KR100406200B1 - 이중 헤테로구조체를 구비한 발광 질화갈륨계 화합물 반도체 장치 - Google Patents
이중 헤테로구조체를 구비한 발광 질화갈륨계 화합물 반도체 장치 Download PDFInfo
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- KR100406200B1 KR100406200B1 KR1019980015415A KR19980015415A KR100406200B1 KR 100406200 B1 KR100406200 B1 KR 100406200B1 KR 1019980015415 A KR1019980015415 A KR 1019980015415A KR 19980015415 A KR19980015415 A KR 19980015415A KR 100406200 B1 KR100406200 B1 KR 100406200B1
- Authority
- KR
- South Korea
- Prior art keywords
- layer
- light emitting
- type
- doped
- compound semiconductor
- Prior art date
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 83
- 229910002601 GaN Inorganic materials 0.000 title claims abstract description 80
- 150000001875 compounds Chemical class 0.000 title claims abstract description 52
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 title abstract description 64
- 239000012535 impurity Substances 0.000 claims abstract description 106
- 238000000034 method Methods 0.000 claims description 53
- 108091006149 Electron carriers Proteins 0.000 claims description 34
- 229910052725 zinc Inorganic materials 0.000 claims description 28
- -1 Gallium nitride compound Chemical class 0.000 claims description 13
- 229910052749 magnesium Inorganic materials 0.000 claims description 7
- 229910052793 cadmium Inorganic materials 0.000 claims description 4
- 229910002704 AlGaN Inorganic materials 0.000 claims 4
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052733 gallium Inorganic materials 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 3
- 150000004767 nitrides Chemical class 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 370
- 238000005253 cladding Methods 0.000 description 65
- 239000000758 substrate Substances 0.000 description 45
- 239000011701 zinc Substances 0.000 description 39
- 239000011777 magnesium Substances 0.000 description 35
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 28
- 239000007789 gas Substances 0.000 description 22
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 20
- 229910052710 silicon Inorganic materials 0.000 description 20
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 17
- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 description 15
- HQWPLXHWEZZGKY-UHFFFAOYSA-N diethylzinc Chemical compound CC[Zn]CC HQWPLXHWEZZGKY-UHFFFAOYSA-N 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 14
- 238000000137 annealing Methods 0.000 description 13
- 229910052594 sapphire Inorganic materials 0.000 description 13
- 239000010980 sapphire Substances 0.000 description 13
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 12
- 229910000077 silane Inorganic materials 0.000 description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 11
- 239000010703 silicon Substances 0.000 description 11
- 229910021529 ammonia Inorganic materials 0.000 description 10
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- 239000001257 hydrogen Substances 0.000 description 9
- 239000012159 carrier gas Substances 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- UJYLYGDHTIVYRI-UHFFFAOYSA-N cadmium(2+);ethane Chemical compound [Cd+2].[CH2-]C.[CH2-]C UJYLYGDHTIVYRI-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000000103 photoluminescence spectrum Methods 0.000 description 4
- IBEFSUTVZWZJEL-UHFFFAOYSA-N trimethylindium Chemical compound C[In](C)C IBEFSUTVZWZJEL-UHFFFAOYSA-N 0.000 description 4
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 3
- 239000002019 doping agent Substances 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 229910052738 indium Inorganic materials 0.000 description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- MHYQBXJRURFKIN-UHFFFAOYSA-N C1(C=CC=C1)[Mg] Chemical compound C1(C=CC=C1)[Mg] MHYQBXJRURFKIN-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- 229910052790 beryllium Inorganic materials 0.000 description 2
