JP2007053385A - 半導体積層構造物と窒化物半導体結晶基板及び窒化物半導体素子の製造方法 - Google Patents
半導体積層構造物と窒化物半導体結晶基板及び窒化物半導体素子の製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 212
- 150000004767 nitrides Chemical class 0.000 title claims abstract description 175
- 239000013078 crystal Substances 0.000 title claims abstract description 144
- 239000000758 substrate Substances 0.000 title claims abstract description 128
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 claims abstract description 49
- 230000002265 prevention Effects 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims description 56
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- 229920005989 resin Polymers 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 10
- 238000000354 decomposition reaction Methods 0.000 claims description 8
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 6
- 239000003870 refractory metal Substances 0.000 claims description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 5
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 4
- 229920002120 photoresistant polymer Polymers 0.000 claims description 4
- 229920001187 thermosetting polymer Polymers 0.000 claims description 4
- 230000002942 anti-growth Effects 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 11
- 239000010410 layer Substances 0.000 description 94
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 8
- 229910002601 GaN Inorganic materials 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 229910052594 sapphire Inorganic materials 0.000 description 4
- 239000010980 sapphire Substances 0.000 description 4
- 238000005979 thermal decomposition reaction Methods 0.000 description 4
- 230000005669 field effect Effects 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical class N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 208000012868 Overgrowth Diseases 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
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- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
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- 230000005693 optoelectronics Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004549 pulsed laser deposition Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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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- C30B29/40—AIIIBV compounds wherein A is B, Al, Ga, In or Tl and B is N, P, As, Sb or Bi
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- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
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Abstract
【解決手段】半導体積層構造物100は、窒化物半導体結晶面である上面を有する基礎基板101と、上記基礎基板上で間隔を置いて水平方向に延長された流通孔パターン105を囲う成長防止膜103と、上記流通孔パターン105の間の領域で上記基礎基板101の上面と接触するよう上記基礎基板上に形成され、上記成長防止膜103を覆う窒化物半導体結晶層107を含む。上記半導体積層構造物は、低欠陥高品質の窒化物半導体結晶層、窒化物半導体結晶基板及び窒化物半導体素子を得ることに利用される。
【選択図】図1
Description
101 基礎基板
103 成長防止膜
105 流通孔パターン
107 窒化物半導体結晶層
131 n型クラッド層
132 活性層
133 p型クラッド層
200 窒化物半導体LED素子
Claims (25)
