JP5231064B2 - 真空吸着装置及びその製造方法 - Google Patents
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Description
図1は本発明の真空吸着装置を示す概略断面図である。真空吸着装置10は、多孔質体からなる載置部11と、該載置部の周囲を取り囲むように支持する緻密質体からなる支持部12と、該支持部12に形成された吸引孔13及び多孔質体全体で吸引できるように形成した吸引溝14とを具備し、載置面11a上に、シリコン基板Wを載置する。載置部11と支持部12との接合界面は実質的に隙間なく一体的に形成されている。
その理由は、金属珪素粉末の平均粒径が炭化珪素粒子よりも大きいと、炭化珪素粒子充填を阻害して充填率が低くなるため、金属珪素粉末が溶融した際に収縮を起こすからである。金属珪素粉末の平均粒径は、好ましくは、炭化珪素粒子の平均粒径の1/10以下、さらに好ましくは1/20以下が望ましい。
11;載置部
11a;載置面
12;支持部
13;吸引孔
14;吸引溝
W;基板
Claims (6)
- 炭化珪素粒子が金属珪素により結合された構造を有する多孔質体からなる載置部と、
炭化珪素焼結体の緻密質体からなる支持部と、
を具備する真空吸着装置であって、
前記載置部の炭化珪素と前記支持部の炭化珪素とが直接的に接合する接合界面が形成され、金属珪素により前記載置部と前記支持部とが隙間なく直接接合された接合構造を有することを特徴とする真空吸着装置。 - 前記多孔質体において、金属珪素と炭素との反応焼結により生成された炭化珪素の割合が、0.1質量%以下である請求項1記載の真空吸着装置。
- 前記多孔質体のヤング率が80GPa以上である請求項1または2記載の真空吸着装置。
- 前記多孔質体の熱伝導率が40〜100W/(m・K)である請求項1〜3のいずれか一項に記載の真空吸着装置。
- 請求項1〜4のいずれか一項に記載の真空吸着装置の製造方法であって、
炭化珪素粒子および金属珪素粉末に、水またはアルコールを加えて混合してスラリーを調整するスラリー調整工程と、
前記スラリーを前記載置部が形成される前記支持部に設けられた凹部に充填するスラリー充填工程と、
前記凹部に前記スラリーが充填された前記支持部を、大気中で加熱する脱脂工程と、
金属珪素が溶融して炭化珪素粒子間が結合される温度まで不活性雰囲気中で加熱する熱処理工程と、
を含むことを特徴とする真空吸着装置の製造方法。 - 前記脱脂工程における重量減少率が0.5%以下である請求項5記載の真空吸着装置の製造方法。
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JP2009246013A JP2009246013A (ja) | 2009-10-22 |
JP5231064B2 true JP5231064B2 (ja) | 2013-07-10 |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2011114253A (ja) * | 2009-11-30 | 2011-06-09 | Nanotemu:Kk | 真空チャック |
JP5733700B2 (ja) * | 2011-02-28 | 2015-06-10 | 株式会社ナノテム | 真空チャック |
JP2013159359A (ja) * | 2012-02-03 | 2013-08-19 | Yamato Scale Co Ltd | 箱詰め装置及びそれを用いた箱詰め方法 |
JP6179030B2 (ja) * | 2012-12-28 | 2017-08-16 | 日本特殊陶業株式会社 | 真空吸着装置およびその製造方法 |
JP7519790B2 (ja) | 2020-03-13 | 2024-07-22 | 株式会社ディスコ | 保持テーブル、加工装置、及び、スピンナー洗浄ユニット |
JP7559195B1 (ja) | 2023-12-22 | 2024-10-01 | 日本特殊陶業株式会社 | 保持装置、及び緻密層付き多孔質体 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2001130982A (ja) * | 1999-08-20 | 2001-05-15 | Ibiden Co Ltd | 半導体製造装置用セラミック板 |
JP4336532B2 (ja) * | 2003-07-02 | 2009-09-30 | 太平洋セメント株式会社 | 真空吸着装置およびその製造方法 |
JP2005072039A (ja) * | 2003-08-25 | 2005-03-17 | Ibiden Co Ltd | 真空チャック |
JP4868885B2 (ja) * | 2005-05-24 | 2012-02-01 | 京セラ株式会社 | 珪素−炭化珪素複合部材の製造方法 |
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