JP5816047B2 - P型窒化物発光デバイス用の極薄オーミックコンタクトおよび形成方法 - Google Patents
P型窒化物発光デバイス用の極薄オーミックコンタクトおよび形成方法 Download PDFInfo
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- JP5816047B2 JP5816047B2 JP2011227831A JP2011227831A JP5816047B2 JP 5816047 B2 JP5816047 B2 JP 5816047B2 JP 2011227831 A JP2011227831 A JP 2011227831A JP 2011227831 A JP2011227831 A JP 2011227831A JP 5816047 B2 JP5816047 B2 JP 5816047B2
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- 150000004767 nitrides Chemical class 0.000 title claims description 41
- 238000000034 method Methods 0.000 title description 20
- 229910052751 metal Inorganic materials 0.000 claims description 139
- 239000002184 metal Substances 0.000 claims description 139
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 51
- 239000000758 substrate Substances 0.000 claims description 44
- 229910052697 platinum Inorganic materials 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 13
- 239000010931 gold Substances 0.000 claims description 13
- 230000007480 spreading Effects 0.000 claims description 12
- 238000003892 spreading Methods 0.000 claims description 12
- 238000004458 analytical method Methods 0.000 claims description 11
- 229910052737 gold Inorganic materials 0.000 claims description 11
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 10
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 10
- 238000002834 transmittance Methods 0.000 claims description 9
- 239000004065 semiconductor Substances 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 230000031700 light absorption Effects 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910001922 gold oxide Inorganic materials 0.000 claims 2
- 239000010410 layer Substances 0.000 description 112
- 239000010408 film Substances 0.000 description 80
- 238000000151 deposition Methods 0.000 description 41
- 230000008021 deposition Effects 0.000 description 35
- 230000005540 biological transmission Effects 0.000 description 26
- 239000011521 glass Substances 0.000 description 26
- 229910002601 GaN Inorganic materials 0.000 description 25
- 238000012795 verification Methods 0.000 description 22
- 238000012544 monitoring process Methods 0.000 description 11
- 238000012360 testing method Methods 0.000 description 11
- 238000000851 scanning transmission electron micrograph Methods 0.000 description 9
- 229910010271 silicon carbide Inorganic materials 0.000 description 9
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 9
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 8
- 238000012790 confirmation Methods 0.000 description 7
- 238000001465 metallisation Methods 0.000 description 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 6
- 229910052594 sapphire Inorganic materials 0.000 description 6
- 239000010980 sapphire Substances 0.000 description 6
- 229910052719 titanium Inorganic materials 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- 235000012431 wafers Nutrition 0.000 description 6
- 238000005137 deposition process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 238000010894 electron beam technology Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000011787 zinc oxide Substances 0.000 description 4
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 3
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 3
