JP4770645B2 - 半導体レーザ素子の製造方法 - Google Patents
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- 239000004065 semiconductor Substances 0.000 title claims description 61
- 238000004519 manufacturing process Methods 0.000 title description 17
- 238000004140 cleaning Methods 0.000 claims description 37
- 238000005530 etching Methods 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 96
- 239000007789 gas Substances 0.000 description 14
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 238000005253 cladding Methods 0.000 description 5
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000001312 dry etching Methods 0.000 description 4
- 101100536546 Caenorhabditis elegans tcl-2 gene Proteins 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000000927 vapour-phase epitaxy Methods 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- 229910002704 AlGaN Inorganic materials 0.000 description 1
- 229910000980 Aluminium gallium arsenide Inorganic materials 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- 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
- H01S5/227—Buried mesa structure ; Striped active layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- 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
- H01S5/2054—Methods of obtaining the confinement
- H01S5/2081—Methods of obtaining the confinement using special etching techniques
- H01S5/2086—Methods of obtaining the confinement using special etching techniques lateral etch control, e.g. mask induced
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- 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
- H01S5/2201—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 in a specific crystallographic orientation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- 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
- H01S5/2206—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 III-V materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- 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
- H01S5/2222—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 having special electric properties
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- 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
- H01S5/227—Buried mesa structure ; Striped active layer
- H01S5/2275—Buried mesa structure ; Striped active layer mesa created by etching
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/34—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
- H01S5/343—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
- H01S5/34306—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 emitting light at a wavelength longer than 1000nm, e.g. InP based 1300 and 1500nm lasers
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- Optics & Photonics (AREA)
- Nanotechnology (AREA)
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- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Electromagnetism (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Crystallography & Structural Chemistry (AREA)
- Geometry (AREA)
- Semiconductor Lasers (AREA)
Description
以下、本発明の実施の形態1に係る半導体レーザ素子の製造方法について図面を用いて説明する。
以下、本発明の実施の形態2に係る半導体レーザ素子の製造方法について図面を用いて説明する。
12 p型InPクラッド層(半導体積層構造)
13 AlGaInAs下光閉込層(半導体積層構造)
14 AlGaInAs―MQW活性層(半導体積層構造)
15 n型AlGaInAs上光閉込層(半導体積層構造)
16 n型InPクラッド層(半導体積層構造)
17a p型InP第1埋込層(埋め込み層)
17b p型InP第2埋込層(埋め込み層)
18 n型InP電流ブロック層(埋め込み層)
19 p型InP埋込層(埋め込み層)
20 n型InP埋込層(埋め込み層)
Claims (2)
- 基板上に、活性層を持つ半導体積層構造を形成する工程と、
前記半導体積層構造をエッチングしてメサを形成する工程と、
前記メサの側面の酸化層が強固なものに変化する臨界温度よりも低い温度において、エッチング効果のあるガスにより前記メサの側面を清浄化させる第1清浄化工程と、
前記第1清浄化工程の後に、前記臨界温度よりも高い温度において、エッチング効果のあるガスにより前記メサの側面を清浄化させる第2清浄化工程と、
前記メサの側面を清浄化させた後に、前記メサの側面を覆うように埋め込み層を形成する工程とを有することを特徴とする半導体レーザ素子の製造方法。 - 基板上に、Alを含む半導体材料からなる活性層を持つ半導体積層構造を形成する工程と、
前記半導体積層構造をエッチングしてメサを形成する工程と、
450℃より低い温度において、エッチング効果のあるガスにより前記メサの側面を清浄化させる第1清浄化工程と、
前記第1清浄化工程の後に、450℃より高い温度において、エッチング効果のあるガスにより前記メサの側面を清浄化させる第2清浄化工程と、
前記メサの側面を清浄化させた後に、前記メサの側面を覆うように埋め込み層を形成する工程とを有することを特徴とする半導体レーザ素子の製造方法。
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JP2006230856A JP4770645B2 (ja) | 2006-08-28 | 2006-08-28 | 半導体レーザ素子の製造方法 |
US11/624,722 US7550304B2 (en) | 2006-08-28 | 2007-01-19 | Method for manufacturing semiconductor laser element |
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JP2006230856A JP4770645B2 (ja) | 2006-08-28 | 2006-08-28 | 半導体レーザ素子の製造方法 |
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JP2008053630A JP2008053630A (ja) | 2008-03-06 |
JP4770645B2 true JP4770645B2 (ja) | 2011-09-14 |
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Cited By (1)
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JP2009049201A (ja) * | 2007-08-20 | 2009-03-05 | Mitsubishi Electric Corp | 半導体レーザ素子の製造方法 |
Families Citing this family (4)
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JP5067281B2 (ja) * | 2008-06-27 | 2012-11-07 | 三菱電機株式会社 | 光半導体素子の製造方法 |
JP2012002929A (ja) * | 2010-06-15 | 2012-01-05 | Opnext Japan Inc | 半導体光素子の製造方法、レーザモジュール、光伝送装置 |
JP5935472B2 (ja) * | 2012-04-16 | 2016-06-15 | 三菱電機株式会社 | 半導体デバイスの製造方法 |
WO2020261493A1 (ja) * | 2019-06-27 | 2020-12-30 | 三菱電機株式会社 | 光半導体装置の製造方法 |
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US4468850A (en) * | 1982-03-29 | 1984-09-04 | Massachusetts Institute Of Technology | GaInAsP/InP Double-heterostructure lasers |
JPH01214017A (ja) | 1988-02-22 | 1989-08-28 | Fujitsu Ltd | 分子線エピタキシアル成長方法及び装置 |
JPH0472687A (ja) | 1990-07-12 | 1992-03-06 | Sharp Corp | 光半導体装置の製造方法 |
JPH06232099A (ja) | 1992-09-10 | 1994-08-19 | Mitsubishi Electric Corp | 半導体装置の製造方法,半導体装置の製造装置,半導体レーザの製造方法,量子細線構造の製造方法,及び結晶成長方法 |
JP3330218B2 (ja) * | 1994-03-25 | 2002-09-30 | 三菱電機株式会社 | 半導体装置の製造方法,及び半導体装置 |
JPH09289171A (ja) * | 1996-04-23 | 1997-11-04 | Oki Electric Ind Co Ltd | 再成長界面の表面処理方法 |
JPH10303503A (ja) * | 1997-04-24 | 1998-11-13 | Oki Electric Ind Co Ltd | 再成長界面の表面処理方法およびレーザダイオード |
JPH10335756A (ja) | 1997-06-05 | 1998-12-18 | Mitsubishi Electric Corp | 半導体レーザの製造方法 |
JPH11261100A (ja) * | 1998-03-09 | 1999-09-24 | Mitsubishi Electric Corp | 光半導体装置の製造方法 |
US6777257B2 (en) * | 2002-05-17 | 2004-08-17 | Shin-Etsu Handotai Co., Ltd. | Method of fabricating a light emitting device and light emitting device |
JP4164438B2 (ja) * | 2003-11-12 | 2008-10-15 | 株式会社日立製作所 | 半導体光素子の製造方法 |
JP4853008B2 (ja) * | 2005-12-14 | 2012-01-11 | 住友電気工業株式会社 | 半導体光素子を作製する方法 |
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JP2009049201A (ja) * | 2007-08-20 | 2009-03-05 | Mitsubishi Electric Corp | 半導体レーザ素子の製造方法 |
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JP2008053630A (ja) | 2008-03-06 |
US7550304B2 (en) | 2009-06-23 |
US20080050850A1 (en) | 2008-02-28 |
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