KR100979148B1 - 반도체 웨이퍼 및 그 제조 방법 - Google Patents
반도체 웨이퍼 및 그 제조 방법 Download PDFInfo
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- KR100979148B1 KR100979148B1 KR1020080025032A KR20080025032A KR100979148B1 KR 100979148 B1 KR100979148 B1 KR 100979148B1 KR 1020080025032 A KR1020080025032 A KR 1020080025032A KR 20080025032 A KR20080025032 A KR 20080025032A KR 100979148 B1 KR100979148 B1 KR 100979148B1
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- Prior art keywords
- oxide layer
- layer
- oxide
- semiconductor wafer
- lattice constant
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 48
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- NWAIGJYBQQYSPW-UHFFFAOYSA-N azanylidyneindigane Chemical compound [In]#N NWAIGJYBQQYSPW-UHFFFAOYSA-N 0.000 claims description 31
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- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 13
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- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
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- 229910052733 gallium Inorganic materials 0.000 claims description 4
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- H—ELECTRICITY
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
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- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02172—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides
- H01L21/02175—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides characterised by the metal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01L21/02142—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing silicon and at least one metal element, e.g. metal silicate based insulators or metal silicon oxynitrides
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- H01—ELECTRIC ELEMENTS
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- H01L21/02164—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material being a silicon oxide, e.g. SiO2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
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- H01L21/022—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being a laminate, i.e. composed of sublayers, e.g. stacks of alternating high-k metal oxides
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- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/02227—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process
- H01L21/02255—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by thermal treatment
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- H—ELECTRICITY
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Abstract
Description
Claims (26)
- - 규소로 구성되는 단결정 기판 웨이퍼(1)와,- 전기 절연 물질을 포함하는 2nm 내지 10nm 두께의 제1 비결정 중간층(2)과,- 입방 Ia-3 결정 구조와, (Me12O3)1-x(Me22O3)x의 조성(여기서, Me1과 Me2는 각각 금속이고, 0≤x≤1)과, 기판 웨이퍼 물질의 격자 상수와 0% 내지 5%만큼 상이한 격자 상수를 갖는 단결정의 제1 산화층(3)과,- 상기 제1 산화층(3)에 인접한 단결정의 제2 산화층(4)을 소정의 순서로 포함하고,상기 제2 산화층(4)은 입방 Ia-3 결정 구조와, (Me32O3)1-y(Me42O3)y의 조성을 가지며, 여기서 Me3과 Me4는 각각 금속이고 0≤y≤1이며, y는 제1 산화층(3)의 경계에서 값 y1로 시작하고, 제2 산화층(4)의 두께에 걸쳐 물질의 격자 상수를 변화시키기 위해 제2 산화층(4)의 두께에 걸쳐 변하며, 제2 산화층(4)의 표면에서 값 y2로 끝나며, 상기 값 y1은 제1 산화층(3)에 대한 경계에서의 제2 산화층(4)의 격자 상수가 제1 산화층(3)의 물질의 격자 상수에 비해 0% 내지 2% 만큼 상이하도록 선택되는 것인 반도체 웨이퍼.
- 제1항에 있어서, 상기 기판 웨이퍼(1)는 90% 내지 100%의 규소로 이루어지는 것인 반도체 웨이퍼.
- 제1항 또는 제2항에 있어서, 상기 제1 비결정 중간층(2)의 전기 절연 물질은 산화규소 혹은 금속 규산염 혹은 이들의 혼합물을 포함하는 것인 반도체 웨이퍼.
- 제1항 또는 제2항에 있어서, Me1과 Me2는 각각 희토류 금속 또는 전이 금속인 것인 반도체 웨이퍼.
- 제4항에 있어서, Me1은 프라세오디뮴이고 Me2는 이트륨인 것인 반도체 웨이퍼.
- 제1항 또는 제2항에 있어서, 상기 제1 산화층(3)은 그 전체 두께에 걸쳐 균일한 격자 상수를 갖는 것인 반도체 웨이퍼.
- 삭제
- 제1항에 있어서, Me3과 Me4는 각각 희토류 금속 또는 전이 금속인 것인 반도체 웨이퍼.
- 제8항에 있어서, Me3은 프라세오디뮴이고 Me4는 이트륨인 것인 반도체 웨이 퍼.
- 제1항 또는 제2항에 있어서, 단결정 반도체 물질로 이루어진 표면층(8)을 더 포함하는 것인 반도체 웨이퍼.
- 제10항에 있어서, 전기 절연 물질을 포함하며, 단결정 반도체 물질로 이루어진 표면층(8)에 인접하게 배치되어 있는 제2 비결정 중간층(7)을 더 포함하는 것인 반도체 웨이퍼.
- 제1항에 있어서, Me52Ow(여기서, Me5는 금속이고, 3<w≤4)로 이루어진 단결정의 제3 산화층(51)을 더 포함하는 것인 반도체 웨이퍼.
- 제12항에 있어서, Me5는 희토류 금속 또는 전이 금속인 것인 반도체 웨이퍼.
- 제13항에 있어서, Me5는 프라세오디뮴인 것인 반도체 웨이퍼.
