JP4954039B2 - 半導体装置の製造方法 - Google Patents
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- H01S5/34333—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser with a well layer based on Ga(In)N or Ga(In)P, e.g. blue laser
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- H01S5/22—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure
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- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier 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 with at least one potential-jump barrier or surface barrier 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 system
- H01L33/32—Materials of the light emitting region containing only elements of group III and group V of the periodic system containing nitrogen
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- H01L33/36—Semiconductor devices with at least one potential-jump barrier or surface barrier 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
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- H01S5/00—Semiconductor lasers
- H01S5/20—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers
- H01S5/22—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure
- H01S5/2205—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure comprising special burying or current confinement layers
- H01S5/2214—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure comprising special burying or current confinement layers based on oxides or nitrides
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- H01S5/00—Semiconductor lasers
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/305—Structure or shape of the active region; Materials used for the active region characterised by the doping materials used in the laser structure
- H01S5/3054—Structure or shape of the active region; Materials used for the active region characterised by the doping materials used in the laser structure p-doping
- H01S5/3063—Structure or shape of the active region; Materials used for the active region characterised by the doping materials used in the laser structure p-doping using Mg
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Description
図1〜図6はこの発明の実施の形態1であるGaN系の半導体装置(半導体レーザダイオード)の製造方法を示す断面図である。以下、これらの図を参照して、実施の形態1の半導体装置の製造方法における製造工程を説明する。
図7はこの発明の実施の形態2であるGaN系の半導体装置(半導体レーザダイオード)の製造方法の一部を示す断面図である。以下、図7を参照して、実施の形態2の半導体装置の製造方法における製造工程を説明する。
図8はこの発明の実施の形態3であるGaN系の半導体装置(半導体レーザダイオード)の製造方法の一部を示す断面図である。以下、図8を参照して、実施の形態3の半導体装置の製造方法における製造工程を説明する。
上述した実施の形態では、GaN系の半導体装置の一例として半導体レーザダイオードをとりあげ、そのp型GaNコンタクト層7上に形成される酸化膜9(金属化合物19,積層酸化構造20)について説明したが、p型層へのコンタクトを有する素子であれば、同様に半導体装置(素子)の長期安定動作を可能にすることができる。半導体レーザダイオード以外に例えばジナーダイオード、なだれ現象を利用したインパッドダイオード等がある。
Claims (7)
- (a) 基板上に窒化ガリウム系の半導体構造を形成するステップを備え、前記半導体構造は少なくともp型の窒化ガリウム系のコンタクト層を最上部に有し、
(b) 前記コンタクト層を含む前記半導体構造の上層部を選択的に除去するステップをさらに備え、前記ステップ(b) 実行後の前記半導体構造は、除去されずに残存した前記コンタクト層を含むリッジ部もしくはメサ部と前記コンタクト層が除去されたリッジ部外領域もしくはメサ部外領域とを有し、
(c) 前記リッジ部もしくは前記メサ部の側面及び前記リッジ部外領域上もしくは前記メサ部外領域上に絶縁膜を形成するステップと、
(d) 前記リッジ部もしくは前記メサ部の表面上に酸化物を形成するステップと、
(e) 前記酸化物及び前記絶縁膜上を含む全面に金属電極を形成するステップとをさらに備え、
前記ステップ(e) は、
(e-1) 前記酸化物上にPdと高融点金属からなる前記金属電極を形成するステップと、
(e-2) 前記ステップ(e-1) 後に実行され、酸素以外のガスを用いて熱処理するステップとを含む、
半導体装置の製造方法。 - 請求項1記載の半導体装置の製造方法であって、
前記ステップ(d) は、
(d-1) 酸素を含んだガスあるいはその活性種を前記リッジ部もしくは前記メサ部の前記コンタクト層に供給し、前記コンタクト層を酸化することにより酸化膜を形成するステップを含み、
