US3916822A - Chemical vapor deposition reactor - Google Patents
Chemical vapor deposition reactor Download PDFInfo
- Publication number
- US3916822A US3916822A US464478A US46447874A US3916822A US 3916822 A US3916822 A US 3916822A US 464478 A US464478 A US 464478A US 46447874 A US46447874 A US 46447874A US 3916822 A US3916822 A US 3916822A
- Authority
- US
- United States
- Prior art keywords
- substrate
- vapor deposition
- chemical vapor
- radiation shield
- zone
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45563—Gas nozzles
- C23C16/45565—Shower nozzles
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45559—Diffusion of reactive gas to substrate
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/46—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for heating the substrate
Definitions
- ABSTRACT A chemical vapor deposition reactor produces deposits which are uniform in composition and thickness by minimizing convective currents in the immediate vicinity of the substrate. Heating of the substrate, positioning the substrate to face in a downward direction at the upper extremity of an essentially convectionfree zone, and a radiation shield are utilized.
- CVD Chemical vapor deposition
- CVD is a method of plating solid objects in which deposits are produced by chemical reactions near, at, or on the surface of a substrate. The method involves the introduction of one or more gaseous reactants into the vicinity of a substratewhere the substance to be deposited is produced by a change in chemical state such as a breakdown or a combination of reactants.
- CVD has found a variety of commercial applications; examples are the metallization of mirrors, the pigmentation, reinforcing, protection, and decoration of surfaces, and the manufacture of semiconductor devices and integrated circuitry.
- CVD can be used to deposit elemental substances as well as chemical compounds such as bromides, carbides, nitrides, oxides and silicides.
- Deposited films may be amorphous, polycrystalline, or epitaxial and they may be electrically insulating, semiconducting, or conducting.
- a survey of fundamentals, techniques, and applications of CVD is given in C. F. Powell et al (Ed.), VapbnDeposition, John Wiley and sons, Inc., 1966.
- the uniformity in thickness and composition of the deposit is a major concern; this is the case, for instance, with deposited films as they are used in the semiconductor industry.
- One apparatus designed to produce filmsof superior uniformity is the CVD device proposed in F. H. Nicoll, The Use of Close Spacing in Chemical- Transport Systems for Growing Epitaxial Layers of Semiconductors, Journal of the Electrochemical Society, Vol. 110, November 1963, pp. 1165-1167, where the source material is placedparall el to and at close range of the substrate. Howeve'r',the design of this device limits its use to solid source materials and does not allow for the introduction of gaseous reactants.
- the invention represents a chemical vapor deposition reactor which, by minimizing convective currents in the vicinity of the substrate, produces films of superior uniformity.
- Convection is prevented (1) by positioning the substrate at the upper boundary of the zone into which gaseous reactants are introduced, (2) by orienting the substrate to face in a downward direction, (3) by uniformly heating the substrate and the gases from above, and (4) by utilizing a radiation shield between the manifold through which gaseous components are introduced and the zone in the immediate vicinity of the substrate.
- FIGURE is a cross sectional view of an embodi ment of the invention.
- FIGURE shows enclosure lcontaining substrate support2 equipped with heater 3 and shown as supporting substrates 4 which face in a downward direction.
- Auxiliary peripheral heater 5 helps to maintain a uniform temperature distribution in the vicinity of, the substrates.
- Perforated radiation shields 6 and 7 protect inlet manifold 8 from thermal radiation emanating from support 2 and substrates 4.
- Reactant gases 9 pass upward through the perforated-radiation shields 6 and 7 and diffuse upward across the essentially convectionfree vicinity of substrate 4.
- Residual product gases 10 diffuse across the vicinity of substrate 4 in a downward direction and leave the reactor.
- Substrate support 2 is a stainless steel plate equipped with a cavity 21 which-is partly filled with sodium 22, evacuated, and sealed. Cavity 21 containsone or more piecesof wire mesh 23. in contact with the ceiling and the bottom of cavity 21. Under the influence of heat emanating from heater 3, sodium 22 liquefies, rises by capillary action along wire mesh 23 to the ceiling of cavity 21, evaporates, and condenses again at the bottom of cavity 21.
- the invention achieves uniformity of deposition through minimization of convection in the vicinity of the substrate. This minimization is accomplished by maintaining the substrate at an elevated temperature relative to the introduced reactant gases and by positioning it to face in a downward direction thus ensuring essentially planar and horizontal isotherms. Heating of the substrate may be accomplished by a variety of means, the key requirement being the uniformity of temperature at the surface ofthe substrate.
- One heater design which has been particularly effective in assuring uniform substrate temperature encompasses a so-called heat-pipel integral to the substrate support.
