KR20120047073A - 질화갈륨계 반도체 발광소자 - Google Patents
질화갈륨계 반도체 발광소자 Download PDFInfo
- Publication number
- KR20120047073A KR20120047073A KR1020100108747A KR20100108747A KR20120047073A KR 20120047073 A KR20120047073 A KR 20120047073A KR 1020100108747 A KR1020100108747 A KR 1020100108747A KR 20100108747 A KR20100108747 A KR 20100108747A KR 20120047073 A KR20120047073 A KR 20120047073A
- Authority
- KR
- South Korea
- Prior art keywords
- layer
- gan
- gallium nitride
- emitting device
- light emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910002601 GaN Inorganic materials 0.000 title claims abstract description 115
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000004065 semiconductor Substances 0.000 title claims abstract description 37
- 150000001875 compounds Chemical class 0.000 title description 5
- 229910052738 indium Inorganic materials 0.000 claims abstract description 32
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims abstract description 31
- 230000004888 barrier function Effects 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims description 13
- 239000000758 substrate Substances 0.000 description 25
- 239000013078 crystal Substances 0.000 description 12
- 230000005494 condensation Effects 0.000 description 8
- 238000009833 condensation Methods 0.000 description 8
- 239000012535 impurity Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 229910052594 sapphire Inorganic materials 0.000 description 3
- 239000010980 sapphire Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910020068 MgAl Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 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
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/815—Bodies having stress relaxation structures, e.g. buffer layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/811—Bodies having quantum effect structures or superlattices, e.g. tunnel junctions
- H10H20/812—Bodies having quantum effect structures or superlattices, e.g. tunnel junctions within the light-emitting regions, e.g. having quantum confinement structures
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/822—Materials of the light-emitting regions
- H10H20/824—Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP
- H10H20/825—Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP containing nitrogen, e.g. GaN
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- Led Devices (AREA)
Abstract
Description
도 2는 본 발명의 일실시예에 따른 질화갈륨계 반도체 발광소자의 에너지 준위도이다.
110 p-GaN층
120 활성층
121 양자장벽층
122 InGaN 양자우물층
130 스트레인 버퍼층
140 n-GaN층
150 p전극
160 n전극
Claims (7)
- p-GaN층;
상기 p-GaN층 상의, 양자장벽층 및 InGaN 양자우물층을 포함하는 활성층;
상기 InGaN 양자우물층 상의, 상기 활성층의 인듐함량보다 높은 함량으로 인듐을 포함하는 스트레인 버퍼층;
상기 스트레인 버퍼층 상의 n-GaN층; 및
상기 p-GaN층 및 상기 n-GaN층 상에 각각 형성된 p전극 및 n전극;을 포함하는 질화갈륨계 반도체 발광소자. - 청구항 1에 있어서,
상기 스트레인 버퍼층은 InGaN을 포함하는 것을 특징으로 하는 질화갈륨계 반도체 발광소자. - 청구항 1에 있어서,
상기 InGaN 양자우물층의 인듐함량은 10% 내지 15%인 것을 특징으로 하는 질화갈륨계 반도체 발광소자. - 청구항 3에 있어서,
상기 스트레인 버퍼층의 인듐함량은 7% 내지 20% 이하인 것을 특징으로 하는 질화갈륨계 반도체 발광소자. - 청구항 1에 있어서,
상기 스트레인 버퍼층의 두께는 상기 활성층의 두께의 4배 내지 5배인 것을 특징으로 하는 질화갈륨계 반도체 발광소자. - 청구항 1에 있어서,
상기 양자장벽층의 두께는 상기 InGaN 양자우물층 두께의 2배 내지 3배인 것을 특징으로 하는 질화갈륨계 반도체 발광소자. - 청구항 1에 있어서,
상기 활성층은 상기 양자장벽층 및 상기 InGaN 양자우물층 페어를 2이상 포함하는 것을 특징으로 하는 질화갈륨계 반도체 발광소자.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100108747A KR20120047073A (ko) | 2010-11-03 | 2010-11-03 | 질화갈륨계 반도체 발광소자 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100108747A KR20120047073A (ko) | 2010-11-03 | 2010-11-03 | 질화갈륨계 반도체 발광소자 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20120047073A true KR20120047073A (ko) | 2012-05-11 |
Family
ID=46265957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020100108747A Ceased KR20120047073A (ko) | 2010-11-03 | 2010-11-03 | 질화갈륨계 반도체 발광소자 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR20120047073A (ko) |
-
2010
- 2010-11-03 KR KR1020100108747A patent/KR20120047073A/ko not_active Ceased
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Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 20101103 |
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Patent event date: 20120926 Comment text: Decision to Refuse Application Patent event code: PE06012S01D Patent event date: 20120207 Comment text: Notification of reason for refusal Patent event code: PE06011S01I |