JP2005303287A - Iii族窒化物半導体発光素子、その製造方法及びledランプ - Google Patents
Iii族窒化物半導体発光素子、その製造方法及びledランプ Download PDFInfo
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- JP2005303287A JP2005303287A JP2005078451A JP2005078451A JP2005303287A JP 2005303287 A JP2005303287 A JP 2005303287A JP 2005078451 A JP2005078451 A JP 2005078451A JP 2005078451 A JP2005078451 A JP 2005078451A JP 2005303287 A JP2005303287 A JP 2005303287A
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 87
- 150000004767 nitrides Chemical class 0.000 title claims abstract description 82
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000758 substrate Substances 0.000 claims abstract description 92
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000013078 crystal Substances 0.000 claims description 112
- 229910052751 metal Inorganic materials 0.000 claims description 40
- 239000002184 metal Substances 0.000 claims description 40
- 229910052594 sapphire Inorganic materials 0.000 claims description 29
- 239000010980 sapphire Substances 0.000 claims description 29
- 230000005496 eutectics Effects 0.000 claims description 7
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 238000010030 laminating Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 175
- 239000010408 film Substances 0.000 description 35
- 239000010931 gold Substances 0.000 description 19
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 16
- 229910002601 GaN Inorganic materials 0.000 description 15
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 15
- 238000005253 cladding Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 10
- 229910052737 gold Inorganic materials 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 9
- 238000005498 polishing Methods 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000011651 chromium Substances 0.000 description 8
- 239000012535 impurity Substances 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 229910052738 indium Inorganic materials 0.000 description 7
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- 239000011777 magnesium Substances 0.000 description 6
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- 238000005530 etching Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 229910052697 platinum Inorganic materials 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- 230000008646 thermal stress Effects 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 238000007740 vapor deposition Methods 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 3
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 238000010894 electron beam technology Methods 0.000 description 3
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- 229910021478 group 5 element Inorganic materials 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
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- -1 nitride gallium phosphide Chemical class 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052703 rhodium Inorganic materials 0.000 description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- 229910005540 GaP Inorganic materials 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000008119 colloidal silica Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- HZXMRANICFIONG-UHFFFAOYSA-N gallium phosphide Chemical compound [Ga]#P HZXMRANICFIONG-UHFFFAOYSA-N 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
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- 229910052763 palladium Inorganic materials 0.000 description 2
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- 229910000679 solder Inorganic materials 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
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- 238000007738 vacuum evaporation Methods 0.000 description 2
- 238000001947 vapour-phase growth Methods 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- BYDQGSVXQDOSJJ-UHFFFAOYSA-N [Ge].[Au] Chemical compound [Ge].[Au] BYDQGSVXQDOSJJ-UHFFFAOYSA-N 0.000 description 1