- a stainless steel plate supports the substrate and contains an evacuated and sealed cavity which is partly filled with a heat transfer medium such as liquid sodium.-Pieces-of,wire mesh are placed inside the cavity in contact with the' ceiling as:well as the bottom of the cavity to serve as a wick along which, through capillary action, the heat transfer medium reaches the top of the cavity.
- a heat transfer medium such as liquid sodium.-Pieces-of,wire mesh
- the heat transfer medium evaporates at the heated ceiling of the cavity and condenses at the cooler lower end of the cavity, efficiently transferring heat in a downward direction.
- peripheral heat and reactant losses should preferably be guarded against.
- this ratio was about 6:1
- peripheral heat loss was compensated by auxiliary heating from a heater tape wrapped around the reactor whose enclosure had a circular horizontal cross section.
- differently shaped enclosures may be advantageous.
- a radiation shield is placed between the substrate and the inlet manifold.
- the shield protects the inlet manifold from thermal radiation emanating from the substrate and its support and helps prevent forced convection in the vicinity of the substrate.
- the experimen tal embodiment utilizes a pair of gold plated fused quartz plates placed about 4 millimeters apart.
- plates are perforated and positioned relative to each other so that entering gases follow a tortuous rather then a straightthrough vertical path before reaching the vicinity of the substrate. While the experimental embodiment utilizes a pair of plates as a radiation shield, the use of only one or of more than two such plates is not precluded.
- reactant gases diffuse upward from the radiation shield. At the surface of the substrate reactants are consumed and products created by the deposition reaction. The residual gaseous products in turn diffuse downward and away from the vicinity of the substrate through the radiation shields.
- the inlet manifold located in the convection zone below the radiation shields, supplies fresh gases, preferably in a uniform, periodic array ofjets to the underside of the radiation shields. The incoming gases dilute the product gases which are forced out the bottom of the reactor; typical gas flow and deposition rates are shown in the examples below.
- EXAMPLE 1 Silicon dioxide was deposited onto silicon and tungsten metallized silicon at a temperature of 720C according to the chemical reaction Sil-l, 2N O SiO 2H, N,
- Chemical vapor deposition apparatus for depositing a layer of a substance on a surface of a substrate comprising means for supporting said substrate,
- said substrate means for uniformly maintaining said substrate at a temperature higher than that of said introduced gas characterized in that 1.
- said surface generally defines the upper extremityof said zone
- the lower extremity of said zone is-generally defined by a radiation shield permeable to reactant, carrier and product gases, and
- means are provided for introducing said gas at a position below said radiation shield.
- Chemical vapor deposition apparatus of claim 1 in which said radiation shield consists of at least one perforated plate in a position essentially parallel to said surface of said substrate and of which at least the plate closest to said surface is equipped with a heat-reflecting coating.
- Chemical vapor deposition apparatus of claim 2 in which said radiation shield consists of a pair of plates separated by a distance of 0.140 centimeters.
- Chemical vapor deposition apparatus of claim 1 equipped with an auxiliary heated positioned at the periphery of the zone between the substrate and the radiat ion shield.
- Chemical vapor deposition apparatus of claim 5 in which said plate is equipped with a heat pipe for transfer'ring heat from the upper to the lower extremity of said plate.
Abstract
A chemical vapor deposition reactor produces deposits which are uniform in composition and thickness by minimizing convective currents in the immediate vicinity of the substrate. Heating of the substrate, positioning the substrate to face in a downward direction at the upper extremity of an essentially convectionfree zone, and a radiation shield are utilized.
Description
' United States Patent 91 Robinson Nov. 4, 1975 CHEMICAL VAPOR DEPOSITION REACTOR [75] Inventor: McDonald Robinson, Chester, NJ.
[73] Assignee: Bell Telephone Laboratories,
Incorporated, Murray Hill, NJ.
3,677,329 7/1972 Kirkpatrick 165/105 3,690,635 9/1972 I-Iarker et a1 l18/49.5 X
FOREIGN PATENTS OR APPLICATIONS 218,262 5/1968 U.S.S.R 118/49.5
OTHER PUBLICATIONS Western Electric Co. Tech. Dig. Apparatus For The Deposition Of Silicon Nitride, Whitner, R. A., No. 11, (July 1968) pp. 5,6.
Primary Examiner-M0rris Kaplan Attorney, Agent, or Firm-G. S. Indig [57] ABSTRACT A chemical vapor deposition reactor produces deposits which are uniform in composition and thickness by minimizing convective currents in the immediate vicinity of the substrate. Heating of the substrate, positioning the substrate to face in a downward direction at the upper extremity of an essentially convectionfree zone, and a radiation shield are utilized.
