FR2348572A1 - Procede de croissance d'une couche epitaxiale pour la fabrication de dispositifs a semi-conducteurs - Google Patents
Procede de croissance d'une couche epitaxiale pour la fabrication de dispositifs a semi-conducteursInfo
- Publication number
- FR2348572A1 FR2348572A1 FR7710561A FR7710561A FR2348572A1 FR 2348572 A1 FR2348572 A1 FR 2348572A1 FR 7710561 A FR7710561 A FR 7710561A FR 7710561 A FR7710561 A FR 7710561A FR 2348572 A1 FR2348572 A1 FR 2348572A1
- Authority
- FR
- France
- Prior art keywords
- growth
- manufacture
- semiconductor devices
- epitaxial layer
- epitaxial
- 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
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/822—Materials of the light-emitting regions
- H10H20/824—Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B19/00—Liquid-phase epitaxial-layer growth
- C30B19/10—Controlling or regulating
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
- H04B10/43—Transceivers using a single component as both light source and receiver, e.g. using a photoemitter as a photoreceiver
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F30/00—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors
- H10F30/20—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors
- H10F30/21—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors the devices being sensitive to infrared, visible or ultraviolet radiation
- H10F30/22—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors the devices being sensitive to infrared, visible or ultraviolet radiation the devices having only one potential barrier, e.g. photodiodes
- H10F30/222—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors the devices being sensitive to infrared, visible or ultraviolet radiation the devices having only one potential barrier, e.g. photodiodes the potential barrier being a PN heterojunction
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F30/00—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors
- H10F30/20—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors
- H10F30/21—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors the devices being sensitive to infrared, visible or ultraviolet radiation
- H10F30/22—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors the devices being sensitive to infrared, visible or ultraviolet radiation the devices having only one potential barrier, e.g. photodiodes
- H10F30/227—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors the devices being sensitive to infrared, visible or ultraviolet radiation the devices having only one potential barrier, e.g. photodiodes the potential barrier being a Schottky barrier
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/811—Bodies having quantum effect structures or superlattices, e.g. tunnel junctions
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/26—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials using liquid deposition
- H10P14/263—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials using liquid deposition using melted materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/26—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials using liquid deposition
- H10P14/265—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials using liquid deposition using solutions
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/29—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials characterised by the substrates
- H10P14/2901—Materials
- H10P14/2907—Materials being Group IIIA-VA materials
- H10P14/2911—Arsenides
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/32—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials characterised by intermediate layers between substrates and deposited layers
- H10P14/3202—Materials thereof
- H10P14/3214—Materials thereof being Group IIIA-VA semiconductors
- H10P14/3218—Phosphides
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/32—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials characterised by intermediate layers between substrates and deposited layers
- H10P14/3202—Materials thereof
- H10P14/3214—Materials thereof being Group IIIA-VA semiconductors
- H10P14/3221—Arsenides
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/32—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials characterised by intermediate layers between substrates and deposited layers
- H10P14/3202—Materials thereof
- H10P14/3214—Materials thereof being Group IIIA-VA semiconductors
- H10P14/3222—Antimonides
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/32—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials characterised by intermediate layers between substrates and deposited layers
