JP6895496B2 - インゴットの製造方法、インゴット成長用原料物質及びその製造方法 - Google Patents
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
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- 239000000463 material Substances 0.000 claims description 8
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- 230000003068 static effect Effects 0.000 claims description 3
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 26
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
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- C30B23/00—Single-crystal growth by condensing evaporated or sublimed materials
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- C30B23/00—Single-crystal growth by condensing evaporated or sublimed materials
- C30B23/02—Epitaxial-layer growth
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- 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
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- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
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Description
111 種結晶の前面
112 種結晶の後面
200 反応容器、坩堝
210 反応容器本体、坩堝本体
220 反応容器蓋、坩堝蓋
250 載置台
300 (ネッキング)原料物質
400 断熱材
420 反応チャンバ、石英管
500 加熱手段
Claims (12)
- D50が100μm以上400μm以下である原料粉末を反応容器に装入する装入ステップと、
前記反応容器内の温度を調節して、互いに隣接して位置する前記原料粉末の粒子が互いに連結されるネッキング原料物質を形成するネッキングステップと、
前記ネッキング原料物質から原料物質を昇華させてインゴットを成長させるインゴット成長ステップとを含み、
前記原料粉末は、前記原料粉末物質自体の密度を100としたとき、タップ密度が69以下の割合を有するものであり、
前記原料粉末はSiC粒子を含む、インゴットの製造方法。 - 前記ネッキングステップは、昇温過程及び熱処理過程を順に含み、前記熱処理過程は、1,800℃以上の温度で行われる、請求項1に記載のインゴットの製造方法。
- 前記ネッキングステップは、350torr以上の圧力で行われる、請求項1に記載のインゴットの製造方法。
- 前記原料粉末は、タップ密度が2.1g/cm3以下であり、
前記原料粉末の粒子は、六角結晶形粒子である、請求項1に記載のインゴットの製造方法。 - 前記ネッキング原料物質は、その表面に炭化層を含み、
前記炭化層は、前記原料粉末の粒子の中心部の炭素含量よりも多くの炭素含量を有するものである、請求項1に記載のインゴットの製造方法。 - 前記インゴット成長ステップにおいて、前記インゴットが成長する速度は180μm/hr以上である、請求項1に記載のインゴットの製造方法。
- 前記インゴットはSiCインゴットである、請求項1に記載のインゴットの製造方法。
- D50が100μm以上400μm以下である原料粉末であって、前記原料粉末の粒子が互いに隣接する他の粒子と少なくともその一部が物理的に連結されるネッキング原料物質を含み、
前記ネッキング原料物質は、前記原料粉末物質自体の密度を100としたとき、タップ密度が69以下の割合を有するものであり、
前記原料粉末はSiC粒子を含む、インゴット成長用原料物質。 - 前記ネッキング原料物質は、その表面に炭化層を含み、
前記炭化層は、前記原料粉末の粒子の中心部の炭素含量よりも多くの炭素含量を有するものである、請求項8に記載のインゴット成長用原料物質。 - 前記原料粉末の粒子は、アスペクト比が0.3〜1である結晶形の粒子であり、六角結晶形粒子である、請求項8に記載のインゴット成長用原料物質。
- 風量20m3/min、静圧230mmAqを適用した吸入前と吸入後との重量差が2重量%以下である、請求項8に記載のインゴット成長用原料物質。
- D50が100μm以上400μm以下である原料粉末を反応容器に装入する装入ステップと、
前記反応容器内の温度を調節して、互いに隣接して位置する前記原料粉末の粒子が互いに連結されるネッキング原料物質を形成するネッキングステップとを含んで、請求項10に記載のインゴット成長用原料物質を製造する、インゴット成長用原料物質の製造方法。
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KR20240029434A (ko) * | 2022-08-26 | 2024-03-05 | 주식회사 쎄닉 | 탄화규소 분말 및 이를 이용하여 탄화규소 잉곳을 제조하는 방법 |
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JP2010090012A (ja) * | 2008-10-10 | 2010-04-22 | Bridgestone Corp | 炭化珪素単結晶の製造方法 |
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