6 Claims, 1 Drawing Figure U.S. Patent Nov. 4, 1975 H i K 1 CHEMICAL VAPOR DEPOSITION REACTOR BACKGROUND OF THE INVENTION 1. Field of the Invention The invention is concerned with the desposition of films on substrates; the Substance of the film being produced by a chemical reaction involving a gaseous phase.
2. Description of the Prior Art Chemical vapor deposition (abbreviated in the following as CVD) is a method of plating solid objects in which deposits are produced by chemical reactions near, at, or on the surface of a substrate. The method involves the introduction of one or more gaseous reactants into the vicinity of a substratewhere the substance to be deposited is produced by a change in chemical state such as a breakdown or a combination of reactants. CVD has found a variety of commercial applications; examples are the metallization of mirrors, the pigmentation, reinforcing, protection, and decoration of surfaces, and the manufacture of semiconductor devices and integrated circuitry..CVD can be used to deposit elemental substances as well as chemical compounds such as bromides, carbides, nitrides, oxides and silicides. Deposited films may be amorphous, polycrystalline, or epitaxial and they may be electrically insulating, semiconducting, or conducting. A survey of fundamentals, techniques, and applications of CVD is given in C. F. Powell et al (Ed.), VapbnDeposition, John Wiley and sons, Inc., 1966.
In many applications of films deposited byCVD the uniformity in thickness and composition of the deposit is a major concern; this is the case, for instance, with deposited films as they are used in the semiconductor industry. One apparatus designed to produce filmsof superior uniformity is the CVD device proposed in F. H. Nicoll, The Use of Close Spacing in Chemical- Transport Systems for Growing Epitaxial Layers of Semiconductors, Journal of the Electrochemical Society, Vol. 110, November 1963, pp. 1165-1167, where the source material is placedparall el to and at close range of the substrate. Howeve'r',the design of this device limits its use to solid source materials and does not allow for the introduction of gaseous reactants.
SUMMARY OF THE INVENTION The invention represents a chemical vapor deposition reactor which, by minimizing convective currents in the vicinity of the substrate, produces films of superior uniformity.
Convection is prevented (1) by positioning the substrate at the upper boundary of the zone into which gaseous reactants are introduced, (2) by orienting the substrate to face in a downward direction, (3) by uniformly heating the substrate and the gases from above, and (4) by utilizing a radiation shield between the manifold through which gaseous components are introduced and the zone in the immediate vicinity of the substrate.
BRIEF DESCRIPTION OF THE DRAWING The FIGURE is a cross sectional view of an embodi ment of the invention.
DETAILED DESCRIPTION THE DRAWING The FIGURE shows enclosure lcontaining substrate support2 equipped with heater 3 and shown as supporting substrates 4 which face in a downward direction. Auxiliary peripheral heater 5 helps to maintain a uniform temperature distribution in the vicinity of, the substrates. Perforated radiation shields 6 and 7 protect inlet manifold 8 from thermal radiation emanating from support 2 and substrates 4. Reactant gases 9 pass upward through the perforated-radiation shields 6 and 7 and diffuse upward across the essentially convectionfree vicinity of substrate 4. Residual product gases 10 diffuse across the vicinity of substrate 4 in a downward direction and leave the reactor.
Operational Principles l The invention achieves uniformity of deposition through minimization of convection in the vicinity of the substrate. This minimization is accomplished by maintaining the substrate at an elevated temperature relative to the introduced reactant gases and by positioning it to face in a downward direction thus ensuring essentially planar and horizontal isotherms. Heating of the substrate may be accomplished by a variety of means, the key requirement being the uniformity of temperature at the surface ofthe substrate. One heater design which has been particularly effective in assuring uniform substrate temperature encompasses a so-called heat-pipel integral to the substrate support. In this design, a stainless steel plate supports the substrate and contains an evacuated and sealed cavity which is partly filled with a heat transfer medium such as liquid sodium.-Pieces-of,wire mesh are placed inside the cavity in contact with the' ceiling as:well as the bottom of the cavity to serve as a wick along which, through capillary action, the heat transfer medium reaches the top of the cavity. Alternately, steel wood, fiberglass, or an equiva- .lent 'could be used instead of wire mesh. The heat transfer medium evaporates at the heated ceiling of the cavity and condenses at the cooler lower end of the cavity, efficiently transferring heat in a downward direction.
Unless the width-to-height ratio of the zone between the radiation shield and the substrate is very large, peripheral heat and reactant losses should preferably be guarded against. In an experimental embodiment of the invention in which this ratio was about 6:1, peripheral heat loss was compensated by auxiliary heating from a heater tape wrapped around the reactor whose enclosure had a circular horizontal cross section. Depending on the application, differently shaped enclosures may be advantageous.
