US20030089315A1 - Metal film production apparatus - Google Patents
Metal film production apparatus Download PDFInfo
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- US20030089315A1 US20030089315A1 US10/277,207 US27720702A US2003089315A1 US 20030089315 A1 US20030089315 A1 US 20030089315A1 US 27720702 A US27720702 A US 27720702A US 2003089315 A1 US2003089315 A1 US 2003089315A1
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- chamber
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- source gas
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- 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
- C23C16/06—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 deposition of metallic material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
- H01J37/321—Radio frequency generated discharge the radio frequency energy being inductively coupled to the plasma
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- 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
- C23C16/06—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 deposition of metallic material
- C23C16/08—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 deposition of metallic material from metal halides
- C23C16/14—Deposition of only one other metal element
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- 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
- C23C16/448—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 generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
- C23C16/4488—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 generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials by in situ generation of reactive gas by chemical or electrochemical reaction
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/20—Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated
- H01J2237/2001—Maintaining constant desired temperature
Definitions
- This invention relates to a metal film production apparatus and a metal film production method which produce a metal film on the surface of a substrate by a vapor phase growth method.
- a metal film such as a thin film of copper
- a metal film such as a thin film of copper
- an organometallic complex of a liquid for example, copper-hexafluoroacetylacetonato-trimethylvinylsilane
- dissolve the solid starting material in a solvent dissolve the solid starting material in a solvent, and vaporize the solution by use of a thermal reaction to form a film on a substrate.
- the present invention has been accomplished in light of the circumstances described above. Its object is to provide a metal film production apparatus and a metal film production method which have a high film formation speed, which can use an inexpensive starting material, and which are free from impurities remaining in a film.
- a metal film production apparatus comprising a chamber accommodating a substrate and having an upper portion open; source gas supply means for supplying a source gas containing a halogen into the chamber; a ceiling member made of an insulating material for closing an opening of the upper portion of the chamber; an antenna member provided outwardly of the ceiling member and adapted to convert an atmosphere within the chamber into a plasma by supply of power; an etched member made of a metal and comprising a plurality of segments which are arranged between the substrate and the ceiling member in a discontinuous state relative to a flowing direction of electricity in the antenna member; plasma generation means which supplies power to the antenna member to generate on a substrate side of the etched member a flow of electricity in the same direction as the flowing direction of electricity in the antenna member, thereby converting the atmosphere within the chamber into a plasma and generating a source gas plasma so that the etched member is etched with the source gas plasma to form a precursor of a metal component contained in the etched member
- the invention can provide a metal film production apparatus which has a high film formation speed, which can use an inexpensive starting material, and which can form a metal film free from impurities remaining therein. Furthermore, an induced current occurring in the etched member flows in the same direction as the direction of flow of electricity in the antenna member when viewed from the substrate. Even though the etched member, an electric conductor, exists opposite the antenna member, electromagnetic waves are reliably thrown from the antenna member into the chamber. Consequently, the source gas plasma can be stably generated, with the etched member being held between the antenna member and the substrate.
- a metal film production apparatus comprising a cylindrical chamber accommodating a substrate and open at one end; a disk-shaped ceiling member made of an insulating material for closing an opening of the chamber; source gas supply means for supplying a source gas containing a halogen into the chamber; an antenna member of a planar ring shape provided outwardly of the ceiling member and adapted to convert an atmosphere within the chamber into a plasma by supply of power; an etched member made of a metal and comprising a plurality of segments which are arranged in a circumferential direction of the chamber and extend in a diametrical direction of the chamber between the substrate and the ceiling member, and which are in a discontinuous state relative to a flowing direction of electricity in the antenna member; plasma generation means which supplies power to the antenna member to generate on a substrate side of the etched member a flow of electricity in the same direction as the flowing direction of electricity in the antenna member, thereby converting the atmosphere within the chamber into a plasma and generating
- a metal film production apparatus comprising a cylindrical chamber accommodating a substrate and open at one end; an outwardly curved convex ceiling member made of an insulating material for closing an opening of the chamber; source gas supply means for supplying a source gas containing a halogen into the chamber; an antenna member of a conical ring shape provided in surroundings outward of the ceiling member and adapted to convert an atmosphere within the chamber into a plasma by supply of power; an etched member made of a metal and comprising a plurality of segments which are arranged in a circumferential direction of the chamber and extend in a diametrical direction of the chamber between the substrate and the ceiling member, and which are in a discontinuous state relative to a flowing direction of electricity in the antenna member; plasma generation means which supplies power to the antenna member to generate on a substrate side of the etched member a flow of electricity in the same direction as the flowing direction of electricity in the antenna member, thereby converting the atmosphere within the chamber into
- the invention can provide a metal film production apparatus which has a high film formation speed, which can use an inexpensive starting material, and which can form a metal film free from impurities remaining therein. Furthermore, an induced current occurring in the etched member flows in the same direction as the direction of flow of electricity in the conical ring-shaped antenna member when viewed from the substrate. Even though the etched member, an electric conductor, exists opposite the conical ring-shaped antenna member, electromagnetic waves are reliably thrown from the antenna member into the chamber. Consequently, the source gas plasma can be stably generated inwardly of the etched member.