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 229910003445 palladium oxide Inorganic materials 0.000 description 3
- JQPTYAILLJKUCY-UHFFFAOYSA-N palladium(ii) oxide Chemical compound [O-2].[Pd+2] JQPTYAILLJKUCY-UHFFFAOYSA-N 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- 229910052703 rhodium Inorganic materials 0.000 description 3
- 239000010948 rhodium Substances 0.000 description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910003465 moissanite Inorganic materials 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005211 surface analysis Methods 0.000 description 2
- 229910002704 AlGaN Inorganic materials 0.000 description 1
- 229910000980 Aluminium gallium arsenide Inorganic materials 0.000 description 1
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005566 electron beam evaporation Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011065 in-situ storage Methods 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
- 239000000155 melt Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000000427 thin-film deposition Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- VLCQZHSMCYCDJL-UHFFFAOYSA-N tribenuron methyl Chemical compound COC(=O)C1=CC=CC=C1S(=O)(=O)NC(=O)N(C)C1=NC(C)=NC(OC)=N1 VLCQZHSMCYCDJL-UHFFFAOYSA-N 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- H01L33/40—Materials therefor
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Description
いくつのデバイスでは、通常p型層を通過してデバイスを出た光が反射されてデバイスに戻って基板を通して取り出されるように、露出されたp型層を覆って反射金属層を形成することが望ましいことがある。しかし、アルミニウムおよび銀のような高反射金属は、p型窒化物材料に対して良好なオーミックコンタクトを形成しない。したがって、オーミックコンタクトは、一般に、p型窒化物層と反射材の間に設けられる。オーミックコンタクトでの吸収を減少させることは、相変わらずそのようなデバイスの問題である。
さらに、図に示された様々な層および領域は模式的に示されている。また当業者は理解するように、本発明は半導体ウェーハおよびダイシングされたチップに関して説明されているが、そのようなチップは、任意の大きさにダイシングされる可能性がある。したがって、本発明は、添付の図に示された相対的な大きさおよび間隔に限定されない。その上、層の厚さおよび特徴の大きさのような図面の特定の特徴は、図面をはっきりさせ説明を容易にするために誇張された寸法で示されている。
ある。センサ66は、センサ制御装置68(これは、実際の応用ではe−ビーム制御装置62と同じである可能性がある)によって制御される。堆積された膜厚が所定の閾値に達したことをセンサ66が検出したとき、監視システムは、e−ビーム制御装置62に信号出力を供給して、e−ビーム制御装置が堆積プロセスを停止させるようにすることができる。したがって、本発明の実施形態に従ったシステム50は、堆積プロセスの自動閉ループ制御を行うことができる。
示す。
Claims (23)
- p型窒化物層と、
前記p型窒化物層の上の不連続な金属オーミックコンタクトであって、5Å未満の平均厚さを備える不連続な金属オーミックコンタクトと
を備えることを特徴とする半導体ベースの発光デバイス(LED)。 - 前記不連続な金属オーミックコンタクトは、3Å未満の平均厚さを備え、前記不連続な金属オーミックコンタクトのオージェ解析によって測定される前記p型窒化物層の30%未満を覆っていることを特徴とする請求項1に記載のLED。
- 前記不連続な金属オーミックコンタクトは、ニッケルを備えることを特徴とする請求項1に記載のLED。
- 前記不連続な金属オーミックコンタクトは、ニッケル/金、酸化ニッケル/金、あるいは酸化ニッケル/白金を備えることを特徴とする請求項3に記載のLED。
- 前記不連続な金属オーミックコンタクトは、前記p型窒化物層の直ぐ上にあることを特徴とする請求項1に記載のLED。
- 前記不連続な金属オーミックコンタクトの直ぐ上のボンディングパッドをさらに備えることを特徴とする請求項1に記載のLED。
- 前記不連続な金属オーミックコンタクトは、前記不連続な金属オーミックコンタクトのオージェ解析によって測定される前記p型窒化物層の47%未満を覆っていることを特徴とする請求項1に記載のLED。
- 前記不連続な金属オーミックコンタクトの正規化透過率は、350nmの測定波長で少なくとも92%を備えることを特徴とする請求項7に記載のLED。
- 前記不連続な金属オーミックコンタクトは、前記p型窒化物層の一部を覆い、前記p型窒化物層の残りの部分は、前記不連続な金属オーミックコンタクトによって覆われていないことを特徴とする請求項7に記載のLED。
- 前記p型窒化物層は、n型半導体基板の上のn型GaNエピ層の上のp型GaNエピ層を備え、
ボンディングパッドが前記不連続な金属オーミックコンタクトの直ぐ上にあることを特徴とする請求項1に記載のLED。 - 前記不連続な金属オーミックコンタクトを横切って延びる、前記ボンディングパッド上の電流拡散指状部をさらに備えることを特徴とする請求項10に記載のLED。
- 前記電流拡散指状部は、直線の指状部または曲がった指状部を備えることを特徴とする請求項11に記載のLED。
- 前記不連続な金属オーミックコンタクトは、前記p型窒化物層の50%未満を覆っていることを特徴とする請求項1に記載のLED。
- 基板の上のn型GaNエピ層と、
前記n型GaNエピ層の上のp型GaNエピ層と、
前記p型GaNエピ層の上の金属オーミックコンタクトであって、5Å未満の平均厚さを備える金属オーミックコンタクトと、
前記金属オーミックコンタクトの上の反射材と、
前記反射材の上の金属スタックと
を備えることを特徴とする半導体ベースのフリップチップ型発光デバイス(LED)。 - 前記金属オーミックコンタクトは、不連続な金属オーミックコンタクトのオージェ解析によって測定される前記p型GaNエピ層の50%未満を覆っている不連続な金属オーミックコンタクトを備えることを特徴とする請求項14に記載のLED。
