JP5624747B2 - 複数の発光セルを有する発光素子及びその製造方法 - Google Patents
複数の発光セルを有する発光素子及びその製造方法 Download PDFInfo
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- JP5624747B2 JP5624747B2 JP2009258616A JP2009258616A JP5624747B2 JP 5624747 B2 JP5624747 B2 JP 5624747B2 JP 2009258616 A JP2009258616 A JP 2009258616A JP 2009258616 A JP2009258616 A JP 2009258616A JP 5624747 B2 JP5624747 B2 JP 5624747B2
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- 238000004519 manufacturing process Methods 0.000 title claims description 34
- 238000000034 method Methods 0.000 title claims description 27
- 239000010410 layer Substances 0.000 claims description 344
- 239000004065 semiconductor Substances 0.000 claims description 129
- 239000000758 substrate Substances 0.000 claims description 92
- 238000005530 etching Methods 0.000 claims description 71
- 229910052751 metal Inorganic materials 0.000 claims description 70
- 239000002184 metal Substances 0.000 claims description 70
- 230000002265 prevention Effects 0.000 claims description 38
- 150000001875 compounds Chemical class 0.000 claims description 24
- 230000001681 protective effect Effects 0.000 claims description 20
- 239000011229 interlayer Substances 0.000 claims description 19
- 229910052594 sapphire Inorganic materials 0.000 claims description 11
- 239000010980 sapphire Substances 0.000 claims description 11
- 238000000059 patterning Methods 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 5
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 5
- 230000003449 preventive effect Effects 0.000 claims 1
- 239000006227 byproduct Substances 0.000 description 7
- 150000002739 metals Chemical class 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000003491 array Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 4
- 239000002356 single layer Substances 0.000 description 4
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910002601 GaN Inorganic materials 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- 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
- H01L33/405—Reflective materials
-
- 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
- H01L33/44—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 coatings, e.g. passivation layer or anti-reflective coating
-
- 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
- H01L33/48—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 body packages
- H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Led Devices (AREA)
Description
Claims (7)
- 基板と、
前記基板の上部に互いに離隔して配置され、それぞれが第1の導電型上部半導体層、活性層、及び第2の導電型下部半導体層を有する複数の発光セルと、
前記基板と前記複数の発光セルとの間に互いに離隔して配置され、対応する前記第2の導電型下部半導体層にそれぞれ電気的に接続され、それぞれの一端部に隣接する発光セルに向かって延び、前記隣接する発光セルと対応する発光セルとの間の領域まで延在している延長部を有する複数の電極と、
隣接する発光セル間の領域であって、尚且つ隣接する電極間の領域に配置され、前記延長部の一部を露出させる開口部を有する絶縁層からなるエッチング防止層と、
前記発光セルの側面を覆う側面絶縁層と、
前記側面絶縁層によって発光セルの側面から離隔され、発光セルを電気的に接続する配線であり、その一端は1つの発光セルの上部半導体層に電気的に接続され、他端部は前記エッチング防止層の開口部を通じて前記1つの発光セルに隣接する発光セルの下部半導体層に電気的に接続された配線と
を備え、
前記複数の電極は、それぞれが反射層及び保護金属層を有し、
前記反射層は、前記第2の導電型下部半導体層の下部領域内に形成され、前記保護金属層は、前記反射層の側面及び下部面を覆うことを特徴とする発光素子。 - 前記基板と前記複数の電極との間に設けられた層間絶縁層、
を有することを特徴とする請求項1に記載の発光素子。 - 前記第1の導電型上部半導体層は、それぞれ粗表面を有することを特徴とする請求項1に記載の発光素子。
- 前記基板は、サファイア基板であることを特徴とする請求項1に記載の発光素子。
- 犠牲基板上に第1の導電型半導体層、第2の導電型半導体層、及び前記第1の導電型半導体層及び前記第2の導電型半導体層の間に設けられた活性層を有する複数の化合物半導体層を形成して、前記第1の導電型半導体層を前記犠牲基板に近く配置し、
前記複数の化合物半導体層上に前記第2の導電型半導体層を露出させる複数の開口部を有してエッチング防止層を形成し、
前記複数の開口部内に各々反射層を形成し、
前記エッチング防止層の開口部を充填することにより前記反射層を覆い、尚且つ前記エッチング防止層上に延びている延長部を有して、互いに離隔する複数の保護金属層を形成し、
前記複数の保護金属層上に層間絶縁層を形成し、
前記層間絶縁層上に基板をボンディングし、
前記犠牲基板を除去して、前記第1の導電型半導体層を露出させ、
前記エッチング防止層が露出するように前記複数の化合物半導体層をパターニングして、互いに離隔した複数の発光セルを形成し、
前記複数の発光セルを覆い、前記第1の導電型半導体層の上面の少なくとも一部を露出させる側面絶縁層を形成すると共に、前記エッチング防止層をパターニングして、前記複数の保護金属層の延長部を露出させる開口部を形成し、
前記第1の導電型半導体層と露出した前記複数の保護金属層の延長部を接続する配線を形成することを特徴とする発光素子の製造方法。 - 露出した前記第1の導電型半導体層の上面に粗表面を形成することを特徴とする請求項5に記載の発光素子の製造方法。
- 前記エッチング防止層は、シリコン酸化層またはシリコン窒化層で形成することを特徴とする請求項5に記載の発光素子の製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020080132750A KR101017395B1 (ko) | 2008-12-24 | 2008-12-24 | 복수개의 발광셀들을 갖는 발광 소자 및 그것을 제조하는 방법 |
KR10-2008-0132750 | 2008-12-24 |
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JP2010153814A JP2010153814A (ja) | 2010-07-08 |
JP2010153814A5 JP2010153814A5 (ja) | 2012-12-06 |
JP5624747B2 true JP5624747B2 (ja) | 2014-11-12 |
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JP2009258616A Active JP5624747B2 (ja) | 2008-12-24 | 2009-11-12 | 複数の発光セルを有する発光素子及びその製造方法 |
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US (1) | US8232571B2 (ja) |
JP (1) | JP5624747B2 (ja) |
KR (1) | KR101017395B1 (ja) |
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KR20100076083A (ko) | 2008-12-17 | 2010-07-06 | 서울반도체 주식회사 | 복수개의 발광셀들을 갖는 발광 다이오드 및 그것을 제조하는 방법 |
KR101533817B1 (ko) | 2008-12-31 | 2015-07-09 | 서울바이오시스 주식회사 | 복수개의 비극성 발광셀들을 갖는 발광 소자 및 그것을 제조하는 방법 |
KR101557362B1 (ko) | 2008-12-31 | 2015-10-08 | 서울바이오시스 주식회사 | 복수개의 비극성 발광셀들을 갖는 발광 소자 및 그것을 제조하는 방법 |
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