In order to prevent premature heating of the entering gases as they pass through the inlet manifold, a radiation shield is placed between the substrate and the inlet manifold. The shield protects the inlet manifold from thermal radiation emanating from the substrate and its support and helps prevent forced convection in the vicinity of the substrate. For this purpose the experimen tal embodiment utilizes a pair of gold plated fused quartz plates placed about 4 millimeters apart. The
plates are perforated and positioned relative to each other so that entering gases follow a tortuous rather then a straightthrough vertical path before reaching the vicinity of the substrate. While the experimental embodiment utilizes a pair of plates as a radiation shield, the use of only one or of more than two such plates is not precluded.
During deposition, reactant gases diffuse upward from the radiation shield. At the surface of the substrate reactants are consumed and products created by the deposition reaction. The residual gaseous products in turn diffuse downward and away from the vicinity of the substrate through the radiation shields. The inlet manifold, located in the convection zone below the radiation shields, supplies fresh gases, preferably in a uniform, periodic array ofjets to the underside of the radiation shields. The incoming gases dilute the product gases which are forced out the bottom of the reactor; typical gas flow and deposition rates are shown in the examples below.
EXAMPLE 1 Silicon dioxide was deposited onto silicon and tungsten metallized silicon at a temperature of 720C according to the chemical reaction Sil-l, 2N O SiO 2H, N,
using helium as a carrier gas. Flow rates were 1.5 cm lmin for Sil-l 187.5 cm lmin for N 0, and 91 cm /min for helium. Under these conditions a deposition rate of 0.8 micrometers per hour was realized.
' Variation in thickness of the deposited layer, measured with a spectrophotometer, was found to be no more than 4 percent over the 1% inch diameter silicon wafers. This compares favorably with variation of up to percent resulting from the use of commercially available apparatus.
EXAMPLE 2 Silicon nitride was deposited onto stainless steel at a temperature of 720C according to the chemical reaction using helium as a carrier gas. Flow rates were 1.5
cm /min for SiH cm lmin for NH and 91 cmlmin for helium. A deposition rate of 1.2 micrometers per hour was achieved.
What is claimed is:
1. Chemical vapor deposition apparatus for depositing a layer of a substance on a surface of a substrate comprising means for supporting said substrate,
means for introducing at least one gas producing said substance into a zone adjacent to said surface,
means for extracting any residual gaseous material,
and
means for uniformly maintaining said substrate at a temperature higher than that of said introduced gas characterized in that 1. said surface generally defines the upper extremityof said zone,
2. said surface faces in a downward direction,
3. the lower extremity of said zone is-generally defined by a radiation shield permeable to reactant, carrier and product gases, and
4. means are provided for introducing said gas at a position below said radiation shield.
2. Chemical vapor deposition apparatus of claim 1 in which said radiation shield consists of at least one perforated plate in a position essentially parallel to said surface of said substrate and of which at least the plate closest to said surface is equipped with a heat-reflecting coating.
'3. Chemical vapor deposition apparatus of claim 2 in which said radiation shield consists of a pair of plates separated by a distance of 0.140 centimeters.
4. Chemical vapor deposition apparatus of claim 1 equipped with an auxiliary heated positioned at the periphery of the zone between the substrate and the radiat ion shield.
5. Chemical vapor deposition apparatus of claim 1 in which said supporting means is a heated plate.
6. Chemical vapor deposition apparatus of claim 5 in which said plate is equipped with a heat pipe for transfer'ring heat from the upper to the lower extremity of said plate.
Claims (13)
1. CHEMICAL VAPOR DEPOSITION APPARATUS FOR DEPOSITING A LAYER OF A SUBSTANCE ON A SURFACE OF A SUBSTRATE COMPRISING MEANS FOR SUPPORTING SAID SUBSTRATE, MEANS FOR INTRODUCING AT LEAST ONE GAS PRODUCING SAID SUBSTANCE INTO A ZONE ADJACENT TO SAID SURFACE, MEANS FOR EXTRACTING ANY RESIDUAL GASEOUS MATERIAL, AND MEANS FOR UNIFORMLY MAINTAINING SAID SUBSTRATE AT A TEMPERATURE HIGHER THAN THAT OF SAID INTRODUCED GAS CHARACTERIZED IN THAT
1. SAID SURFACE GENERALLY DEFINES THE UPPER EXTREMITY OF SAID ZONE,
2. SAID SURFACE FACES IN A DOWNWARD DIRECTION,
2. Chemical vapor deposition apparatus of claim 1 in which said radiation shield consists of at least one perforated plate in a position essentially parallel to said surface of said substrate and of which at least the plate closest to said surface is equipped with a heat-reflecting coating.