- 窒化物半導体結晶面である上面を有する基礎基板と、
前記基礎基板上で間隔を置いて水平方向に延長された流通孔パターンを囲う成長防止膜と、
前記流通孔パターンの間の領域で前記基礎基板の上面と接触するよう前記基礎基板上に形成され、前記成長防止膜を覆う窒化物半導体結晶層と、
を含むことを特徴とする半導体積層構造物。 - 前記基礎基板は、窒化物半導体基板であることを特徴とする請求項1に記載の半導体積層構造物。
- 前記基礎基板は、下層部として異種基板を含み上層部として窒化物半導体層を含むことを特徴とする請求項1に記載の半導体積層構造物。
- 前記成長防止膜は、SiO2、SiNx及びAl2O3からなるグループから選択された物質からなることを特徴とする請求項1に記載の半導体積層構造物。
- 前記成長防止膜は、高融点金属からなることを特徴とする請求項1に記載の半導体積層構造物。
- 窒化物半導体結晶面である上面を有する基礎基板上に熱分解性物質パターンとその熱分解性物質パターンを囲う成長防止膜を形成する段階と、
前記熱分解性物質パターンの間の領域の成長防止膜を蝕刻して前記基礎基板の結晶面を露出させる段階と、
前記露出された結晶面から窒化物半導体結晶を成長させることにより、前記熱分解性物質を熱分解させ流通孔パターンを形成すると共に、前記成長防止膜を覆う窒化物半導体結晶層を形成する段階と、
前記流通孔パターンにエッチング剤を流通することにより、前記基礎基板から前記半導体結晶層を分離させる段階と、
を含むことを特徴とする窒化物半導体結晶基板の製造方法。 - 前記熱分解性物質パターンと成長防止膜を形成する段階は、
前記基礎基板上に第1成長防止膜を形成する段階と、
前記第1成長防止膜上に相互間隔を置いて配置された熱分解性物質のパターンを形成する段階と、
前記熱分解性物質パターンを囲うよう前記結果物上に第2成長防止膜を形成する段階と、
を含むことを特徴とする請求項6に記載の窒化物半導体結晶基板の製造方法。 - 前記熱分解性物質は、熱分解性酸化物であることを特徴とする請求項6に記載の窒化物半導体結晶基板の製造方法。
- 前記熱分解性酸化物は、ZnO、MgO、CaO、CdO、FeO及びTiO2からなるグループから選択された物質であることを特徴とする請求項8に記載の窒化物半導体結晶基板の製造方法。
- 前記熱分解性物質は、熱分解性樹脂であることを特徴とする請求項6に記載の窒化物半導体結晶基板の製造方法。
- 前記熱分解性樹脂は、分解温度が250乃至600℃のフォトレジスト系ポリマーであることを特徴とする請求項10に記載の窒化物半導体結晶基板の製造方法。
- 前記熱分解性樹脂は、分解温度が250乃至600℃の熱硬化性樹脂であることを特徴とする請求項10に記載の窒化物半導体結晶基板の製造方法。
- 前記成長防止膜は、SiO2、SiNx及びAl2O3からなるグループから選択された物質からなることを特徴とする請求項6に記載の窒化物半導体結晶基板の製造方法。
- 前記成長防止膜は、高融点金属からなることを特徴とする請求項6に記載の窒化物半導体結晶基板の製造方法。
- 窒化物半導体結晶面である上面を有する基礎基板上に熱分解性物質パターンとその熱分解性物質パターンを囲う成長防止膜を形成する段階と、
前記熱分解性物質パターンの間の領域の成長防止膜を蝕刻して前記基礎基板の結晶面を露出させる段階と、
前記露出された結晶面から窒化物半導体結晶を成長させることにより、前記熱分解性物質を熱分解させ流通孔パターンを形成すると共に、前記成長防止膜を覆う窒化物半導体結晶層を形成する段階と、
を含むことを特徴とする窒化物半導体素子の製造方法。 - 前記熱分解性物質パターンと成長防止膜を形成する段階は、
前記基礎基板上に第1成長防止膜を形成する段階と、
前記第1成長防止膜上に相互間隔を置いて配置された熱分解性物質のパターンを形成する段階と、
前記熱分解性物質パターンを囲うよう前記結果物上に第2成長防止膜を形成する段階と、を含むことを特徴とする請求項15に記載の窒化物半導体素子の製造方法。 - 前記窒化物半導体結晶層形成後、前記流通孔パターンにエッチング剤を流通することにより、前記基礎基板から前記窒化物半導体結晶層を分離させる段階と、
前記分離された窒化物半導体結晶層上に第1導電型クラッド層、活性層及び第2導電型クラッド層を順次に形成する段階と、
をさらに含むことを特徴とする請求項15に記載の窒化物半導体素子の製造方法。 - 前記窒化物半導体結晶層形成後、前記窒化物半導体結晶層上に第1導電型クラッド層、活性層及び第2導電型クラッド層を順次に形成する段階と、
前記第2導電型クラッド層形成後、前記流通孔パターンにエッチング剤を流通することにより前記基礎基板を分離させる段階と、
を含むことを特徴とする請求項15に記載の窒化物半導体素子の製造方法。 - 前記熱分解性物質は、熱分解性酸化物であることを特徴とする請求項15に記載の窒化物半導体素子の製造方法。
- 前記熱分解性酸化物は、ZnO、MgO、CaO、CdO、FeO及びTiO2からなるグループから選択された物質であることを特徴とする請求項19に記載の窒化物半導体素子の製造方法。
- 前記熱分解性物質は、熱分解性樹脂であることを特徴とする請求項15に記載の窒化物半導体素子の製造方法。
- 前記熱分解性樹脂は、分解温度が250乃至600℃のフォトレジスト系ポリマーであることを特徴とする請求項21に記載の窒化物半導体素子の製造方法。
- 前記熱分解性樹脂は、分解温度が250乃至600℃の熱硬化性樹脂であることを特徴とする請求項21に記載の窒化物半導体素子の製造方法。
- 前記成長防止膜は、SiO2、SiNx及びAl2O3からなるグループから選択された物質からなることを特徴とする請求項15に記載の窒化物半導体素子の製造方法。
- 前記成長防止膜は、高融点金属からなることを特徴とする請求項15に記載の窒化物半導体素子の製造方法。
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100887111B1 (ko) | 2007-05-07 | 2009-03-04 | 삼성전기주식회사 | 수직구조 반도체 발광소자 제조방법 |
JP2009099989A (ja) * | 2007-10-16 | 2009-05-07 | Shogen Koden Kofun Yugenkoshi | 二種類の材料系の分離方法 |
JP2009190918A (ja) * | 2008-02-13 | 2009-08-27 | New Japan Radio Co Ltd | 窒化物半導体基板の製造方法及び窒化物半導体装置の製造方法 |
JP2009267412A (ja) * | 2008-04-28 | 2009-11-12 | Advanced Optoelectronic Technology Inc | Iii族窒素化合物半導体発光素子の製造方法およびその構造 |