- H10P14/3242—Structure
- H10P14/3244—Layer structure
- H10P14/3254—Graded layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/34—Deposited materials, e.g. layers
- H10P14/3402—Deposited materials, e.g. layers characterised by the chemical composition
- H10P14/3414—Deposited materials, e.g. layers characterised by the chemical composition being group IIIA-VIA materials
- H10P14/3418—Phosphides
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/34—Deposited materials, e.g. layers
- H10P14/3402—Deposited materials, e.g. layers characterised by the chemical composition
- H10P14/3414—Deposited materials, e.g. layers characterised by the chemical composition being group IIIA-VIA materials
- H10P14/3421—Arsenides
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/34—Deposited materials, e.g. layers
- H10P14/3402—Deposited materials, e.g. layers characterised by the chemical composition
- H10P14/3414—Deposited materials, e.g. layers characterised by the chemical composition being group IIIA-VIA materials
- H10P14/3422—Antimonides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S438/00—Semiconductor device manufacturing: process
- Y10S438/936—Graded energy gap
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Led Devices (AREA)
- Light Receiving Elements (AREA)
- Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)
- Semiconductor Lasers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/676,556 US4032951A (en) | 1976-04-13 | 1976-04-13 | Growth of iii-v layers containing arsenic, antimony and phosphorus, and device uses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2348572A1 true FR2348572A1 (fr) | 1977-11-10 |
| FR2348572B1 FR2348572B1 (https=) | 1982-01-22 |
Family
ID=24714996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7710561A Granted FR2348572A1 (fr) | 1976-04-13 | 1977-04-07 | Procede de croissance d'une couche epitaxiale pour la fabrication de dispositifs a semi-conducteurs |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US4032951A (https=) |
| JP (1) | JPS52124886A (https=) |
| CA (1) | CA1092006A (https=) |
| DE (1) | DE2715558A1 (https=) |
| FR (1) | FR2348572A1 (https=) |
| GB (1) | GB1526695A (https=) |
| NL (1) | NL7703967A (https=) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51149784A (en) * | 1975-06-17 | 1976-12-22 | Matsushita Electric Ind Co Ltd | Solid state light emission device |
| DE2730358C3 (de) * | 1977-07-05 | 1982-03-18 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zum aufeinanderfolgenden Abscheiden einkristalliner Schichten auf einem Substrat nach der Flüssigphasen-Schiebeepitaxie |
| US4136350A (en) * | 1977-07-14 | 1979-01-23 | Bell Telephone Laboratories, Incorporated | Epitaxial growth of dissimilar materials |
| US4207122A (en) * | 1978-01-11 | 1980-06-10 | International Standard Electric Corporation | Infra-red light emissive devices |
| US4184171A (en) * | 1978-07-05 | 1980-01-15 | Bell Telephone Laboratories, Incorporated | Light emitting diodes which emit in the infrared |
| FR2435816A1 (fr) * | 1978-09-08 | 1980-04-04 | Radiotechnique Compelec | Procede de realisation, par epitaxie, d'un dispositif semi-conducteur a structure multicouches et application de ce procede |
| US4195305A (en) * | 1978-09-25 | 1980-03-25 | Varian Associates, Inc. | Lattice constant grading in the Aly Ga1-y As1-x Sbx alloy system |
| US4214550A (en) * | 1979-05-21 | 1980-07-29 | Rca Corporation | Apparatus for the deposition of a material from a liquid phase |
| US4246050A (en) * | 1979-07-23 | 1981-01-20 | Varian Associates, Inc. | Lattice constant grading in the Aly Ca1-y As1-x Sbx alloy system |
| US4263064A (en) * | 1980-02-19 | 1981-04-21 | The United States Of America As Represented By The Secretary Of The Navy | Method of liquid phase epitaxial growth |
| US4319937A (en) * | 1980-11-12 | 1982-03-16 | University Of Illinois Foundation | Homogeneous liquid phase epitaxial growth of heterojunction materials |
| US4342148A (en) * | 1981-02-04 | 1982-08-03 | Northern Telecom Limited | Contemporaneous fabrication of double heterostructure light emitting diodes and laser diodes using liquid phase epitaxy |
| US4439399A (en) * | 1982-05-06 | 1984-03-27 | The United States Of America As Represented By The Secretary Of The Air Force | Quaternary alloy |
| US4500367A (en) * | 1983-10-31 | 1985-02-19 | At&T Bell Laboratories | LPE Growth on group III-V compound semiconductor substrates containing phosphorus |
| CA1256590A (en) * | 1985-03-15 | 1989-06-27 | Yuichi Matsui | Compound semiconductor device with layers having different lattice constants |