2. said surface faces in a downward direction,
3. Chemical vapor deposition apparatus of claim 2 in which said radiation shield consists of a pair of plates separated by a distance of 0.1-10 centimeters.
3. the lower extremity of said zone is generally defined by a radiation shield permeable to reactant, carrier and product gases, and
3. THE LOWER EXTREMITY OF SAID ZONE IS GENERALLY DEFINED BY A RADIATION SHIELD PERMEABLE TO REACTANT, CARRIER AND PRODUCT GASES, AND
4. MEANS ARE PROVIDED FOR INTRODUCING SAID GAS AT A POSITION BELOW SAID RADIATION SHIELD.
4. means are provided for introducing said gas at a position below said radiation shield.
4. Chemical vapor deposition apparatus of claim 1 equipped with an auxiliary heated positioned at the periphery of the zone between the substrate and the radiation shield.
5. Chemical vapor deposition apparatus of claim 1 in which said supporting means is a heated plate.
6. Chemical vapor deposition apparatus of claim 5 in which said plate is equipped with a heat pipe for transferring heat from the upper to the lower extremity of said plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US464478A US3916822A (en) | 1974-04-26 | 1974-04-26 | Chemical vapor deposition reactor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US464478A US3916822A (en) | 1974-04-26 | 1974-04-26 | Chemical vapor deposition reactor |
Publications (1)
Publication Number | Publication Date |
---|---|
US3916822A true US3916822A (en) | 1975-11-04 |
Family
ID=23844094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US464478A Expired - Lifetime US3916822A (en) | 1974-04-26 | 1974-04-26 | Chemical vapor deposition reactor |
Country Status (1)
Country | Link |
---|---|
US (1) | US3916822A (en) |
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4055217A (en) * | 1976-02-02 | 1977-10-25 | Western Electric Company, Inc. | Method for maintaining a vapor blanket in a condensation heating facility |
FR2570085A1 (en) * | 1984-09-13 | 1986-03-14 | Itaru Todoriki Dir Kogyo Gijut | DEVICE FOR FORMING THIN FILMS ON SUBSTRATES |
WO1986006755A1 (en) * | 1985-05-10 | 1986-11-20 | General Electric Company | Selective chemical vapor deposition method and apparatus |
US4653428A (en) * | 1985-05-10 | 1987-03-31 | General Electric Company | Selective chemical vapor deposition apparatus |
US4709655A (en) * | 1985-12-03 | 1987-12-01 | Varian Associates, Inc. | Chemical vapor deposition apparatus |
EP0276061A1 (en) * | 1987-01-15 | 1988-07-27 | Varian Associates, Inc. | Rapid thermal chemical vapour deposition apparatus |
US4798165A (en) * | 1985-10-07 | 1989-01-17 | Epsilon | Apparatus for chemical vapor deposition using an axially symmetric gas flow |
EP0299243A1 (en) * | 1987-07-16 | 1989-01-18 | Texas Instruments Incorporated | Processing apparatus and method |
EP0299244A1 (en) * | 1987-07-16 | 1989-01-18 | Texas Instruments Incorporated | Processing apparatus and method |
EP0299246A1 (en) * | 1987-07-16 | 1989-01-18 | Texas Instruments Incorporated | Processing apparatus and method |
EP0300217A2 (en) * | 1987-07-17 | 1989-01-25 | Texas Instruments Incorporated | Processing apparatus and method |
EP0319122A1 (en) * | 1987-11-30 | 1989-06-07 | Daidousanso Co., Ltd. | Apparatus and its use for producing semiconductors |
US4886570A (en) * | 1987-07-16 | 1989-12-12 | Texas Instruments Incorporated | Processing apparatus and method |
EP0396239A2 (en) * | 1989-04-03 | 1990-11-07 | Daidousanso Co., Ltd. | Apparatus for producing semiconductors by vapour phase deposition |
US4997677A (en) * | 1987-08-31 | 1991-03-05 | Massachusetts Institute Of Technology | Vapor phase reactor for making multilayer structures |
US5118642A (en) * | 1991-01-24 | 1992-06-02 | Daidousanso Co., Ltd. | Method for producing semiconductors |
US5138973A (en) * | 1987-07-16 | 1992-08-18 | Texas Instruments Incorporated | Wafer processing apparatus having independently controllable energy sources |
US5156820A (en) * | 1989-05-15 | 1992-10-20 | Rapro Technology, Inc. | Reaction chamber with controlled radiant energy heating and distributed reactant flow |
