JP5664239B2 - 導電性GaAs単結晶と導電性GaAs単結晶基板およびそれらの作製方法 - Google Patents
導電性GaAs単結晶と導電性GaAs単結晶基板およびそれらの作製方法 Download PDFInfo
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- JP5664239B2 JP5664239B2 JP2010521233A JP2010521233A JP5664239B2 JP 5664239 B2 JP5664239 B2 JP 5664239B2 JP 2010521233 A JP2010521233 A JP 2010521233A JP 2010521233 A JP2010521233 A JP 2010521233A JP 5664239 B2 JP5664239 B2 JP 5664239B2
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- 239000013078 crystal Substances 0.000 title claims description 112
- 239000000758 substrate Substances 0.000 title claims description 93
- 229910001218 Gallium arsenide Inorganic materials 0.000 title claims description 78
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000002244 precipitate Substances 0.000 claims description 58
- 238000000137 annealing Methods 0.000 claims description 38
- 230000007547 defect Effects 0.000 claims description 32
- 238000007689 inspection Methods 0.000 claims description 11
- 230000000052 comparative effect Effects 0.000 description 16
- 238000005498 polishing Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- 238000005259 measurement Methods 0.000 description 9
- 238000003776 cleavage reaction Methods 0.000 description 6
- 230000007017 scission Effects 0.000 description 6
- 238000001004 secondary ion mass spectrometry Methods 0.000 description 6
- 238000000149 argon plasma sintering Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000007847 structural defect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
-
- 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
- C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
-
- 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
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/40—AIIIBV compounds wherein A is B, Al, Ga, In or Tl and B is N, P, As, Sb or Bi
- C30B29/42—Gallium arsenide
-
- 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
- C30B33/00—After-treatment of single crystals or homogeneous polycrystalline material with defined structure
-
- 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
- C30B33/00—After-treatment of single crystals or homogeneous polycrystalline material with defined structure
- C30B33/02—Heat treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Description
まず、本発明は導電性GaAs単結晶中の大きなサイズの析出物の低減を第一の目的としているが、比較例1〜5のGaAs単結晶基板では、赤外光散乱評価で得られた1mm2視野におけるサイズ30nm以上の析出物数が25個以上であるのに対し、実施例1〜14では4個以下と格段に少なくなっている。これは、密度に換算すると、400個cm-2以下に相当する。
Claims (6)
- 1×1017cm-3より大きいSi原子濃度を有し、結晶中に含有するサイズ30nm以上の析出物の密度が400個cm-2以下であることを特徴とする導電性GaAs単結晶。
- 5×102cm-2以下または1×103cm-2以上の転位密度を有することを特徴とする請求項1に記載の導電性GaAs単結晶。
- 結晶成長後に成長炉内で1130℃以上の温度で10時間以上アニールされたものであることを特徴とする請求項1に記載の導電性GaAs単結晶。
- 請求項1に記載の導電性GaAs単結晶から切り出されて研磨された鏡面を有する導電性GaAs単結晶基板。
- 前記鏡面内において表面異物検査装置で測定された0.265μm以上のサイズの微小欠陥密度が0.5個/cm2以下であることを特徴とする請求項4に記載の導電性GaAs単結晶基板。
- 請求項1に記載の導電性GaAs単結晶を作製するための方法であって、前記導電性GaAs結晶を成長させた後に1130℃以上の温度で10時間以上アニールすることを特徴とする導電性GaAs単結晶の作製方法。
Priority Applications (1)
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---|---|---|---|