| DE3679618D1 (de) * | 1985-08-26 | 1991-07-11 | Matsushita Electric Industrial Co Ltd | Halbleiterbauelement mit einem abrupten uebergang und verfahren zu seiner herstellung mittels epitaxie. |
| DE3876869D1 (de) * | 1987-06-22 | 1993-02-04 | Landis & Gyr Betriebs Ag | Photodetektor fuer ultraviolett und verfahren zur herstellung. |
| US4859628A (en) * | 1988-04-11 | 1989-08-22 | Northern Telecom Limited | Interrupted liquid phase epitaxy process |
| JPH02174272A (ja) * | 1988-12-17 | 1990-07-05 | Samsung Electron Co Ltd | 発光ダイオードアレイの製造方法 |
| CA2125212A1 (en) * | 1993-09-13 | 1995-03-14 | John E. Cunningham | Method for producing a precise alloy composition from input variables under nonlinear incorporation conditions |
| US6246808B1 (en) * | 1999-05-21 | 2001-06-12 | Trw Inc. | Optical switch apparatus |
| US7483462B2 (en) * | 2004-04-30 | 2009-01-27 | Finisar Corporation | Long wavelength VCSEL active region using Sb in GaAsN barrier layers and InGaAsN quantum wells |
| DE102004023977A1 (de) * | 2004-05-14 | 2006-01-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Transparenter Kontakt und Verfahren zu dessen Herstellung |
| KR20060032047A (ko) * | 2004-10-11 | 2006-04-14 | 삼성전자주식회사 | 시료의 표면 분석 방법 |
| DE212009000126U1 (de) * | 2008-09-30 | 2011-12-20 | Nikolay N. Skaldin | Kristallisator |
| US7915639B2 (en) * | 2008-10-20 | 2011-03-29 | Aerius Photonics Llc | InGaAsSbN photodiode arrays |
| RU2605839C2 (ru) * | 2015-03-03 | 2016-12-27 | Российская Федерация, от имени которой выступает Государственная корпорация по космической деятельности "РОСКОСМОС" (Госкорпорация "РОСКОСМОС") | Фотоэлектрический преобразователь |
| EP3314660B1 (en) | 2015-06-23 | 2025-12-17 | Intel Corporation | Indium-rich nmos transistor channels |
| US11322640B2 (en) * | 2019-03-20 | 2022-05-03 | Trieye Ltd. | Ge—GaAs heterojunction-based SWIR photodetector |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE620887A (https=) * | 1959-06-18 | |||
| US3614549A (en) * | 1968-10-15 | 1971-10-19 | Ibm | A semiconductor recombination radiation device |
| US3560275A (en) * | 1968-11-08 | 1971-02-02 | Rca Corp | Fabricating semiconductor devices |
| US3677836A (en) * | 1969-09-23 | 1972-07-18 | Ibm | Liquid epitaxy method of fabricating controlled band gap gaal as electroluminescent devices |
| US3696262A (en) * | 1970-01-19 | 1972-10-03 | Varian Associates | Multilayered iii-v photocathode having a transition layer and a high quality active layer |
| US3785885A (en) * | 1970-03-24 | 1974-01-15 | Texas Instruments Inc | Epitaxial solution growth of ternary iii-v compounds |
| US3721583A (en) * | 1970-12-08 | 1973-03-20 | Ibm | Vapor phase epitaxial deposition process for forming superlattice structure |
| US3933538A (en) * | 1972-01-18 | 1976-01-20 | Sumitomo Electric Industries, Ltd. | Method and apparatus for production of liquid phase epitaxial layers of semiconductors |
| US3821033A (en) * | 1972-08-03 | 1974-06-28 | Ibm | Method for producing flat composite semiconductor substrates |
| US3982261A (en) * | 1972-09-22 | 1976-09-21 | Varian Associates | Epitaxial indium-gallium-arsenide phosphide layer on lattice-matched indium-phosphide substrate and devices |
| US3852591A (en) * | 1973-10-19 | 1974-12-03 | Bell Telephone Labor Inc | Graded bandgap semiconductor photodetector for equalization of optical fiber material delay distortion |
| US3958263A (en) * | 1973-11-12 | 1976-05-18 | Bell Telephone Laboratories, Incorporated | Stress reduction in algaas-algaasp multilayer structures |
| US3962716A (en) * | 1973-11-12 | 1976-06-08 | Bell Telephone Laboratories, Incorporated | Reduction of dislocations in multilayer structures of zinc-blend materials |
-
1976
- 1976-04-13 US US05/676,556 patent/US4032951A/en not_active Expired - Lifetime
-
1977
- 1977-03-10 CA CA273,697A patent/CA1092006A/en not_active Expired
- 1977-03-29 US US05/782,354 patent/US4072544A/en not_active Expired - Lifetime
- 1977-04-07 GB GB14740/77A patent/GB1526695A/en not_active Expired
- 1977-04-07 FR FR7710561A patent/FR2348572A1/fr active Granted
- 1977-04-07 DE DE19772715558 patent/DE2715558A1/de not_active Ceased
- 1977-04-12 NL NL7703967A patent/NL7703967A/xx not_active Application Discontinuation
- 1977-04-13 JP JP4159977A patent/JPS52124886A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52124886A (en) | 1977-10-20 |
| CA1092006A (en) | 1980-12-23 |
| NL7703967A (nl) | 1977-10-17 |
| DE2715558A1 (de) | 1977-10-27 |
| FR2348572B1 (https=) | 1982-01-22 |
| GB1526695A (en) | 1978-09-27 |
| US4072544A (en) | 1978-02-07 |
| US4032951A (en) | 1977-06-28 |
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