JP6931366B2 - 三次元半導体素子のエピタキシャル成長に適した核形成構造 - Google Patents
三次元半導体素子のエピタキシャル成長に適した核形成構造 Download PDFInfo
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- JP6931366B2 JP6931366B2 JP2018568319A JP2018568319A JP6931366B2 JP 6931366 B2 JP6931366 B2 JP 6931366B2 JP 2018568319 A JP2018568319 A JP 2018568319A JP 2018568319 A JP2018568319 A JP 2018568319A JP 6931366 B2 JP6931366 B2 JP 6931366B2
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- 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
- C30B23/00—Single-crystal growth by condensing evaporated or sublimed materials
- C30B23/02—Epitaxial-layer growth
- C30B23/025—Epitaxial-layer growth characterised by the substrate
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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
- C30B23/00—Single-crystal growth by condensing evaporated or sublimed materials
- C30B23/02—Epitaxial-layer growth
- C30B23/04—Pattern deposit, e.g. by using masks
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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
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/04—Pattern deposit, e.g. by using masks
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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
- 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
- C30B25/183—Epitaxial-layer growth characterised by the substrate being provided with a buffer layer, e.g. a lattice matching layer
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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
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- 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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- C—CHEMISTRY; METALLURGY
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- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
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- C30B29/66—Crystals of complex geometrical shape, e.g. tubes, cylinders
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- H—ELECTRICITY
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- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
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- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
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- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02494—Structure
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- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
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Description
ワイヤの核形成及びそれらのエピタキシャル成長は、例えば、シリコン結晶からなる半導体基板上に置かれた、例えば、窒化アルミニウム、または、遷移金属窒化物からなる核形成部を使用して実行される。
−核形成面を覆う遷移金属を含む第2の材料から形成される層のエピタキシャル成長のステップと、
−第2の材料から形成される層を覆う誘電体材料の層を堆積するステップと、
−前記核形成面に面し、前記第2の材料上に開口する第1の開口を形成するように、第2の材料まで、前記誘電材料を局所的かつ選択的にドライエッチングするステップと、
−核形成面上に開口する開口を形成するために、第1の開口を通して核形成結晶材料まで、前記第2の材料を局所的かつ選択的にウェットエッチングする。
−前述の特徴のうちのいずれか1つによる核形成構造の製造工程と、
−核形成面から複数の三次元半導体素子を成長させる成長工程と、の間において、核形成部が窒化アニーリングされないように、核形成面から複数の三次元半導体素子を成長させる成長工程。
−単結晶材料で形成された成長面13を含む基板11、
−基板11の成長面13からエピタキシャル成長した中間結晶材料で形成され、反対側の表面が上部中間面15と呼ばれる複数の中間部14、
−上部中間面15からエピタキシャル成長した遷移金属を含む材料からなり、それぞれが核形成面17と呼ばれる反対側の表面を有する複数の核形成部16。
Claims (16)
- 三次元半導体素子(31)のエピタキシャル成長に適した核形成構造(10)であって、成長面(13)を形成する単結晶材料を含む基板(11)を有し、前記基板(11)上に遷移金属を含む材料からなる複数の核形成部(16)が形成される前記核形成構造(10)であって、
