JPH04372189A - Manufacture of semiconductor laser - Google Patents

Manufacture of semiconductor laser

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Publication number
JPH04372189A
JPH04372189A JP17738991A JP17738991A JPH04372189A JP H04372189 A JPH04372189 A JP H04372189A JP 17738991 A JP17738991 A JP 17738991A JP 17738991 A JP17738991 A JP 17738991A JP H04372189 A JPH04372189 A JP H04372189A
Authority
JP
Japan
Prior art keywords
layer
gaas
semiconductor laser
current confinement
present
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP17738991A
Other languages
Japanese (ja)
Other versions
JP2911260B2 (en
Inventor
Hiroyoshi Hamada
弘喜 浜田
Ryoji Hiroyama
良治 廣山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP17738991A priority Critical patent/JP2911260B2/en
Publication of JPH04372189A publication Critical patent/JPH04372189A/en
Application granted granted Critical
Publication of JP2911260B2 publication Critical patent/JP2911260B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To manufacture an AlGaInP group semiconductor laser, the deterioration of the characteristics of an active layer of which can be prevented and which has low threshold currents, high reliability and long life, easily. CONSTITUTION:When an AlGaInP group material is crystal-grown on an n-GaAs substrate 1 and a semiconductor laser is manufactured, the growth temperatures of an n-GaAs current constriction layer 8 and a p-GaAs cap layer 9 are elevated to 530-580 deg.C.

Description

【発明の詳細な説明】[Detailed description of the invention]

【0001】0001

【産業上の利用分野】本発明は、内部電流狭窄型のAl
GaInP 系半導体レーザを製造する方法に関し、特
に、その内部電流狭窄層とキャップ層との製造方法に関
するものである。
[Industrial Application Field] The present invention relates to an internal current confinement type Al
The present invention relates to a method of manufacturing a GaInP semiconductor laser, and particularly to a method of manufacturing an internal current confinement layer and a cap layer thereof.

【0002】0002

【従来の技術】AlGaInP は 0.6μm の発
振波長を有し、可視光半導体レーザの材料として広く用
いられている。 図1は、AlGaInP 系材料を主成分とした屈折率
導波型AlGaInP半導体レーザの構造を示す断面図
である。図中1は、(100) 面から〈011 〉方
向に5°オフしたn−GaAs基板を示す。基板1上に
は、n−GaInP バッファ層2(膜厚0.3μm)
, n−(Al0.65Ga0.35)0.5 In0
.5 P クラッド層3(膜厚 1.0μm),u−(
Al0.15Ga0.85)0.5 In0.5 P 
活性層4(膜厚0.07μm),p−(Al0.65G
a0.35)0.5 In0.5 P クラッド層5(
膜厚 0.2μm)がこの順に積層されている。クラッ
ド層5では、Znをドープしてp型としている。クラッ
ド層5の中央部(高さ1μm)はメサ状をなし、このメ
サ部上にp−GaInP コンタクト層6(膜厚 0.
1μm),p−GaAsコンタクト層7(膜厚 0.3
μm)がこの順に積層されている。また、メサ部を囲む
態様にて、クラッド層5上にn−GaAs電流狭窄層8
(膜厚 0.8μm)が形成されている。コンタクト層
7及び電流狭窄層8上には、p−GaAsキャップ層9
(膜厚 0.8μm)が形成されている。キャップ層9
の上面にはp側電極(Cr/Au)10が設けられ、基
板1の下面にはn側電極(Cr/Sn/Au)11が設
けられている。このような構成をなす半導体レーザは、
波長が630 〜640 nmである可視レーザ光を発
振する。
2. Description of the Related Art AlGaInP has an oscillation wavelength of 0.6 μm and is widely used as a material for visible light semiconductor lasers. FIG. 1 is a cross-sectional view showing the structure of an index-guided AlGaInP semiconductor laser whose main component is an AlGaInP-based material. In the figure, 1 indicates an n-GaAs substrate that is 5° off from the (100) plane in the <011> direction. On the substrate 1 is an n-GaInP buffer layer 2 (thickness: 0.3 μm).
, n-(Al0.65Ga0.35)0.5 In0
.. 5P cladding layer 3 (film thickness 1.0 μm), u-(
Al0.15Ga0.85)0.5 In0.5P
Active layer 4 (film thickness 0.07 μm), p-(Al0.65G
a0.35) 0.5 In0.5 P cladding layer 5 (
(film thickness: 0.2 μm) are laminated in this order. The cladding layer 5 is doped with Zn to make it p-type. The central part (height: 1 μm) of the cladding layer 5 has a mesa shape, and a p-GaInP contact layer 6 (thickness: 0.5 μm) is formed on this mesa part.
1 μm), p-GaAs contact layer 7 (film thickness 0.3
μm) are stacked in this order. Further, an n-GaAs current confinement layer 8 is provided on the cladding layer 5 in a manner surrounding the mesa portion.
(film thickness 0.8 μm) is formed. A p-GaAs cap layer 9 is formed on the contact layer 7 and the current confinement layer 8.
(film thickness 0.8 μm) is formed. Cap layer 9
A p-side electrode (Cr/Au) 10 is provided on the top surface of the substrate 1, and an n-side electrode (Cr/Sn/Au) 11 is provided on the bottom surface of the substrate 1. A semiconductor laser with such a configuration is
It emits visible laser light with a wavelength of 630 to 640 nm.

