JP2022140943A - 半導体発光装置および光結合装置 - Google Patents
半導体発光装置および光結合装置 Download PDFInfo
- Publication number
- JP2022140943A JP2022140943A JP2021041036A JP2021041036A JP2022140943A JP 2022140943 A JP2022140943 A JP 2022140943A JP 2021041036 A JP2021041036 A JP 2021041036A JP 2021041036 A JP2021041036 A JP 2021041036A JP 2022140943 A JP2022140943 A JP 2022140943A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- semiconductor layer
- semiconductor
- light
- substrate
- 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.)
- Pending
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 143
- 230000003287 optical effect Effects 0.000 title claims abstract description 19
- 230000008878 coupling Effects 0.000 title abstract description 14
- 238000010168 coupling process Methods 0.000 title abstract description 14
- 238000005859 coupling reaction Methods 0.000 title abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 59
- 230000004888 barrier function Effects 0.000 claims abstract description 41
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 claims description 21
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 21
- 239000013078 crystal Substances 0.000 claims description 16
- FTWRSWRBSVXQPI-UHFFFAOYSA-N alumanylidynearsane;gallanylidynearsane Chemical compound [As]#[Al].[As]#[Ga] FTWRSWRBSVXQPI-UHFFFAOYSA-N 0.000 claims description 12
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- KXNLCSXBJCPWGL-UHFFFAOYSA-N [Ga].[As].[In] Chemical compound [Ga].[As].[In] KXNLCSXBJCPWGL-UHFFFAOYSA-N 0.000 claims description 3
- 229910000980 Aluminium gallium arsenide Inorganic materials 0.000 description 15
- 239000011347 resin Substances 0.000 description 15
- 229920005989 resin Polymers 0.000 description 15
- 230000007423 decrease Effects 0.000 description 8
- 238000009826 distribution Methods 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 239000013256 coordination polymer Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L33/04—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 with a quantum effect structure or superlattice, e.g. tunnel junction
- H01L33/06—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 with a quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
- H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0216—Coatings
- H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/12—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
- H01L31/16—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources
- H01L31/167—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources the light sources and the devices sensitive to radiation all being semiconductor devices characterised by at least one potential or surface barrier
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/12—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
- H01L31/16—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources
- H01L31/167—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources the light sources and the devices sensitive to radiation all being semiconductor devices characterised by at least one potential or surface barrier
