KR20070091828A - 나노콘 성장방법 및 이를 이용한 발광 다이오드의제조방법 - Google Patents
나노콘 성장방법 및 이를 이용한 발광 다이오드의제조방법 Download PDFInfo
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- KR20070091828A KR20070091828A KR1020060021443A KR20060021443A KR20070091828A KR 20070091828 A KR20070091828 A KR 20070091828A KR 1020060021443 A KR1020060021443 A KR 1020060021443A KR 20060021443 A KR20060021443 A KR 20060021443A KR 20070091828 A KR20070091828 A KR 20070091828A
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- nitride semiconductor
- semiconductor layer
- growth
- type nitride
- nanocone
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- 239000002110 nanocone Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 50
- 150000004767 nitrides Chemical class 0.000 claims abstract description 105
- 239000000758 substrate Substances 0.000 claims abstract description 44
- 239000010409 thin film Substances 0.000 claims abstract description 31
- 239000002243 precursor Substances 0.000 claims abstract description 15
- 239000004065 semiconductor Substances 0.000 claims description 81
- 238000004519 manufacturing process Methods 0.000 claims description 19
- 238000005530 etching Methods 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 238000005229 chemical vapour deposition Methods 0.000 claims description 5
- RGGPNXQUMRMPRA-UHFFFAOYSA-N triethylgallium Chemical compound CC[Ga](CC)CC RGGPNXQUMRMPRA-UHFFFAOYSA-N 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 15
- 239000000463 material Substances 0.000 description 13
- 238000000605 extraction Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 11
- 229910052594 sapphire Inorganic materials 0.000 description 11
- 239000010980 sapphire Substances 0.000 description 11
- 239000010931 gold Substances 0.000 description 9
- 239000013078 crystal Substances 0.000 description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000001451 molecular beam epitaxy Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052733 gallium Inorganic materials 0.000 description 2
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 2
- IBEFSUTVZWZJEL-UHFFFAOYSA-N trimethylindium Chemical compound C[In](C)C IBEFSUTVZWZJEL-UHFFFAOYSA-N 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-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
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- QBJCZLXULXFYCK-UHFFFAOYSA-N magnesium;cyclopenta-1,3-diene Chemical compound [Mg+2].C1C=CC=[C-]1.C1C=CC=[C-]1 QBJCZLXULXFYCK-UHFFFAOYSA-N 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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Abstract
Description
Claims (9)
- 기판을 열처리하는 단계;제1 성장온도에서 Ⅲ족 및 Ⅴ족의 반응 전구체를 일정한 분량으로 주입하여, 상기 기판 상부에 질화물 박막을 성장시키는 단계; 및상기 제1 성장온도보다 낮은 제2 성장온도에서 상기 Ⅲ족 및 Ⅴ족의 반응 전구체의 주입되는 분량을 줄여, 상기 질화물 박막 상부에 복수개의 나노콘(Nanocone)을 성장시키는 단계를 포함하여 이루어지는 나노콘 성장방법.
- 제1항에 있어서,상기 기판을 열처리 한 후, 상기 기판 상부에 AlxInyGa(1-x-y)N(여기서, 0≤x≤1, 0≤y≤1, 0≤x+y≤1 임)으로 이루어지는 버퍼층을 형성하는 단계를 더 포함하는 것을 특징으로 하는 나노콘 성장방법.
- 제1항에 있어서,상기 제1 성장온도는 900 ~ 1100℃ 이며, 상기 제2 성장온도는 600 ~ 800℃인 것을 특징으로 하는 나노콘 성장방법.
- 제1항에 있어서,상기 나노콘의 성장 단계에 있어서,Ⅲ족 반응 전구체로는 TMGa(Tri-Methyl-Gallium) 또는 TEGa(Tri-Eethyl-Gallium)을 사용하고, Ⅴ족 반응 전구체로는 NH3 기체를 사용하며, 상기 Ⅲ족 및 Ⅴ족 반응 전구체의 주입양은 상기 질화물 박막을 성장시키는 경우의 1/3 ~ 1/2 정도로 주입하는 것을 특징으로 하는 나노콘 성장방법.
- 제1항에 있어서,상기 나노콘의 크기는 10㎚ ~ 1000㎚인 것을 특징으로 하는 나노콘 성장방법.
- 제1항에 있어서,상기 나노콘은 AlxInyGa(1-x-y)N 조성식(여기서, 0≤x≤1, 0≤y≤1, 0≤x+y≤1 임)으로 이루어지는 것을 특징으로 하는 나노콘 성장방법.
- 제1항에 있어서,상기 나노콘은 MOCVD(Metal Organic Chemical Vapor Deposition)법에 의해 성장시키는 것을 특징으로 하는 나노콘 성장방법.
- 기판 상부에 제1 성장온도에서 Ⅲ족 및 Ⅴ족의 반응 전구체를 일정한 분량으로 주입하여 n형 질화물 반도체층, 활성층, p형 질화물 반도체층을 순차적으로 형성하는 단계;상기 p형 질화물 반도체층부터 상기 n형 질화물 반도체층의 일부분까지 메사(Mesa) 식각하는 단계;상기 제1 성장온도보다 낮은 제2 성장온도에서 상기 Ⅲ족 및 Ⅴ족의 반응 전구체의 주입되는 분량을 줄여, 상기 p형 질화물 반도체층 상부에 복수개의 나노콘(Nanocone)을 형성하는 단계; 및상기 복수개의 나노콘의 일부를 제거하고 상기 나노콘이 제거된 영역의 상기 p형 질화물 반도체층 상부에 p-전극을 형성하고, 상기 메사 식각되어 노출된 n형 질화물 반도체층 상부에 n-전극을 형성하는 단계를 포함하여 이루어지는 나노콘 성장방법을 이용한 발광 다이오드의 제조방법.
- 제8항에 있어서,상기 제1 성장온도는 700 ~ 1100℃ 이며, 상기 제2 성장온도는 400 ~ 800℃인 것을 특징으로 하는 나노콘 성장방법을 이용한 발광 다이오드의 제조방법.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060021443A KR100844722B1 (ko) | 2006-03-07 | 2006-03-07 | 나노콘 성장방법 및 이를 이용한 발광 다이오드의제조방법 |
US11/707,167 US7714337B2 (en) | 2006-03-07 | 2007-02-16 | Light emitting device and method of manufacturing the same |
US12/731,029 US8598607B2 (en) | 2006-03-07 | 2010-03-24 | Light emitting device and method of manufacturing the same |
US13/489,158 US8643035B2 (en) | 2006-03-07 | 2012-06-05 | Light emitting device and method of manufacturing the same |
US14/147,947 US8912556B2 (en) | 2006-03-07 | 2014-01-06 | Light emitting device and method of manufacturing the same |
US14/552,088 US9343624B2 (en) | 2006-03-07 | 2014-11-24 | Light emitting device and method of manufacturing the same |
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US20100176416A1 (en) | 2010-07-15 |
US9343624B2 (en) | 2016-05-17 |
US20150102370A1 (en) | 2015-04-16 |
US20080272382A1 (en) | 2008-11-06 |
KR100844722B1 (ko) | 2008-07-07 |
US20140117378A1 (en) | 2014-05-01 |
US20120241757A1 (en) | 2012-09-27 |
US7714337B2 (en) | 2010-05-11 |
US8643035B2 (en) | 2014-02-04 |
US8912556B2 (en) | 2014-12-16 |
US8598607B2 (en) | 2013-12-03 |
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