- VZPPHXVFMVZRTE-UHFFFAOYSA-N [Kr]F Chemical compound [Kr]F VZPPHXVFMVZRTE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- ISQINHMJILFLAQ-UHFFFAOYSA-N argon hydrofluoride Chemical compound F.[Ar] ISQINHMJILFLAQ-UHFFFAOYSA-N 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
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 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
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 description 1
- 239000006023 eutectic alloy Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 229910001195 gallium oxide Inorganic materials 0.000 description 1
- 239000007789 gas Substances 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
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910021480 group 4 element Inorganic materials 0.000 description 1
- 229910021476 group 6 element Inorganic materials 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 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
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- 239000002904 solvent Substances 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
- 230000003685 thermal hair damage Effects 0.000 description 1
- 238000002834 transmittance Methods 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
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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
- H01L33/02—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
-
- 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
- H01L33/0093—Wafer bonding; Removal of the growth substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—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
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Led Devices (AREA)
- Led Device Packages (AREA)
Abstract
【解決手段】 この発明のIII族窒化物半導体発光素子は、少なくとも、互いに電気伝導型が異なる2つのIII族窒化物半導体層104,106と、その中間に設けられたIII族窒化物半導体からなる発光層105とを積層した積層構造体11からなるIII族窒化物半導体発光素子であって、積層構造体11を設けるために使用された結晶基板100とは反対側の最表層表面に、その結晶基板とは異なる材料からなる板状体111が設けられ、結晶基板100は除去されている、ことを特徴としている。
【選択図】 図3
Description
11 積層構造体
12 LED
100 サファイア基板
101 AlN層
102 GaN緩衝層
103 GaNコンタクト層
104 n型クラッド層
105 量子井戸構造発光層
106 p型クラッド層
107 p型コンタクト層
108 p型オーミック電極
109 金属反射膜
110 共晶膜
111 板状体
112 p型オーミック電極
113 n型オーミック電極
22 エポキシ樹脂
Claims (11)
- 少なくとも、互いに電気伝導型が異なる2つのIII族窒化物半導体層と、その中間に設けられたIII族窒化物半導体からなる発光層とを積層した積層構造体からなるIII族窒化物半導体発光素子において、
上記積層構造体を設けるために使用された結晶基板とは反対側の最表層表面に、その結晶基板とは異なる材料からなる板状体が設けられ、結晶基板は除去されている、
ことを特徴とするIII族窒化物半導体発光素子。 - 上記板状体は導電性材料からなる、請求項1に記載のIII族窒化物半導体発光素子。
- 上記積層構造体からの結晶基板の除去は、積層構造体と結晶基板との接合界面領域にレーザ光を照射して行われる、請求項1または2に記載のIII族窒化物半導体発光素子。
- 上記板状体にオーミック電極を設けた、請求項1から3の何れかに記載のIII族窒化物半導体発光素子。
- 上記板状体は、上記積層構造体を設けるために使用された結晶基板とは反対側の最表層表面に金属層を介して設けられる、請求項1から4の何れかに記載のIII族窒化物半導体発光素子。
- 上記金属層を共晶金属膜から構成した、請求項5に記載のIII族窒化物半導体発光素子。
- 上記板状体と上記積層構造体を設けるために使用された結晶基板とは反対側の最表層表面との間に、上記発光層からの発光を反射するための金属反射膜が備えられている、請求項1から6の何れかに記載のIII族窒化物半導体発光素子。
- 上記積層構造体を設けるために使用された結晶基板がサファイア基板で、その(0001)面上に積層構造体を設けるとともに、上記板状体を導電性の(001)−Si単結晶体とする、請求項1から7の何れかに記載のIII族窒化物半導体発光素子。
- 上記板状体が、その<110>結晶方向を、(0001)−サファイア基板の[1.1.−2.0.]結晶方位に平行として設けられている、請求項8に記載のIII族窒化物半導体発光素子。
- 少なくとも、互いに電気伝導型が異なる2つのIII族窒化物半導体層と、その中間に設けられたIII族窒化物半導体からなる発光層とを積層した積層構造体からなるIII族窒化物半導体発光素子の製造方法において、
上記積層構造体を設けるために使用された結晶基板とは反対側の積層構造体の最表層表面に、その結晶基板とは異なる材料からなる板状体を設け、
上記結晶基板を除去する、
ことを特徴とするIII族窒化物半導体発光素子の製造方法。 - 請求項1から9の何れか1項に記載のIII族窒化物半導体発光素子を備えている、ことを特徴とするLEDランプ。
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US (1) | US7495261B2 (ja) |
JP (1) | JP2005303287A (ja) |
TW (1) | TWI287880B (ja) |
WO (1) | WO2005091391A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2007094516A1 (en) * | 2006-02-16 | 2007-08-23 | Showa Denko K.K. | GaN-BASED SEMICONDUCTOR LIGHT-EMITTING DEVICE AND METHOD FOR THE FABRICATION THEREOF |
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WO2005091391A1 (en) | 2005-09-29 |
TW200539482A (en) | 2005-12-01 |
US20070278509A1 (en) | 2007-12-06 |
US7495261B2 (en) | 2009-02-24 |
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