KR100663910B1 - 발광 소자 및 이의 제조 방법 - Google Patents
발광 소자 및 이의 제조 방법 Download PDFInfo
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- KR100663910B1 KR100663910B1 KR1020050056549A KR20050056549A KR100663910B1 KR 100663910 B1 KR100663910 B1 KR 100663910B1 KR 1020050056549 A KR1020050056549 A KR 1020050056549A KR 20050056549 A KR20050056549 A KR 20050056549A KR 100663910 B1 KR100663910 B1 KR 100663910B1
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- Prior art keywords
- semiconductor layer
- type semiconductor
- light emitting
- emitting device
- layer
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- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 239000004065 semiconductor Substances 0.000 claims abstract description 156
- 238000000034 method Methods 0.000 claims abstract description 41
- 238000005530 etching Methods 0.000 claims abstract description 34
- 239000000758 substrate Substances 0.000 claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 229910052737 gold Inorganic materials 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- 239000010408 film Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 12
- 229920002120 photoresistant polymer Polymers 0.000 description 9
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 7
- 238000005229 chemical vapour deposition Methods 0.000 description 7
- 238000000605 extraction Methods 0.000 description 6
- 229910002601 GaN Inorganic materials 0.000 description 5
- 239000004020 conductor Substances 0.000 description 5
- 239000010931 gold Substances 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 3
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- NWAIGJYBQQYSPW-UHFFFAOYSA-N azanylidyneindigane Chemical compound [In]#N NWAIGJYBQQYSPW-UHFFFAOYSA-N 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910000980 Aluminium gallium arsenide Inorganic materials 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- 229910005540 GaP Inorganic materials 0.000 description 1
- 229910010199 LiAl Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000000454 electroless metal deposition Methods 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Images
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
-
- 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
- H01L33/0008—Devices characterised by their operation having p-n or hi-lo junctions
-
- 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
- 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
- H01L33/04—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 quantum effect structure or superlattice, e.g. tunnel junction
-
- 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
- H01L33/36—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
- H01L33/40—Materials therefor
- H01L33/42—Transparent materials
-
- 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
- H01L2933/0033—Processes relating to semiconductor body packages
-
- 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
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0066—Processes relating to semiconductor body packages relating to arrangements for conducting electric current to or from the semiconductor body
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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 (9)
- 기판 상에 N형 반도체층, P형 반도체층을 순차적으로 형성하는 단계;상기 P형 반도체층 상부에 상기 P형 반도체층의 소정 영역을 노출시키는 식각 마스크 패턴을 형성하는 단계;1차 식각으로 상기 식각 마스크 패턴에 의해 노출된 상기 P형 반도체층을 식각하여 상기 N형 반도체층의 소정 영역을 노출시키는 단계;2차 식각으로 상기 식각 마스크 패턴에 의해 노출된 상기 P형 반도체층을 식각하여 상기 P형 반도체층의 적어도 일측면이 수평면으로부터 소정의 기울기를 갖도록 하는 단계;상기 식각 마스크 패턴을 제거하는 단계;상기 P형 반도체층 상부에 투명 전극층을 형성하는 단계; 및상기 투명 전극층 및 상기 노출된 N형 반도체층 상부에 오믹 금속층을 형성하는 단계를 포함하는 발광 소자의 제조 방법.
- 청구항 1에 있어서,상기 P형 반도체층을 제거하는 단계는,엑시머 레이저를 상부에서 조사하여 상기 소정의 홈을 형성하는 단계; 및KOH 또는 NaOH계 용액을 사용하여 에칭하는 단계를 포함하는 것을 특징으로 하는 발광 소자의 제조 방법.
- 청구항 1에 있어서,상기 절연막은 실리콘 산화물, 실리콘 질화물, 알루미늄 산화물 중 어느 하나인 것을 특징으로 하는 발광 소자의 제조 방법.
- 청구항 1에 있어서,상기 P형 반도체층의 제거로 인해 노출된 N형 반도체층의 일부를 제거하여 다수개의 발광 셀을 형성하는 단계; 및브리지 배선을 통해 일 발광 셀의 N형 반도체층과 그에 인접한 다른 일 발광 셀의 P형 반도체층을 연결하는 단계를 더 포함하는 것을 특징으로 하는 발광 소자의 제조 방법.
- 청구항 4에 있어서,상기 브리지 배선은 브리지(Bridge) 공정 또는 스텝 커버(Step Cover) 공정을 통해 일 발광 셀의 N형 반도체층과 인접한 다른 일 발광 셀의 P형 반도체층을 연결하는 것을 특징으로 하는 발광 소자의 제조 방법.
- 청구항 1에 있어서,상기 오믹 금속층은 Cr 또는 Au를 이용하여 형성하는 발광 소자의 제조 방법.
- 청구항 1에 있어서,상기 식각 마스크 패턴을 제거하는 단계 이후에,상기 기판의 배면을 소정 두께 제거하는 단계; 및상기 기판의 배면에 Al, Ti, Ag 또는 그 합금을 증착하는 단계를 더 포함하는 것을 특징으로 하는 발광 소자의 제조 방법.
- 발광 소자에 있어서,청구항 1 내지 7 중 어느 한 항에 따라 제조된 것을 특징으로 하는 발광 소자.
- 청구항 8에 있어서,상기 N형 반도체층 또는 P형 반도체층을 포함하는 측면이 수평면으로부터 30 내지 75°의 기울기인 것을 특징으로 하는 발광 소자.
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KR1020050056549A KR100663910B1 (ko) | 2005-06-28 | 2005-06-28 | 발광 소자 및 이의 제조 방법 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102263176A (zh) * | 2010-05-24 | 2011-11-30 | Lg伊诺特有限公司 | 发光器件、发光器件封装以及发光装置系统 |
WO2014193109A1 (en) * | 2013-05-29 | 2014-12-04 | Seoul Viosys Co., Ltd. | Light emitting diode having plurality of light emitting elements and method of fabricating the same |
-
2005
- 2005-06-28 KR KR1020050056549A patent/KR100663910B1/ko active IP Right Grant
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102263176A (zh) * | 2010-05-24 | 2011-11-30 | Lg伊诺特有限公司 | 发光器件、发光器件封装以及发光装置系统 |
US8304800B2 (en) | 2010-05-24 | 2012-11-06 | Lg Innotek Co., Ltd. | Light emitting device, light emitting device package, and lighting device system |
WO2014193109A1 (en) * | 2013-05-29 | 2014-12-04 | Seoul Viosys Co., Ltd. | Light emitting diode having plurality of light emitting elements and method of fabricating the same |
US9871168B2 (en) | 2013-05-29 | 2018-01-16 | Seoul Viosys Co., Ltd. | Light emitting diode device having connected light emitting diode elements and method of fabricating the same |
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