JP6331572B2 - 窒化物半導体素子の製造方法 - Google Patents
窒化物半導体素子の製造方法 Download PDFInfo
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- JP6331572B2 JP6331572B2 JP2014068383A JP2014068383A JP6331572B2 JP 6331572 B2 JP6331572 B2 JP 6331572B2 JP 2014068383 A JP2014068383 A JP 2014068383A JP 2014068383 A JP2014068383 A JP 2014068383A JP 6331572 B2 JP6331572 B2 JP 6331572B2
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- nitride semiconductor
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- 239000004065 semiconductor Substances 0.000 title claims description 154
- 150000004767 nitrides Chemical class 0.000 title claims description 129
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 36
- 239000001301 oxygen Substances 0.000 claims description 36
- 229910052760 oxygen Inorganic materials 0.000 claims description 36
- 239000000758 substrate Substances 0.000 claims description 26
- 229910052594 sapphire Inorganic materials 0.000 claims description 25
- 239000010980 sapphire Substances 0.000 claims description 25
- 239000013078 crystal Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 238000000927 vapour-phase epitaxy Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 151
- 229910002601 GaN Inorganic materials 0.000 description 18
- 238000002441 X-ray diffraction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- -1 gallium nitride compound Chemical class 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/005—Processes
- H01L33/0062—Processes for devices with an active region comprising only III-V compounds
- H01L33/0066—Processes for devices with an active region comprising only III-V compounds with a substrate not being a III-V compound
- H01L33/007—Processes for devices with an active region comprising only III-V compounds with a substrate not being a III-V compound comprising nitride compounds
-
- 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
-
- 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
- H01L21/02428—Structure
- H01L21/0243—Surface structure
-
- 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
- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02439—Materials
- H01L21/02455—Group 13/15 materials
- H01L21/02458—Nitrides
-
- 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
- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02494—Structure
- H01L21/02496—Layer structure
- H01L21/02505—Layer structure consisting of more than two layers
-
- 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
- H01L21/0254—Nitrides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/16—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a particular crystal structure or orientation, e.g. polycrystalline, amorphous or porous
- H01L33/18—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a particular crystal structure or orientation, e.g. polycrystalline, amorphous or porous within the light emitting region
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/12—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a stress relaxation structure, e.g. buffer layer
Description
11 サファイア基板
110 上面
111 平坦面
112 凸部
13 n型半導体層
14 発光層
15 p型半導体層
16 n側電極
17 p側電極
21 第1窒化物半導体層
22 第2窒化物半導体層
23 第3窒化物半導体層
Claims (5)
- 有機金属気相成長法によって、サファイア基板上に単結晶のAlXGa1−XN(0.5<X≦1)からなる第1窒化物半導体層を積層する第1窒化物半導体層積層工程と、
前記第1窒化物半導体層に第2窒化物半導体層を積層する第2窒化物半導体層積層工程と、
を備え、
前記第1窒化物半導体層積層工程は、
酸素を供給しながら、前記サファイア基板の上面全体を前記第1窒化物半導体層で被膜させる第1工程と、
前記第1工程で供給される酸素の流量よりも少ない流量の酸素を供給しながら、または、酸素を供給しないで、前記第1窒化物半導体層を結晶成長させる第2工程と、
を有し、
前記サファイア基板の前記第1窒化物半導体層側の上面は、c面の平坦面と、前記平坦面に設けられた凸部と、を有し、
前記凸部の形状は、略円錐形、または、側面にn面を有する略六角錘形であることを特徴とする窒化物半導体素子の製造方法。 - 請求項1に記載の窒化物半導体素子の製造方法において、
前記第1窒化物半導体層積層工程では、800℃以上で、前記第1窒化物半導体層を成長させることを特徴とする窒化物半導体素子の製造方法。 - 請求項1または2に記載の窒化物半導体素子の製造方法において、
前記第1窒化物半導体層積層工程と、前記第2窒化物半導体層積層工程とは、有機金属気相成長法によって連続して行われることを特徴とする窒化物半導体素子の製造方法。 - 請求項1から3の何れか一つに記載の窒化物半導体素子の製造方法において、
前記第1窒化物半導体層は、AlNであることを特徴とする窒化物半導体素子の製造方法。 - 請求項1から4の何れか一つに記載の窒化物半導体素子の製造方法において、
前記第2窒化物半導体層は、GaNであることを特徴とする窒化物半導体素子の製造方法。
Priority Applications (2)
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JP2014068383A JP6331572B2 (ja) | 2014-03-28 | 2014-03-28 | 窒化物半導体素子の製造方法 |
US14/670,106 US9252323B2 (en) | 2014-03-28 | 2015-03-26 | Method for manufacturing nitride semiconductor element |
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JP2014068383A JP6331572B2 (ja) | 2014-03-28 | 2014-03-28 | 窒化物半導体素子の製造方法 |
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JP2015192036A JP2015192036A (ja) | 2015-11-02 |
JP6331572B2 true JP6331572B2 (ja) | 2018-05-30 |
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JP (1) | JP6331572B2 (ja) |
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JP7123322B2 (ja) * | 2017-08-31 | 2022-08-23 | 東芝マテリアル株式会社 | 半導体発光素子およびその製造方法 |
Family Cites Families (6)
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DE19882202B4 (de) | 1998-01-21 | 2007-03-22 | Rohm Co. Ltd., Kyoto | Lichtemittierende Halbleitervorrichtung und Verfahren zu ihrer Herstellung |
US6703255B2 (en) | 2001-03-28 | 2004-03-09 | Ngk Insulators, Ltd. | Method for fabricating a III nitride film |
JP2003218045A (ja) | 2001-03-28 | 2003-07-31 | Ngk Insulators Ltd | Iii族窒化物膜の製造方法 |
US9297093B2 (en) * | 2009-09-28 | 2016-03-29 | Tokuyama Corporation | Layered body having a single crystal layer |
JP5521981B2 (ja) * | 2010-11-08 | 2014-06-18 | 豊田合成株式会社 | 半導体発光素子の製造方法 |
JP5480827B2 (ja) * | 2011-01-07 | 2014-04-23 | シャープ株式会社 | 窒化物半導体発光素子およびその製造方法 |
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JP2015192036A (ja) | 2015-11-02 |
US9252323B2 (en) | 2016-02-02 |
US20150280055A1 (en) | 2015-10-01 |
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