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 2
- VQNPSCRXHSIJTH-UHFFFAOYSA-N cadmium(2+);carbanide Chemical compound [CH3-].[CH3-].[Cd+2] VQNPSCRXHSIJTH-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000005424 photoluminescence Methods 0.000 description 2
- 238000001004 secondary ion mass spectrometry Methods 0.000 description 2
- 229910052712 strontium Inorganic materials 0.000 description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229910019080 Mg-H Inorganic materials 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- RNQKDQAVIXDKAG-UHFFFAOYSA-N aluminum gallium Chemical compound [Al].[Ga] RNQKDQAVIXDKAG-UHFFFAOYSA-N 0.000 description 1
- AJGDITRVXRPLBY-UHFFFAOYSA-N aluminum indium Chemical compound [Al].[In] AJGDITRVXRPLBY-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- NWAIGJYBQQYSPW-UHFFFAOYSA-N azanylidyneindigane Chemical compound [In]#N NWAIGJYBQQYSPW-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229910021480 group 4 element Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- SPVXKVOXSXTJOY-UHFFFAOYSA-N selane Chemical compound [SeH2] SPVXKVOXSXTJOY-UHFFFAOYSA-N 0.000 description 1
- 229910000058 selane Inorganic materials 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 1
- RGGPNXQUMRMPRA-UHFFFAOYSA-N triethylgallium Chemical compound CC[Ga](CC)CC RGGPNXQUMRMPRA-UHFFFAOYSA-N 0.000 description 1
- OTRPZROOJRIMKW-UHFFFAOYSA-N triethylindigane Chemical compound CC[In](CC)CC OTRPZROOJRIMKW-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- H01L33/0004—Devices characterised by their operation
- H01L33/002—Devices characterised by their operation having heterojunctions or graded gap
- H01L33/0025—Devices characterised by their operation having heterojunctions or graded gap comprising only AIIIBV compounds
-
- 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
- H01L33/025—Physical imperfections, e.g. particular concentration or distribution of impurities
-
- 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
- H01L33/325—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table containing nitrogen characterised by the doping materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/32—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures
- H01S5/323—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser
- H01S5/32308—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser emitting light at a wavelength less than 900 nm
- H01S5/32341—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser emitting light at a wavelength less than 900 nm blue laser based on GaN or GaP
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Led Devices (AREA)
- Semiconductor Lasers (AREA)
Abstract
Description
Claims (8)
- Si를 함유하는 n형 GaN으로 이루어지는 접촉층을 포함하는 n형 GaN 또는 n형 AlGaN 화합물반도체층과, Mg을 함유하는 p형 GaN으로 이루어지는 접촉층을 포함하는 p형 GaN 또는 p형 AlGaN 화합물반도체층의 사이에, Zn, Cd, Mg로부터 선택된 적어도 한 종류의 불순물을 함유하는 n형 InxGa1-xN(단지, 0<x<1)을 발광층으로서 구비하는 것을 특징으로 하는 이중헤테로구조의 질화갈륨계 화합물반도체발광소자.
- 제 1 항에 있어서,상기 n형 InxGa1-xN층의 전자캐리어농도가 1×1017~5×1021/㎤의 범위내에 있는 것을 특징으로 하는 발광소자.
- 제 1 항에 있어서,상기 발광층이 10Å ~ 0.5㎛의 두께를 갖는 것을 특징으로 하는 발광소자.
- 제 2 항에 있어서,상기 발광층이 10Å ~ 0.5㎛의 두께를 갖는 것을 특징으로 하는 발광소자.
- Si를 함유하는 n형 GaN으로 이루어지는 접촉층을 포함하는 n형 GaN 또는 n형 AlGaN 화합물반도체층과, Mg를 함유하는 p형 GaN으로 이루어지는 접촉층을 포함하는 p형 GaN 또는 p형 AlGaN 화합물반도체층의 사이에, n형 불순물로 Si를 함유하고 p형 불순물로 Zn 또는 Mg를 함유하는 n형 InxGa1-xN(다만, 0<x<1)을 발광층으로서 구비하는 것을 특징으로 하는 이중헤테로구조의 질화갈륨계 화합물반도체 발광소자.
- 제 5 항에 있어서,상기 n형 InxGa1-xN층의 전자캐리어농도가 1×1017~5×1021/㎤의 범위내에 있는 것을 특징으로 하는 발광소자.
- 제 5 항에 있어서,상기 발광층이 10Å ~ 0.5㎛의 두께를 갖는 것을 특징으로 하는 발광소자.
- 제 6 항에 있어서,상기 발광층이 10Å ~ 0.5㎛의 두께를 갖는 것을 특징으로 하는 발광소자.
