JP2011505701A - 半導体加工用部品の処理方法およびそれにより形成された部品 - Google Patents
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B35/00—Apparatus not otherwise provided for, specially adapted for the growth, production or after-treatment of single crystals or of a homogeneous polycrystalline material with defined structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L21/673—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 using specially adapted carriers or holders; Fixing the workpieces on such carriers or holders
- H01L21/67313—Horizontal boat type carrier whereby the substrates are vertically supported, e.g. comprising rod-shaped elements
- H01L21/67316—Horizontal boat type carrier whereby the substrates are vertically supported, e.g. comprising rod-shaped elements characterized by a material, a roughness, a coating or the like
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- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
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- Organic Chemistry (AREA)
- Chemical Vapour Deposition (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Drying Of Semiconductors (AREA)
- Recrystallisation Techniques (AREA)
Abstract
Description
標準的加工を用いて25mm×75mm×6mmのサイズのSi:SiCクーポンを作製した。クーポンを希酸中で超音波クリーニングし、DI水で濯ぎ、そして乾燥させた。クリーニングされたクーポンをCVD反応器内に装填し、Si:SiCクーポンの表面上に50〜75ミクロンの厚さのCVD膜を堆積させた。コーティング純度に及ぼす装置の影響をさらに理解するために、2つの異なるコーティングシステム(装置Aおよび装置B)を用いて複数のコーティング実験を行った。
6mm×18mm×3mmのサイズのSi:SiCクーポンを機械加工して平滑表面を提供し、次に、標準的な加工を用いて作製を行った。クーポンを希酸中で超音波クリーニングし、DI水で濯ぎ、そして乾燥させた。クリーニングされたクーポンをCVD反応器内に装填し、Si:SiCクーポンの表面上に25〜35ミクロンの厚さのCVD膜を堆積させた。クーポンがCVD反応器内に保持される領域の近傍のいずれの薄肉コーティングをも十分に密封するために、20〜35ミクロンの厚さのCVD膜でCVD被覆サンプルに再被覆した。20ppbの通常Fe濃度および500〜900ppbの高Fe濃度のCVD−SiC膜を有するクーポンをクリーニング試験のために作製した。
6mm×18mm×3mmのサイズのSi:SiCクーポンを機械加工して平滑表面を提供し、次に、標準的な加工を用いて作製を行った。クーポンを希酸中で超音波クリーニングし、DI水で濯ぎ、そして乾燥させた。クリーニングされたクーポンをCVD反応器内に装填し、各コーティングの厚さが25〜35ミクロンであるCVD膜で2回被覆した。500〜900ppbの高Fe濃度のCVD−SiC膜を有するクーポンをクリーニング試験のために作製した。
Claims (22)
- 半導体加工用部品であって、前記部品が、炭化ケイ素を含む外表面部分を有し、前記外表面部分が、スキン不純物レベルとバルク不純物レベルとを有し、前記スキン不純物レベルが、前記外表面部分中0nm〜100nmの深さの平均不純物レベルであり、前記バルク不純物レベルが、前記外表面部分中3.0ミクロン以上の深さで測定され、かつ前記スキン不純物レベルが、前記バルク不純物レベルの80%以下であり、前記スキンバルク不純物レベルが、Fe、Cr、およびNiのうちの1つの濃度に基づく部品。
- 前記スキン不純物レベルが前記バルク不純物レベルの70%以下である、請求項2に記載の部品。
- 前記スキン不純物レベルが前記バルク不純物レベルの60%以下である、請求項3に記載の部品。
- 前記スキン不純物レベルおよび前記バルク不純物レベルがFe濃度に基づき、前記スキン不純物レベルが100ppb原子以下のFeである、請求項1に記載の部品。
- 前記スキン不純物レベルが50ppb原子以下のFeである、請求項4に記載の部品。
- 前記外表面部分がすべてCVD−SiCで形成される、請求項1に記載の部品。
- 前記CVD−SiCが、SiCを含む基板上に堆積される、請求項6に記載の部品。
- 前記基板が、元素のシリコンで含浸されたSiCを含む、請求項7に記載の部品。
- 前記CVD−SiC層が、約10〜約1000μmの範囲内の厚さを有する、請求項7に記載の部品。
- 前記部品が自立性CVD−SiC部品である、請求項6に記載の部品。
- 前記表面不純物レベルおよび前記バルク不純物レベルが、Cr、Fe、Cu、Ni、Al、Ca、Na、Zn、およびTiの濃度のうちの少なくとも1つに基づく、請求項1に記載の部品。
- 前記表面不純物レベルおよび前記バルク不純物レベルがFe濃度に基づく、請求項11に記載の部品。
- 前記半導体加工用部品が、半導体ウェーハパドル、プロセスチューブ、ウェーハボート、ライナー、ペデスタル、ロングボート、カンチレバーロッド、ウェーハキャリヤー、プロセスチャンバー、ダミーウェーハ、ウェーハサセプター、フォーカスリング、サスペンションリングからなる群に属する部品を含む、請求項1に記載の部品。
- 前記部品がウェーハボートである、請求項13に記載の部品。
- SiCの化学気相堆積により形成された外表面部分を有する半導体加工用部品を提供する工程と、
