JP2006190909A - Iii族窒化物基板の製造方法 - Google Patents
Iii族窒化物基板の製造方法 Download PDFInfo
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- 239000000758 substrate Substances 0.000 title claims abstract description 81
- 150000004767 nitrides Chemical class 0.000 title claims abstract description 64
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 238000005520 cutting process Methods 0.000 claims abstract description 76
- 239000013078 crystal Substances 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000006061 abrasive grain Substances 0.000 claims description 42
- 229910002601 GaN Inorganic materials 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 229910003460 diamond Inorganic materials 0.000 claims description 11
- 239000010432 diamond Substances 0.000 claims description 11
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 6
- 229910052580 B4C Inorganic materials 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims description 5
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 5
- 229910010271 silicon carbide 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
- 239000002245 particle Substances 0.000 claims description 4
- 238000005336 cracking Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 24
- 238000002474 experimental method Methods 0.000 description 22
- 239000004065 semiconductor Substances 0.000 description 11
- 230000007547 defect Effects 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 9
- 239000002002 slurry Substances 0.000 description 8
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 7
- 238000003776 cleavage reaction Methods 0.000 description 7
- 230000007017 scission Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000003082 abrasive agent Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000001947 vapour-phase growth Methods 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910005542 GaSb Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B24B27/00—Other grinding machines or devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
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- 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
- C30B29/403—AIII-nitrides
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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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Abstract
【解決手段】 ワイヤ22によって構成されたワイヤ列21を用いて、六方晶系のIII族窒化物結晶からなるインゴット3を切断する。このとき、インゴット3及びワイヤ22のうち少なくとも一方をワイヤ22の延伸方向Bと直交する方向に送りながら、砥液を供給しつつインゴット3を切削することによりインゴット3を切断する。インゴット3を切削する際には、ワイヤ22の延伸方向Bをインゴット3の{1−100}面に対し3°以上傾斜させる。
【選択図】 図3
Description
図1は、本実施形態によるIII族窒化物基板の製造方法に用いられるマルチワイヤソー1の構成を示す斜視図である。図1を参照すると、マルチワイヤソー1は、ワーク支持台11、ガイドローラ12a〜12c、スラリーノズル13、並びにワイヤ列21を備える。なお、マルチワイヤソー1が備えるこれらの構成要素は、図示しない筐体によってそれぞれ支持されている。
インゴット:GaN単結晶
インゴット主面:(0001)面
インゴット外形:直径50.8mm、厚さ5mm
砥粒材料:単結晶ダイヤモンド
砥粒の平均粒径:6μm
砥液に占める砥粒の濃度:1リットルあたり1500ct(300g)
潤滑材(ラッピングオイル):鉱物油
送り速度:1時間あたり1.6mm
ワイヤ走行速度:1分あたり600m
ワイヤ直径:0.18mm
ワイヤ付加張力:25N
Claims (8)
- ワイヤ列を用いて、六方晶系のIII族窒化物結晶からなるインゴットを切断することによりIII族窒化物基板を製造する方法であって、
前記インゴット及び前記ワイヤ列のうち少なくとも一方を、前記ワイヤ列に含まれるワイヤの延伸方向と交差する方向に送りながら、砥液を供給しつつ前記インゴットを切削することにより前記インゴットを切断する工程を備え、
前記インゴットを切削する際に、前記ワイヤ列に含まれるワイヤの前記延伸方向を前記インゴットの{1−100}面に対し3°以上傾斜させることを特徴とする、III族窒化物基板の製造方法。 - 前記インゴットを切断する工程の前に、前記インゴットの(11−20)面に沿ったオリエンテーションフラット面を前記インゴットに形成する工程を更に備え、
前記インゴットを切断する工程の際に、前記インゴットの(11−20)面に対する前記延伸方向の傾斜角を27°以下とすることを特徴とする、請求項1に記載のIII族窒化物基板の製造方法。 - 前記インゴットを切削する際に、一または複数の別のインゴットを前記インゴットの送り方向と交差する方向に並べ、該別のインゴットを前記インゴットと共に一度に切削することを特徴とする、請求項1または2に記載のIII族窒化物基板の製造方法。
- 前記砥液に含まれる砥粒が、ダイヤモンド、シリコンカーバイド、ボロンカーバイド、アルミナ、窒化ケイ素、窒化アルミ、及び窒化ガリウムのうち少なくとも一種類の材料を含むことを特徴とする、請求項1〜3のいずれか一項に記載のIII族窒化物基板の製造方法。
- 前記砥液に占める砥粒の濃度を1リットルあたり40g以上300g以下とすることを特徴とする、請求項1〜4のいずれか一項に記載のIII族窒化物基板の製造方法。
- 前記砥液に含まれる砥粒の平均粒径を1μm以上15μm以下とすることを特徴とする、請求項1〜5のいずれか一項に記載のIII族窒化物基板の製造方法。
- 前記インゴットを切削する際の送り速度を1時間あたり0.4mm以上2.4mm以下とすることを特徴とする、請求項1〜6のいずれか一項に記載のIII族窒化物基板の製造方法。
- 前記ワイヤ列に、直径が0.12mm以上0.2mm以下のワイヤを用いることを特徴とする、請求項1〜7のいずれか一項に記載のIII族窒化物基板の製造方法。
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005002970A JP4525353B2 (ja) | 2005-01-07 | 2005-01-07 | Iii族窒化物基板の製造方法 |
KR1020067013173A KR20070091245A (ko) | 2005-01-07 | 2005-12-27 | Ⅲ족 질화물 기판의 제조 방법 |