- H01L31/173—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources the light sources and the devices sensitive to radiation all being semiconductor devices characterised by at least one potential or surface barrier formed in, or on, a common substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L33/12—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 with a stress relaxation structure, e.g. buffer layer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
Abstract
Description
図1は、第1実施形態に係る半導体発光装置1を示す模式断面図である。半導体発光装置1は、例えば、波長900~1000nmの赤外光を放射するLEDである。
第1半導体層13、第2半導体層17、第1障壁層BL1および第3障壁層BL3には、アルミニウムガリウム砒素混晶(AlxGa1-xAs)を用いることができる。以下の例では、第1半導体層13のAl組成比をx1、第2半導体層17のAl組成比をx2、第1障壁層BL1および第3障壁層BL3のAl組成比をxbとする。AlGaAsは、Al組成xが大きくなると、屈折率が小さくなり、Egが広くなる。
図4(a)および(b)は、第2実施形態に係る光結合装置2を示す模式図である。図4(a)は、光結合装置2を示す斜視図である。図4(b)は、図4(a)中に示す切断面CPに沿った断面図である。光結合装置2は、所謂、フォトカプラである。
Claims (7)
- 第1エネルギーバンドギャップを有する基板と、
前記基板上に設けられ、前記第1エネルギーバンドギャップよりも広い第2エネルギーバンドギャップを有する第1導電形の第1半導体層と、
前記第1半導体層上に設けられ、前記第1および第2エネルギーバンドギャップよりも狭い第3エネルギーバンドギャップを有する少なくとも1つの量子井戸層と、前記第1半導体層と前記量子井戸層との間に設けられた第1障壁層と、を含む活性層と、
前記活性層上に設けられ、前記第3エネルギーバンドギャップよりも広い第4エネルギーバンドギャップを有する第2導電形の第2半導体層と、
を備え、
前記基板の屈折率は、前記活性層から放射される光の波長において、前記第1半導体層の屈折率よりも大きく、
前記第1半導体層の屈折率は、前記光の波長において、前記第1障壁層の屈折率と同じか、または、前記第1障壁層の屈折率よりも大きい半導体発光装置。 - 前記第2半導体層の屈折率は、前記活性層から放射される光の波長において、前記第1半導体層の屈折率よりも小さい請求項1記載の半導体発光装置。
- 前記基板と前記第1半導体層との間に設けられ、前記第3エネルギーバンドギャップよりも広い第4エネルギーバンドギャップを有し、前記活性層から放射される光の波長において、前記第1半導体層の屈折率よりも大きい第1導電形の中間層をさらに備えた請求項1または2に記載の半導体発光装置。
- 前記基板はガリウム砒素を含み、
前記第1半導体層は、第1アルミニウムガリウム砒素混晶を含み、
前記第1障壁層は、第2アルミニウムガリウム砒素混晶を含み、
前記第1アルミニウムガリウム砒素混晶のアルミニウム組成比は、前記第2アルミニウムガリウム砒素混晶のアルミニウム組成比と同じか、前記第2アルミニウムガリウム砒素混晶のアルミニウム組成比よりも小さい請求項1~3のいずれか1つに記載の半導体発光装置。 - 前記第2半導体層は、第3アルミニウムガリウム砒素混晶を含み、
前記第3アルミニウムガリウム砒素混晶のアルミニウム組成比は、前記第1アルミニウムガリウム砒素混晶の前記アルミニウム組成比、および、前記第2アルミニウムガリウム砒素混晶のアルミニウム組成比よりも大きい請求項4記載の半導体発光装置。 - 前記活性層は、前記量子井戸層と前記第2半導体層との間に設けられた第2障壁層をさらに含み、
前記量子井戸層は、インジウムガリウム砒素混晶を含み、前記第2障壁層は、アルミニウムガリウム砒素リン混晶を含む請求項1~5のいずれか1つに記載の半導体発光装置。 - 請求項1~6のいずれか1つに記載の半導体発光装置と、
前記半導体発光装置の前記基板の前記活性層とは反対側の裏面側に接合され、前記活性層から放射される光を受ける受光素子と、
を備えた光結合装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021041036A JP2022140943A (ja) | 2021-03-15 | 2021-03-15 | 半導体発光装置および光結合装置 |
CN202110965770.XA CN115084326A (zh) | 2021-03-15 | 2021-08-23 | 半导体发光装置及光耦合装置 |
US17/466,995 US11908972B2 (en) | 2021-03-15 | 2021-09-03 | Semiconductor light-emitting device and optical coupling device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021041036A JP2022140943A (ja) | 2021-03-15 | 2021-03-15 | 半導体発光装置および光結合装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2022140943A true JP2022140943A (ja) | 2022-09-29 |
Family
ID=83195139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021041036A Pending JP2022140943A (ja) | 2021-03-15 | 2021-03-15 | 半導体発光装置および光結合装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US11908972B2 (ja) |
JP (1) | JP2022140943A (ja) |
CN (1) | CN115084326A (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116504890B (zh) * | 2023-06-28 | 2023-09-01 | 江西兆驰半导体有限公司 | 一种红外反极性发光二极管外延片、制备方法及led |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2500617B2 (ja) * | 1993-06-25 | 1996-05-29 | 日本電気株式会社 | 屈折率制御光半導体構造 |
JP2007012688A (ja) | 2005-06-28 | 2007-01-18 | Toshiba Corp | 半導体発光素子 |