WO1995016804A1 (en) * | 1993-12-14 | 1995-06-22 | Materials Research Corporation | Gas diffuser plate assembly and rf electrode |
US5444217A (en) * | 1993-01-21 | 1995-08-22 | Moore Epitaxial Inc. | Rapid thermal processing apparatus for processing semiconductor wafers |
US5458689A (en) * | 1992-01-07 | 1995-10-17 | Fujitsu Limited | Apparatus and method for growing semiconductor crystal |
US5580388A (en) * | 1993-01-21 | 1996-12-03 | Moore Epitaxial, Inc. | Multi-layer susceptor for rapid thermal process reactors |
DE19622403C1 (en) * | 1996-06-04 | 1997-11-20 | Siemens Ag | Device for producing a layer on the surface of at least one substrate by CVD |
EP0848223A1 (en) * | 1996-06-04 | 1998-06-17 | Nippon Pillar Packing Co., Ltd. | Vertical heat treatment device |
EP0853138A1 (en) * | 1997-01-08 | 1998-07-15 | Ebara Corporation | Vapor-phase film growth apparatus and gas ejection head |
US6002109A (en) * | 1995-07-10 | 1999-12-14 | Mattson Technology, Inc. | System and method for thermal processing of a semiconductor substrate |
EP1143034A1 (en) * | 2000-04-06 | 2001-10-10 | Angewandte Solarenergie - ASE GmbH | Method and apparatus for coating or treatment of a substrate |
US20040060518A1 (en) * | 2001-09-29 | 2004-04-01 | Cree Lighting Company | Apparatus for inverted multi-wafer MOCVD fabrication |
US20060062900A1 (en) * | 2004-09-21 | 2006-03-23 | Venkat Selvamanickam | Chemical vapor deposition (CVD) apparatus usable in the manufacture of superconducting conductors |
US20060141414A1 (en) * | 2001-10-26 | 2006-06-29 | Mitsubishi Heavy Industries, Ltd. | Gas combustion treatment method and apparatus therefor |
US20060188658A1 (en) * | 2005-02-22 | 2006-08-24 | Grant Robert W | Pressurized reactor for thin film deposition |
US20090186194A1 (en) * | 2007-04-30 | 2009-07-23 | Nanoscale Components, Inc. | Batch Process for Coating Nanoscale Features and Devices Manufactured From Same |
US20110159214A1 (en) * | 2008-03-26 | 2011-06-30 | Gt Solar, Incorporated | Gold-coated polysilicon reactor system and method |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3015586A (en) * | 1958-01-15 | 1962-01-02 | Itt | Method of making charge storage electrodes for charge storage tubes |
US3117025A (en) * | 1961-08-31 | 1964-01-07 | Space Technology Lab Inc | Thin filming apparatus |
US3206325A (en) * | 1961-09-14 | 1965-09-14 | Alloyd Corp | Process for producing magnetic product |
US3446906A (en) * | 1967-05-17 | 1969-05-27 | Tektronix Inc | Resilient conductive coated foam member and electromagnetic shield employing same |
US3517643A (en) * | 1968-11-25 | 1970-06-30 | Sylvania Electric Prod | Vapor deposition apparatus including diffuser means |
US3677329A (en) * | 1970-11-16 | 1972-07-18 | Trw Inc | Annular heat pipe |
US3690635A (en) * | 1969-05-16 | 1972-09-12 | Air Reduction | Condensate collection means |
-
1974
- 1974-04-26 US US464478A patent/US3916822A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3015586A (en) * | 1958-01-15 | 1962-01-02 | Itt | Method of making charge storage electrodes for charge storage tubes |
US3117025A (en) * | 1961-08-31 | 1964-01-07 | Space Technology Lab Inc | Thin filming apparatus |
US3206325A (en) * | 1961-09-14 | 1965-09-14 | Alloyd Corp | Process for producing magnetic product |
US3446906A (en) * | 1967-05-17 | 1969-05-27 | Tektronix Inc | Resilient conductive coated foam member and electromagnetic shield employing same |
US3517643A (en) * | 1968-11-25 | 1970-06-30 | Sylvania Electric Prod | Vapor deposition apparatus including diffuser means |
US3690635A (en) * | 1969-05-16 | 1972-09-12 | Air Reduction | Condensate collection means |
US3677329A (en) * | 1970-11-16 | 1972-07-18 | Trw Inc | Annular heat pipe |
Cited By (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4055217A (en) * | 1976-02-02 | 1977-10-25 | Western Electric Company, Inc. | Method for maintaining a vapor blanket in a condensation heating facility |
