KR100495215B1 - 수직구조 갈륨나이트라이드 발광다이오드 및 그 제조방법 - Google Patents
수직구조 갈륨나이트라이드 발광다이오드 및 그 제조방법 Download PDFInfo
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- KR100495215B1 KR100495215B1 KR10-2002-0084703A KR20020084703A KR100495215B1 KR 100495215 B1 KR100495215 B1 KR 100495215B1 KR 20020084703 A KR20020084703 A KR 20020084703A KR 100495215 B1 KR100495215 B1 KR 100495215B1
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- 238000000034 method Methods 0.000 title claims abstract description 60
- 239000000758 substrate Substances 0.000 claims abstract description 126
- 239000010410 layer Substances 0.000 claims abstract description 121
- 229910052594 sapphire Inorganic materials 0.000 claims abstract description 71
- 239000010980 sapphire Substances 0.000 claims abstract description 71
- 238000005253 cladding Methods 0.000 claims abstract description 51
- 239000013078 crystal Substances 0.000 claims abstract description 40
- 239000012790 adhesive layer Substances 0.000 claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 claims abstract description 25
- 238000005520 cutting process Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 21
- 229910052710 silicon Inorganic materials 0.000 claims description 16
- 239000010703 silicon Substances 0.000 claims description 16
- 229910045601 alloy Inorganic materials 0.000 claims description 12
- 239000000956 alloy Substances 0.000 claims description 12
- 229910052709 silver Inorganic materials 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 7
- 229910015363 Au—Sn Inorganic materials 0.000 claims description 5
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 5
- 229910020220 Pb—Sn Inorganic materials 0.000 claims description 5
- 229910052732 germanium Inorganic materials 0.000 claims description 5
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052738 indium Inorganic materials 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 5
- 239000010944 silver (metal) Substances 0.000 claims description 5
- 229910052718 tin Inorganic materials 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 238000005304 joining Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 113
- 229910002601 GaN Inorganic materials 0.000 description 112
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 14
- 239000004065 semiconductor Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 235000012431 wafers Nutrition 0.000 description 4
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 238000003486 chemical etching Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
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- 230000001070 adhesive effect Effects 0.000 description 1
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- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000005498 polishing Methods 0.000 description 1
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
Classifications
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- 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]
- H10H20/01—Manufacture or treatment
- H10H20/011—Manufacture or treatment of bodies, e.g. forming semiconductor layers
- H10H20/018—Bonding of wafers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2221/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof covered by H01L21/00
- H01L2221/67—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere
- H01L2221/683—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L2221/68304—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
- H01L2221/68363—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support used in a transfer process involving transfer directly from an origin substrate to a target substrate without use of an intermediate handle substrate
-
- 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]
- H10H20/01—Manufacture or treatment
-
- 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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Abstract
Description
Claims (17)
- 제1 컨택이 형성된 상면을 갖는 제1 도전형 GaN 클래드층;상기 제1 도전형 GaN 클래드층 하면에 형성된 활성층;상기 활성층 하면에 형성된 제2 도전형 GaN 클래드층;상기 제2 도전형 GaN 클래드층에 형성된 도전성 접착층; 및상기 도전성 접착층 하면에 형성되며, 제2 컨택이 형성된 하면을 갖는 도전성 기판을 포함하고,상기 도전성 접착층은, Au-Sn, Sn, In, Au-Ag 및 Pb-Sn을 포함하는 그룹으로부터 선택된 물질로 이루어진 것을 특징으로 하는 GaN 발광 다이오드.
- 제1항에 있어서,상기 제2 도전형 GaN 클래드층과 상기 도전성 접착층 사이에 형성된, 도전성물질로 이루어진 반사층을 더 포함하는 것을 특징으로 하는 GaN 발광 다이오드.
- 제2항에 있어서,상기 반사층은,Au, Ni, Ag, Al 및 그 합금으로 구성된 그룹으로부터 선택된 물질로 이루어진 것을 특징으로 하는 GaN 발광 다이오드.
- 제1항에 있어서,상기 도전성 기판은,실리콘, 게르마늄, 및 GaAs를 포함하는 그룹으로부터 선택된 물질로 이루어진 것을 특징으로 하는 GaN 발광 다이오드.
- 삭제
- 제1항에 있어서,상기 제1 도전형 GaN 클래드층은 n형 불순물이 도핑된 GaN 결정층이며,상기 제2 도전형 클래드층은 p형 불순물이 도핑된 GaN 결정층인 것을 특징으로 하는 GaN 발광 다이오드.
- 사파이어기판 상에, 제1 도전형 GaN 클래드층, 활성층 및 제2 도전형 GaN 클래드층이 순차적으로 배치된 발광구조물을 형성하는 단계;상기 발광구조물을 소정의 크기로 절단하는 단계;도전성 접착층을 이용하여 상기 발광구조물의 노출된 상면에 도전성 기판을 접합하는 단계;상기 발광구조물로부터 상기 사파이어기판을 제거하는 단계;,상기 제1 도전형 클래드층의 양면 중 상기 사파이어 기판이 제거된 면과 상기 도전성 기판의 노출된 면에 제1 및 제2 컨택을 각각 형성하는 단계; 및,상기 제1 및 제2 컨택이 형성된 결과물을 개별 발광다이오드로 절단하는 단계를 포함하는 GaN 발광 다이오드 제조방법.
