JP2021034473A - 半導体発光素子および半導体発光素子の製造方法 - Google Patents
半導体発光素子および半導体発光素子の製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 188
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 239000010410 layer Substances 0.000 claims abstract description 290
- 239000011241 protective layer Substances 0.000 claims abstract description 129
- 239000011247 coating layer Substances 0.000 claims abstract description 84
- 239000000463 material Substances 0.000 claims abstract description 48
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 229910002704 AlGaN Inorganic materials 0.000 claims abstract 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract 5
- 239000000758 substrate Substances 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 25
- 229910052594 sapphire Inorganic materials 0.000 claims description 7
- 239000010980 sapphire Substances 0.000 claims description 7
- 238000004544 sputter deposition Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 42
- 238000001312 dry etching Methods 0.000 description 17
- 239000010936 titanium Substances 0.000 description 17
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 16
- 229910002601 GaN Inorganic materials 0.000 description 13
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 13
- 239000010948 rhodium Substances 0.000 description 11
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 10
- 238000005530 etching Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 9
- 239000010931 gold Substances 0.000 description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 9
- 229910052581 Si3N4 Inorganic materials 0.000 description 8
- 229910004298 SiO 2 Inorganic materials 0.000 description 8
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 8
- 238000000137 annealing Methods 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000000206 photolithography Methods 0.000 description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010894 electron beam technology Methods 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000000231 atomic layer deposition Methods 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 229910052703 rhodium Inorganic materials 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 2
- -1 SiON Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- CRWSWMKELFKJMC-UHFFFAOYSA-N CC.F.F.F.F.F.F Chemical compound CC.F.F.F.F.F.F CRWSWMKELFKJMC-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- RNQKDQAVIXDKAG-UHFFFAOYSA-N aluminum gallium Chemical compound [Al].[Ga] RNQKDQAVIXDKAG-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- NWAIGJYBQQYSPW-UHFFFAOYSA-N azanylidyneindigane Chemical compound [In]#N NWAIGJYBQQYSPW-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- JVPLOXQKFGYFMN-UHFFFAOYSA-N gold tin Chemical compound [Sn].[Au] JVPLOXQKFGYFMN-UHFFFAOYSA-N 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 238000005546 reactive sputtering Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000927 vapour-phase epitaxy Methods 0.000 description 1
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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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Abstract
Description
Claims (8)
- n型AlGaN系半導体材料のn型半導体層と、
前記n型半導体層上に設けられる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型半導体層と、
前記p型半導体層上に接触するRhで構成されるp側コンタクト電極と、
前記p側コンタクト電極を被覆するTiNで構成されるp側電極被覆層と、
前記n型半導体層、前記活性層、前記p型半導体層および前記p側電極被覆層を被覆する誘電体保護層と、
前記p側コンタクト電極上の前記誘電体保護層を貫通するp側開口において前記p側電極被覆層と接触するp側パッド電極と、を備えることを特徴とする半導体発光素子。 - 前記p側電極被覆層は、前記p側コンタクト電極の上面および側面を被覆し、前記p型半導体層と接触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。
- 前記n型半導体層上において前記活性層の形成領域とは異なる領域に設けられるn側コンタクト電極と、
前記n側コンタクト電極を被覆するTiNで構成されるn側電極被覆層と、
前記n側コンタクト電極上の前記誘電体保護層を貫通するn側開口において前記n側電極被覆層と接触するn側パッド電極と、をさらに備え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p側コンタクト電極の上面と前記n側コンタクト電極の上面の厚み方向の位置の差が100nm以下であることを特徴とする請求項3に記載の半導体発光素子。
- 主面に凹凸パターンが形成されたパターン化サファイア基板をさらに備え、
前記n型半導体層は、前記パターン化サファイア基板の前記主面上に設けられることを特徴とする請求項1から4のいずれか一項に記載の半導体発光素子。 - n型AlGaN系半導体材料のn型半導体層上にAlGaN系半導体材料の活性層を形成する工程と、
前記活性層上にp型半導体層を形成する工程と、
前記n型半導体層上の一部領域が露出するように前記p型半導体層および前記活性層の一部を除去する工程と、
前記p型半導体層上にRhで構成されるp側コンタクト電極を形成する工程と、
前記p側コンタクト電極を被覆するTiNで構成されるp側電極被覆層を形成する工程と、
前記n型半導体層、前記活性層、前記p型半導体層および前記p側電極被覆層を被覆する誘電体保護層を形成する工程と、
前記p側コンタクト電極上の前記誘電体保護層を貫通するp側開口を形成する工程と、
前記p側開口にて前記p側電極被覆層に接触するp側パッド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側電極被覆層は、スパッタリング法により形成されることを特徴とする請求項6に記載の半導体発光素子の製造方法。
- 前記n型半導体層上の前記一部領域にn側コンタクト電極を形成する工程と、
前記n側コンタクト電極を被覆するTiNで構成されるn側電極被覆層を形成する工程と、
前記n側コンタクト電極上の前記誘電体保護層を貫通するn側開口を形成する工程と、
前記n側開口にて前記n側電極被覆層に接触するn側パッド電極を形成する工程と、をさらに備え、
前記p側電極被覆層および前記n側電極被覆層は、同時に形成されることを特徴とする請求項6または7に記載の半導体発光素子の製造方法。
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JP2019151151A JP6811293B1 (ja) | 2019-08-21 | 2019-08-21 | 半導体発光素子および半導体発光素子の製造方法 |
US16/996,368 US11387385B2 (en) | 2019-08-21 | 2020-08-18 | Semiconductor light-emitting element and method of manufacturing semiconductor light-emitting element |
TW109128153A TWI753536B (zh) | 2019-08-21 | 2020-08-19 | 半導體發光元件以及半導體發光元件的製造方法 |
US17/835,317 US11777060B2 (en) | 2019-08-21 | 2022-06-08 | Semiconductor light-emitting element and method of manufacturing semiconductor light-emitting element |
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Cited By (5)
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JP7269414B1 (ja) | 2022-04-28 | 2023-05-08 | 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 |
JP7344937B2 (ja) | 2021-07-30 | 2023-09-14 | 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 |
JP7344936B2 (ja) | 2021-07-30 | 2023-09-14 | 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 |
JP7345524B2 (ja) | 2021-07-30 | 2023-09-15 | 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 |
JP7448832B2 (ja) | 2022-01-31 | 2024-03-13 | 日亜化学工業株式会社 | 発光素子 |
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JP7050250B2 (ja) * | 2020-02-07 | 2022-04-08 | 日亜化学工業株式会社 | 発光装置 |
JP6839320B1 (ja) | 2020-05-13 | 2021-03-03 | 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 |
JP6892538B1 (ja) * | 2020-05-13 | 2021-06-23 | 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 |
US20220246799A1 (en) * | 2021-01-29 | 2022-08-04 | PlayNitride Display Co., Ltd. | Micro light-emitting diode and display panel |
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