US8581283B2 (en) | 2008-04-28 | 2013-11-12 | Advanced Optoelectronic Technology, Inc. | Photoelectric device having group III nitride semiconductor |
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KR101101780B1 (ko) * | 2008-09-08 | 2012-01-05 | 서울대학교산학협력단 | 질화물 박막 구조 및 그 형성 방법 |
TWI405257B (zh) * | 2009-04-08 | 2013-08-11 | Advanced Optoelectronic Tech | 分離基板與半導體層的方法 |
CN102820384B (zh) * | 2011-06-08 | 2015-10-07 | 展晶科技(深圳)有限公司 | 发光二极管封装结构的制造方法 |
WO2015025631A1 (ja) * | 2013-08-21 | 2015-02-26 | シャープ株式会社 | 窒化物半導体発光素子 |
CN108321270A (zh) * | 2018-01-30 | 2018-07-24 | 安徽三安光电有限公司 | 一种发光二极管的制备方法 |
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US6071795A (en) * | 1998-01-23 | 2000-06-06 | The Regents Of The University Of California | Separation of thin films from transparent substrates by selective optical processing |
US6294440B1 (en) * | 1998-04-10 | 2001-09-25 | Sharp Kabushiki Kaisha | Semiconductor substrate, light-emitting device, and method for producing the same |
WO2002064864A1 (fr) * | 2001-02-14 | 2002-08-22 | Toyoda Gosei Co., Ltd. | Procede de production de cristal semi-conducteur et element lumineux semi-conducteur |
US6562701B2 (en) * | 2001-03-23 | 2003-05-13 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing nitride semiconductor substrate |
ATE535010T1 (de) * | 2001-07-12 | 2011-12-15 | Univ Mississippi State | Verfahren zur herstllung selbstausgerichteten transistortopologien in siliziumkarbid durch verwendung selektiver epitaxie |
AU2002354254A1 (en) * | 2001-12-20 | 2003-07-09 | Matsushita Electric Industrial Co., Ltd. | Method for making nitride semiconductor substrate and method for making nitride semiconductor device |
JP2003188413A (ja) | 2001-12-20 | 2003-07-04 | Sanyo Electric Co Ltd | 光半導体素子 |
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2005
- 2005-08-18 KR KR1020050075912A patent/KR100638880B1/ko not_active IP Right Cessation
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2006
- 2006-08-17 US US11/505,406 patent/US20070141741A1/en not_active Abandoned
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100887111B1 (ko) | 2007-05-07 | 2009-03-04 | 삼성전기주식회사 | 수직구조 반도체 발광소자 제조방법 |
JP2009099989A (ja) * | 2007-10-16 | 2009-05-07 | Shogen Koden Kofun Yugenkoshi | 二種類の材料系の分離方法 |
JP2009190918A (ja) * | 2008-02-13 | 2009-08-27 | New Japan Radio Co Ltd | 窒化物半導体基板の製造方法及び窒化物半導体装置の製造方法 |
JP2009267412A (ja) * | 2008-04-28 | 2009-11-12 | Advanced Optoelectronic Technology Inc | Iii族窒素化合物半導体発光素子の製造方法およびその構造 |
US8581283B2 (en) | 2008-04-28 | 2013-11-12 | Advanced Optoelectronic Technology, Inc. | Photoelectric device having group III nitride semiconductor |
Also Published As
Publication number | Publication date |
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JP4490953B2 (ja) | 2010-06-30 |
KR100638880B1 (ko) | 2006-10-27 |
US20070141741A1 (en) | 2007-06-21 |
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