- a metal film production apparatus comprising a cylindrical chamber accommodating a substrate and open at one end; a disk-shaped ceiling member made of an insulating material for closing an opening of the chamber; a tubular portion made of an insulating material which is provided on the one end of the chamber; source gas supply means for supplying a source gas containing a halogen into the chamber; an antenna member of a planar ring shape provided outwardly of the ceiling member and adapted to convert an atmosphere within the chamber into a plasma by supply of power; a coil antenna member of a cylindrical coil shape provided around the tubular portion and adapted to convert the atmosphere within the chamber into a plasma by supply of power; an etched member made of a metal and comprising a plurality of segments which are arranged in a circumferential direction of the chamber and extend in a diametrical direction of the chamber between the substrate and the ceiling member, and which are in a discontinuous state relative to a flowing direction of electricity in the antenna
- the invention can provide a metal film production apparatus which has a high film formation speed, which can use an inexpensive starting material, and which can form a metal film free from impurities remaining therein. Furthermore, an induced current occurring in the etched member flows in the same direction as the direction of flow of electricity in the planar ring-shaped antenna member and the coil antenna member when viewed from the substrate. Even though the etched member, an electric conductor, exists opposite the planar ring-shaped antenna member and the coil antenna member, electromagnetic waves are reliably thrown from the antenna members into the chamber. Consequently, the source gas plasma can be stably generated inwardly of the etched member.
- the metal film production apparatus may further comprise same potential maintaining means for connecting the plurality of segments of the etched member electrically to impart the same potential thereto.
- the temperature control means may be means provided in the etched member and adapted to keep the etched member at a higher temperature than the temperature of the substrate.
- the source gas supply means may be a gas supply passage and gas ejection holes provided in the etched member, the gas ejection holes communicating with the gas supply passage.
- a concave portion for creating a discontinuous concavity may be formed in a surface of the etched member facing the substrate.
- the source gas containing the halogen may be a source gas containing chlorine.
- the etched member may be made of copper to form Cu x Cl y as the precursor.
- the etched member may be made of tantalum, tungsten or titanium which is a halide-forming metal.
- a metal film production method involving converting an atmosphere within a chamber accommodating a substrate into a plasma by supply of power from an antenna member, comprising: disposing an etched member made of a metal and comprising a plurality of segments which are arranged in a discontinuous state relative to a flowing direction of electricity in the antenna member; supplying power to the antenna member to generate on a substrate side of the etched member a flow of electricity in the same direction as the flowing direction of electricity in the antenna member, thereby converting the atmosphere within the chamber into a plasma and generating a source gas plasma so that the etched member is etched with the source gas plasma to form a precursor of a metal component contained in the etched member and a source gas; and controlling a temperature of the substrate to be lower than a temperature of the etched member to deposit the metal component of the precursor on the substrate as a film.
- the invention can provide a metal film production method which has a high film formation speed, which can use an inexpensive starting material, and which can form a metal film free from impurities remaining therein. Furthermore, an induced current occurring in the etched member flows in the same direction as the direction of flow of electricity in the antenna member when viewed from the substrate. Even though the etched member, an electric conductor, exists opposite the antenna member, electromagnetic waves are reliably thrown from the antenna member into the chamber. Consequently, the source gas plasma can be stably generated, with the etched member being held between the antenna member and the substrate.
- the source gas containing the halogen may be a source gas containing chlorine.
- the etched member may be made of copper to form Cu x Cl y as the precursor.
- the etched member may be made of tantalum, tungsten or titanium which is a halide-forming metal.