FR2570085A1 (en) * | 1984-09-13 | 1986-03-14 | Itaru Todoriki Dir Kogyo Gijut | DEVICE FOR FORMING THIN FILMS ON SUBSTRATES |
WO1986006755A1 (en) * | 1985-05-10 | 1986-11-20 | General Electric Company | Selective chemical vapor deposition method and apparatus |
US4653428A (en) * | 1985-05-10 | 1987-03-31 | General Electric Company | Selective chemical vapor deposition apparatus |
US4798165A (en) * | 1985-10-07 | 1989-01-17 | Epsilon | Apparatus for chemical vapor deposition using an axially symmetric gas flow |
US4709655A (en) * | 1985-12-03 | 1987-12-01 | Varian Associates, Inc. | Chemical vapor deposition apparatus |
EP0276061A1 (en) * | 1987-01-15 | 1988-07-27 | Varian Associates, Inc. | Rapid thermal chemical vapour deposition apparatus |
US4886570A (en) * | 1987-07-16 | 1989-12-12 | Texas Instruments Incorporated | Processing apparatus and method |
EP0299243A1 (en) * | 1987-07-16 | 1989-01-18 | Texas Instruments Incorporated | Processing apparatus and method |
EP0299244A1 (en) * | 1987-07-16 | 1989-01-18 | Texas Instruments Incorporated | Processing apparatus and method |
EP0299246A1 (en) * | 1987-07-16 | 1989-01-18 | Texas Instruments Incorporated | Processing apparatus and method |
US5138973A (en) * | 1987-07-16 | 1992-08-18 | Texas Instruments Incorporated | Wafer processing apparatus having independently controllable energy sources |
EP0300217A2 (en) * | 1987-07-17 | 1989-01-25 | Texas Instruments Incorporated | Processing apparatus and method |
US4842686A (en) * | 1987-07-17 | 1989-06-27 | Texas Instruments Incorporated | Wafer processing apparatus and method |
EP0300217A3 (en) * | 1987-07-17 | 1989-04-12 | Texas Instruments Incorporated | Processing apparatus and method |
US4997677A (en) * | 1987-08-31 | 1991-03-05 | Massachusetts Institute Of Technology | Vapor phase reactor for making multilayer structures |
EP0319122A1 (en) * | 1987-11-30 | 1989-06-07 | Daidousanso Co., Ltd. | Apparatus and its use for producing semiconductors |
EP0396239A2 (en) * | 1989-04-03 | 1990-11-07 | Daidousanso Co., Ltd. | Apparatus for producing semiconductors by vapour phase deposition |
EP0396239A3 (en) * | 1989-04-03 | 1991-03-27 | Daidousanso Co., Ltd. | Apparatus for producing semiconductors by vapour phase deposition |
US5156820A (en) * | 1989-05-15 | 1992-10-20 | Rapro Technology, Inc. | Reaction chamber with controlled radiant energy heating and distributed reactant flow |
US5118642A (en) * | 1991-01-24 | 1992-06-02 | Daidousanso Co., Ltd. | Method for producing semiconductors |
US5772757A (en) * | 1992-01-07 | 1998-06-30 | Fujitsu Limited | Apparatus and method for growing semiconductor crystal |
US5458689A (en) * | 1992-01-07 | 1995-10-17 | Fujitsu Limited | Apparatus and method for growing semiconductor crystal |
US5580388A (en) * | 1993-01-21 | 1996-12-03 | Moore Epitaxial, Inc. | Multi-layer susceptor for rapid thermal process reactors |
US5444217A (en) * | 1993-01-21 | 1995-08-22 | Moore Epitaxial Inc. | Rapid thermal processing apparatus for processing semiconductor wafers |
US6310327B1 (en) | 1993-01-21 | 2001-10-30 | Moore Epitaxial Inc. | Rapid thermal processing apparatus for processing semiconductor wafers |
US5683518A (en) * | 1993-01-21 | 1997-11-04 | Moore Epitaxial, Inc. | Rapid thermal processing apparatus for processing semiconductor wafers |
US6151447A (en) * | 1993-01-21 | 2000-11-21 | Moore Technologies | Rapid thermal processing apparatus for processing semiconductor wafers |
US5710407A (en) * | 1993-01-21 | 1998-01-20 | Moore Epitaxial, Inc. | Rapid thermal processing apparatus for processing semiconductor wafers |
WO1995016804A1 (en) * | 1993-12-14 | 1995-06-22 | Materials Research Corporation | Gas diffuser plate assembly and rf electrode |
US5647911A (en) * | 1993-12-14 | 1997-07-15 | Sony Corporation | Gas diffuser plate assembly and RF electrode |
US5908508A (en) * | 1993-12-14 | 1999-06-01 | Tokyo Electron Limited | Gas diffuser plate assembly and RF electrode |
US6403925B1 (en) | 1995-07-10 | 2002-06-11 | Mattson Technology, Inc. | System and method for thermal processing of a semiconductor substrate |