- 前記金属オーミックコンタクトは、ニッケル、ニッケル/金、酸化ニッケル/金、あるいは酸化ニッケル/白金を備えることを特徴とする請求項14に記載のLED。
- 前記不連続な金属オーミックコンタクトは、3Å未満の平均厚さを備え、前記不連続な金属オーミックコンタクトのオージェ解析によって測定される前記p型GaNエピ層の30%未満を覆っていることを特徴とする請求項15に記載のLED。
- 前記不連続な金属オーミックコンタクトは、前記p型GaNエピ層の28%未満を覆っていることを特徴とする請求項17に記載のLED。
- 前記不連続な金属オーミックコンタクトは、1Åの平均厚さを備えることを特徴とする請求項15に記載のLED。
- 前記反射材は、300Åを超える厚さを備えることを特徴とする請求項14に記載のLED。
- 前記反射材は、アルミニウムおよび/または銀を備えることを特徴とする請求項19に記載のLED。
- 前記不連続な金属オーミックコンタクトは、光の吸収を減少させる金属オーミックコンタクトであることを特徴とする請求項1に記載のLED。
- 前記不連続な金属オーミックコンタクトは、光の吸収を減少させる金属オーミックコンタクトであることを特徴とする請求項14に記載のLED。
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Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6958497B2 (en) * | 2001-05-30 | 2005-10-25 | Cree, Inc. | Group III nitride based light emitting diode structures with a quantum well and superlattice, group III nitride based quantum well structures and group III nitride based superlattice structures |
CN100388517C (zh) * | 2004-07-08 | 2008-05-14 | 夏普株式会社 | 氮化物系化合物半导体发光元件及其制造方法 |
JP2006073619A (ja) * | 2004-08-31 | 2006-03-16 | Sharp Corp | 窒化物系化合物半導体発光素子 |
JP4371956B2 (ja) * | 2004-09-02 | 2009-11-25 | シャープ株式会社 | 窒化物系化合物半導体発光素子およびその製造方法 |
JP4767035B2 (ja) * | 2005-04-12 | 2011-09-07 | シャープ株式会社 | 窒化物系半導体発光素子およびその製造方法 |
JP4101823B2 (ja) | 2005-06-13 | 2008-06-18 | 株式会社東芝 | 半導体素子、電極形成方法及び半導体素子の製造方法 |
US7928451B2 (en) * | 2006-08-18 | 2011-04-19 | Sensor Electronic Technology, Inc. | Shaped contact layer for light emitting heterostructure |
JP2008091862A (ja) * | 2006-09-08 | 2008-04-17 | Sharp Corp | 窒化物半導体発光素子および窒化物半導体発光素子の製造方法 |
JP2008117824A (ja) * | 2006-11-01 | 2008-05-22 | Sharp Corp | 窒化物系半導体素子の製造方法 |
US20100051970A1 (en) * | 2006-11-17 | 2010-03-04 | Ouderkirk Andrew J | Planarized led with optical extractor |
WO2008064070A1 (en) * | 2006-11-17 | 2008-05-29 | 3M Innovative Properties Company | Optical bonding composition for led light source |
CN101536202A (zh) * | 2006-11-17 | 2009-09-16 | 3M创新有限公司 | 高效发光制品以及形成该高效发光制品的方法 |
JP4561732B2 (ja) * | 2006-11-20 | 2010-10-13 | トヨタ自動車株式会社 | 移動体位置測位装置 |
WO2008063884A1 (en) * | 2006-11-20 | 2008-05-29 | 3M Innovative Properties Company | Optical bonding composition for led light source |
WO2009147822A1 (ja) * | 2008-06-06 | 2009-12-10 | パナソニック株式会社 | 発光素子 |
US20100327300A1 (en) | 2009-06-25 | 2010-12-30 | Koninklijke Philips Electronics N.V. | Contact for a semiconductor light emitting device |
US8536615B1 (en) | 2009-12-16 | 2013-09-17 | Cree, Inc. | Semiconductor device structures with modulated and delta doping and related methods |
US8604461B2 (en) * | 2009-12-16 | 2013-12-10 | Cree, Inc. | Semiconductor device structures with modulated doping and related methods |
US8575592B2 (en) * | 2010-02-03 | 2013-11-05 | Cree, Inc. | Group III nitride based light emitting diode structures with multiple quantum well structures having varying well thicknesses |
TW201312763A (zh) * | 2011-09-09 | 2013-03-16 | Hon Hai Prec Ind Co Ltd | 晶片封裝件 |
KR101908656B1 (ko) * | 2012-04-09 | 2018-10-16 | 엘지이노텍 주식회사 | 발광 소자 패키지 |
EP2973664B1 (en) * | 2013-03-15 | 2020-10-14 | Crystal Is, Inc. | Ultraviolet light-emitting device and method of forming a contact to an ultraviolet light-emitting device |
JP2014183090A (ja) * | 2013-03-18 | 2014-09-29 | Oki Electric Ind Co Ltd | 透明電極構造、窒化物半導体発光ダイオード、及び透明電極成膜方法 |
