JP6510888B2 - 半導体発光素子の製造方法 - Google Patents
半導体発光素子の製造方法 Download PDFInfo
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- JP6510888B2 JP6510888B2 JP2015104881A JP2015104881A JP6510888B2 JP 6510888 B2 JP6510888 B2 JP 6510888B2 JP 2015104881 A JP2015104881 A JP 2015104881A JP 2015104881 A JP2015104881 A JP 2015104881A JP 6510888 B2 JP6510888 B2 JP 6510888B2
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- 239000004065 semiconductor Substances 0.000 title claims description 276
- 238000004519 manufacturing process Methods 0.000 title claims description 40
- 239000000758 substrate Substances 0.000 claims description 61
- 238000000034 method Methods 0.000 claims description 58
- 230000008569 process Effects 0.000 claims description 40
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 34
- 239000012535 impurity Substances 0.000 claims description 33
- 239000002243 precursor Substances 0.000 claims description 28
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 22
- 239000001257 hydrogen Substances 0.000 claims description 18
- 229910052739 hydrogen Inorganic materials 0.000 claims description 18
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 18
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 11
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- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 239000010410 layer Substances 0.000 description 264
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- 229910002601 GaN Inorganic materials 0.000 description 15
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- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 description 4
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- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- GEIAQOFPUVMAGM-UHFFFAOYSA-N Oxozirconium Chemical compound [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 description 2
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- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
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- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 2
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- 229910000449 hafnium oxide Inorganic materials 0.000 description 2
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- 239000011810 insulating material Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
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- 229910052707 ruthenium Inorganic materials 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- RGGPNXQUMRMPRA-UHFFFAOYSA-N triethylgallium Chemical compound CC[Ga](CC)CC RGGPNXQUMRMPRA-UHFFFAOYSA-N 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910005540 GaP Inorganic materials 0.000 description 1
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910002796 Si–Al Inorganic materials 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- 101001045744 Sus scrofa Hepatocyte nuclear factor 1-beta Proteins 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- UGACIEPFGXRWCH-UHFFFAOYSA-N [Si].[Ti] Chemical compound [Si].[Ti] UGACIEPFGXRWCH-UHFFFAOYSA-N 0.000 description 1
- AUCDRFABNLOFRE-UHFFFAOYSA-N alumane;indium Chemical compound [AlH3].[In] AUCDRFABNLOFRE-UHFFFAOYSA-N 0.000 description 1
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- JYMITAMFTJDTAE-UHFFFAOYSA-N aluminum zinc oxygen(2-) Chemical compound [O-2].[Al+3].[Zn+2] JYMITAMFTJDTAE-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- NWAIGJYBQQYSPW-UHFFFAOYSA-N azanylidyneindigane Chemical compound [In]#N NWAIGJYBQQYSPW-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- BEQNOZDXPONEMR-UHFFFAOYSA-N cadmium;oxotin Chemical compound [Cd].[Sn]=O BEQNOZDXPONEMR-UHFFFAOYSA-N 0.000 description 1
