WO2005093122A1 - 薄膜形成方法および薄膜形成装置 - Google Patents
薄膜形成方法および薄膜形成装置 Download PDFInfo
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- WO2005093122A1 WO2005093122A1 PCT/JP2004/004354 JP2004004354W WO2005093122A1 WO 2005093122 A1 WO2005093122 A1 WO 2005093122A1 JP 2004004354 W JP2004004354 W JP 2004004354W WO 2005093122 A1 WO2005093122 A1 WO 2005093122A1
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- Prior art keywords
- thin film
- substrate
- main surface
- film forming
- fine
- Prior art date
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- 239000010409 thin film Substances 0.000 title claims abstract description 267
- 238000000034 method Methods 0.000 title claims description 76
- 239000000758 substrate Substances 0.000 claims abstract description 202
- 239000000463 material Substances 0.000 claims abstract description 65
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000002887 superconductor Substances 0.000 claims description 29
- 239000010419 fine particle Substances 0.000 claims description 25
- 239000010408 film Substances 0.000 description 47
- 238000010586 diagram Methods 0.000 description 32
- 238000004519 manufacturing process Methods 0.000 description 23
- 230000006866 deterioration Effects 0.000 description 9
- 238000005530 etching Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 238000001451 molecular beam epitaxy Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000608 laser ablation Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- -1 for example Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
-
- 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
- H01J37/34—Gas-filled discharge tubes operating with cathodic sputtering
- H01J37/3402—Gas-filled discharge tubes operating with cathodic sputtering using supplementary magnetic fields
-
- 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
- the present invention relates to a thin film forming method and a thin film forming apparatus, and more particularly to a technique effective when applied to a method of forming a thin film made of an oxide superconducting thin body.
- a method of forming a thin film on a substrate such as a dielectric or silicon includes, for example, converting the material for forming a thin film (hereinafter referred to as a material for forming a thin film) into fine particles, and forming the thin film in the form of fine particles.
- a method of forming an application material by depositing it on the substrate includes, for example, a sputtering method, a chemical vapor deposition (CVD) method, an MBE (Molecular Beam Epitaxy) method, laser-ablation method, vapor deposition method, and the like.
- a thin film forming apparatus used when forming a thin film by the sputtering method or the like generally includes a substrate on which the thin film is formed, and a thin film forming apparatus for generating the particulate thin film forming material. Depending on the positional relationship of the gates, devices are classified into parallel plate type and counter type.
- the first main surface 1A of the substrate 1 and the evening getter 2B are arranged in parallel.
- the target 2B is attached to the force source 3 and supplies power to the force source 3 to cause the target 2B to output the target 2B and the substrate 1 from the target 2B.
- the particulate thin film forming material 2A is ejected.
- the evening get 2B and the evening An electric field is applied between the substrates 1 to accelerate the fine-particle thin film forming material 2A and guide it toward the substrate 1, and the fine-particle thin film forming material 2A is applied to the first main surface 1A of the substrate 1.
- a thin film forming material 2A is deposited to form the thin film 2.
- the substrate 1 is fixed to a heat stage 12 and the back surface of the first main surface 1A of the substrate 1 (hereinafter, referred to as a second main surface). 1) Heat from B side.
- the fine particle-shaped thin film forming material 2A which is accelerated and in a high energy state is perpendicular to the thin film forming surface (the first main surface 1A) of the substrate 1. Collision at an angle close to. Therefore, there is a problem that while the film forming speed of the thin film 2 is high and the production efficiency is high, the damage to the surface of the thin film 2 deposited on the substrate 1 is large. In order to reduce the damage to the surface of the thin film 2, for example, there is a method of reducing the acceleration of the particulate thin film forming material 2 A.
- two targets 2B are arranged so as to face each other in the extension direction of the first main surface 1A of the substrate 1. I have. Also at this time, each of the evening gates 2B is attached to a power source 3 to supply power to the power source 3, and the fine particles thin film forming material 2A is supplied from the evening gate 2B. Pop out.
- the fine-particle thin-film forming material 2A that protrudes from each of the targets 2B gathers between the two opposing targets 2B, for example, between the two targets 2B.
- the fine particle-like thin film forming material 2A When an electric field is applied and the fine particle-like thin film forming material 2A is accelerated and guided on the first main surface 1A of the substrate 1, the fine particles are formed on the first main surface 1A of the substrate 1.
