JP6450920B2 - ダイヤモンド基板及びダイヤモンド基板の製造方法 - Google Patents
ダイヤモンド基板及びダイヤモンド基板の製造方法 Download PDFInfo
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- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/26—Deposition of carbon only
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- C30B23/00—Single-crystal growth by condensing evaporated or sublimed materials
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- C30B23/025—Epitaxial-layer growth characterised by the substrate
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- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
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- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/10—Heating of the reaction chamber or the substrate
- C30B25/105—Heating of the reaction chamber or the substrate by irradiation or electric discharge
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- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/18—Epitaxial-layer growth characterised by the substrate
- C30B25/20—Epitaxial-layer growth characterised by the substrate the substrate being of the same materials as the epitaxial layer
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- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/60—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape characterised by shape
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- H10D62/83—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge
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Description
2 ダイヤモンド基板の表面
3 ダイヤモンド基板内部の結晶軸
4 下地基板
4a 下地基板の片面
4b 下地基板の裏面
9 ダイヤモンド層
11 柱状ダイヤモンド
12 ダイヤモンド基板層
t ダイヤモンド基板の厚み
d4 下地基板の厚み
d9 ダイヤモンド層の厚み
d12 ダイヤモンド基板層の厚み
Claims (8)
- 下地基板を用意し、
その下地基板の片面にダイヤモンド単結晶から成る柱状ダイヤモンドを複数形成し、
各柱状ダイヤモンドの先端からダイヤモンド単結晶を成長させ、各柱状ダイヤモンドの先端から成長した各ダイヤモンド単結晶をコアレッセンスしてダイヤモンド基板層を形成し、
下地基板とダイヤモンド基板層との格子定数差によって応力を柱状ダイヤモンドに発生、及び/又は、下地基板とダイヤモンド基板層との熱膨張係数差によって応力を柱状ダイヤモンドに発生させて、柱状ダイヤモンドを破壊して下地基板からダイヤモンド基板層を分離し、
ダイヤモンド基板層からダイヤモンド基板を製造して、
外観上、表面及び裏面が平坦で平行に形成された平板型で1つの自立基板で、平面方向の形状を円形状又はオリフラ面が設けられた円形状とし、直径が0.4インチ以上8インチ以下であり、更にダイヤモンド基板の内部の結晶面の曲率を、0km -1 を超えて1500km -1 以下とすることを特徴とする、ダイヤモンド基板の製造方法。 - 前記各柱状ダイヤモンドのアスペクト比が、5以上であることを特徴とする請求項1に記載のダイヤモンド基板の製造方法。
- 前記柱状ダイヤモンドの直径とピッチを、それぞれ10μm以下に設定することを特徴とする請求項1又は2に記載のダイヤモンド基板の製造方法。
- 前記下地基板の前記片面の表面粗さRaが、10nm以下であることを特徴とする請求項1〜3の何れかに記載のダイヤモンド基板の製造方法。
- 前記柱状ダイヤモンドの高さ方向を、前記柱状ダイヤモンドを形成する前記ダイヤモンド単結晶の(001)面に対して垂直な方向に設定することを特徴とする請求項1〜4の何れかに記載のダイヤモンド基板の製造方法。
- 前記柱状ダイヤモンドが円柱状であり、
高さ方向において、前記柱状ダイヤモンドの中心部分の直径が、先端部分の直径よりも細く形成されていることを特徴とする請求項1〜5の何れかに記載のダイヤモンド基板の製造方法。 - 前記曲率を0km -1 を超えて400km -1 以下とすることを特徴とする請求項1〜6の何れかに記載のダイヤモンド基板の製造方法。
- 前記曲率が0km -1 を超えて200km -1 以下であることを特徴とする請求項1〜7の何れかに記載のダイヤモンド基板の製造方法。
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| JP2017163820A Active JP6450920B2 (ja) | 2014-02-05 | 2017-08-29 | ダイヤモンド基板及びダイヤモンド基板の製造方法 |
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| US (2) | US10246794B2 (ja) |
| EP (1) | EP3103898A4 (ja) |
| JP (2) | JP6450919B2 (ja) |
| KR (1) | KR102106425B1 (ja) |
| CN (1) | CN105705683B (ja) |
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| EP3330414A4 (en) * | 2015-07-31 | 2019-02-20 | Adamant Namiki Precision Jewel Co., Ltd. | DIAMOND SUBSTRATE AND METHOD FOR PRODUCING THE DIAMOND SUBSTRATE |
| JP2017109877A (ja) * | 2015-12-14 | 2017-06-22 | 並木精密宝石株式会社 | ダイヤモンド基板 |
| JP2017160088A (ja) * | 2016-03-10 | 2017-09-14 | 並木精密宝石株式会社 | ダイヤモンド基板及びダイヤモンド基板の製造方法 |
| JP2017214248A (ja) * | 2016-06-01 | 2017-12-07 | 並木精密宝石株式会社 | ダイヤモンド基板及びダイヤモンド基板の製造方法 |
| JP2017214249A (ja) * | 2016-06-01 | 2017-12-07 | 並木精密宝石株式会社 | ダイヤモンド基板及びダイヤモンド基板の製造方法 |
| JP6772711B2 (ja) * | 2016-09-20 | 2020-10-21 | 住友電気工業株式会社 | 半導体積層構造体および半導体デバイス |
| WO2019186862A1 (ja) | 2018-03-29 | 2019-10-03 | アダマンド並木精密宝石株式会社 | ダイヤモンド結晶 |
| WO2020230602A1 (ja) * | 2019-05-10 | 2020-11-19 | アダマンド並木精密宝石株式会社 | ダイヤモンド結晶基板及びダイヤモンド結晶基板の製造方法 |
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| JP2012031000A (ja) | 2010-07-29 | 2012-02-16 | Kobe Steel Ltd | 配列化ダイヤモンド膜およびその製造方法 |
| JP5929520B2 (ja) | 2012-05-30 | 2016-06-08 | 住友電気工業株式会社 | ダイヤモンド系膜の製造方法およびそれに用いられる複合基板 |
| WO2014095373A1 (en) * | 2012-12-18 | 2014-06-26 | Element Six Limited | Substrates for semiconductor devices |
| JP2014178456A (ja) * | 2013-03-14 | 2014-09-25 | Pixtronix Inc | 表示装置及びその製造方法 |
| EP3054036B1 (en) | 2013-09-30 | 2021-03-03 | Adamant Namiki Precision Jewel Co., Ltd. | Diamond substrate manufacturing method |
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|---|---|
| CN105705683A (zh) | 2016-06-22 |
| JP6450919B2 (ja) | 2019-01-16 |
| EP3103898A4 (en) | 2017-08-16 |
| WO2015119067A1 (ja) | 2015-08-13 |
| JPWO2015119067A1 (ja) | 2017-03-23 |
| US10246794B2 (en) | 2019-04-02 |
| CN105705683B (zh) | 2019-05-17 |
| EP3103898A1 (en) | 2016-12-14 |
| KR102106425B1 (ko) | 2020-05-04 |
| US20170009377A1 (en) | 2017-01-12 |
| US20190136410A1 (en) | 2019-05-09 |
| US10619267B2 (en) | 2020-04-14 |
| JP2017214284A (ja) | 2017-12-07 |
| KR20160119068A (ko) | 2016-10-12 |
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