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- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
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- 238000005520 cutting process Methods 0.000 description 1
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- 238000005137 deposition process Methods 0.000 description 1
- UAMZXLIURMNTHD-UHFFFAOYSA-N dialuminum;magnesium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Mg+2].[Al+3].[Al+3] UAMZXLIURMNTHD-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 239000000945 filler Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- -1 for example Chemical compound 0.000 description 1
- 229910001195 gallium oxide Inorganic materials 0.000 description 1
- HZXMRANICFIONG-UHFFFAOYSA-N gallium phosphide Chemical compound [Ga]#P HZXMRANICFIONG-UHFFFAOYSA-N 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- YQNQTEBHHUSESQ-UHFFFAOYSA-N lithium aluminate Chemical compound [Li+].[O-][Al]=O YQNQTEBHHUSESQ-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 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
- 239000011787 zinc oxide Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers 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
- H01L33/0075—Processes for devices with an active region comprising only III-V compounds comprising nitride compounds
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers 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
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- H—ELECTRICITY
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- H01L33/00—Semiconductor devices having potential barriers 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 having potential barriers 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
- H01L33/20—Semiconductor devices having potential barriers 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 shape, e.g. curved or truncated substrate
- H01L33/22—Roughened surfaces, e.g. at the interface between epitaxial layers
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- H01L33/02—Semiconductor devices having potential barriers 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
- H01L33/20—Semiconductor devices having potential barriers 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 shape, e.g. curved or truncated substrate
- H01L33/24—Semiconductor devices having potential barriers 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 shape, e.g. curved or truncated substrate of the light emitting region, e.g. non-planar junction
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- H01L33/02—Semiconductor devices having potential barriers 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
- H01L33/26—Materials of the light emitting region
- H01L33/30—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table
- H01L33/32—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table containing nitrogen
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- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
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- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
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- H01L2224/48227—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
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- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
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- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
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- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48257—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a die pad of the item
