KR20080052016A - 전류 확산층을 포함하는 발광소자의 제조방법 - Google Patents
전류 확산층을 포함하는 발광소자의 제조방법 Download PDFInfo
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- KR20080052016A KR20080052016A KR1020060123959A KR20060123959A KR20080052016A KR 20080052016 A KR20080052016 A KR 20080052016A KR 1020060123959 A KR1020060123959 A KR 1020060123959A KR 20060123959 A KR20060123959 A KR 20060123959A KR 20080052016 A KR20080052016 A KR 20080052016A
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- 238000003892 spreading Methods 0.000 title claims abstract description 35
- 230000007480 spreading Effects 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 238000009792 diffusion process Methods 0.000 claims description 41
- 229910002704 AlGaN Inorganic materials 0.000 claims description 26
- 230000004888 barrier function Effects 0.000 claims description 17
- 238000005530 etching Methods 0.000 claims description 12
- 230000005533 two-dimensional electron gas Effects 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000004047 hole gas Substances 0.000 abstract description 5
- 150000004767 nitrides Chemical class 0.000 description 11
- 238000005253 cladding Methods 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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Classifications
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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
- H01L33/14—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 with a carrier transport control structure, e.g. highly-doped semiconductor layer or current-blocking structure
-
- 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
- H01L33/36—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 electrodes
- H01L33/38—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 electrodes with a particular shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0016—Processes relating to electrodes
-
- 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
- H01L33/20—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 with a particular shape, e.g. curved or truncated substrate
-
- 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
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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)
Abstract
Description
Claims (8)
- a) 기판 상에 완충층을 형성하는 단계;b) 상기 완충층 상에 이종 접합구조를 이용한 n형 전류 확산층을 포함하는 다층 구조의 n-형 전극층을 형성하는 단계;c) 상기 n-형 전극층 상에 활성층을 형성하는 단계;d) 상기 활성층 상에 이종 접합 구조를 이용한 p형 전류 확산층을 포함하는 다층 구조의 p-형 전극층을 형성하는 단계를 포함하는 발광소자의 제조방법.
- 제1항에 있어서,e) 상기 p-형 전극층이 형성된 다음, 상기 n-형 전극층에 형성된 상기 n형 전류 확산층이 노출되도록 식각하는 단계;f) 식각 공정을 이용하여 상기 노출된 n형 전류 확산층과 상기 p형 전류 확산층 각각에 n-형 트렌치 및 p-형 트렌치를 형성하는 단계;g) 상기 각각의 트렌치에 금속 전극층을 삽입하여 n-형 금속 전극층 및 p-형금속 전극층을 형성하는 단계; 및h) 상기 p-형 금속 전극층 상에 투명 전극층을 형성하는 단계를 더 포함하는 발광소자의 제조방법.
- 제2항에 있어서, 상기 b) 단계는b1) 전자를 공급하는 n-GaN층을 형성하는 단계;b2) 상기 n-GaN층 상에 AlGaN/GaN 이종 접합 구조인 상기 n-형 전류 확산층을 형성하는 단계;b3) 상기 n-형 전류 확산층 상에 n+-GaN층을 형성하는 단계를 포함하는 발광 소자의 제조방법.
- 제2항에 있어서, 상기 d) 단계는d1) 정공을 공급하는 p-GaN층을 형성하는 단계;d2) 상기 p-GaN층 상에 p-AlGaN/GaN 이종 접합 구조인 상기 p-형 전류 확산층을 형성하는 단계;d3) 상기 n-형 전류 확산층 상에 p형 장벽층을 형성하는 단계를 포함하는 발광소자의 제조방법.
- 제3항 또는 제4항에 있어서,상기 n-형 트렌치 및 p-형 트렌치의 두께는 상기 이종 접합 구조의 1 ~ 3주기 범위인 발광소자의 제조방법.
- 제4항에 있어서,상기 p형 장벽층은 30 ~ 100Å 두께 범위의 p+-AlGaN층인 발광소자의 제조방 법.
- 제1항에 있어서,상기 n형 전류 확산층을 이차원 전자 가스층으로 이용하기 위해, AlGaN/GaN 이종접합구조에서 AlGaN층은 도핑하지 않고, GaN층은 실리콘으로 도핑하는 발광소자의 제조방법.