- FIG. 1 is a schematic side view of a metal film production apparatus for performing a metal film production method according to a first embodiment of the present invention
- FIG. 2 is a sectional view taken on line II-II of FIG. 1;
- FIG. 3 is a sectional view taken on line III-III of FIG. 2;
- FIG. 4 is a plan view showing another embodiment of an etched member
- FIG. 5 is a schematic side view of a metal film production apparatus for performing a metal film production method according to a second embodiment of the present invention
- FIG. 6 is a schematic side view of a metal film production apparatus for performing a metal film production method according to a third embodiment of the present invention.
- FIG. 7 is a schematic side view of a metal film production apparatus for performing a metal film production method according to a fourth embodiment of the present invention.
- FIG. 8 is a schematic side view of a metal film production apparatus for performing a metal film production method according to a fifth embodiment of the present invention.
- FIG. 1 is a schematic side view of the metal film production apparatus for performing the metal film production method according to the first embodiment of the present invention.
- FIG. 2 is a sectional view taken on line II-II of FIG. 1.
- FIG. 3 is a sectional view taken on line III-III of FIG. 2.
- FIG. 4 is a plan view showing another embodiment of an etched member.
- a support platform 2 is provided near the bottom of a cylindrical chamber 1 made of a metal (e.g., aluminum), and a substrate 3 is placed on the support platform 2 .
- Temperature control means 6 equipped with a heater 4 and refrigerant flow-through means 5 is provided in the support platform 2 so that the support platform 2 is controlled to a predetermined temperature (for example, a temperature at which the substrate 3 is maintained at 100 to 200° C.) by the temperature control means 6 .
- An upper surface of the chamber 1 is an opening, which is closed with a disk-shaped ceiling board 7 , a ceiling member made of an insulating material (for example, a ceramic).
- the interior of the chamber 1 closed with the ceiling board 7 is maintained at a predetermined pressure by a vacuum device 8 .
- a nozzle 12 for supplying a source gas (a Cl 2 gas diluted with He or Ar to a chlorine concentration of ⁇ 50%, preferably about 10%) containing chlorine as a halogen to the interior of the chamber 1 is connected to a cylindrical portion of the chamber 1 above the support platform 2 .
- the nozzle 12 is open toward the ceiling board 7 , and is fed with the source gas via a flow controller 13 .
- Fluorine (F), bromine (Br) or iodine (I) can also be applied as the halogen to be incorporated into the source gas.
- a plurality of the nozzles 12 can be provided in a circumferential direction such that the nozzles 12 are open in two or more different directions in the circumferential direction.
- the status of supply of the source gas (the status of generation of a plasma) can be controlled.
- the locations of the nozzles 12 are not limited to the illustrated embodiment; the nozzles 12 can be provided in a horizontal direction in an upper portion of the chamber 1 , or can be provided in two stages, i.e., in an upper portion and a lower portion of the chamber 1 .
- An etched member 18 made of a metal (Cu) is interposed between the opening at the upper surface of the chamber 1 and the ceiling board 7 . As shown in FIGS. 1 and 2, the etched member 18 is provided with a ring portion 19 fitted to the opening at the upper surface of the chamber 1 .
- a plurality of ( 12 in the illustrated embodiment) protrusions 20 which extend close to the center in the diametrical direction of the chamber 1 and have the same width, are provided in the circumferential direction on the inner periphery of the ring portion 19 .
- the protrusions 20 are integrally or removably attached to the ring portion 19 .
- Notches (spaces) 35 formed between the protrusions 20 are present between the ceiling board 7 and the interior of the chamber 1 .
- the ring portion 19 is earthed, and the plural protrusions 20 are electrically connected together and maintained at the same potential (same potential maintaining means).
- second protrusions 36 shorter in the diametrical direction than the protrusions 20 can be arranged between the protrusions 20 .
- short protrusions can be arranged between the protrusion 20 and the second protrusion 36 .
- a plasma antenna 9 as an antenna member for converting the atmosphere inside the chamber 1 into a plasma, is provided above the ceiling board 7 .
- the plasma antenna 9 is formed in a planar ring shape parallel to the surface of the ceiling board 7 .
- a matching instrument 10 and a power source 11 are connected to the plasma antenna 9 to supply power.
- the etched member 18 has the plurality of protrusions 20 provided in the circumferential direction on the inner periphery of the ring portion 19 , and includes the notches (spaces) 35 formed between the protrusions 20 .