【0003】ここで、使用するGaAs基板の面方位に
ついて説明する。本発明と同一出願人による特開平2─
168690号公報には、(100)面から〈011 
〉方向に5°以上傾斜したGaAs基板を用いることに
より、基板上に結晶欠陥がないAlGaInP 結晶を
成長でき、製造される半導体レーザの発振しきい値電流
のばらつきを少なくできることが開示されている。また
、本発明と同一出願人による特開平2─260682号
公報には、AlGaInP の半導体層のバンドギャッ
プはGaAs基板の面方位に依存して変化し、(100
) 面から〈011 〉方向に5°以上傾斜したGaA
s基板を用いることにより、基板上に積層されるAlG
aInP 系半導体層のバンドギャップが広がり、Al
GaInP 系半導体レーザの短波長化を図って、発振
しきい値電流の増加を抑え得ることが開示されている。 以上により、AlGaInP 系半導体レーザを製造す
る場合に、(100)面から〈011 〉方向に5°以
上傾斜した(オフした)GaAs基板を使用することが
望ましい。
[0003] Here, the surface orientation of the GaAs substrate used will be explained. Unexamined Japanese Patent Publication No. 2003-201201 by the same applicant as the present invention
Publication No. 168690 states that from the (100) plane <011
It is disclosed that by using a GaAs substrate tilted by 5 degrees or more in the > direction, an AlGaInP crystal without crystal defects can be grown on the substrate, and variations in the oscillation threshold current of the manufactured semiconductor laser can be reduced. Further, in Japanese Patent Application Laid-Open No. 2-260682, filed by the same applicant as the present invention, it is disclosed that the bandgap of an AlGaInP semiconductor layer changes depending on the plane orientation of the GaAs substrate.
) GaA tilted by 5° or more in the <011> direction from the plane
By using the s-substrate, AlG layered on the substrate
The band gap of the aInP-based semiconductor layer widens, and the Al
It is disclosed that an increase in the oscillation threshold current can be suppressed by shortening the wavelength of a GaInP semiconductor laser. As described above, when manufacturing an AlGaInP semiconductor laser, it is desirable to use a GaAs substrate that is tilted (off) by 5 degrees or more in the <011> direction from the (100) plane.

【0004】0004

【発明が解決しようとする課題】ところで、上述したよ
うな構造を有する半導体レーザを製造する場合、図1に
おけるn−GaAs電流狭窄層8及びp−GaAsキャ
ップ層9は、ヘテロ結晶成長温度と同じ温度( 680
〜700 ℃)でGaAs層を成長させて形成している
。ところが、p型クラッド層5にドープされているZn
がアンドープの活性層4に拡散して、活性層4の特性が
劣化するという課題がある。
By the way, when manufacturing a semiconductor laser having the above-described structure, the n-GaAs current confinement layer 8 and the p-GaAs cap layer 9 in FIG. Temperature (680
It is formed by growing a GaAs layer at a temperature of ~700°C. However, the Zn doped in the p-type cladding layer 5
There is a problem that the active layer 4 is diffused into the undoped active layer 4 and the characteristics of the active layer 4 are deteriorated.

