JP2019207944A - 半導体発光素子および半導体発光素子の製造方法 - Google Patents
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 150
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 16
- 239000010410 layer Substances 0.000 claims abstract description 272
- 239000011241 protective layer Substances 0.000 claims abstract description 160
- 239000000463 material Substances 0.000 claims abstract description 52
- 239000000758 substrate Substances 0.000 claims abstract description 39
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 15
- 239000010703 silicon Substances 0.000 claims abstract description 15
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 9
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 28
- 229910002601 GaN Inorganic materials 0.000 claims description 18
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 16
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 238000001312 dry etching Methods 0.000 claims description 9
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 9
- RNQKDQAVIXDKAG-UHFFFAOYSA-N aluminum gallium Chemical compound [Al].[Ga] RNQKDQAVIXDKAG-UHFFFAOYSA-N 0.000 claims description 7
- 238000000231 atomic layer deposition Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000001039 wet etching Methods 0.000 claims description 4
- 229910002704 AlGaN Inorganic materials 0.000 abstract 1
- 238000005253 cladding Methods 0.000 description 77
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 12
- 238000000137 annealing Methods 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 9
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- -1 AlGaN Chemical compound 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- AUCDRFABNLOFRE-UHFFFAOYSA-N alumane;indium Chemical compound [AlH3].[In] AUCDRFABNLOFRE-UHFFFAOYSA-N 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
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- 230000008018 melting Effects 0.000 description 2
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
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- 229910017855 NH 4 F Inorganic materials 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
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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Abstract
Description
Claims (7)
- 基板上に設けられるn型窒化アルミニウムガリウム(AlGaN)系半導体材料のn型半導体層と、
前記n型半導体層上の第1領域に設けられるAlGaN系半導体材料の活性層と、
前記活性層上に設けられるp型AlGaN系半導体材料のp型半導体層と、
前記p型半導体層上に設けられ、酸化シリコン(SiO2)または酸窒化シリコン(SiON)で構成される第1保護層と、
前記第1保護層上と、前記n型半導体層上の前記第1領域とは異なる第2領域と、前記活性層の側面とを被覆するように設けられ、酸化アルミニウム(Al2O3)、酸窒化アルミニウム(AlON)または窒化アルミニウム(AlN)で構成される第2保護層と、
前記p型半導体層上の前記第1保護層および前記第2保護層を貫通するp側開口にて前記p型半導体層上に接して設けられるp側電極と、
前記n型半導体層上の前記第2領域の前記第2保護層を貫通するn側開口にて前記n型半導体層上に接して設けられるn側電極と、を備えることを特徴とする半導体発光素子。 - 前記第2保護層は、前記n型半導体層および前記p型半導体層の側面をさらに被覆するように設けられることを特徴とする請求項1に記載の半導体発光素子。
- 前記第2保護層の厚みは、50nm以下であることを特徴とする請求項1または2に記載の半導体発光素子。
- 前記n側電極および前記p側電極のそれぞれの一部は、前記第2保護層上に設けられることを特徴とする請求項1から3のいずれか一項に記載の半導体発光素子。
- 基板上に、n型窒化アルミニウムガリウム(AlGaN)系半導体材料のn型半導体層、n型半導体層上のAlGaN系半導体材料の活性層、活性層上のp型AlGaN系半導体材料のp型半導体層、p型半導体層上の酸化シリコン(SiO2)または酸窒化シリコン(SiON)で構成される第1保護層を順に積層する工程と、
前記n型半導体層の一部が露出するように前記第1保護層、前記p型半導体層、前記活性層および前記n型半導体層の一部を除去する工程と、
前記第1保護層上と、前記n型半導体層の露出領域上と、前記活性層の側面とを被覆するように、酸化アルミニウム(Al2O3)、酸窒化アルミニウム(AlON)または窒化アルミニウム(AlN)で構成される第2保護層を形成する工程と、
前記第1保護層上の前記第2保護層を部分的に除去して前記第1保護層が露出するp側開口を形成し、前記n型半導体層上の前記第2保護層を部分的に除去して前記n型半導体層が露出するn側開口を形成する工程と、
前記n側開口にて前記n型半導体層上に接するn側電極を形成する工程と、
前記p側開口にて前記第1保護層を除去して前記p型半導体層を露出させる工程と、 前記p側開口にて前記p型半導体層上に接するp側電極を形成する工程と、を備えることを特徴とする半導体発光素子の製造方法。 - 前記p側開口および前記n側開口を形成する工程は、ドライエッチングにより前記第2保護層を除去し、
前記p型半導体層を露出させる工程は、ウェットエッチングにより前記第1保護層を除去する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。 - 前記第2保護層は、原子層堆積法により形成されることを特徴とする請求項5または6に記載の半導体発光素子の製造方法。
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PCT/JP2019/019775 WO2019230459A1 (ja) | 2018-05-29 | 2019-05-17 | 半導体発光素子および半導体発光素子の製造方法 |
KR1020227034228A KR20220137809A (ko) | 2018-05-29 | 2019-05-17 | 반도체 발광 소자 및 반도체 발광 소자의 제조 방법 |
KR1020197032335A KR102480037B1 (ko) | 2018-05-29 | 2019-05-17 | 반도체 발광 소자 및 반도체 발광 소자의 제조 방법 |
KR1020247001594A KR20240011257A (ko) | 2018-05-29 | 2019-05-17 | 반도체 발광 소자 |
TW108117940A TWI720493B (zh) | 2018-05-29 | 2019-05-24 | 半導體發光元件以及半導體發光元件的製造方法 |
US16/668,335 US11217728B2 (en) | 2018-05-29 | 2019-10-30 | Semiconductor light emitting element and method of manufacturing semiconductor light emitting element |
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JP7307662B2 (ja) | 2019-10-31 | 2023-07-12 | 日機装株式会社 | 半導体発光素子および半導体発光素子の製造方法 |
CN112993138B (zh) * | 2020-10-22 | 2022-02-25 | 重庆康佳光电技术研究院有限公司 | 芯片基板及其制作方法 |
CN113594326B (zh) * | 2021-07-29 | 2022-12-20 | 厦门三安光电有限公司 | 一种发光二极管、发光模块及显示装置 |
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JP2023163403A (ja) * | 2022-04-28 | 2023-11-10 | 日機装株式会社 | 半導体発光素子および半導体発光素子の製造方法 |
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