이상인 것을 특징으로 하는 웨이퍼 유지부재.
- 제 11 항에 있어서,상기 도체층의 면적이 상기 배치면의 면적의 115%이상인 것을 특징으로 하는 웨이퍼 유지부재.
- 제 11 항에 있어서,상기 판형상 세라믹스체의 두께가 15㎜ 이하인 것을 특징으로 하는 웨이퍼 유지부재.
- 제 11 항에 있어서,상기 판형상 세라믹스체를 관통하는 관통구멍과,상기 배치면에 설치되고 상기 관통구멍과 연결된 홈을 구비하고,상기 홈의 깊이가 10~500㎛인 것을 특징으로 하는 웨이퍼 유지부재.
- 제 11 항에 있어서,상기 홈이 상기 판형상 세라믹스체의 중심으로부터 주변으로 방사상으로 연장되는 방사홈을 포함하는 것을 특징으로 하는 웨이퍼 유지부재.
- 제 11 항에 있어서,상기 방사홈의 길이가 상기 판형상 세라믹스체의 반경의 1/3 이상인 것을 특징으로 하는 웨이퍼 유지부재.
- 상기 웨이퍼 유지부의 배치면과 반대측의 표면 및 상기 복합재 플레이트의 표면에 각각 금속층을 형성하는 공정,제 1 금속층과 제 2 금속층 사이에 브레이징재를 설치하는 공정 및브레이징재를 가압하면서 가열하고 웨이퍼 유지부와 상기 복합부재를 접합하는 공정을 포함하는 것을 특징으로 하는 제 1 항에 기재된 웨이퍼 유지부재의 제조방법.
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2004
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- 2004-10-27 CN CN2008101657890A patent/CN101359589B/zh not_active Expired - Fee Related
- 2004-10-27 CN CNB2004100860004A patent/CN100429756C/zh not_active Expired - Fee Related
- 2004-10-27 US US10/974,560 patent/US7381673B2/en not_active Expired - Fee Related
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101358858B1 (ko) * | 2008-05-01 | 2014-02-05 | 주식회사 뉴파워 프라즈마 | 정전척 장치 및 이를 구비한 기판 처리 장치 |
Also Published As
Publication number | Publication date |
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CN1612311A (zh) | 2005-05-04 |
KR100841148B1 (ko) | 2008-06-24 |
CN100429756C (zh) | 2008-10-29 |
KR100883725B1 (ko) | 2009-02-12 |
CN101359589A (zh) | 2009-02-04 |
US20050101082A1 (en) | 2005-05-12 |
KR20080031704A (ko) | 2008-04-10 |
CN101359589B (zh) | 2010-12-08 |
US7381673B2 (en) | 2008-06-03 |
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