【0005】図2は、電流狭窄層,キャップ層の成長温
度と電流狭窄層,キャップ層成長後の活性層のPL(p
hotoluminescence)半値幅との関係を
示すグラフである。なお、基板としては(100) 面
から〈011 〉方向に5°オフしたn−GaAs基板
を使用している。図中Aは成長開始前を示し、成長温度
が上昇していくにつれて半値幅は広がることがわかる。 このことにより、クラッド層5から活性層4へのZn拡
散または活性層4中での欠陥の発生が起こっていること
がわかる。
FIG. 2 shows the growth temperature of the current confinement layer and the cap layer and the PL (p) of the active layer after the growth of the current confinement layer and the cap layer.
2 is a graph showing the relationship between photoluminescence and half width (photoluminescence). The substrate used is an n-GaAs substrate that is oriented 5° in the <011> direction from the (100) plane. In the figure, A indicates before the start of growth, and it can be seen that as the growth temperature increases, the half-width widens. This indicates that Zn diffusion from the cladding layer 5 to the active layer 4 or generation of defects in the active layer 4 occurs.

【0006】以上のことにより、従来のように、電流狭
窄層8及びキャップ層9をヘテロ結晶成長温度と同じ高
温にて成長させると、Znの拡散または活性層中の欠陥
の発生により、発光効率が低下し、発振しきい値が上昇
して、寿命が短くなるという問題がある。
As described above, when the current confinement layer 8 and the cap layer 9 are grown at the same high temperature as the heterocrystal growth temperature as in the conventional method, the luminous efficiency decreases due to the diffusion of Zn or the generation of defects in the active layer. There is a problem that the oscillation threshold value decreases, the oscillation threshold value increases, and the life span becomes short.

【0007】本発明はかかる事情に鑑みてなされたもの
であり、GaAs電流狭窄層及びGaAsキャップ層の
成長温度を530 〜580℃とすることにより、上述
したような問題を解決して、発振しきい値が低く、信頼
性が高いAlGaInP 系半導体レーザを製造できる
半導体レーザの製造方法を提供することを目的とする。
The present invention has been made in view of the above circumstances, and by setting the growth temperature of the GaAs current confinement layer and the GaAs cap layer to 530 to 580° C., the above-mentioned problems can be solved and oscillation can be achieved. It is an object of the present invention to provide a method for manufacturing a semiconductor laser that can manufacture an AlGaInP semiconductor laser with a low threshold and high reliability.

【0008】[0008]

【課題を解決するための手段】本発明に係る半導体レー
ザの製造方法は、(100) 面から〈011 〉方向
に5°以上傾斜したGaAs基板の主面に、AlGaI
nP 活性層とGaAs電流狭窄層とGaAsキャップ
層とを有するAlGaInP 系半導体レーザを、結晶
成長法を用いて製造する方法において、前記GaAs電
流狭窄層及びGaAsキャップ層の成長温度を530 
〜580 ℃とすることを特徴とする。
[Means for Solving the Problems] A method for manufacturing a semiconductor laser according to the present invention includes forming an AlGaI layer on the main surface of a GaAs substrate that is inclined by 5 degrees or more in the <011> direction from the (100) plane.
In a method for manufacturing an AlGaInP semiconductor laser having an nP active layer, a GaAs current confinement layer, and a GaAs cap layer using a crystal growth method, the growth temperature of the GaAs current confinement layer and the GaAs cap layer is set at 530° C.
It is characterized by a temperature of ~580°C.

【0009】[0009]

【作用】図2から、GaAs電流狭窄層及びGaAsキ
ャップ層の成長温度が580 ℃を超えると、活性層に
おけるPL半値幅が急激に広がってその特性が劣化する
ことがわかる。 一方、これらの成長温度が530℃以上である場合には
成長するGaAs層は単結晶となり、この温度未満では
多結晶となる。単結晶である方が、多結晶である場合に
比べて、電流狭窄層としての機能は高く、また熱伝導率
も高くなる。以上のような理由により、本発明では、5
30 〜580 ℃の温度での結晶成長によりGaAs
電流狭窄層及びGaAsキャップ層を形成する。
[Operation] From FIG. 2, it can be seen that when the growth temperature of the GaAs current confinement layer and the GaAs cap layer exceeds 580° C., the PL half-width in the active layer rapidly expands and its characteristics deteriorate. On the other hand, when the growth temperature is 530° C. or higher, the grown GaAs layer becomes a single crystal, and below this temperature, the GaAs layer grows polycrystalline. Single crystal has a higher function as a current confinement layer and has higher thermal conductivity than polycrystal. For the above reasons, in the present invention, 5
GaAs is grown by crystal growth at temperatures between 30 and 580 °C.
A current confinement layer and a GaAs cap layer are formed.