前記外表面部分の対象部分を除去する工程であって、前記外表面部分は、スキン不純物レベルとバルク不純物レベルとを有し、前記スキン不純物レベルは前記外表面部分中0nm〜100nmの深さの平均不純物レベルであり、前記バルク不純物レベルは前記外表面部分中3.0ミクロン以上の深さで測定される工程と、
前記部品に熱処理を行って前記外表面部分の表面から不純物を拡散させることにより、前記スキン不純物レベルが前記バルク不純物レベルの80%以下になるようにする工程と、
を含む、半導体加工用部品の裸出方法。 - 前記外表面部分上に重畳されたゲッター層を形成して、不純物を熱処理時に前記ゲッター層中に移動させるようにする工程をさらに含む、請求項15に記載の方法。
- 前記ゲッター層が、前記外表面部分の不純物拡散係数の少なくとも102倍の不純物拡散係数を有する、請求項16に記載の方法。
- 前記ゲッター層が、前記外表面部分の酸化により形成された酸化ケイ素を含むか、または堆積により形成された多結晶性シリコンを含む、請求項16に記載の方法。
- 前記熱処理が5時間以上にわたり1150℃以上の温度で行われる、請求項15に記載の方法。
- 前記熱処理がハロゲン化物ガスの存在下で行われる、請求項15に記載の方法。
- 前記スキン不純物レベルが前記バルク不純物レベルの70%以下である、請求項15に記載の方法。
- 前記スキン不純物レベルが100ppb原子以下のFeである、請求項15に記載の方法。
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KR (1) | KR20100101640A (ja) |
CN (1) | CN101884099B (ja) |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013212951A (ja) * | 2012-04-02 | 2013-10-17 | Sumitomo Electric Ind Ltd | 炭化珪素基板、半導体装置およびこれらの製造方法 |
JPWO2013011751A1 (ja) * | 2011-07-20 | 2015-02-23 | 住友電気工業株式会社 | 炭化珪素基板、半導体装置およびこれらの製造方法 |
WO2016038664A1 (ja) * | 2014-09-08 | 2016-03-17 | 三菱電機株式会社 | 半導体アニール装置 |
JP2016155757A (ja) * | 2016-05-20 | 2016-09-01 | 住友電気工業株式会社 | 炭化珪素基板、半導体装置およびこれらの製造方法 |
Families Citing this family (3)
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US20090214999A1 (en) * | 2008-02-21 | 2009-08-27 | Saint-Gobain Ceramics & Plastics, Inc. | Ceramic Paddle |
CN103319180B (zh) * | 2013-07-01 | 2014-06-18 | 潍坊华美精细技术陶瓷有限公司 | 反应烧结碳化硅悬臂桨的制作方法 |
EP3159325B1 (en) | 2015-10-22 | 2020-07-08 | Rolls-Royce High Temperature Composites Inc | Reducing impurities in ceramic matrix composites |
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JPWO2013011751A1 (ja) * | 2011-07-20 | 2015-02-23 | 住友電気工業株式会社 | 炭化珪素基板、半導体装置およびこれらの製造方法 |
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US9484416B2 (en) | 2011-07-20 | 2016-11-01 | Sumitomo Electric Industries, Ltd. | Silicon carbide substrate, semiconductor device and methods for manufacturing them |
US9728612B2 (en) | 2011-07-20 | 2017-08-08 | Sumitomo Electric Industries, Ltd. | Silicon carbide substrate, semiconductor device and methods for manufacturing them |
JP2013212951A (ja) * | 2012-04-02 | 2013-10-17 | Sumitomo Electric Ind Ltd | 炭化珪素基板、半導体装置およびこれらの製造方法 |
US9437690B2 (en) | 2012-04-02 | 2016-09-06 | Sumitomo Electric Industries, Ltd. | Silicon carbide substrate, semiconductor device, and methods for manufacturing them |
US9722028B2 (en) | 2012-04-02 | 2017-08-01 | Sumitomo Electric Industries, Ltd. | Silicon carbide substrate, semiconductor device, and methods for manufacturing them |
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Also Published As
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CN101884099B (zh) | 2012-07-25 |
WO2009085703A3 (en) | 2009-10-22 |
WO2009085703A2 (en) | 2009-07-09 |
JP5480153B2 (ja) | 2014-04-23 |
US20090159897A1 (en) | 2009-06-25 |
US8058174B2 (en) | 2011-11-15 |
CN101884099A (zh) | 2010-11-10 |
JP2013118376A (ja) | 2013-06-13 |
KR20100101640A (ko) | 2010-09-17 |
TW200943460A (en) | 2009-10-16 |
TWI421965B (zh) | 2014-01-01 |
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