- the protrusions 20 are arranged between the substrate and the ceiling member in a discontinuous state relative to the flowing direction of electricity in the plasma antenna 9 .
- the source gas is supplied through the nozzles 12 to the interior of the chamber 1 , and electromagnetic waves are shot from the plasma antenna 9 into the chamber 1 .
- the Cl 2 gas is ionized to generate a Cl 2 gas plasma (source gas plasma) 14 .
- the etched member 18 an electric conductor, is present below the plasma antenna 9 .
- the Cl 2 gas plasma 14 occurs stably between the etched member 18 and the substrate 3 , namely, below the etched member 18 , under the following action:
- an etching reaction occurs in the etched member 18 made of copper to form a precursor (Cu x Cl y ) 15 .
- the etched member 18 is maintained by the Cl 2 gas plasma 14 at a predetermined temperature (e.g., 200 to 400° C.) higher than the temperature of the substrate 3 .
- the precursor (Cu x Cl y ) 15 formed within the chamber 1 is transported toward the substrate 3 controlled to a temperature lower than the temperature of the etched member 18 .
- the precursor (Cu x Cl y ) 15 transported toward the substrate 3 is converted into only Cu ions by a reduction reaction, and directed at the substrate 3 to form a thin Cu film 16 on the surface of the substrate 3 .
- reaction in this case can be expressed by:
- the source gas has been described, with the Cl 2 gas diluted with, say, He or Ar taken as an example.
- the Cl 2 gas can be used alone, or an HCl gas can also be applied.
- an HCl gas plasma is formed as the source gas plasma, but the precursor formed by etching of the etched member 18 is Cu x Cl y .
- the source gas may be any gas containing chlorine, and a gas mixture of an HCl gas and a Cl 2 gas is also usable.
- the material for the etched member 18 is not limited to copper (Cu), but may be a halide-forming metal, preferably, a chloride-forming metal, such as Ag, Au, Pt, Ta, Ti or W.
- the precursor is a halide (chloride) of Ag, Au, Pt, Ta, Ti or W, and the thin firm formed on the surface of the substrate 3 is a thin film of Ag, Au, Pt, Ta, Ti or W.
- the metal film production apparatus uses the Cl 2 gas plasma (source gas plasma) 14 .
- Cl 2 gas plasma source gas plasma
- the efficiency of the reaction markedly increases, and the film forming speed increases.
- the cost can be decreased sharply.
- the substrate 3 is controlled to a temperature lower than the temperature of the etched member 18 with the use of the temperature control means 6 .
- impurities such as chlorine
- the etched member 18 has the plurality of protrusions 20 provided in the circumferential direction on the inner periphery of the ring portion 19 , and includes the notches (spaces) 35 formed between the protrusions 20 .
- the induced currents generated in the etched member 18 flow in the same direction as the flowing direction of electricity in the plasma antenna 9 , when viewed from the substrate 3 . Therefore, even though the etched member 18 , an electric conductor, exists below the plasma antenna 9 , the electromagnetic waves are reliably thrown from the plasma antenna 9 into the chamber 1 . Consequently, the Cl 2 gas plasma 14 can be stably generated below the etched member 18 .
- a portion of the chamber 1 , where the substrate 3 is disposed, may be partitioned off with a partition member made of an insulator below the nozzles 12 . Many holes may be punched in the partition member, and the precursor (Cu x Cl y ) 15 formed by etching may be transported onto the substrate 3 through the resulting holes. That is, the interior of the chamber 1 can be divided into a site, where the Cl 2 gas plasma 14 is generated, and a site, where the substrate 3 is installed below the nozzles 12 , by the partition member provided with the many holes. By so isolating the substrate 3 from the Cl 2 gas plasma 14 , the substrate 3 is not exposed to the Cl 2 gas plasma 14 , and thus is free from damage from the plasma.
- FIG. 5 shows a schematic side view of the metal film production apparatus for performing the metal film production method according to the second embodiment of the present invention.
- the same members as the members illustrated in FIG. 1 are assigned the same numerals, and duplicate explanations are omitted.
- the metal film production apparatus is the metal film production apparatus shown in FIG. 1 provided that the shape of the etched member has been changed. That is, an etched member 21 made of a metal (Cu) is held between the opening at the upper surface of the chamber 1 and the ceiling board 7 .