- Thin film forming material 2 A is deposited and The thin film 2 is formed.
- the incident angle when the fine particle-shaped thin film forming material 2A collides with the first main surface 1A of the substrate 1 is as small as about 0 to 45 degrees.
- the fine particle-shaped thin film forming material 2A collides with the first main surface 1A of the substrate 1 suffers little damage. Therefore, the fine-particle thin film forming material 2A can be guided and deposited on the first main surface 1A of the substrate 1 in a state of high energy, and the surface damage can be performed without lowering the production efficiency. It is possible to form the thin film 2 with less number.
- the parallel plate type or the opposed type thin film forming apparatus is used, for example, when manufacturing a microwave device such as an array antenna for GPS (Global Positioning Systems) and a microwave integrated circuit.
- a microwave device such as an array antenna for GPS (Global Positioning Systems) and a microwave integrated circuit.
- a circuit pattern 2C is provided on a first main surface 1A of a substrate 1, and on a second main surface 1B of the substrate 1, Is provided with a ground plane 2D.
- FIG. 19 is a cross-sectional view taken along line EE ′ of FIG.
- the microwave device operates using a change in a magnetic field caused by a leakage electric field generated between the circuit pattern 2C and the ground plane 2D.
- the circuit pattern 2C and the ground plane 2D are oxide superconductors, for example, the surface resistance is smaller than that of a normal conductor, and higher operating characteristics can be obtained. . Therefore, in recent years, various microwave devices using the oxide superconductor have been noted (for example, S. Ohshima, "High-temperature superconducting passive microwave devices, filters and antennas ", Supercond. Sci. Technol., 13 (2000), p.103-108.).
- the microwave device using the oxide superconductor for example, magnesium oxide (M g 0) in the substrate 1, a sapphire (A 1 2 0 3) dielectric substrate is used, such as, the circuit pattern 2
- An oxide superconductor such as YBC0 or BSCC0 is used for C and the ground plane 2D.
- the first main surface 1A and the second main surface 1B of the dielectric substrate 1 The oxide superconductor thin film 2 is formed.
- the parallel plate type or the opposed type thin film forming apparatus is used for forming the thin film 2.
- the target 2 B for example, used to form a YBC0 a one oxide superconductor, YB a 2 C u 3 O x, Y 2 0 3, B A_ ⁇ , C u O, etc. Of material.
- the dielectric substrate 1 is heated to, for example, about 800 ° C.
- the dielectric substrate 1 When forming the thin film 2, for example, after forming the thin film 2 on the first main surface 1A of the dielectric substrate 1, the dielectric substrate 1 is turned over, and the second The thin film 2 on the main surface 1B is formed. At this time, the thin films 2 on the first main surface 1A and the second main surface 1B of the dielectric substrate 1 are, for example, of the target 2B so as to have the same film quality and film thickness.
- the formation and formation are performed under constant conditions in the equipment.
- an etching resist 11 corresponding to the circuit pattern 2C is formed on one of the thin films, for example, the thin film 2 on the first main surface 1A of the dielectric substrate 1. I do. At this time, although not shown, for example, a similar resist is formed on the back surface of the surface on which the etching resist 11 is formed, that is, on the thin film 2 on the second main surface 1B of the dielectric substrate 1. Keep it. Thereafter, unnecessary portions are removed by etching the thin film 2 on the surface on which the etching resist 11 is formed, and the circuit pattern as shown in FIG. Form 2C.
- the substrate 1 on which the thin film 2 is formed is fixed on a heat stage 12 for heating the substrate 1 as shown in FIG. Therefore, when the thin film 2 is formed on both surfaces of the first main surface 1A and the second main surface 1B of the substrate 1 as in the case of manufacturing the microwave device, the thin film 2 is formed one side at a time. There was a problem that it had to be formed.
- the first main surface 1A the first main surface 1A
- the thin film 2 is heated again when the thin film 2 of the second main surface 1B is formed. Therefore, the film quality of the thin film 2 on the first main surface 1A may change (degrade).
- the oxide superconductor thin film 2 when the oxide superconductor thin film 2 is formed, the chemical quality of the oxide superconductor is poor, so that the film quality of the first thin film 2 formed tends to change. If the film quality of the oxide superconductor thin film 2 changes, physical properties (characteristics) assumed in advance cannot be obtained, resulting in a problem that the characteristics of the device described above deteriorate.