US6002109A (en) * | 1995-07-10 | 1999-12-14 | Mattson Technology, Inc. | System and method for thermal processing of a semiconductor substrate |
EP0848223A4 (en) * | 1996-06-04 | 2000-07-12 | Nippon Pillar Packing | Vertical heat treatment device |
DE19622403C1 (en) * | 1996-06-04 | 1997-11-20 | Siemens Ag | Device for producing a layer on the surface of at least one substrate by CVD |
EP0848223A1 (en) * | 1996-06-04 | 1998-06-17 | Nippon Pillar Packing Co., Ltd. | Vertical heat treatment device |
EP0853138A1 (en) * | 1997-01-08 | 1998-07-15 | Ebara Corporation | Vapor-phase film growth apparatus and gas ejection head |
US6132512A (en) * | 1997-01-08 | 2000-10-17 | Ebara Corporation | Vapor-phase film growth apparatus and gas ejection head |
EP1143034A1 (en) * | 2000-04-06 | 2001-10-10 | Angewandte Solarenergie - ASE GmbH | Method and apparatus for coating or treatment of a substrate |
US8133322B2 (en) | 2001-09-29 | 2012-03-13 | Cree, Inc. | Apparatus for inverted multi-wafer MOCVD fabrication |
US20040060518A1 (en) * | 2001-09-29 | 2004-04-01 | Cree Lighting Company | Apparatus for inverted multi-wafer MOCVD fabrication |
US20060141414A1 (en) * | 2001-10-26 | 2006-06-29 | Mitsubishi Heavy Industries, Ltd. | Gas combustion treatment method and apparatus therefor |
US20060062900A1 (en) * | 2004-09-21 | 2006-03-23 | Venkat Selvamanickam | Chemical vapor deposition (CVD) apparatus usable in the manufacture of superconducting conductors |
US7387811B2 (en) * | 2004-09-21 | 2008-06-17 | Superpower, Inc. | Method for manufacturing high temperature superconducting conductors using chemical vapor deposition (CVD) |
US20060188658A1 (en) * | 2005-02-22 | 2006-08-24 | Grant Robert W | Pressurized reactor for thin film deposition |
US20090186194A1 (en) * | 2007-04-30 | 2009-07-23 | Nanoscale Components, Inc. | Batch Process for Coating Nanoscale Features and Devices Manufactured From Same |
US20110159214A1 (en) * | 2008-03-26 | 2011-06-30 | Gt Solar, Incorporated | Gold-coated polysilicon reactor system and method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3916822A (en) | Chemical vapor deposition reactor | |
US4082865A (en) | Method for chemical vapor deposition | |
JP3442536B2 (en) | Improvements on chemical vapor deposition | |
US6902622B2 (en) | Systems and methods for epitaxially depositing films on a semiconductor substrate | |
CA1251100A (en) | Chemical vapor deposition | |
US4401689A (en) | Radiation heated reactor process for chemical vapor deposition on substrates | |
US4634605A (en) | Method for the indirect deposition of amorphous silicon and polycrystalline silicone and alloys thereof | |
US4421786A (en) | Chemical vapor deposition reactor for silicon epitaxial processes | |
KR20180130854A (en) | Substrate supporting device and substrate processing apparatus including the same | |
US20080092812A1 (en) | Methods and Apparatuses for Depositing Uniform Layers | |
Faller et al. | High-temperature CVD for crystalline-silicon thin-film solar cells | |
JP3167964B2 (en) | Gas injection system and gas injection method for CVD reactor | |
KR101030422B1 (en) | Susceptor | |
EP0164928A3 (en) | Vertical hot wall cvd reactor | |
KR20130019568A (en) | Apparatus for manufacturing polycrystalline silicon and method for manufacturing polycrystalline | |
US3304908A (en) | Epitaxial reactor including mask-work support | |
EP0223787B1 (en) | Selective chemical vapor deposition method and apparatus | |
Long | The growth of Zn3P2 by metalorganic chemical vapor deposition | |
US3524776A (en) | Process for coating silicon wafers | |
JPS5943816B2 (en) | Method for manufacturing silicon semiconductor devices | |
US3565704A (en) | Aluminum nitride films and processes for producing the same | |
JPS6281019A (en) | Vertical vapor phase chemical generator | |
US3340848A (en) | Apparatus for producing purs semiconductor material | |
JP2762576B2 (en) | Vapor phase growth equipment | |
KR940007175Y1 (en) | Low pressure cvd apparatus of wafer |