- 제12항에 있어서, 제3 산화층(51)에 인접하는 단결정의 제4 산화층(6)을 더 포함하며, 상기 제4 산화층(6)은 입방 Ia-3 결정 구조와, (Me62O3)1-z(Me72O3)z의 조성을 가지며, 여기서 Me6과 Me7은 각각 금속이고 0≤z≤1이며, z는 제3 산화층(51) 에 대한 경계에서 값 z1로 시작하고, 제4 산화층(6)의 두께에 걸쳐 그 물질의 격자 상수의 변화를 얻기 위해 제4 산화층(6)의 두께에 걸쳐 변하며, 제4 산화층(6)의 표면에서 값 z2로 끝나는 것인 반도체 웨이퍼.
- 제15항에 있어서, 단결정 반도체 물질로 이루어진 표면층(8)을 더 포함하는 것인 반도체 웨이퍼.
- 제1항에 있어서,- 제2 산화층(4)에 인접하는 단결정의 제3 산화층(52)으로서, 입방 Ia-3 결정 구조와 Me52O3의 조성을 가지며, 여기서 Me5는 Me52Ow(3<w≤4)의 조성을 갖는 산화물을 또한 형성 가능한 금속인 것인 제3 산화층(52)과,- 제3 산화층(52)에 인접하는 단결정의 제4 산화층(6)으로서, 입방 Ia-3 결정 구조와 (Me62O3)1-z(Me72O3)z의 조성을 가지며, 여기서 Me6과 Me7은 각각 금속이고 0≤z≤1이며, z는 제3 산화층(52)에 대한 경계에서 값 z1로 시작하고, 제4 산화층(6)의 두께에 걸쳐 그 물질의 격자 상수의 변화를 얻기 위해 제4 산화층(6)의 두께에 걸쳐 변하며, 제4 산화층(6)의 표면에서 값 z2로 끝나는 것인 제4 산화층(6)과,- 제4 산화층(6)에 인접하는 제2 비결정 중간층(7)으로서, 전기 절연 물질을 포함하고 0.5nm 내지 100nm의 두께를 갖는 것인 제2 비결정 중간층(7)과,- 단결정 반도체 물질로 이루어진 표면층(8)을 더 포함하는 것인 반도체 웨이퍼.
- 제10항에 있어서, 상기 표면층(8)의 반도체 물질은 규소(Si), 게르마늄(Ge), 실리콘-게르마늄(Si1 - aGea, 0<a<1), 탄화규소(SiC), 갈륨인(GaP), 알루미늄인(AlP), 질화칼륨(GaN), 갈륨비소(GaAs), 알루미늄비소(AlAs), 인듐비소(InAs), 질화인듐(InN), 인듐인(InP), 갈륨인듐인(Ga0 .51In0 .49P), 인듐비소인(In0 .51As0 .49P), 황화아연(ZnS) 및 산화아연(ZnO)인 것인 반도체 웨이퍼.
- 제1항에 따른 반도체 웨이퍼를 제조하기 위한 방법으로서,a) 기판 웨이퍼(1)를 마련하는 단계와,b) 기판 웨이퍼(1)의 적어도 한 표면 상에 제1 산화층(3)을 에피텍셜 증착하는 단계와,c) 제1 산화층(3)의 표면 상에 단결정의 제2 산화층(4)을 에피텍셜 증착하는 단계와,e) 그 결과로 생긴 층상 웨이퍼를 10 내지 100분 동안 200 내지 1000℃의 온도에서 10-6 mbar 내지 1 bar의 부분 압력으로 산소를 포함하는 분위기 하에서 열처리하여 기판 웨이퍼(1)와 제1 산화층(3) 사이의 경계에 제1 비결정 중간층(2)을 형성하는 단계를 소정의 순서로 포함하고,상기 제2 산화층(4)은 입방 Ia-3 결정 구조와, (Me32O3)1-y(Me42O3)y의 조성을 가지며, 여기서 Me3과 Me4는 각각 금속이고 0≤y≤1이며, y는 제1 산화층(3)의 경계에서 값 y1로 시작하고, 제2 산화층(4)의 두께에 걸쳐 그 물질의 격자 상수의 변화를 얻기 위해 제2 산화층(4)의 두께에 걸쳐 변하며, 제2 산화층(4)의 표면에서 값 y2로 끝나며, 상기 값 y1은 제1 산화층(3)에 대한 경계에서의 제2 산화층(4)의 격자 상수가 제1 산화층(3)의 물질의 격자 상수에 비해 0% 내지 2% 만큼 상이하도록 선택되는 것인 반도체 웨이퍼 제조 방법.