- the film quality and thickness of the thin film 2 can be made uniform. It is difficult to heat the substrate 1 so that the entire temperature becomes uniform.
- the size of the substrate 1 has been increasing, and it has become difficult to make the temperature of the entire substrate 1 uniform. At this time, for example, as shown in FIG.
- the conventional thin film forming method has a problem that it is difficult to make the film quality of the thin film 2 of the first main surface 1A and the thin film 2 of the second main surface 1B of the substrate 1 uniform.
- the thin film when the thin film is formed using a material that is composed of a plurality of types of atoms, such as the oxide superconductor, and the composition ratio of each atom greatly affects physical properties, when the thin film is formed one by one, The difference in film quality between the thin film 2 on the first main surface 1A of the substrate 1 and the thin film 2 on the second main surface 1B tends to increase. For this reason, for example, a difference occurs between the electrical characteristics of the circuit pattern 2C and the electrical characteristics of the ground plane 2D, and there has been a problem that the operation of the device becomes unstable.
- an object of the present invention is to reduce a change (deterioration) in film quality when forming a thin film on the first main surface of the substrate and the back surface (second main surface) thereof.
- the film quality in the thin film on the first main surface and the thin film on the second main surface is reduced.
- the purpose is to reduce variation.
- the present invention provides a method for forming a thin film on a first main surface of a substrate and a back surface (a second main surface) thereof, wherein the quality of the thin film on the first main surface and the thin film on the second main surface vary.
- the aim is to reduce emissions.
- the change (deterioration) and variation in the film quality of the thin film are reduced, and the formation efficiency is improved. It is aimed at. Disclosure of the invention
- a particulate thin film forming material is generated, the particulate thin film forming material is guided on a main surface of a heated substrate, and the particulate thin film forming material is converted to a main surface of the substrate.
- the fine-particle thin film-forming material can be guided on the first main surface and the second main surface of the substrate while heating while exposing both surfaces of the substrate. . Therefore, a thin film can be simultaneously formed on both the first main surface and the second main surface of the substrate.
- thin films can be simultaneously formed on both the first main surface and the second main surface of the substrate, a change (deterioration) in film quality due to a change in time or the like can be reduced.
- thin films can be simultaneously formed on both the first main surface and the second main surface of the substrate, it is possible to reduce variations in film quality and film thickness in the thin films formed on the respective main surfaces. Can be.
- the film quality of the thin film formed on the first main surface and the thin film formed on the second main surface can be improved. Can be reduced.
- a thin film is simultaneously formed on both the first main surface and the second main surface of the substrate. Therefore, the time and energy consumption required for forming the thin film can be reduced. As a result, production efficiency can be improved and manufacturing costs can be reduced.
- the temperature distribution of each main surface of the substrate can be made uniform. It is easy to make the quality and thickness of the thin film formed on each main surface uniform.
- the present invention provides a method for depositing a fine-grained thin-film forming material, a force source for generating a fine-grained thin-film forming material from the fine-grained thin-film forming material, and a fine-grained thin-film forming material.
- a thin film forming apparatus comprising: a support member for supporting a substrate; and a heater for heating the substrate supported by the support member, wherein the support member includes a first main surface of the substrate and a back surface thereof (hereinafter, a second main surface). The substrate is supported so that the main surface is exposed, and the fine particles are generated in the direction of extension of the main surface of the substrate supported by the support member.
- the heat sink is disposed so as to face each of the first main surface and the second main surface of the substrate supported by the support member.
- the film quality of the thin film formed on the first main surface and the thin film formed on the second main surface can be improved. Can be reduced. Further, since a thin film can be simultaneously formed on both the first main surface and the second main surface of the substrate, The time and energy consumption required for forming a film can be reduced. Therefore, production efficiency can be improved and manufacturing costs can be reduced.
- the heater includes an annular first heater and a second heater provided inside a ring of the first heater.
- the distance to the substrate is shorter than the distance from the second heater to the substrate, the temperature at the outer peripheral portion and the temperature near the center of the substrate are made uniform.
- the support member includes a rotation mechanism that rotates the substrate around a direction of a normal to a main surface of the substrate as a rotation axis. By rotating the substrate, it is easy to equalize the temperature of the entire substrate even when the output varies from region to region of the heater.