- 제7항에 있어서,상기 제2 도전형 GaN 클래드층 상에 도전성 물질로 이루어진 반사층을 형성하는 단계를 더 포함하는 것을 특징으로 하는 GaN 발광 다이오드 제조방법.
- 제8항에 있어서,상기 반사층은,Au, Ni, Ag, Al 및 그 합금으로 구성된 그룹으로부터 선택된 물질로 이루어진 것을 특징으로 하는 GaN 발광 다이오드 제조방법.
- 제7항에 있어서,상기 발광구조물의 노출된 상면에 도전성 기판을 접합하는 단계는,상기 도전성 기판의 하면에 상기 도전성 접착층을 형성하는 단계와,상기 도전성 기판의 상기 하면과 상기 발광구조물의 노출된 상면을 접합시키는 단계로 이루어진 것을 특징으로 하는 GaN 발광 다이오드 제조방법.
- 제7항에 있어서,상기 발광구조물의 노출된 상면에 도전성 기판을 접합하는 단계는,상기 발광구조물의 노출된 상면에 상기 도전성 접착층을 형성하는 단계와,상기 도전성 기판을 상기 발광구조물의 상면에 접합시키는 단계로 이루어진 것을 특징으로 하는 GaN 발광 다이오드 제조방법.
- 제7항에 있어서,상기 사파이어기판을 제거하는 단계는,상기 사파이어기판 하부에 레이저 빔을 조사하여 상기 발광구조물로부터 상기 사파이어기판을 분리하는 단계인 것을 특징으로 하는 GaN 발광 다이오드 제조방법
- 제12항에 있어서,상기 발광구조물이 절단되는 소정의 크기는, 상기 레이저빔에 의한 조사면적과 동일하거나 작은 것을 특징으로 하는 GaN 발광 다이오드 제조방법.
- 제12항에 있어서,상기 발광구조물이 절단되는 소정의 크기는, 상기 분리된 발광구조물이 각각 개별 발광다이오드의 크기에 일치하며,상기 개별 발광다이오드로 절단하는 단계는 상기 도전성 기판을 개별 발광다이오드 크기로 절단하는 것을 특징으로 하는 GaN 발광 다이오드 제조방법.
- 제7항에 있어서,상기 도전성 기판은,실리콘, 게르마늄 및 GaAs를 포함하는 그룹으로부터 선택된 물질로 이루어진 것을 특징으로 하는 GaN 발광 다이오드 제조방법.
- 제7항에 있어서,상기 도전성 접착층은,Au-Sn, Sn, In, Au-Ag 및 Pb-Sn을 포함하는 그룹으로부터 선택된 물질로 이루어진 것을 특징으로 하는 GaN 발광 다이오드 제조방법.
- 제7항에 있어서,상기 제1 도전형 GaN 클래드층은 n형 불순물이 도핑된 GaN 결정층이며,상기 제2 도전형 클래드층은 p형 불순물이 도핑된 GaN 결정층인 것을 특징으로 하는 GaN 발광 다이오드 제조방법.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0084703A KR100495215B1 (ko) | 2002-12-27 | 2002-12-27 | 수직구조 갈륨나이트라이드 발광다이오드 및 그 제조방법 |
TW092116908A TWI242891B (en) | 2002-12-27 | 2003-06-20 | Method for manufacturing vertical GaN light emitting diode |
US10/601,597 US7268372B2 (en) | 2002-12-27 | 2003-06-24 | Vertical GaN light emitting diode and method for manufacturing the same |
JP2003182502A JP2005108863A (ja) | 2002-12-27 | 2003-06-26 | 垂直構造ガリウムナイトライド発光ダイオード及びその製造方法 |
US11/115,237 US7112456B2 (en) | 2002-12-27 | 2005-04-27 | Vertical GaN light emitting diode and method for manufacturing the same |
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KR10-2002-0084703A KR100495215B1 (ko) | 2002-12-27 | 2002-12-27 | 수직구조 갈륨나이트라이드 발광다이오드 및 그 제조방법 |
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KR20040058479A KR20040058479A (ko) | 2004-07-05 |
KR100495215B1 true KR100495215B1 (ko) | 2005-06-14 |
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US (2) | US7268372B2 (ko) |
JP (1) | JP2005108863A (ko) |
KR (1) | KR100495215B1 (ko) |
TW (1) | TWI242891B (ko) |
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US20050214965A1 (en) | 2005-09-29 |
TWI242891B (en) | 2005-11-01 |
JP2005108863A (ja) | 2005-04-21 |
US7268372B2 (en) | 2007-09-11 |
US7112456B2 (en) | 2006-09-26 |
US20050173692A1 (en) | 2005-08-11 |
TW200411955A (en) | 2004-07-01 |
KR20040058479A (ko) | 2004-07-05 |
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