- the etched member 21 has a ring portion 22 fitted to the opening at the upper surface of the chamber 1 , the ring portion 22 being in the form of a short cylinder having the same diameter as the diameter of the chamber 1 .
- a plurality of protrusions 23 which extend close to the center in the diametrical direction of the chamber 1 , have the same width, and have a lower surface inclined upward and a thickness progressively decreased in an upward direction, are provided in the circumferential direction on the inner periphery of the ring portion 22 .
- the thickness of the front end of the protrusion 23 is set at about a fourth to fifth of the thickness of the ring portion 22 .
- the ring portion 22 is earthed, and the plural protrusions 23 are electrically connected together and maintained at the same potential (same potential maintaining means). Notches (spaces) are present between the protrusions 23 in the same manner as in the first embodiment.
- a sheath heater 24 is provided in the protrusion 23 , and the temperature of the protrusion 23 is controlled by a thermocouple 25 (sensor) to a predetermined temperature higher than the temperature of the substrate 3 (the action of temperature control means).
- the sheath heater 24 and the thermocouple 25 may be provided in all of the protrusions 23 , or may be provided in the protrusions 23 arranged alternately. Further, the sheath heater 24 and the thermocouple 25 can be provided in the ring portion 22 .
- a source gas is supplied through the nozzles 12 to the interior of the chamber 1 , and electromagnetic waves are shot from the plasma antenna 9 into the chamber 1 .
- the Cl 2 gas is ionized to generate a Cl 2 gas plasma (source gas plasma) 14 .
- the etched member 21 an electric conductor, is present below the plasma antenna 9 .
- the notches (space) are present, there is no flow in a direction in which the flow of electricity in the plasma antenna 9 is canceled out, when the etched member 21 is viewed from the substrate 3 , as in the first embodiment.
- the ring portion 22 is earthed, and the protrusions 23 are maintained at the same potential.
- an etching reaction occurs in the etched member 21 made of copper to form a precursor (Cu x Cl y ) 15 .
- the etched member 21 is maintained by the Cl 2 gas plasma 14 and the sheath heater 24 at a predetermined temperature (e.g., 200 to 400° C.) higher than the temperature of the substrate 3 .
- the precursor (Cu x Cl y ) 15 formed within the chamber 1 is transported toward the substrate 3 controlled to a temperature lower than the temperature of the etched member 21 .
- the precursor (Cu x Cl y ) 15 transported toward the substrate 3 is converted into only Cu ions by a reduction reaction, and directed at the substrate 3 to form a thin Cu film 16 on the surface of the substrate 3 .
- the etched member 21 is controlled by the sheath heater 24 and the thermocouple 25 to a predetermined temperature higher than the temperature of the substrate 3 .
- This control coupled with the temperature control of the substrate 3 by the temperature control means 6 , enables the temperature relationship between the etched member 21 and the substrate 3 to be controlled to temperature conditions optimal for the reduction reaction of the precursor (Cu x Cl y ) 15 .
- the portion of the protrusion 23 beside the ring portion 22 is thick.
- the etching reaction can be performed efficiently by the effective use of the Cl 2 gas plasma 14 existent below.
- FIG. 6 shows a schematic side view of the metal film production apparatus for performing the metal film production method according to the third embodiment of the present invention.
- the same members as the members illustrated in FIG. 1 are assigned the same numerals, and duplicate explanations are omitted.
- the metal film production apparatus is the metal film production apparatus shown in FIG. 1 provided that the nozzles 12 and the flow controllers 13 at the lower portion of the chamber 1 are not provided.
- a gas passage 26 is formed in the center of the protrusion 20 , and gas ejection holes 27 communicating with the gas passage 26 are formed at the front end of the protrusion 20 and at suitable positions in a lower area of the protrusion 20 .
- a source gas is supplied from a flow controller 13 to the gas passage 26 .
- the source gas is supplied to the interior of the chamber 1 through the gas ejection holes 27 of the protrusions 20 , and electromagnetic waves are shot from the plasma antenna 9 into the chamber 1 .
- the Cl 2 gas is ionized to generate a Cl 2 gas plasma (source gas plasma) 14 .
- the etched member 18 an electric conductor, is present below the plasma antenna 9 .
- the ring portion 19 is earthed, and the protrusions 20 are maintained at the same potential.
- an etching reaction occurs in the etched member 18 made of copper to form a precursor (Cu x Cl y ) 15 .