複数の中間部(14)を備え、各前記中間部(14)は、前記成長面(13)からエピタキシャル成長した中間結晶材料で形成され、各前記中間部(14)は、前記中間結晶材料の面内の少なくとも1つの方向、及び、前記中間結晶材料の面に直交する少なくとも1つの方向において、前記基板(11)の結晶格子の結晶学的配向に整列した前記中間部(14)の結晶格子の結晶学的配向を有し、各前記中間部(14)は、前記成長面(13)の反対側に上部中間面(15)を画定し、
各前記核形成部(16)は、前記上部中間面(15)からエピタキシャル成長し、核形成結晶材料を形成する遷移金属を含む材料から形成され、各前記核形成部(16)は、前記核形成結晶材料の面内の少なくとも1つの方向、及び、前記核形成結晶材料の面に直交する少なくとも1つの方向において、前記中間結晶材料の結晶格子の結晶学的配向に整列した前記核形成部の結晶格子の結晶学的配向を有し、各前記核形成部(16)は、前記上部中間面(15)の反対側に核形成面(17)を画定し、前記三次元半導体素子(31)のエピタキシャル成長に適した、
ことを特徴とする核形成構造(10)。 - 前記中間部(14)は、互いに分離したブロックを形成し、前記核形成部(16)は、前記遷移金属を含む材料で形成され前記成長面(13)に接する注入部(20)と、少なくとも部分的に境界を伴って接し、前記注入部(20)は、前記成長面(13)からテクスチャ形成され、前記注入部(20)及び前記成長面(13)の材料の面に直交する方向に、一つの好ましい結晶学的配向を有する、
請求項1に記載の核形成構造(10)。 - 前記中間結晶材料は、窒化アルミニウム、III−V族化合物、並びに、アルミニウム、チタン、ハフニウム、マグネシウム及びジルコニウムの酸化物から選択され、六方晶、面心立方晶または斜方晶系の結晶構造を有する、
請求項1または2に記載の核形成構造(10)。 - 前記核形成結晶材料は、チタン、バナジウム、クロム、ジルコニウム、ニオブ、モリブデン、ハフニウム、タンタル若しくはタングステン、または、チタン、バナジウム、クロム、ジルコニウム、ニオブ、モリブデン、ハフニウム、タンタル若しくはタングステンの窒化物若しくは炭化物から選択され、六方晶系または面心立方晶系の結晶構造を有する、
請求項1〜3のいずれか1項に記載の核形成構造(10)。 - 前記基板(11)の単結晶材料は、III−V族化合物、II−VI族化合物、または、IV族元素若しくはIV族化合物から選択され、六方晶系または面心立方晶系の結晶構造を有する、
請求項1〜4のいずれか1項に記載の核形成構造(10)。 - 前記基板(11)の材料は、導電性である、
請求項5に記載の核形成構造(10)。 - 前記成長面(13)と接触して配置され、前記核形成部(16)と同じ材料で前記核形成部(16)から一体的に形成された注入部(20)で覆われ、遷移金属を含む材料から形成された少なくとも1つの下部注入部(22)を備え、前記下部注入部(22)は、前記成長面(13)からテクスチャ形成され、これにより、前記下部注入部(22)の材料の面に直交する方向に一つの好ましい結晶学的配向を有する、
請求項1〜6のいずれか1項に記載の核形成構造(10)。 - 前記核形成部(16)と接触して配置され、前記核形成面(17)を部分的に覆う遷移金属を含む材料から形成された少なくとも1つの上部注入部(21)を備えた、
請求項1〜7のいずれか1項に記載の核形成構造(10)。 - 請求項1〜8のいずれか1項に記載の核形成構造(10)と、複数の前記三次元半導体素子(31)であって各前記三次元半導体素子はそれぞれ前記核形成面(17)からエピタキシャル成長した複数の前記三次元半導体素子(31)と、を含む光電子デバイス(1)であって、前記三次元半導体素子(31)は、前記三次元半導体素子の材料の面内で少なくとも1つの方向、及び、前記三次元半導体素子の材料の面に直交する少なくとも1つの方向において、前記核形成結晶材料の結晶格子の結晶配向と整列した前記三次元半導体素子の結晶格子の結晶学的配向を有する、
光電子デバイス(1)。 - 各前記三次元半導体素子(31)は、III−V族化合物、II−VI族化合物、または、IV族元素若しくはIV族化合物から選択される半導体材料から製造される、
請求項9に記載の光電子デバイス(1)。 - 各前記三次元半導体素子(31)の半導体材料は、III族からの第1の元素とV族からの第2の元素とから形成されるIII−V族化合物を含み、前記三次元半導体素子(31)は、前記第1の元素の極性を有する、
請求項9または10に記載の光電子デバイス(1)。 - 請求項1〜8のいずれか1項に記載の核形成構造(10)の製造方法であって、
周囲温度と、500℃と、の間の成長温度でスパッタリングすることによって前記核形成部(16)をエピタキシャル成長させるステップを含む、
核形成構造(10)の製造方法。 - 前記核形成部(16)と接触して位置し、前記核形成面(17)を部分的に覆う少なくとも1つの上部注入部(21)を形成するステップを含む核形成構造(10)の製造方法であって、以下のサブステップの、
−前記核形成面(17)を覆う遷移金属を含む第2の材料から形成される層のエピタキシャル成長のステップと、
−前記第2の材料から形成される層を覆う誘電体材料の層を堆積するステップと、
−前記核形成面(17)に面し、第2の材料上に開口する第1の開口を形成するように、前記第2の材料まで、前記誘電体材料を局所的かつ選択的にドライエッチングするステップと、
−前記核形成面(17)上に開口する開口(19)を形成するために、前記第1の開口を通して、前記核形成結晶材料まで、前記第2の材料を局所的かつ選択的にウェットエッチングするステップと、
を有する請求項12に記載の核形成構造(10)の製造方法。 - 600℃〜1200℃の温度で前記核形成部(16)を結晶化アニーリングするステップをさらに含む、
請求項12または13に記載の核形成構造(10)の製造方法。 - 請求項9〜11のいずれか1項に記載の光電子デバイス(1)の製造方法であって、
請求項1〜8のいずれか1項に記載の核形成構造(10)の製造工程と、
前記核形成構造(10)の製造工程と、前記核形成面(17)から複数の前記三次元半導体素子(31)を成長させる成長工程と、の間において、前記核形成部(16)が窒化アニーリングされないように、前記核形成面(17)から複数の前記三次元半導体素子(31)を成長させる成長工程と、
を備えた光電子デバイス(1)の製造方法。 - 前記製造工程と前記成長工程との間に、前記核形成面(17)が800℃以上のアニール温度及びアンモニアのフローに同時にさらされない、
請求項15に記載の光電子デバイス(1)の製造方法。
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FR3053054A1 (fr) | 2017-12-29 |
JP2019527470A (ja) | 2019-09-26 |
KR20190094143A (ko) | 2019-08-12 |
FR3053054B1 (fr) | 2021-04-02 |
US20190153619A1 (en) | 2019-05-23 |
EP3475471A1 (fr) | 2019-05-01 |
KR102409783B1 (ko) | 2022-06-16 |
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