- 제1항에 따른 반도체 웨이퍼를 제조하기 위한 방법으로서,a) Si(111)의 결정 격자 배향을 갖는 기판 웨이퍼(1)를 마련하는 단계와,b) 육방 결정 구조와, (Me12O3)1-x(Me22O3)x의 조성(여기서, Me1과 Me2는 각각 금속이고, 0≤x≤1)과, 기판 웨이퍼 물질의 격자 상수에 비해 0% 내지 5%만큼 상이한 격자 상수를 갖는 단결정의 제1 산화층(31)을 기판 웨이퍼(1)의 적어도 한 표면 상에 에피텍셜적 증착하는 단계와,c) 제1 산화층(3)의 표면 상에 단결정의 제2 산화층(4)을 에피텍셜 증착하는 단계와,e) 그 결과로 생긴 층상 웨이퍼를 10 내지 100분 동안 200 내지 1000℃의 온도에서 10-6 mbar 내지 1 bar의 부분 압력으로 산소를 포함하는 분위기 하에서 열처리하여 육방 결정 구조를 갖는 제1 산화층(31)을 입방 Ia-3 결정 구조를 갖는 제1 산화층(3)으로 변환시킴으로써, 기판 웨이퍼(1)와 제1 산화층(3) 사이의 경계에 제1 비결정 중간층(2)을 형성하는 단계를 소정의 순서로 포함하고,상기 제2 산화층(4)은 입방 Ia-3 결정 구조와, (Me32O3)1-y(Me42O3)y의 조성을 가지며, 여기서 Me3과 Me4는 각각 금속이고 0≤y≤1이며, y는 제1 산화층(3)의 경계에서 값 y1로 시작하고, 제2 산화층(4)의 두께에 걸쳐 그 물질의 격자 상수의 변화를 얻기 위해 제2 산화층(4)의 두께에 걸쳐 변하며, 제2 산화층(4)의 표면에서 값 y2로 끝나며, 상기 값 y1은 제1 산화층(3)에 대한 경계에서의 제2 산화층(4)의 격자 상수가 제1 산화층(3)의 물질의 격자 상수에 비해 0% 내지 2% 만큼 상이하도록 선택되는 것인 반도체 웨이퍼 제조 방법.
- 삭제
- 제19항 또는 제20항에 있어서, g) 단결정 반도체 물질로 이루어진 표면층(8)을 제2 산화층(4)의 표면 상에 에피텍셜 증착하는 단계를 더 포함하며, 상기 단계 g)는 상기 단계 e)에 후속하여 수행되는 것인 반도체 웨이퍼 제조 방법.
- 제19항 또는 제20항에 있어서, d) 단결정의 제3 산화층(50)을 제2 산화층(4)의 표면 상에 에피텍셜 증착하는 단계를 더 포함하며, 상기 제3 산화층(50)은 입방 Ia-3 결정 구조와 Me52O3의 조성을 가지며, 여기서 Me5는 Me52Ow(3<w≤4)의 조성을 갖는 산화물을 또한 형성 가능한 금속이며, 상기 단계 d)는 단계 c) 이후와 단계 e)의 이전에 행해지며, 상기 제3 산화층(50)은 단계 e) 동안 Me52Ow(3<w≤4)로 이루어진 제3 산화층(51)으로 변환되는 것인 반도체 웨이퍼 제조 방법.
- 제23항에 있어서, f) 단결정의 제4 산화층(6)을 제3 산화층(51)의 표면 상에 에피텍셜 증착하는 단계를 더 포함하며, 상기 제4 산화층(6)은 입방 Ia-3 결정 구조와 (Me62O3)1-z(Me72O3)z의 조성을 가지며, 여기서 Me6과 Me7은 각각 금속이고 0≤z≤1이며, z는 제3 산화층(51)에 대한 경계에서 값 z1로 시작하고, 제4 산화층(6)의 두께에 걸쳐 그 물질의 격자 상수의 변화를 얻기 위해 제4 산화층(6)의 두께에 걸쳐 변하며, 제4 산화층(6)의 표면에서 값 z2로 끝나며, 상기 단계 f)는 단계 e) 이후에 수행되는 것인 반도체 웨이퍼 제조 방법.
- 제24항에 있어서, g) 단결정의 반도체 물질로 이루어진 표면층(8)을 제4 산화층(6)의 표면 상에 에피텍셜 증착하는 단계를 더 포함하며, 상기 단계 g)는 단계 f) 이후에 수행되는 것인 반도체 웨이퍼 제조 방법.
- 제25항에 있어서, h) 그 결과로 생긴 층상 웨이퍼를 10 내지 100분 동안 200 내지 1000℃의 온도에서 열처리하여 제4 산화층(6)과 표면층(8) 사이의 경계에 제2 비결정 중간층(7)을 형성하고, Me52Ow(3<w≤4)로 이루어진 단결정의 제3 산화층(51)을 입방 Ia-3 결정 구조와 Me52O3의 조성을 갖는 단결정의 제3 산화층(52)으로 변환시키는 단계를 더 포함하며, 상기 제2 비결정 중간층(7)은 전기 절연 물질을 포함하고 0.5nm 내지 100nm의 두께를 갖는 것인 반도체 웨이퍼 제조 방법.
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JP5490271B2 (ja) | 2014-05-14 |
JP2013102212A (ja) | 2013-05-23 |
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US7785706B2 (en) | 2010-08-31 |
EP1975988B1 (en) | 2015-02-25 |
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US20080241519A1 (en) | 2008-10-02 |
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SG146535A1 (en) | 2008-10-30 |
CN101276791B (zh) | 2010-06-02 |
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