JP2010521233A JP5664239B2 (ja) | 2009-01-20 | 2010-01-20 | 導電性GaAs単結晶と導電性GaAs単結晶基板およびそれらの作製方法 |
Applications Claiming Priority (4)
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---|---|---|---|
JP2009010222 | 2009-01-20 | ||
JP2009010222 | 2009-01-20 | ||
JP2010521233A JP5664239B2 (ja) | 2009-01-20 | 2010-01-20 | 導電性GaAs単結晶と導電性GaAs単結晶基板およびそれらの作製方法 |
PCT/JP2010/050628 WO2010084878A1 (ja) | 2009-01-20 | 2010-01-20 | 導電性GaAsの結晶と基板およびそれらの作製方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2010084878A1 JPWO2010084878A1 (ja) | 2012-07-19 |
JP5664239B2 true JP5664239B2 (ja) | 2015-02-04 |
Family
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JP2010521233A Active JP5664239B2 (ja) | 2009-01-20 | 2010-01-20 | 導電性GaAs単結晶と導電性GaAs単結晶基板およびそれらの作製方法 |
Country Status (6)
Country | Link |
---|---|
US (4) | US20110274879A1 (ja) |
EP (1) | EP2390387B1 (ja) |
JP (1) | JP5664239B2 (ja) |
CN (1) | CN102292477B (ja) |
TW (2) | TW201540881A (ja) |
WO (1) | WO2010084878A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016009660A1 (ja) * | 2014-07-17 | 2016-01-21 | 住友電気工業株式会社 | GaAs結晶 |
US11408091B2 (en) | 2018-02-23 | 2022-08-09 | Sumitomo Electric Industries, Ltd. | Gallium arsenide crystal substrate |
WO2020121526A1 (ja) * | 2018-12-14 | 2020-06-18 | 住友電気工業株式会社 | 半絶縁性GaAs基板およびGaAs基板の製造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4839397A (ja) * | 1971-09-28 | 1973-06-09 | ||
JPH0537015A (ja) * | 1991-08-01 | 1993-02-12 | Mitsubishi Kasei Corp | 新規なPL発光を示すGaAs結晶とその製造方法 |
JP2002029881A (ja) * | 2000-07-10 | 2002-01-29 | Hitachi Cable Ltd | 化合物半導体単結晶の製造方法 |
JP2004115339A (ja) * | 2002-09-27 | 2004-04-15 | Dowa Mining Co Ltd | 縦型ボート法によるGaAs単結晶の製造方法及び縦型ボート法によるGaAs単結晶の製造装置 |
JP2007081372A (ja) * | 2005-07-01 | 2007-03-29 | Freiberger Compound Materials Gmbh | Iii−v族ウェーハの加熱装置およびプロセス、ならびにアニールiii−v族半導体単結晶ウェーハ |
Family Cites Families (19)
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US4384398A (en) * | 1981-10-26 | 1983-05-24 | Bell Telephone Laboratories, Incorporated | Elimination of silicon pyramids from epitaxial crystals of GaAs and GaAlAs |
IT1207497B (it) * | 1985-05-29 | 1989-05-25 | Montedison Spa | Monocristalli di arseniuro di gallio a bassa densita' di dislocazioni e di elevata purezza. |
US4840699A (en) | 1987-06-12 | 1989-06-20 | Ghemini Technologies | Gallium arsenide crystal growth |
JPH02145499A (ja) * | 1988-12-28 | 1990-06-04 | Tsuaitowan Faaren Gonie Jishu Ienjiou Yuen | 砒化ガリウム単結晶の成長方法 |
JPH0831409B2 (ja) * | 1990-02-14 | 1996-03-27 | 株式会社東芝 | 化合物半導体装置およびその製造方法 |
DE4021252A1 (de) * | 1990-07-04 | 1992-01-09 | Hitachi Cable | Gaas-einkristall mit geringer versetzungsdichte und verfahren zum zuechten desselben |
JPH0543400A (ja) | 1991-08-02 | 1993-02-23 | Hitachi Cable Ltd | GaAs単結晶の製造方法 |
JP3500541B2 (ja) * | 1994-02-15 | 2004-02-23 | 富士通株式会社 | 単電子トンネル接合装置の製造方法 |
US5612014A (en) * | 1994-08-10 | 1997-03-18 | Sumitomo Electric Industries, Ltd. | Compound semiconductor crystal |
JPH09190989A (ja) * | 1996-01-09 | 1997-07-22 | Japan Energy Corp | 化合物半導体ウェハの製造方法 |