【0010】0010

【実施例】以下、本発明の実施例を説明する。本発明の
製造方法を用いて、前述した図1に示すような構造を有
するAlGaInP 系半導体レーザを製造する場合に
ついて説明する。
[Examples] Examples of the present invention will be described below. A case will be described in which the AlGaInP semiconductor laser having the structure shown in FIG. 1 is manufactured using the manufacturing method of the present invention.

【0011】まず、(100) 面から〈011 〉方
向に5°オフしたn−GaAs基板1上に、MOCVD
(Metalorganic Chemical Va
por Deposition) 法を用いて、温度を
680 〜700 ℃程度として、バッファ層2,クラ
ッド層3,活性層4,クラッド層5,コンタクト層6,
コンタクト層7となるn−GaInP 層, n−(A
l0.65Ga0.35)0.5 In0.5 P 層
,u−(Al0.15Ga0.85)0.5 In0.
5 P 層,p−(Al0.65Ga0.35)0.5
 In0.5 P 層, p−GaInP 層, p−
GaAs層をこの順に積層形成する。次に、所定幅の例
えばSiO2 層をp−GaAs層の中央部上に形成し
、このSiO2 層をマスクとして、p−GaAs層,
 p−GaInP 層の全部とp−(Al0.65Ga
0.35)0.5 In0.5 P 層の一部とをエッ
チング除去してメサ部を形成する。次に、MOCVD 
法を用いて、温度を530 〜580 ℃として、電流
狭窄層8となるn−GaAs層を積層形成した後、Si
O2 層を除去する。次いで、MOCVD 法を用いて
、温度を530 〜580 ℃として、キャップ層9と
なるp−GaAs層を積層形成する。最後に、p−Ga
As層の上面にCr, Auを、n−GaAs基板1の
下面にはCr,Sn, Auを蒸着形成し、これらを合
金化して、p側電極10, n側電極11を夫々形成す
る。
[0011] First, MOCVD was applied on an n-GaAs substrate 1 that was 5° off from the (100) plane in the
(Metalorganic Chemical Va.
The buffer layer 2, cladding layer 3, active layer 4, cladding layer 5, contact layer 6,
An n-GaInP layer, n-(A
l0.65Ga0.35)0.5 In0.5 P layer, u-(Al0.15Ga0.85)0.5 In0.
5 P layer, p-(Al0.65Ga0.35)0.5
In0.5 P layer, p-GaInP layer, p-
GaAs layers are stacked in this order. Next, for example, a SiO2 layer of a predetermined width is formed on the center of the p-GaAs layer, and using this SiO2 layer as a mask, the p-GaAs layer,
The entire p-GaInP layer and p-(Al0.65Ga
0.35) A part of the 0.5 In0.5 P layer is removed by etching to form a mesa portion. Next, MOCVD
After laminating an n-GaAs layer that will become the current confinement layer 8 at a temperature of 530 to 580° C. using a method, Si
Remove O2 layer. Next, a p-GaAs layer that will become the cap layer 9 is laminated using MOCVD at a temperature of 530 to 580°C. Finally, p-Ga
Cr and Au are deposited on the upper surface of the As layer, and Cr, Sn, and Au are deposited on the lower surface of the n-GaAs substrate 1, and these are alloyed to form a p-side electrode 10 and an n-side electrode 11, respectively.

【0012】上述した製造工程において、n−GaAs
層(電流狭窄層8)のn型ドーパントとしてはSeを用
いる。これは、図3から理解できるように、低温状態(
530 〜580 ℃)においてもSeは効率良くドー
ピングできるからである。電流狭窄層8を形成するまで
は、ダブルヘテロ結晶からのリンの脱離を防止するため
にPH3 を流す。ところが、低温状態(530 〜5
80 ℃)ではPH3 の分解効率が低くて、ダブルヘ
テロ結晶からのリンの脱離が容易に生じ、作製したダブ
ルヘテロ結晶が劣化する可能性がある。従って、本実施
例では、PH3 を予めクラッキング炉にて熱分解し、
熱分解後のPH3 を反応管内に導入して活性なリン雰
囲気中にてn−GaAs層(電流狭窄層8)を成長させ
ることにより、ダブルヘテロ結晶からのリンの脱離に伴
う結晶の劣化を防止している。
In the above manufacturing process, n-GaAs
Se is used as the n-type dopant of the layer (current confinement layer 8). As can be understood from Figure 3, this is due to the low temperature state (
This is because Se can be efficiently doped even at temperatures of 530 to 580°C. Until the current confinement layer 8 is formed, PH3 is supplied to prevent phosphorus from being removed from the double heterocrystal. However, in the low temperature state (530 ~ 5
(80° C.), the decomposition efficiency of PH3 is low, and phosphorus is easily eliminated from the double heterocrystal, which may cause the produced double heterocrystal to deteriorate. Therefore, in this example, PH3 is thermally decomposed in a cracking furnace in advance,
By introducing PH3 after thermal decomposition into the reaction tube and growing the n-GaAs layer (current confinement layer 8) in an active phosphorous atmosphere, the deterioration of the crystal due to the desorption of phosphorus from the double heterocrystal can be prevented. It is prevented.