前記酸化物は前記酸化膜を含む、
半導体装置の製造方法。 - 請求項2記載の半導体装置の製造方法であって、
前記ステップ(d) は、
(d-2) 少なくとも金属及び酸素を含んだ金属化合物を前記酸化物上に形成するステップを含み、
前記酸化物は前記酸化膜と前記金属化合物からなる積層酸化構造を含む、
半導体装置の製造方法。 - 請求項1記載の半導体装置の製造方法であって、
前記ステップ(d) は、
(d-1) 少なくとも金属及び酸素を含んだ金属化合物を前記コンタクト層上に形成するステップを含み、
前記酸化物は前記金属化合物を含む、
半導体装置の製造方法。 - 請求項2あるいは請求項3記載の半導体装置の製造方法であって、
前記酸素を含んだガスは、O2、O3、NO、N2O、及びNO2のうち、少なくともいずれかのガスを含む、
半導体装置の製造方法。 - 請求項3あるいは請求項4記載の半導体装置の製造方法であって、
前記金属化合物は、GaO、RuO、PdO、GaON、RuON、及びPdONのうち、少なくともいずれかを含む、
半導体装置の製造方法。 - 請求項1ないし請求項6のうち、いずれか1項に記載の半導体装置の製造方法であって、
前記高融点金属は、Ta、Cu及びWのうち少なくともいずれかを含む、
半導体装置の製造方法。
Priority Applications (4)
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JP2007308541A JP4954039B2 (ja) | 2007-11-29 | 2007-11-29 | 半導体装置の製造方法 |
TW097141337A TWI401821B (zh) | 2007-11-29 | 2008-10-28 | Semiconductor device manufacturing method |
US12/323,634 US7678597B2 (en) | 2007-11-29 | 2008-11-26 | Method of manufacturing semiconductor device including gallium-nitride semiconductor structure and a palladium contact |
CN2008101823833A CN101447645B (zh) | 2007-11-29 | 2008-11-28 | 半导体装置的制造方法 |
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JP2007308541A JP4954039B2 (ja) | 2007-11-29 | 2007-11-29 | 半導体装置の製造方法 |
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JP2009135181A5 JP2009135181A5 (ja) | 2010-11-04 |
JP4954039B2 true JP4954039B2 (ja) | 2012-06-13 |
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JP2009129943A (ja) * | 2007-11-20 | 2009-06-11 | Mitsubishi Electric Corp | 窒化物半導体装置とその製造方法 |
GB2473194A (en) * | 2009-09-02 | 2011-03-09 | 1E Ltd | Monitoring the performance of a computer based on the value of a net useful activity metric |
KR100999747B1 (ko) * | 2010-02-10 | 2010-12-08 | 엘지이노텍 주식회사 | 발광 소자, 발광 소자 제조방법 및 발광 소자 패키지 |
KR20120039412A (ko) * | 2010-10-15 | 2012-04-25 | 엘지이노텍 주식회사 | 발광 소자, 발광 소자 제조방법, 발광 소자 패키지 및 조명 시스템 |
KR101892567B1 (ko) | 2012-02-24 | 2018-08-28 | 삼성전자 주식회사 | 단말기에서 콘텐츠 이동 방법 및 장치 |
US9178106B2 (en) * | 2012-10-26 | 2015-11-03 | Glo Ab | Nanowire sized opto-electronic structure and method for modifying selected portions of same |
CN116581151B (zh) * | 2023-07-13 | 2023-10-17 | 湖北九峰山实验室 | 一种低开启电压氧化镓肖特基二极管及其制备方法 |
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JP3344257B2 (ja) * | 1997-01-17 | 2002-11-11 | 豊田合成株式会社 | 窒化ガリウム系化合物半導体及び素子の製造方法 |
US6291840B1 (en) * | 1996-11-29 | 2001-09-18 | Toyoda Gosei Co., Ltd. | GaN related compound semiconductor light-emitting device |
JP3457511B2 (ja) * | 1997-07-30 | 2003-10-20 | 株式会社東芝 | 半導体装置及びその製造方法 |
JP4166885B2 (ja) * | 1998-05-18 | 2008-10-15 | 富士通株式会社 | 光半導体装置およびその製造方法 |
JP2000077786A (ja) * | 1998-08-28 | 2000-03-14 | Toshiba Corp | 半導体装置及びその製造方法 |
US7507629B2 (en) * | 2004-09-10 | 2009-03-24 | Gerald Lucovsky | Semiconductor devices having an interfacial dielectric layer and related methods |
TWI291232B (en) * | 2006-01-03 | 2007-12-11 | Univ Nat Chiao Tung | Copper metalized ohmic contact electrode of compound semiconductor device |
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CN101447645A (zh) | 2009-06-03 |
US20090142871A1 (en) | 2009-06-04 |
US7678597B2 (en) | 2010-03-16 |
TW200929622A (en) | 2009-07-01 |
JP2009135181A (ja) | 2009-06-18 |
TWI401821B (zh) | 2013-07-11 |
CN101447645B (zh) | 2011-05-18 |
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