Family Cites Families (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02124406A (ja) | 1988-11-01 | 1990-05-11 | Mitsubishi Electric Corp | 半導体製造装置 |
US4918497A (en) * | 1988-12-14 | 1990-04-17 | Cree Research, Inc. | Blue light emitting diode formed in silicon carbide |
US5027168A (en) * | 1988-12-14 | 1991-06-25 | Cree Research, Inc. | Blue light emitting diode formed in silicon carbide |
US4966862A (en) * | 1989-08-28 | 1990-10-30 | Cree Research, Inc. | Method of production of light emitting diodes |
US5210051A (en) * | 1990-03-27 | 1993-05-11 | Cree Research, Inc. | High efficiency light emitting diodes from bipolar gallium nitride |
JP2987998B2 (ja) * | 1991-05-21 | 1999-12-06 | 日本電気株式会社 | 減圧cvd装置 |
JPH0580203A (ja) | 1991-09-19 | 1993-04-02 | Hitachi Ltd | プラスチツク製光学部品のハードコート膜 |
JP3404765B2 (ja) | 1992-05-27 | 2003-05-12 | 岩崎電気株式会社 | 傾斜機能膜付メタルハライドランプ及びその照明器具 |
JPH06268253A (ja) | 1993-03-10 | 1994-09-22 | Hitachi Cable Ltd | 電極付エピタキシャルウェハの製造方法および電極付エピタキシャルウェハの評価方法 |
DE69425186T3 (de) | 1993-04-28 | 2005-04-14 | Nichia Corp., Anan | Halbleitervorrichtung aus einer galliumnitridartigen III-V-Halbleiterverbindung und Verfahren zu ihrer Herstellung |
US5416342A (en) * | 1993-06-23 | 1995-05-16 | Cree Research, Inc. | Blue light-emitting diode with high external quantum efficiency |
US5338944A (en) * | 1993-09-22 | 1994-08-16 | Cree Research, Inc. | Blue light-emitting diode with degenerate junction structure |
US5393993A (en) * | 1993-12-13 | 1995-02-28 | Cree Research, Inc. | Buffer structure between silicon carbide and gallium nitride and resulting semiconductor devices |
US5604135A (en) * | 1994-08-12 | 1997-02-18 | Cree Research, Inc. | Method of forming green light emitting diode in silicon carbide |
US5523589A (en) * | 1994-09-20 | 1996-06-04 | Cree Research, Inc. | Vertical geometry light emitting diode with group III nitride active layer and extended lifetime |
US5631190A (en) * | 1994-10-07 | 1997-05-20 | Cree Research, Inc. | Method for producing high efficiency light-emitting diodes and resulting diode structures |
US5739554A (en) * | 1995-05-08 | 1998-04-14 | Cree Research, Inc. | Double heterojunction light emitting diode with gallium nitride active layer |
JPH08335717A (ja) | 1995-06-06 | 1996-12-17 | Rohm Co Ltd | 半導体発光素子 |
JP3804698B2 (ja) | 1996-02-16 | 2006-08-02 | 三井化学株式会社 | 積層体及びその製造方法 |
TW369730B (en) * | 1997-03-19 | 1999-09-11 | Sharp Kk | Semiconductor luminescence element |
US6268618B1 (en) * | 1997-05-08 | 2001-07-31 | Showa Denko K.K. | Electrode for light-emitting semiconductor devices and method of producing the electrode |
US6201262B1 (en) * | 1997-10-07 | 2001-03-13 | Cree, Inc. | Group III nitride photonic devices on silicon carbide substrates with conductive buffer interlay structure |
JP3736181B2 (ja) | 1998-05-13 | 2006-01-18 | 豊田合成株式会社 | Iii族窒化物系化合物半導体発光素子 |
JP2004363621A (ja) | 1998-05-13 | 2004-12-24 | Toyoda Gosei Co Ltd | Iii族窒化物系化合物半導体発光素子 |
JP2000252230A (ja) * | 1998-12-28 | 2000-09-14 | Sanyo Electric Co Ltd | 半導体素子およびその製造方法 |
JP2000244010A (ja) | 1999-02-19 | 2000-09-08 | Matsushita Electric Ind Co Ltd | 窒化ガリウム系化合物半導体発光素子の製造方法 |
JP3705016B2 (ja) * | 1999-06-28 | 2005-10-12 | 豊田合成株式会社 | 透光性電極用膜及びiii族窒化物系化合物半導体素子 |
JP2001196631A (ja) | 1999-10-29 | 2001-07-19 | Nichia Chem Ind Ltd | 窒化ガリウム系化合物半導体素子とその製造方法 |