- the etched member 18 is maintained by the Cl 2 gas plasma 14 at a predetermined temperature (e.g., 200 to 400° C.) higher than the temperature of the substrate 3 .
- the precursor (Cu x Cl y ) 15 formed within the chamber 1 is transported toward the substrate 3 controlled to a temperature lower than the temperature of the etched member 18 .
- the precursor (Cu x Cl y ) 15 transported toward the substrate 3 is converted into only Cu ions by a reduction reaction, and directed at the substrate 3 to form a thin Cu film 16 on the surface of the substrate 3 .
- the source gas is supplied to the interior of the chamber 1 through the gas ejection holes 27 of the protrusions 20 .
- the desired amount of the source gas can be supplied to the desired site. Consequently, it becomes possible to promote stabilization of the Cl 2 gas plasma 14 below the etched member 18 .
- the etched member may comprise the protrusions 20 of the third embodiment provided with the gas passage 26 and the gas ejection holes 27 , and the protrusions 23 of the second embodiment provided with the sheath heater 24 and the thermocouple 25 , the protrusions 20 and the protrusions 23 being arranged alternately in the circumferential direction of the etched member. According to this configuration, it becomes possible to realize, at the same time, the optimal control of the temperature relationship between the substrate 3 and the etched member, and the promotion of stabilization of the Cl 2 gas plasma 14 .
- An etched member 29 made of a metal. (Cu) is held between the opening at the upper surface of the chamber 1 and the ceiling member 28 .
- the etched member 29 has a ring portion 30 fitted on the opening at the upper surface of the chamber 1 , and a plurality of protrusions 31 , which extend close to the center in the diametrical direction of the chamber 1 and extend along the bowl-shaped inner surface of the ceiling member 28 , are provided in the circumferential direction on the inner periphery of the ring portion 30 .
- the ring portion 30 is earthed, and the plural protrusions 31 are electrically connected together and maintained at the same potential (same potential maintaining means).
- a sheath heater 24 and a thermocouple 25 may be provided in the protrusion 31 of the etched member 29 .
- Many grooves or depressions may be formed in the underside of the protrusion 31 to create a discontinuous concavity in the surface.
- the source gas is supplied through the nozzle 12 to the interior of the chamber 1 , and electromagnetic waves are shot from the plasma antenna 32 into the chamber 1 .
- the Cl 2 gas is ionized to generate a Cl 2 gas plasma (source gas plasma) 14 .
- the etched member 29 an electric conductor, is present in a portion inside the chamber 1 opposed to the plasma antenna 32 , with the ceiling member 28 being held between the plasma antenna 32 and the etched member 29 .
- the notches (spaces) are present, there is no flow in a direction in which the flow of electricity in the plasma antenna 32 is canceled out, when the etched member 29 is viewed from the substrate 3 , as in the first embodiment.
- the ring portion 30 is earthed, and the protrusions 31 are maintained at the same potential.
- the electromagnetic waves are reliably thrown from the plasma antenna 32 into the chamber 1 . Consequently, the Cl 2 gas plasma 14 is stably generated inside of the etched member 29 .
- an etching reaction occurs in the etched member 29 made of copper to form a precursor (Cu x Cl y ) 15 .
- the etched member 29 is maintained by the Cl 2 gas plasma 14 at a predetermined temperature (e.g., 200 to 400° C.) higher than the temperature of the substrate 3 .
- the precursor (Cu x Cl y ) 15 formed within the chamber 1 is transported toward the substrate 3 controlled to a temperature lower than the temperature of the etched member 29 .
- the precursor (Cu x Cl y ) 15 transported toward the substrate 3 is converted into only Cu ions by a reduction reaction, and directed at the substrate 3 to form a thin Cu film 16 on the surface of the substrate 3 .
- the ceiling member 28 is shaped like a bowl, and the plasma antenna 32 is shaped like a conical ring along the bowl shape of the ceiling member 28 .
- the electromagnetic waves can be shot from around the ceiling member 28 to generate the Cl 2 gas plasma 14 , thereby stabilizing the Cl 2 gas plasma 14 inwardly of the ceiling member 28 .
- the uniformity of the Cl 2 gas plasma 14 inside of the chamber 1 can be achieved by the one power source.
- FIG. 8 shows a schematic side view of the metal film production apparatus for performing the metal film production method according to the fifth embodiment of the present invention.
