JP2007221144A - 単結晶基板及びその製造方法 - Google Patents
単結晶基板及びその製造方法 Download PDFInfo
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- 239000000758 substrate Substances 0.000 title claims abstract description 143
- 239000013078 crystal Substances 0.000 title claims abstract description 127
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims description 55
- 230000008569 process Effects 0.000 title description 29
- 238000005498 polishing Methods 0.000 claims abstract description 17
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 37
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 34
- 229910052732 germanium Inorganic materials 0.000 claims description 34
- 229910052710 silicon Inorganic materials 0.000 claims description 34
- 239000010703 silicon Substances 0.000 claims description 34
- 238000002425 crystallisation Methods 0.000 claims description 23
- 230000008025 crystallization Effects 0.000 claims description 22
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 20
- 229910052594 sapphire Inorganic materials 0.000 claims description 10
- 239000010980 sapphire Substances 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 7
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 5
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 2
- 238000004544 sputter deposition Methods 0.000 claims description 2
- 239000013077 target material Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 146
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 57
- 239000000463 material Substances 0.000 description 14
- 235000012431 wafers Nutrition 0.000 description 10
- 238000001878 scanning electron micrograph Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000002109 crystal growth method Methods 0.000 description 2
- 229910021419 crystalline silicon Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000002210 silicon-based material Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012297 crystallization seed Substances 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- -1 hydrogen ions Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005224 laser annealing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C15/00—Fertiliser distributors
- A01C15/12—Fertiliser distributors with movable parts of the receptacle
- A01C15/122—Fertiliser distributors with movable parts of the receptacle with moving floor parts
-
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B49/00—Combined machines
- A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
- A01B49/06—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C15/00—Fertiliser distributors
- A01C15/005—Undercarriages, tanks, hoppers, stirrers specially adapted for seeders or fertiliser distributors
- A01C15/006—Hoppers
-
- 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
- C30B23/025—Epitaxial-layer growth characterised by the substrate
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
- H01L21/0237—Materials
- H01L21/02373—Group 14 semiconducting materials
- H01L21/02381—Silicon, silicon germanium, germanium
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
- H01L21/0237—Materials
- H01L21/0242—Crystalline insulating materials
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- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
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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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02524—Group 14 semiconducting materials
- H01L21/02532—Silicon, silicon germanium, germanium
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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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02538—Group 13/15 materials
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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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02612—Formation types
- H01L21/02617—Deposition types
- H01L21/02636—Selective deposition, e.g. simultaneous growth of mono- and non-monocrystalline semiconductor materials
- H01L21/02639—Preparation of substrate for selective deposition
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- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02656—Special treatments
- H01L21/02664—Aftertreatments
- H01L21/02667—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth
- H01L21/02675—Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth using laser beams
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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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/30625—With simultaneous mechanical treatment, e.g. mechanico-chemical polishing
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- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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Abstract
【解決手段】基板上に形成され、前記基板の一部が露出されるウィンドウを有する絶縁層と、前記ウィンドウに露出された前記基板の部分に形成される選択的結晶成長層と、前記絶縁層上で前記結晶成長層上に形成され、前記結晶成長層を結晶化シード層として用いて結晶化された単結晶層とを備える単結晶ウェーハである。これにより、ストッパによって結晶層の研磨深さを制御でき、従って良質の単結晶基板を製造できる。
【選択図】図1A
Description
2 絶縁層
2’ ウィンドウ
3 単結晶シリコン
4 ストッパ
Claims (19)
- 結晶性基板と、
前記基板に平行であって横方向に結晶成長された結晶層と、
前記結晶層に埋め込まれ、前記結晶層の研磨深さを制限する研磨ストッパと、を備えることを特徴とする単結晶基板。 - 前記基板と前記結晶層との間に設けられ、前記結晶層の横方向の成長を誘導する絶縁層をさらに備えることを特徴とする請求項1に記載の単結晶基板。
- 前記絶縁層には、前記基板の露出されるウィンドウが形成されていることを特徴とする請求項2に記載の単結晶基板。
- 前記ウィンドウ内に選択的結晶成長によるシード層が設けられていることを特徴とする請求項2に記載の単結晶基板。
- 前記基板は、サファイア、シリコン、ゲルマニウム基板のうち何れか一つであることを特徴とする請求項1ないし請求項4のうち何れか1項に記載の単結晶基板。
- 前記絶縁層は、SiO2絶縁層であることを特徴とする請求項2に記載の単結晶基板。
- 前記絶縁層は、SiO2絶縁層と該SiO2絶縁層上に積層されたSiNx層とを備えることを特徴とする請求項2に記載の単結晶基板。
- 結晶性基板上に、所定高さのストッパを形成する段階と、
前記基板上に前記ストッパを埋没する非晶質層を形成する段階と、
前記非晶質層の溶融及び固化によって前記基板に平行方向に結晶成長された結晶層を形成する段階と、
前記結晶層に埋没されたストッパの上端まで前記結晶層を研磨する段階と、を含むことを特徴とする単結晶基板の製造方法。 - 前記基板にストッパを形成する段階前に、
前記基板の露出されるウィンドウを有する絶縁層を前記基板に形成する段階をさらに含むことを特徴とする請求項8に記載の単結晶基板の製造方法。 - 前記ウィンドウによって露出された前記基板の表面に、エピタキシャル成長シード層を形成する段階をさらに含むことを特徴とする請求項9に記載の単結晶基板の製造方法。
- 前記基板は、シリコン、サファイア、ゲルマニウム基板のうち何れか一つであることを特徴とする請求項8に記載の単結晶基板の製造方法。
- 前記絶縁層は、シリコン酸化物(SiO2)層、シリコン窒化物(SiNx)層のうち何れか一つであることを特徴とする請求項9に記載の単結晶基板の製造方法。
- 前記絶縁層は、シリコン酸化物層及び該シリコン酸化物層上のシリコン窒化物層を備えることを特徴とする請求項9に記載の単結晶基板の製造方法。
- 前記非晶質層は、非晶質シリコン層または非晶質ゲルマニウム層であることを特徴とする請求項8に記載の単結晶基板の製造方法。
- 前記非晶質層は、多晶質シリコン層または多晶質ゲルマニウム層であることを特徴とする請求項8に記載の単結晶基板の製造方法。
- 前記非晶質層に多結晶が混在されていることを特徴とする請求項8に記載の単結晶基板の製造方法。
- 前記非晶質層の溶融は、ELAによって行われることを特徴とする請求項8ないし請求項16のうち何れか1項に記載の単結晶基板の製造方法。
- 前記絶縁層は、CVDまたはスパッタリング法によって形成されることを特徴とする請求項9、請求項10、請求項12及び請求項13のうち何れか1項に記載の単結晶基板の製造方法。
- 前記非晶質層を蒸着する段階と前記非晶質層の再結晶化段階との間に、結晶化対象物質層をアニーリングすることを特徴とする請求項8ないし請求項16のうち何れか1項に記載の単結晶基板の製造方法。
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KR1020060015151A KR100790869B1 (ko) | 2006-02-16 | 2006-02-16 | 단결정 기판 및 그 제조방법 |
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US (1) | US20070187668A1 (ja) |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008039915A1 (de) | 2007-08-28 | 2009-04-23 | Denso Corporation, Kariya | Steuervorrichtung für den automatischen Fahrbetrieb eines Fahrzeugs |
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KR20070082381A (ko) | 2007-08-21 |
US20070187668A1 (en) | 2007-08-16 |
KR100790869B1 (ko) | 2008-01-03 |
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