【0013】電流狭窄層8及びキャップ層9形成のため
の成長温度を580 ℃以下としたので、図2からも理
解できるように、活性層4の特性劣化は生じない。また
、この結晶成長温度を530 ℃以上としたので、成長
されたn−GaAs層及びp−GaAs層は何れも単結
晶となった。これらが多結晶化すると、電流ブロック層
としての効果は弱く、またこの効果も経時変化が見られ
る、熱伝導率の低下が生じて熱抵抗も約2倍(50→1
00 W/cm・K)に上昇するという難点が発生する
が、本発明では単結晶化するので、これらの難点が問題
とならない。
Since the growth temperature for forming the current confinement layer 8 and the cap layer 9 was set at 580° C. or lower, as can be understood from FIG. 2, the characteristics of the active layer 4 do not deteriorate. Further, since the crystal growth temperature was set to 530° C. or higher, both the grown n-GaAs layer and p-GaAs layer became single crystals. When these become polycrystalline, their effect as a current blocking layer is weak, and this effect also changes over time.Thermal conductivity decreases, and the thermal resistance also doubles (50→1
However, since the present invention uses single crystallization, these drawbacks do not pose a problem.

【0014】次に、電流狭窄層及びキャップ層の成長温
度を530 〜580 ℃とした本発明の製造方法にて
製造した半導体レーザ(以下本発明例という)と、これ
らの成長温度を680 〜700 ℃とした従来の製造
方法にて製造した半導体レーザ(以下従来例という)と
の特性比較について説明する。
Next, a semiconductor laser (hereinafter referred to as an example of the present invention) manufactured by the manufacturing method of the present invention in which the current confinement layer and the cap layer were grown at a temperature of 530 to 580°C, and a semiconductor laser manufactured at a growth temperature of 680 to 700°C. A comparison of characteristics with a semiconductor laser manufactured by a conventional manufacturing method (hereinafter referred to as a conventional example) at .degree. C. will be described.

【0015】図4は、本発明例((a))と従来例((
b))とにおける電流─光出力特性を示すグラフである
。本発明例では従来例に比べて、発振しきい値を約33
%だけ低減できている。
FIG. 4 shows an example of the present invention ((a)) and a conventional example (((a)).
It is a graph which shows the electric current vs. light output characteristic in (b)). In the example of the present invention, compared to the conventional example, the oscillation threshold is set to about 33
It has been reduced by only %.

【0016】図5は、本発明例((a))と従来例((
b))とにおける信頼性試験の結果を示すグラフである
。試験条件は、光出力1mW,25℃, APC(Au
tomatic PowerControl)動作であ
る。本発明例では300 時間経過後も著しい劣化は見
られない。一方、従来例では数十時間以内に劣化してい
る。
FIG. 5 shows an example of the present invention ((a)) and a conventional example (((a)).
It is a graph which shows the result of the reliability test in b)). The test conditions were: optical output 1mW, 25℃, APC (Au
tomatic PowerControl) operation. In the example of the present invention, no significant deterioration was observed even after 300 hours had elapsed. On the other hand, in the conventional example, it deteriorates within several tens of hours.

【0017】以上の結果から、本発明の製造方法にて製
造した半導体レーザは、発振波長が630 〜640 
nmであり、しきい値電流が低く信頼性が高い。
From the above results, the semiconductor laser manufactured by the manufacturing method of the present invention has an oscillation wavelength of 630 to 640.
nm, has a low threshold current and high reliability.