- the same members as the members illustrated in FIG. 1 are assigned the same numerals, and duplicate explanations are omitted.
- An etched member 33 made of a metal (Cu) is provided between the opening at the upper surface of the chamber 1 and the ceiling member 38 .
- the etched member 33 has a tubular ring portion 34 disposed on the inner periphery of the tubular portion 40 .
- a plurality of protrusions 37 which extend close to the center in the diametrical direction of the chamber 1 , have the same width, and have a lower surface inclined upward and a thickness progressively decreased in an upward direction, are provided in the circumferential direction on the inner periphery of the ring portion 34 .
- the ring portion 34 is earthed, and the plural protrusions 37 are electrically connected together and maintained at the same potential (same potential maintaining means).
- the sheath heater 24 and thermocouple 25 may be provided in the protrusion 37 of the etched member 33 .
- Many grooves or depressions may be formed in the underside of the protrusion 37 to create a discontinuous concavity in the surface.
- the notches (spaces) are present, there is no flow in a direction in which the flows of electricity in the plasma antenna 9 and the coil antenna 41 are canceled out, when the etched member 33 is viewed from the substrate 3 , as in the first embodiment. Furthermore, the ring portion 34 is earthed, and the protrusions 37 are maintained at the same potential. Thus, even though the etched member 33 , an electric conductor, exists, the electromagnetic waves are reliably thrown from the plasma antenna 9 and the coil antenna 41 into the chamber 1 . Consequently, the Cl 2 gas plasma 14 is stably generated inside of the etched member 33 .
- an etching reaction occurs in the etched member 33 made of copper to form a precursor (Cu x Cl y ) 15 .
- the etched member 33 is maintained by the Cl 2 gas plasma 14 at a predetermined temperature (e.g., 200 to 400° C.) higher than the temperature of the substrate 3 .
- the precursor (Cu x Cl y ) 15 formed within the chamber 1 is transported toward the substrate 3 controlled to a temperature lower than the temperature of the etched member 33 .
- the precursor (Cu x Cl y ) 15 transported toward the substrate 3 is converted into only Cu ions by a reduction reaction, and directed at the substrate 3 to form a thin Cu film 16 on the surface of the substrate 3 .
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Analytical Chemistry (AREA)
- Electrochemistry (AREA)
- Chemical Vapour Deposition (AREA)
- Electrodes Of Semiconductors (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/319,458 US7588799B2 (en) | 2001-11-14 | 2005-12-29 | Metal film production apparatus |
US12/511,891 US20090324848A1 (en) | 2001-11-14 | 2009-07-29 | Metal film production apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001-348315 | 2001-11-14 | ||
JP2001348315A JP3727878B2 (ja) | 2001-11-14 | 2001-11-14 | 金属膜作製装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/319,458 Division US7588799B2 (en) | 2001-11-14 | 2005-12-29 | Metal film production apparatus |
Publications (1)
Publication Number | Publication Date |
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US20030089315A1 true US20030089315A1 (en) | 2003-05-15 |
Family
ID=19161154
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/277,207 Abandoned US20030089315A1 (en) | 2001-11-14 | 2002-10-22 | Metal film production apparatus |
US11/319,458 Expired - Fee Related US7588799B2 (en) | 2001-11-14 | 2005-12-29 | Metal film production apparatus |
US12/511,891 Abandoned US20090324848A1 (en) | 2001-11-14 | 2009-07-29 | Metal film production apparatus |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/319,458 Expired - Fee Related US7588799B2 (en) | 2001-11-14 | 2005-12-29 | Metal film production apparatus |