- the support member may include, for example, a substrate holder that integrally supports a plurality of substrates, and a holder support member that supports the substrate holder.
- a substrate holder that integrally supports a plurality of substrates
- a holder support member that supports the substrate holder.
- the thin film forming method and the thin film forming apparatus of the present invention can be applied to various kinds of thin film formation irrespective of the type of the substrate and the material for forming the thin film.
- the chemical stability of YBC0, BSCC0, etc. It is preferably applied when forming a thin film of an oxide superconductor having poor properties.
- the target is made of a material used for forming an oxide superconductor. Since the oxide superconductor has poor chemical stability, a thin film is simultaneously formed on both the first main surface and the second main surface of the substrate, so that the film quality changes due to a time change. ) And variations can be reduced.
- an oxide superconductor thin film such as YBC0 or BSCC0 is manufactured by applying the thin film forming method (1) and the thin film forming apparatus (2). This can reduce variations in the operating characteristics of the device.
- FIG. 1 is a schematic diagram for explaining the principle of a thin film forming method according to one embodiment of the present invention.
- FIG. 2 is a diagram illustrating the function and effect of the thin film forming method of the present embodiment.
- FIG. 3 is a diagram illustrating the function and effect of the thin film forming method of the present embodiment.
- FIG. 4 is a schematic diagram showing a schematic configuration of a thin film forming apparatus for realizing the thin film forming method of the present embodiment, and is a front view of the entire apparatus.
- FIG. 5 is a schematic diagram showing a schematic configuration of a thin film forming apparatus for realizing the thin film forming method according to the present embodiment, and is a left side view taken along line AA ′ of FIG.
- FIG. 6 is a schematic diagram showing a schematic configuration of a thin film forming apparatus for realizing the thin film forming method of the present embodiment, and is a plan view showing a configuration of a substrate holder.
- FIG. 7 is a schematic diagram showing a schematic configuration of a thin film forming apparatus that realizes the thin film forming method of the present embodiment, and is a cross-sectional view taken along line BB ′ of FIG.
- FIG. 8 is a schematic diagram showing a schematic configuration of a thin film forming apparatus for realizing the thin film forming method of the present embodiment, and is a front view showing a configuration of the heater.
- FIG. 9 is a schematic diagram showing a schematic configuration of a thin film forming apparatus for realizing the thin film forming method of the present embodiment, and is a cross-sectional view taken along line CC ′ in FIG.
- FIG. 10 is a schematic diagram showing a schematic configuration of a thin film forming apparatus for realizing the thin film forming method of the present embodiment, and is a diagram for explaining the operation and effect of a heater.
- FIG. 11 is a schematic diagram for explaining an application example of the thin film forming method of the present embodiment, and is a plan view showing an example of the configuration of a microwave device.
- FIG. 12 is a schematic diagram for explaining an application example of the thin film forming method of the present embodiment, and is a cross-sectional view taken along line DD ′ of FIG.
- FIG. 13 is a schematic diagram for explaining an application example of the thin film forming method of the present embodiment, and is a diagram for explaining the operation of the microwave device.
- FIG. 14 is a schematic view for explaining an application example of the thin film forming method of the present embodiment, and is a cross-sectional view for explaining a method for manufacturing a microwave device.
- FIG. 15 is a schematic view for explaining an application example of the thin film forming method of the present embodiment, and is a cross-sectional view for explaining a method for manufacturing a microwave device.
- FIG. 16 is a schematic diagram for explaining a conventional thin film forming method, and is a diagram showing a forming method using a parallel plate type thin film forming apparatus.
- FIG. 17 is a schematic diagram for explaining a conventional thin film forming method, and is a diagram showing a forming method using a facing thin film forming apparatus.
- FIG. 18 is a schematic diagram for explaining an application example of a conventional thin film forming method, and is a plan view showing an example of a configuration of a microwave device.
- FIG. 19 is a schematic diagram for explaining an application example of the conventional thin film forming method, and is a cross-sectional view taken along line EE in FIG.
- FIG. 20 is a schematic diagram for explaining an application example of a conventional thin film forming method, and is a diagram for explaining an operation of a microwave device.
- FIG. 21 is a schematic view for explaining an application example of a conventional thin film forming method, and is a cross-sectional view for explaining a method for manufacturing a microwave device.