JP2001053005A (ja) * | 1999-08-06 | 2001-02-23 | Sumitomo Electric Ind Ltd | 化合物半導体エピタキシャルウェハおよびその製造方法 |
JP4200690B2 (ja) * | 2002-05-30 | 2008-12-24 | 日立電線株式会社 | GaAsウェハの製造方法 |
US7175707B2 (en) * | 2003-03-24 | 2007-02-13 | Hitachi Cable Ltd. | P-type GaAs single crystal and its production method |
US20070079751A1 (en) * | 2003-07-17 | 2007-04-12 | Fumio Matsumoto | Inp single crystal, gaas single crystal, and method for production thereof |
US7214269B2 (en) * | 2004-10-15 | 2007-05-08 | Hitachi Cable, Ltd. | Si-doped GaAs single crystal substrate |
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JP5111104B2 (ja) | 2005-03-31 | 2012-12-26 | Dowaエレクトロニクス株式会社 | SiドープGaAs単結晶インゴットおよびその製造方法 |
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2010
- 2010-01-20 TW TW104125136A patent/TW201540881A/zh unknown
- 2010-01-20 EP EP10733485.6A patent/EP2390387B1/en active Active
- 2010-01-20 TW TW099101509A patent/TWI545237B/zh active
- 2010-01-20 JP JP2010521233A patent/JP5664239B2/ja active Active
- 2010-01-20 CN CN201080005056.6A patent/CN102292477B/zh active Active
- 2010-01-20 US US13/145,145 patent/US20110274879A1/en not_active Abandoned
- 2010-01-20 WO PCT/JP2010/050628 patent/WO2010084878A1/ja active Application Filing
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2013
- 2013-07-29 US US13/953,421 patent/US20130312878A1/en not_active Abandoned
-
2018
- 2018-05-10 US US15/976,184 patent/US11017913B2/en active Active
-
2021
- 2021-04-19 US US17/233,845 patent/US11955251B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS4839397A (ja) * | 1971-09-28 | 1973-06-09 | ||
JPH0537015A (ja) * | 1991-08-01 | 1993-02-12 | Mitsubishi Kasei Corp | 新規なPL発光を示すGaAs結晶とその製造方法 |
JP2002029881A (ja) * | 2000-07-10 | 2002-01-29 | Hitachi Cable Ltd | 化合物半導体単結晶の製造方法 |
JP2004115339A (ja) * | 2002-09-27 | 2004-04-15 | Dowa Mining Co Ltd | 縦型ボート法によるGaAs単結晶の製造方法及び縦型ボート法によるGaAs単結晶の製造装置 |
JP2007081372A (ja) * | 2005-07-01 | 2007-03-29 | Freiberger Compound Materials Gmbh | Iii−v族ウェーハの加熱装置およびプロセス、ならびにアニールiii−v族半導体単結晶ウェーハ |
Non-Patent Citations (2)
Title |
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JPN6014020814; M. Suezawa et al.: 'Optical studies of heat-treated Si-doped GaAs bulk crystals' J. Appl. Phys. Vol. 69, No. 3, 19910201, pp. 1618-1624, American Institute of Physics * |
Also Published As
Publication number | Publication date |
---|---|
US20180261354A1 (en) | 2018-09-13 |
EP2390387B1 (en) | 2021-06-23 |
TW201540881A (zh) | 2015-11-01 |
WO2010084878A1 (ja) | 2010-07-29 |
CN102292477A (zh) | 2011-12-21 |
TWI545237B (zh) | 2016-08-11 |
EP2390387A4 (en) | 2014-08-06 |
US11955251B2 (en) | 2024-04-09 |
US20110274879A1 (en) | 2011-11-10 |
TWI561691B (ja) | 2016-12-11 |
EP2390387A1 (en) | 2011-11-30 |
CN102292477B (zh) | 2015-11-25 |
US20130312878A1 (en) | 2013-11-28 |
JPWO2010084878A1 (ja) | 2012-07-19 |
US20210241934A1 (en) | 2021-08-05 |
US11017913B2 (en) | 2021-05-25 |
TW201035395A (en) | 2010-10-01 |
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