TWI292227B (en) | 2000-05-26 | 2008-01-01 | Osram Opto Semiconductors Gmbh | Light-emitting-dioed-chip with a light-emitting-epitaxy-layer-series based on gan |
JP2001339101A (ja) * | 2000-05-26 | 2001-12-07 | Sharp Corp | 窒化ガリウム系化合物半導体素子 |
JP4024994B2 (ja) * | 2000-06-30 | 2007-12-19 | 株式会社東芝 | 半導体発光素子 |
JP2002170988A (ja) | 2000-12-01 | 2002-06-14 | Sharp Corp | 窒化物半導体発光素子とその発光装置 |
KR100391373B1 (ko) * | 2000-10-13 | 2003-07-16 | 광주과학기술원 | 반사막이 삽입된 p형 전극구조를 가지는 질화물계 발광다이오드 및 그 제조방법 |
JP3639789B2 (ja) | 2001-01-31 | 2005-04-20 | シャープ株式会社 | 窒化物系半導体発光素子 |
CN1368764A (zh) * | 2001-01-31 | 2002-09-11 | 广镓光电股份有限公司 | 一种高亮度蓝光发光晶粒的结构 |
US6791119B2 (en) * | 2001-02-01 | 2004-09-14 | Cree, Inc. | Light emitting diodes including modifications for light extraction |
US6794684B2 (en) | 2001-02-01 | 2004-09-21 | Cree, Inc. | Reflective ohmic contacts for silicon carbide including a layer consisting essentially of nickel, methods of fabricating same, and light emitting devices including the same |
US20020117672A1 (en) * | 2001-02-23 | 2002-08-29 | Ming-Sung Chu | High-brightness blue-light emitting crystalline structure |
US6958497B2 (en) | 2001-05-30 | 2005-10-25 | Cree, Inc. | Group III nitride based light emitting diode structures with a quantum well and superlattice, group III nitride based quantum well structures and group III nitride based superlattice structures |
JP2002359396A (ja) | 2001-06-01 | 2002-12-13 | Stanley Electric Co Ltd | 半導体発光装置 |
EP2034530B1 (en) * | 2001-06-15 | 2015-01-21 | Cree, Inc. | GaN based LED formed on a SiC substrate |
US6740906B2 (en) * | 2001-07-23 | 2004-05-25 | Cree, Inc. | Light emitting diodes including modifications for submount bonding |
JP3998445B2 (ja) | 2001-08-31 | 2007-10-24 | 株式会社東芝 | 半導体装置の製造方法、半導体装置の製造装置、半導体装置の製造システム、および半導体製造装置のクリーニング方法 |
JP4046582B2 (ja) | 2001-09-17 | 2008-02-13 | 三洋電機株式会社 | 窒化物系半導体発光素子およびその形成方法 |
TW549767U (en) * | 2001-12-28 | 2003-08-21 | Veutron Corp | L-type reflection mirror set |
JP2004003732A (ja) | 2002-05-31 | 2004-01-08 | Mitsubishi Electric Building Techno Service Co Ltd | 冷凍・空調装置の遠隔監視システム及び遠隔監視方法 |
JP2004063732A (ja) * | 2002-07-29 | 2004-02-26 | Matsushita Electric Ind Co Ltd | 発光素子 |
KR100826424B1 (ko) | 2003-04-21 | 2008-04-29 | 삼성전기주식회사 | 반도체 발광 다이오드 및 그 제조방법 |
JP2005117020A (ja) * | 2003-09-16 | 2005-04-28 | Stanley Electric Co Ltd | 窒化ガリウム系化合物半導体素子とその製造方法 |
US7960746B2 (en) | 2004-01-06 | 2011-06-14 | Samsung Led Co., Ltd. | Low resistance electrode and compound semiconductor light emitting device including the same |
JP2005244207A (ja) * | 2004-01-30 | 2005-09-08 | Showa Denko Kk | 窒化ガリウム系化合物半導体発光素子 |
US7061026B2 (en) * | 2004-04-16 | 2006-06-13 | Arima Optoelectronics Corp. | High brightness gallium nitride-based light emitting diode with transparent conducting oxide spreading layer |
US20080283850A1 (en) * | 2004-06-24 | 2008-11-20 | Koji Kamei | Reflective Positive Electrode and Gallium Nitride-Based Compound Semiconductor Light-Emitting Device Using the Same |
CN100557829C (zh) | 2004-07-27 | 2009-11-04 | 克里公司 | 用于p型氮化物发光装置的超薄欧姆接触及其形成方法 |
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CN102324455A (zh) | 2012-01-18 |
CN102324452B (zh) | 2015-11-25 |
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US8089090B2 (en) | 2012-01-03 |
KR20070042976A (ko) | 2007-04-24 |
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