- 제1항에 있어서,상기 p형 전류 확산층을 이차원 전공 가스층으로 이용하기 위해, p-AlGaN/GaN 이종접합구조에서 p-AlGaN층은 1017/㎤ 이하로 GaN층은 1017/㎤ 이상으로 Mg 도핑하는 발광소자의 제조방법.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060123959A KR100869962B1 (ko) | 2006-12-07 | 2006-12-07 | 전류 확산층을 포함하는 발광소자의 제조방법 |
JP2009540135A JP5048076B2 (ja) | 2006-12-07 | 2007-11-26 | 電流拡散層を含む発光ダイオードの製造方法 |
US12/446,635 US7998771B2 (en) | 2006-12-07 | 2007-11-26 | Manufacturing method of light emitting diode including current spreading layer |
PCT/KR2007/005995 WO2008069482A1 (en) | 2006-12-07 | 2007-11-26 | Manufacturing method of light emitting diode including current spreading layer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060123959A KR100869962B1 (ko) | 2006-12-07 | 2006-12-07 | 전류 확산층을 포함하는 발광소자의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080052016A true KR20080052016A (ko) | 2008-06-11 |
KR100869962B1 KR100869962B1 (ko) | 2008-11-24 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020060123959A KR100869962B1 (ko) | 2006-12-07 | 2006-12-07 | 전류 확산층을 포함하는 발광소자의 제조방법 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7998771B2 (ko) |
JP (1) | JP5048076B2 (ko) |
KR (1) | KR100869962B1 (ko) |
WO (1) | WO2008069482A1 (ko) |
Cited By (4)
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KR101051326B1 (ko) * | 2010-04-23 | 2011-07-22 | 주식회사 세미콘라이트 | 화합물 반도체 발광소자 |
KR20130075167A (ko) * | 2011-12-27 | 2013-07-05 | 엘지이노텍 주식회사 | 발광 소자 |
KR20150029163A (ko) * | 2013-09-09 | 2015-03-18 | 엘지이노텍 주식회사 | 발광 소자 |
KR101717623B1 (ko) * | 2016-03-17 | 2017-03-17 | 연세대학교 산학협력단 | 초박막 다성분계 이종접합 소재를 이용한 초고속 led 소자 |
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KR100903103B1 (ko) * | 2007-12-05 | 2009-06-16 | 우리엘에스티 주식회사 | 화합물 반도체를 이용한 발광소자 |
TW200929601A (en) * | 2007-12-26 | 2009-07-01 | Epistar Corp | Semiconductor device |
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US8338860B2 (en) * | 2009-10-30 | 2012-12-25 | Alpha And Omega Semiconductor Incorporated | Normally off gallium nitride field effect transistors (FET) |
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WO2012068066A2 (en) * | 2010-11-15 | 2012-05-24 | Sensor Electronic Technology, Inc. | Ohmic contact to semiconductor |
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US8785904B2 (en) * | 2011-04-20 | 2014-07-22 | Invenlux Corporation | Light-emitting device with low forward voltage and method for fabricating the same |
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US9362445B2 (en) | 2012-06-20 | 2016-06-07 | Nanyang Technological University | Light-emitting device |
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JP7005890B2 (ja) * | 2016-10-14 | 2022-01-24 | 株式会社リコー | 半導体発光素子、照明装置、ヘッドライト、移動体、イルミネーション装置、映像装置、投射型映像装置及びプロジェクター。 |
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KR20060053469A (ko) | 2004-11-16 | 2006-05-22 | 엘지이노텍 주식회사 | 반도체 발광소자 |
KR100631971B1 (ko) | 2005-02-28 | 2006-10-11 | 삼성전기주식회사 | 질화물 반도체 발광 소자 |
KR101171326B1 (ko) | 2005-03-29 | 2012-08-09 | 서울옵토디바이스주식회사 | 발광 소자 및 이의 제조 방법 |
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2006
- 2006-12-07 KR KR1020060123959A patent/KR100869962B1/ko active IP Right Grant
-
2007
- 2007-11-26 WO PCT/KR2007/005995 patent/WO2008069482A1/en active Application Filing
- 2007-11-26 JP JP2009540135A patent/JP5048076B2/ja not_active Expired - Fee Related
- 2007-11-26 US US12/446,635 patent/US7998771B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101051326B1 (ko) * | 2010-04-23 | 2011-07-22 | 주식회사 세미콘라이트 | 화합물 반도체 발광소자 |
KR20130075167A (ko) * | 2011-12-27 | 2013-07-05 | 엘지이노텍 주식회사 | 발광 소자 |
KR20150029163A (ko) * | 2013-09-09 | 2015-03-18 | 엘지이노텍 주식회사 | 발광 소자 |
KR101717623B1 (ko) * | 2016-03-17 | 2017-03-17 | 연세대학교 산학협력단 | 초박막 다성분계 이종접합 소재를 이용한 초고속 led 소자 |
Also Published As
Publication number | Publication date |
---|---|
KR100869962B1 (ko) | 2008-11-24 |
JP5048076B2 (ja) | 2012-10-17 |
JP2010512017A (ja) | 2010-04-15 |
US20100240162A1 (en) | 2010-09-23 |
US7998771B2 (en) | 2011-08-16 |
WO2008069482A1 (en) | 2008-06-12 |
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