【0018】[0018]

【発明の効果】以上のように、本発明の製造方法では、
電流狭窄層及びキャップ層の成長温度を530 〜58
0 ℃としたので、活性層の特性劣化を防止することが
でき、しきい値電流が低く、しかも信頼性が高くて寿命
が長いAlGaInP 系半導体レーザを容易に製造す
ることができる。
[Effects of the Invention] As described above, in the manufacturing method of the present invention,
The growth temperature of the current confinement layer and cap layer is 530 to 58
Since the temperature was set at 0° C., deterioration of the characteristics of the active layer can be prevented, and an AlGaInP semiconductor laser having a low threshold current, high reliability, and a long life can be easily manufactured.

【図面の簡単な説明】[Brief explanation of the drawing]

【図1】AlGaInP 系半導体レーザの構造を示す
断面図である。
FIG. 1 is a cross-sectional view showing the structure of an AlGaInP semiconductor laser.

【図2】n−GaAs層(電流狭窄層)及びp−GaA
s層(キャップ層)の成長温度とn−GaAs層及びp
−GaAs層成長後の活性層のPL半値幅との関係を示
すグラフである。
[Figure 2] n-GaAs layer (current confinement layer) and p-GaA
Growth temperature of s layer (cap layer) and n-GaAs layer and p
- It is a graph which shows the relationship with PL half-value width of an active layer after GaAs layer growth.

【図3】Seをドーパントして用いた場合のn−GaA
s層の成長温度とキャリア濃度との関係を示すグラフで
ある。
[Figure 3] n-GaA when doped with Se
It is a graph showing the relationship between the growth temperature of the s-layer and the carrier concentration.

【図4】本発明例と従来例とにおける電流─光出力特性
を示すグラフである。
FIG. 4 is a graph showing current-light output characteristics in an example of the present invention and a conventional example.

【図5】本発明例と従来例とにおける信頼性試験の結果
を示すグラフである。
FIG. 5 is a graph showing the results of a reliability test for an example of the present invention and a conventional example.

【符号の説明】[Explanation of symbols]

1  基板 2  バッファ層 3  クラッド層 4  活性層 5  クラッド層 6  コンタクト層 7  コンタクト層 8  電流狭窄層 9  キャップ層 1 Board 2 Buffer layer 3 Clad layer 4 Active layer 5 Clad layer 6 Contact layer 7 Contact layer 8 Current confinement layer 9 Cap layer

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】  (100) 面から〈011 〉方向
に5°以上傾斜したGaAs基板の主面に、AlGaI
nP 活性層とGaAs電流狭窄層とGaAsキャップ
層とを有するAlGaInP 系半導体レーザを、結晶
成長法を用いて製造する方法において、前記GaAs電
流狭窄層及びGaAsキャップ層の成長温度を530 
〜580 ℃とすることを特徴とする半導体レーザの製
造方法。
Claim 1: AlGaI is deposited on the main surface of a GaAs substrate tilted by 5° or more in the <011> direction from the (100) plane.
In a method for manufacturing an AlGaInP semiconductor laser having an nP active layer, a GaAs current confinement layer, and a GaAs cap layer using a crystal growth method, the growth temperature of the GaAs current confinement layer and the GaAs cap layer is set at 530° C.
A method for manufacturing a semiconductor laser, characterized in that the temperature is 580°C.
JP17738991A 1991-06-20 1991-06-20 Manufacturing method of semiconductor laser Expired - Fee Related JP2911260B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17738991A JP2911260B2 (en) 1991-06-20 1991-06-20 Manufacturing method of semiconductor laser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17738991A JP2911260B2 (en) 1991-06-20 1991-06-20 Manufacturing method of semiconductor laser

Publications (2)

Publication Number Publication Date
JPH04372189A true JPH04372189A (en) 1992-12-25
JP2911260B2 JP2911260B2 (en) 1999-06-23

Family

ID=16030087

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17738991A Expired - Fee Related JP2911260B2 (en) 1991-06-20 1991-06-20 Manufacturing method of semiconductor laser

Country Status (1)

Country Link
JP (1) JP2911260B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005175340A (en) * 2003-12-15 2005-06-30 Hitachi Cable Ltd Epitaxial wafer for semiconductor laser
JP2008294444A (en) * 2007-05-23 2008-12-04 Osram Opto Semiconductors Gmbh Semiconductor chip and method for manufacturing semiconductor chip

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005175340A (en) * 2003-12-15 2005-06-30 Hitachi Cable Ltd Epitaxial wafer for semiconductor laser
JP2008294444A (en) * 2007-05-23 2008-12-04 Osram Opto Semiconductors Gmbh Semiconductor chip and method for manufacturing semiconductor chip

Also Published As

Publication number Publication date
JP2911260B2 (en) 1999-06-23

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