Applications Claiming Priority (16)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33555692 | 1992-11-20 | ||
JP4-335556 | 1992-11-20 | ||
JP5-18122 | 1993-01-08 | ||
JP1812393 | 1993-01-08 | ||
JP5-18123 | 1993-01-08 | ||
JP1812293 | 1993-01-08 | ||
JP7087393A JP2560963B2 (ja) | 1993-03-05 | 1993-03-05 | 窒化ガリウム系化合物半導体発光素子 |
JP7087493A JP2560964B2 (ja) | 1993-03-05 | 1993-03-05 | 窒化ガリウム系化合物半導体発光素子 |
JP5-70873 | 1993-03-05 | ||
JP5-70874 | 1993-03-05 | ||
JP5-114544 | 1993-05-17 | ||
JP5-114543 | 1993-05-17 | ||
JP11454493A JP2713095B2 (ja) | 1993-01-08 | 1993-05-17 | 半導体発光素子およびその製造方法 |
JP5-114542 | 1993-05-17 | ||
JP11454393A JP2713094B2 (ja) | 1993-01-08 | 1993-05-17 | 半導体発光素子およびその製造方法 |
JP11454293A JP2809045B2 (ja) | 1992-11-20 | 1993-05-17 | 窒化物半導体発光素子 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019930024797A Division KR970007135B1 (ko) | 1992-11-19 | 1993-11-19 | 이중 헤테로 구조체를 구비한 발광 질화갈륨계 화합물 반도체장치 |
Publications (1)
Publication Number | Publication Date |
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KR100406200B1 true KR100406200B1 (ko) | 2004-01-24 |
Family
ID=27571840
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019930024797A KR970007135B1 (ko) | 1992-11-19 | 1993-11-19 | 이중 헤테로 구조체를 구비한 발광 질화갈륨계 화합물 반도체장치 |
KR1019980015416A KR100406201B1 (ko) | 1992-11-20 | 1998-04-29 | 이중 헤테로 구조체를 구비한 발광 질화갈륨계 화합물 반도체 장치 |
KR1019980015415A KR100406200B1 (ko) | 1992-11-20 | 1998-04-29 | 이중 헤테로구조체를 구비한 발광 질화갈륨계 화합물 반도체 장치 |
KR1019990033018A KR100445524B1 (ko) | 1992-11-20 | 1999-08-12 | 이중 헤테로 구조체를 구비한 발광 질화갈륨계 화합물 반도체장치 |
KR1019990033017A KR100289626B1 (ko) | 1992-11-20 | 1999-08-12 | 이중 헤테로 구조체를 구비한 발광 질화갈륨계 화합물 반도체장치 |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
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KR1019930024797A KR970007135B1 (ko) | 1992-11-19 | 1993-11-19 | 이중 헤테로 구조체를 구비한 발광 질화갈륨계 화합물 반도체장치 |
KR1019980015416A KR100406201B1 (ko) | 1992-11-20 | 1998-04-29 | 이중 헤테로 구조체를 구비한 발광 질화갈륨계 화합물 반도체 장치 |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
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KR1019990033018A KR100445524B1 (ko) | 1992-11-20 | 1999-08-12 | 이중 헤테로 구조체를 구비한 발광 질화갈륨계 화합물 반도체장치 |
KR1019990033017A KR100289626B1 (ko) | 1992-11-20 | 1999-08-12 | 이중 헤테로 구조체를 구비한 발광 질화갈륨계 화합물 반도체장치 |
Country Status (4)
Country | Link |
---|---|
US (9) | US5578839A (ko) |
EP (2) | EP0599224B2 (ko) |
KR (5) | KR970007135B1 (ko) |
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US5880486A (en) | 1999-03-09 |
EP0844675A2 (en) | 1998-05-27 |
KR970007135B1 (ko) | 1997-05-02 |
EP0844675A3 (en) | 1998-10-21 |
US5734182A (en) | 1998-03-31 |
EP0844675B1 (en) | 2005-06-08 |
KR100406201B1 (ko) | 2004-01-24 |
DE69319854T2 (de) | 1999-03-11 |
US6078063A (en) | 2000-06-20 |
US20030006424A1 (en) | 2003-01-09 |
EP0599224B2 (en) | 2008-04-09 |
EP0599224B1 (en) | 1998-07-22 |
US5747832A (en) | 1998-05-05 |
US6791103B2 (en) | 2004-09-14 |
DE69333829D1 (de) | 2005-07-14 |
DE69333829T2 (de) | 2006-05-11 |
KR100445524B1 (ko) | 2004-08-21 |
KR940012684A (ko) | 1994-06-24 |
US6215133B1 (en) | 2001-04-10 |
US5578839A (en) | 1996-11-26 |
EP0599224A1 (en) | 1994-06-01 |
DE69319854D1 (de) | 1998-08-27 |
US6469323B1 (en) | 2002-10-22 |
KR100289626B1 (ko) | 2001-05-02 |
US20030216011A1 (en) | 2003-11-20 |
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