US7368759B2 (en) * | 2005-09-30 | 2008-05-06 | Hitachi Cable, Ltd. | Semiconductor light-emitting device |
JP4554526B2 (ja) | 2006-01-25 | 2010-09-29 | アンリツ株式会社 | 半導体発光素子 |
JP5186093B2 (ja) | 2006-09-26 | 2013-04-17 | スタンレー電気株式会社 | 半導体発光デバイス |
US7745843B2 (en) | 2006-09-26 | 2010-06-29 | Stanley Electric Co., Ltd. | Semiconductor light emitting device |
KR101316423B1 (ko) * | 2007-08-09 | 2013-10-08 | 엘지이노텍 주식회사 | 반도체 발광소자 및 그 제조방법 |
JP2009238778A (ja) | 2008-03-25 | 2009-10-15 | Eudyna Devices Inc | 発光素子の製造方法 |
JP2010245312A (ja) * | 2009-04-07 | 2010-10-28 | Hitachi Cable Ltd | 発光素子 |
JP2011009524A (ja) * | 2009-06-26 | 2011-01-13 | Hitachi Cable Ltd | 発光素子及び発光素子の製造方法 |
US9024292B2 (en) * | 2012-06-02 | 2015-05-05 | Xiaohang Li | Monolithic semiconductor light emitting devices and methods of making the same |
JP6226393B2 (ja) | 2015-12-24 | 2017-11-08 | 株式会社東芝 | 光結合装置 |
JP7240148B2 (ja) | 2018-11-21 | 2023-03-15 | 株式会社東芝 | 光結合装置 |
-
2021
- 2021-03-15 JP JP2021041036A patent/JP2022140943A/ja active Pending
- 2021-08-23 CN CN202110965770.XA patent/CN115084326A/zh active Pending
- 2021-09-03 US US17/466,995 patent/US11908972B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US11908972B2 (en) | 2024-02-20 |
US20220293817A1 (en) | 2022-09-15 |
CN115084326A (zh) | 2022-09-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6593602B2 (en) | Edge emission type semiconductor device for emitting super luminescent light, its manufacture and spatial optical communication device | |
US20120287958A1 (en) | Laser Diode Assembly and Method for Producing a Laser Diode Assembly | |
JP7137556B2 (ja) | 半導体レーザ装置、半導体レーザモジュール、溶接用レーザ光源システム、及び、半導体レーザ装置の製造方法 | |
KR20070000290A (ko) | 비대칭 광도파층을 지닌 반도체 레이저 다이오드 | |
KR20060136260A (ko) | 비대칭 광도파층을 지닌 반도체 레이저 다이오드 | |
EP0174344A1 (en) | LUMINESCENCE DIODE WITH EDGE EMISSION. | |
US20070071050A1 (en) | Laser diode device | |
US6539040B2 (en) | Laser diode and fabrication process thereof | |
JP5480192B2 (ja) | 半導体発光素子の製造方法 | |
JP5307300B2 (ja) | 光デバイス、光デバイスの製造方法、およびレーザモジュール | |
JP2022140943A (ja) | 半導体発光装置および光結合装置 | |
US6947461B2 (en) | Semiconductor laser device | |
US7957442B2 (en) | Semiconductor optical device | |
US7103080B2 (en) | Laser diode with a low absorption diode junction | |
JP2003519931A (ja) | 相分離が抑制されたiii族窒化物半導体構造 | |
US6493132B1 (en) | Monolithic optically pumped high power semiconductor lasers and amplifiers | |
JP2007194390A (ja) | 半導体発光装置の製造方法 | |
WO2020100608A1 (ja) | 半導体レーザおよび電子機器 | |
KR100278626B1 (ko) | 반도체 레이저 다이오드 | |
US20220276439A1 (en) | Waveguide structure for a photonic integrated circuit | |
KR100991989B1 (ko) | 비대칭 웨이브가이드 레이저 다이오드 | |
JP2024053342A (ja) | 面発光型量子カスケードレーザおよびその制御方法 | |
JP4962737B2 (ja) | 光半導体装置 | |
CN117254350A (zh) | 半导体器件及其形成方法 | |
CN116746012A (zh) | 半导体激光器元件 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20230202 |
|
RD01 | Notification of change of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7421 Effective date: 20230623 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20230929 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20231101 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20240104 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20240402 |