US12/511,891 Abandoned US20090324848A1 (en) | 2001-11-14 | 2009-07-29 | Metal film production apparatus |
Country Status (6)
Country | Link |
---|---|
US (3) | US20030089315A1 (de) |
EP (2) | EP2051282A3 (de) |
JP (1) | JP3727878B2 (de) |
KR (1) | KR100493799B1 (de) |
DE (1) | DE60231100D1 (de) |
TW (1) | TW582052B (de) |
Cited By (4)
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US20090165713A1 (en) * | 2007-12-26 | 2009-07-02 | Samsung Electro-Mechanics Co, Ltd. | Chemical vapor deposition apparatus |
US20110115380A1 (en) * | 2008-05-22 | 2011-05-19 | Yasunori Ando | Plasma generation device and plasma processing device |
US20110126762A1 (en) * | 2007-03-29 | 2011-06-02 | Tokyo Electron Limited | Vapor deposition system |
CN115466942A (zh) * | 2021-06-10 | 2022-12-13 | 东京毅力科创株式会社 | 喷淋头以及基板处理装置 |
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US20030091739A1 (en) * | 2001-11-14 | 2003-05-15 | Hitoshi Sakamoto | Barrier metal film production apparatus, barrier metal film production method, metal film production method, and metal film production apparatus |
US7659209B2 (en) | 2001-11-14 | 2010-02-09 | Canon Anelva Corporation | Barrier metal film production method |
US20030145790A1 (en) * | 2002-02-05 | 2003-08-07 | Hitoshi Sakamoto | Metal film production apparatus and metal film production method |
DE60329344D1 (de) * | 2002-03-08 | 2009-11-05 | Canon Anelva Corp | Verfahren und Vorrichtung zum Herstellen von Metall-Schichten |
EP1881525A4 (de) * | 2005-04-28 | 2011-05-11 | Canon Anelva Corp | Ätzverfahren, verfahren zur herstellung eines dielektrischen films mit niedriger dielektrizitätskonstante, verfahren zur herstellung eines porösen gliedes, ätzsystem und dünnfilm-bildungsgeräte |
JP4852261B2 (ja) * | 2005-05-17 | 2012-01-11 | キヤノンアネルバ株式会社 | シリコン化合物の形成方法 |
JP2007046127A (ja) * | 2005-08-11 | 2007-02-22 | Angstrom Technologies:Kk | 薄膜作製方法及び薄膜作製装置 |
JP4845455B2 (ja) | 2005-09-01 | 2011-12-28 | キヤノンアネルバ株式会社 | 薄膜作製装置及び薄膜作製方法 |
JP4401338B2 (ja) | 2005-09-06 | 2010-01-20 | キヤノンアネルバ株式会社 | 薄膜作製装置及び薄膜作製方法 |
JP4401340B2 (ja) | 2005-09-14 | 2010-01-20 | キヤノンアネルバ株式会社 | 薄膜作製装置及び薄膜作製方法 |
WO2009102056A1 (ja) | 2008-02-15 | 2009-08-20 | Canon Anelva Corporation | 金属埋め込み方法及び凹部に金属を堆積させるための装置 |
JP2009191365A (ja) * | 2009-03-19 | 2009-08-27 | Canon Anelva Corp | 金属膜作製装置及び金属膜作製方法 |
JP2009191366A (ja) * | 2009-03-19 | 2009-08-27 | Canon Anelva Corp | 金属膜作製装置及びキャパシタ製造装置及び強誘電体メモリ製造装置及び金属膜作製方法 |
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2002
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- 2002-11-05 EP EP08021946A patent/EP2051282A3/de not_active Withdrawn
- 2002-11-05 DE DE60231100T patent/DE60231100D1/de not_active Expired - Lifetime
- 2002-11-05 EP EP02024599A patent/EP1313127B1/de not_active Expired - Lifetime
- 2002-11-07 TW TW091132789A patent/TW582052B/zh active
- 2002-11-13 KR KR10-2002-0070328A patent/KR100493799B1/ko not_active IP Right Cessation
-
2005
- 2005-12-29 US US11/319,458 patent/US7588799B2/en not_active Expired - Fee Related
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US6280563B1 (en) * | 1997-12-31 | 2001-08-28 | Lam Research Corporation | Plasma device including a powered non-magnetic metal member between a plasma AC excitation source and the plasma |
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Also Published As
Publication number | Publication date |
---|---|
DE60231100D1 (de) | 2009-03-26 |
JP2003147534A (ja) | 2003-05-21 |
US7588799B2 (en) | 2009-09-15 |
EP2051282A3 (de) | 2011-12-21 |
EP2051282A2 (de) | 2009-04-22 |
US20090324848A1 (en) | 2009-12-31 |
TW200300267A (en) | 2003-05-16 |
JP3727878B2 (ja) | 2005-12-21 |
KR20030040131A (ko) | 2003-05-22 |
KR100493799B1 (ko) | 2005-06-08 |
TW582052B (en) | 2004-04-01 |
US20060110535A1 (en) | 2006-05-25 |
EP1313127B1 (de) | 2009-02-11 |
EP1313127A1 (de) | 2003-05-21 |
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