PCT/JP2005/023918 WO2006073094A1 (ja) | 2005-01-07 | 2005-12-27 | Iii族窒化物基板の製造方法 |
CNB200580001736XA CN100419967C (zh) | 2005-01-07 | 2005-12-27 | Ⅲ族氮化物基板的制造方法 |
CN2008101441453A CN101335205B (zh) | 2005-01-07 | 2005-12-27 | Ⅲ族氮化物基板的制造方法 |
EP05822768A EP1739731A4 (en) | 2005-01-07 | 2005-12-27 | METHOD FOR MANUFACTURING GROUP III NITRIDE SUBSTRATE |
TW102122767A TW201347025A (zh) | 2005-01-07 | 2005-12-30 | 第三族氮化物基板之製造方法 |
TW94147808A TWI405254B (zh) | 2005-01-07 | 2005-12-30 | Production method of group III nitride substrate |
US11/486,216 US7223155B2 (en) | 2005-01-07 | 2006-07-14 | Method of producing III-nitride substrate |
US11/646,397 US7464702B2 (en) | 2005-01-07 | 2006-12-28 | Method of producing III-nitride substrate |
HK07107889A HK1100100A1 (en) | 2005-01-07 | 2007-07-20 | Process for producing group III nitride substrate |
US12/219,249 US20080277667A1 (en) | 2005-01-07 | 2008-07-18 | Method of producing III-nitride substrate |
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JP2005002970A JP4525353B2 (ja) | 2005-01-07 | 2005-01-07 | Iii族窒化物基板の製造方法 |
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JP2009023646A Division JP5003696B2 (ja) | 2009-02-04 | 2009-02-04 | Iii族窒化物基板及びその製造方法 |
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JP2006190909A true JP2006190909A (ja) | 2006-07-20 |
JP4525353B2 JP4525353B2 (ja) | 2010-08-18 |
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US (3) | US7223155B2 (ja) |
EP (1) | EP1739731A4 (ja) |
JP (1) | JP4525353B2 (ja) |
KR (1) | KR20070091245A (ja) |
CN (2) | CN100419967C (ja) |
HK (1) | HK1100100A1 (ja) |
TW (2) | TW201347025A (ja) |
WO (1) | WO2006073094A1 (ja) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010005773A (ja) * | 2008-06-30 | 2010-01-14 | Shin Etsu Handotai Co Ltd | ワークの切断方法 |
WO2010027044A1 (ja) * | 2008-09-08 | 2010-03-11 | 住友電気工業株式会社 | 基板、エピタキシャル層付基板およびそれらの製造方法 |
WO2012090828A1 (ja) | 2010-12-28 | 2012-07-05 | 三菱化学株式会社 | 六方晶系半導体板状結晶の製造方法 |
WO2012165108A1 (ja) * | 2011-06-02 | 2012-12-06 | 住友電気工業株式会社 | 炭化珪素基板の製造方法 |
US20130032013A1 (en) * | 2011-08-04 | 2013-02-07 | Sumitomo Electric Industries, Ltd. | Method of manufacturing group iii nitride crystal substrate |
JP2013258243A (ja) * | 2012-06-12 | 2013-12-26 | Sumitomo Electric Ind Ltd | 化合物半導体基板の製造方法および製造装置 |
WO2014034841A1 (ja) * | 2012-09-03 | 2014-03-06 | 日立金属株式会社 | 高硬度材料のマルチワイヤーソーによる切断方法 |
JP2015135902A (ja) * | 2014-01-17 | 2015-07-27 | 旭ダイヤモンド工業株式会社 | ウェハの製造方法およびウェハの製造装置 |
JP2015134390A (ja) * | 2014-01-17 | 2015-07-27 | 日立金属株式会社 | 高硬度材料のマルチワイヤソーによる切断方法 |
US9175417B2 (en) | 2011-09-15 | 2015-11-03 | Sciocs Company Limited | Method for manufacturing a nitride semiconductor substrate |
JP2015222766A (ja) * | 2014-05-22 | 2015-12-10 | 新日鐵住金株式会社 | 炭化珪素単結晶インゴットのワイヤー加工方法 |
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US20130032013A1 (en) * | 2011-08-04 | 2013-02-07 | Sumitomo Electric Industries, Ltd. | Method of manufacturing group iii nitride crystal substrate |
US9175417B2 (en) | 2011-09-15 | 2015-11-03 | Sciocs Company Limited | Method for manufacturing a nitride semiconductor substrate |
JP2013258243A (ja) * | 2012-06-12 | 2013-12-26 | Sumitomo Electric Ind Ltd | 化合物半導体基板の製造方法および製造装置 |
JPWO2014034841A1 (ja) * | 2012-09-03 | 2016-08-08 | 日立金属株式会社 | 高硬度材料のマルチワイヤーソーによる切断方法 |
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JP2015222766A (ja) * | 2014-05-22 | 2015-12-10 | 新日鐵住金株式会社 | 炭化珪素単結晶インゴットのワイヤー加工方法 |
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US20060249135A1 (en) | 2006-11-09 |
US20070105485A1 (en) | 2007-05-10 |
JP4525353B2 (ja) | 2010-08-18 |
HK1100100A1 (en) | 2007-09-07 |
TWI405254B (zh) | 2013-08-11 |
EP1739731A1 (en) | 2007-01-03 |
CN101335205A (zh) | 2008-12-31 |
KR20070091245A (ko) | 2007-09-10 |
CN100419967C (zh) | 2008-09-17 |
CN101335205B (zh) | 2011-01-26 |
US7223155B2 (en) | 2007-05-29 |
US7464702B2 (en) | 2008-12-16 |
CN1906740A (zh) | 2007-01-31 |
EP1739731A4 (en) | 2009-11-11 |
TW200629396A (en) | 2006-08-16 |
WO2006073094A1 (ja) | 2006-07-13 |
US20080277667A1 (en) | 2008-11-13 |
TW201347025A (zh) | 2013-11-16 |
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