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- H01—ELECTRIC ELEMENTS
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- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers 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 having potential barriers 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
- H01L33/08—Semiconductor devices having potential barriers 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 plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
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Description
以下では、ナノ発光構造物140の上端部Tの頂点TCが、本体部Bの中心縦軸CVに垂直な平面上で上記本体部Bの中心縦軸CVの近くに位置する程度を「センタリング(centering)」という用語で表現する。即ち、センタリングは、上端部Tの頂点TCが本体部Bを基準に一方向に偏らずに本体部Bの上面の中心の近くに位置する程度を示す。したがって、センタリングが向上するほど、上端部Tの中心縦軸CVが本体部Bの中心縦軸CVに近づく。また、本体部Bの幅は、基板101の上面に平行な平面上で、本体部Bの中心を通る対角線の長さを意味し、本体部Bが正六角形でない場合は中心を通る最大長を意味する。ナノ発光構造物140のセンタリングについては、以下に図18〜20を参照してより詳細に説明する。
101 基板
120、120a ベース層
130 マスク層
135 モールド層
140、140a、140b ナノ発光構造物
142、142’ 第1の導電型半導体コア
142A、142A’ 第1の領域
142B、142B’ 第2の領域
142C 第3の領域
142D 第4の領域
143 高抵抗層
144 活性層
146 第2の導電型半導体層
150 透明電極層
160、160a 充填層
170、170a 第1の電極
180 第2の電極
180a コンタクト電極層
180b 接合電極層
Claims (18)
- 基板上に第1の導電型半導体からなるベース層を形成する段階と、
前記ベース層上に、前記ベース層の一部が露出した複数の開口部を有するマスク層及びモールド層を形成する段階と、
前記ベース層から前記開口部に延長される本体部及び前記本体部上に配置される錐状の上端部を含む複数の第1の導電型半導体コアを形成する段階と、
それぞれの前記複数の第1の導電型半導体コア上に活性層及び第2の導電型半導体層を順次形成する段階と、
を含み、
前記複数の第1の導電型半導体コアを形成する段階は、
前記上端部の頂点が前記本体部の中心縦軸上に位置するように第1の領域を形成する段階と、
前記モールド層を除去する段階と、
前記本体部が六角柱状の形状を有するように前記第1の領域上に追加成長領域を形成する段階とを含むことを特徴とする半導体発光素子の製造方法。 - 前記本体部において前記第1の領域は傾斜した側面を有することを特徴とする請求項1に記載の半導体発光素子の製造方法。
- 前記追加成長領域を形成する段階において、前記本体部の成長は前記本体部の下部で主になされ、前記本体部が前記基板に実質的に垂直な側面を有することを特徴とする請求項2に記載の半導体発光素子の製造方法。
- 前記第1の領域は、前記開口部を満たして前記モールド層の上部に延長され、前記モールド層上で前記開口部より大きい幅を有することを特徴とする請求項1に記載の半導体発光素子の製造方法。
- 前記追加成長領域を形成する段階は、水素(H2)雰囲気で前記複数の第1の導電型半導体コアを成長させる段階を含むことを特徴とする請求項1に記載の半導体発光素子の製造方法。
- 前記水素(H2)雰囲気で前記複数の第1の導電型半導体コアを成長させる段階の前に、
窒素(N2)雰囲気で前記複数の第1の導電型半導体コアを成長させる段階をさらに含むことを特徴とする請求項5に記載の半導体発光素子の製造方法。 - 前記水素(H2)雰囲気で前記複数の第1の導電型半導体コアを成長させる段階の前後に、
窒素(N2)雰囲気で前記複数の第1の導電型半導体コアを成長させる段階をさらに含むことを特徴とする請求項5に記載の半導体発光素子の製造方法。 - 前記追加成長領域は、前記第1の領域上に位置し前記窒素(N2)雰囲気で成長した第2の領域、前記第2の領域上に位置し水素(H2)雰囲気で成長した第3の領域、及び前記第3の領域上に位置し前記窒素(N2)雰囲気で成長した第4の領域を含み、
前記本体部において前記第3の領域は下部における厚さが上部における厚さより厚いことを特徴とする請求項7に記載の半導体発光素子の製造方法。 - 前記第3の領域の不純物の濃度は、前記第2及び第4の領域の不純物の濃度より高いことを特徴とする請求項8に記載の半導体発光素子の製造方法。
- 前記第3の領域の形成時に供給される不純物ソースの量は、前記第2及び第4の領域の形成時に供給される不純物ソースの量の5倍〜7倍であることを特徴とする請求項8に記載の半導体発光素子の製造方法。
- ベース層上に、前記ベース層から突出する本体部及び前記本体部上に配置される錐状の上端部を含む複数の第1の導電型半導体コアを形成する段階と、
それぞれの前記複数の第1の導電型半導体コア上に活性層及び第2の導電型半導体層を順次形成する段階と、
を含み、
前記複数の第1の導電型半導体コアを形成する段階は、
第1のガス雰囲気及び第1の温度で前記複数の第1の導電型半導体コアの第1の領域を形成する段階と、
第2のガス雰囲気及び第2の温度で前記複数の第1の導電型半導体コアの前記第1の領域上に前記複数の第1の導電型半導体コアの第2の領域を形成する段階と、
第3のガス雰囲気及び第3の温度で前記複数の第1の導電型半導体コアの前記第2の領域上に前記複数の第1の導電型半導体コアの第3の領域を形成する段階とを含み、
前記第3のガス雰囲気における圧力は前記第2のガス雰囲気における圧力より小さいことを特徴とする半導体発光素子の製造方法。 - 前記複数の第1の導電型半導体コアは窒化ガリウム(GaN)系物質からなり、
前記第1の領域を形成する段階において、供給されるガリウム(Ga)前駆体と窒素(N)前駆体の比は1.4〜2.0の範囲であり、工程温度は900℃〜1000℃の範囲であることを特徴とする請求項1または11に記載の半導体発光素子の製造方法。 - 前記第2の温度は、前記第3の温度より低いことを特徴とする請求項11に記載の半導体発光素子の製造方法。
- 前記第2の温度は950℃〜1050℃の範囲であり、前記第3の温度は1050℃〜1150℃の範囲であることを特徴とする請求項11に記載の半導体発光素子の製造方法。
- 前記第2のガス雰囲気は窒素(N2)雰囲気であり、前記第3のガス雰囲気は水素(H2)雰囲気であることを特徴とする請求項11に記載の半導体発光素子の製造方法。
- 前記複数の第1の導電型半導体コアを形成する段階は、
第4のガス雰囲気及び第4の温度で前記複数の第1の導電型半導体コアの前記第3の領域上に前記複数の第1の導電型半導体コアの第3の領域を形成する段階をさらに含み、
前記第4のガス雰囲気は前記第2のガス雰囲気と同じであり、前記第4の温度は前記第2の温度と同じであることを特徴とする請求項15に記載の半導体発光素子の製造方法。 - 前記上端部の頂点が前記本体部の中心縦軸から前記本体部の幅の1.5%の距離以内に配置される比率が60%以上であることを特徴とする請求項1または16に記載の半導体発光素子の製造方法。
- 前記第3の領域の形成時に供給される不純物ソースの量は、前記第2の領域の形成時に供給される不純物ソースの量の5倍〜7倍であることを特徴とする請求項11に記載の半導体発光素子の製造方法。
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