- FIG. 22 is a schematic view for explaining an application example of a conventional thin film forming method, and is a cross-sectional view for explaining a method for manufacturing a microwave device.
- FIG. 23 is a diagram for explaining a problem of a conventional thin film forming method.
- FIG. 24 is a diagram for explaining a problem of a conventional thin film forming method.
- FIG. 25 is a diagram for explaining the problem of the conventional thin film forming method.
- the first main surface of the substrate is supported by heating the substrate so that the surface on which the thin film of the substrate is formed, in other words, the first main surface and the back surface thereof, are exposed. And forming a thin film on the second main surface at the same time.
- FIGS. 1 to 3 are schematic diagrams for explaining a thin film forming method according to an embodiment of the present invention.
- FIG. 1 is a diagram illustrating a principle
- FIGS. 2 and 3 are diagrams illustrating an operation and effect. .
- 1 is the substrate
- 1 A is the first main surface of the substrate
- 1 B is the second main surface of the substrate
- 2 A is the thin film material in the form of fine particles
- 2 B is the target
- 3 is the force source
- the thin film forming method of the present embodiment is, for example, a method of forming using a sputtering method.As shown in FIG. 1, the extension of the first main surface 1A of the substrate 1 on which the thin film is formed is as shown in FIG. In the direction, a particulate thin film forming material 2A is generated. At this time, the fine-particle thin film forming material 2A is generated from the evening gate 2B attached to the force source 3.
- the substrate 1 is supported so that the first main surface 1A and its wedge surface (hereinafter, referred to as a second main surface) 1B are exposed. Further, at this time, the heater 4 is arranged so as to face the first main surface 1A and the second main surface 1B of the substrate 1, and the substrate i is heated.
- the particulate thin film forming material 2A generated from the target 2B is transferred between the substrate 1 and each of the heaters 4, that is, as shown in FIG.
- the substrate 1 is guided on the first main surface 1A and the second main surface 1B, both surfaces of the first main surface 1A and the second main surface 1B of the substrate 1 are simultaneously thinned.
- a film can be formed.
- the film quality and thickness of the formed thin film vary. Therefore, when forming the thin film, as shown in FIG. 1, it is preferable to form the thin film while rotating the substrate 1 around the normal direction of the first main surface 1A of the substrate 1 as a rotation axis. By rotating the substrate 1, at a certain time, even if the temperature near the point XA of the substrate 1 is low as shown in FIG. 2, after a certain time has passed, as shown in FIG. Then, the temperature near the point XA of the substrate 1 is high, and the temperature near the point XB is low.
- the substrate 1 alternately and continuously repeats the states shown in FIGS. Therefore, uneven heating of the substrate 1 can be reduced, and the temperature of the entire substrate 1 can be easily made uniform. Further, by rotating the substrate 1, even if the density of the fine particle-shaped thin film forming material 2A is non-uniform, it is less likely to be affected by the unevenness. Therefore, it is possible not only to form thin films on both the first main surface 1A and the second main surface 1B of the substrate 1 at the same time, but also to change the film quality (deterioration) of each formed thin film and Variations and variations in film thickness can be reduced.
- FIG. 4 to 10 are schematic views showing a schematic configuration of a thin film forming apparatus for realizing the thin film forming method of the present embodiment
- FIG. 4 is a front view of the entire apparatus
- FIG. 6 is a plan view showing the configuration of the substrate holder
- FIG. 7 is a cross-sectional view taken along the line BB ′ of FIG. 6
- FIG. 8 is a front view showing the configuration of the heater
- FIG. 10 is a diagram for explaining the operation and effect of the heat exchanger.
- hatching parallel hatching
- 4A is the first heater
- 4B is the second heater
- 4C is the heating wire
- 4D is the through hole
- 5A is the substrate holder (support member)
- 5B is the heater.
- 6 is a force source mounting member
- 6A is an angle adjustment section
- 7 is a chamber
- 7A is a first exhaust port
- 7B is a second exhaust port
- 7C is a gas introduction.
- the pipe, 8 is the drive shaft
- 9 is the differential gear
- 10 is the motor gear.
- the thin film forming apparatus for realizing the thin film forming method of the present embodiment includes a target 2B made of a material for forming a thin film, and a fine particle thin film formed from the target 2B.
- the power source 3 is fixed to the chamber 7 by the power source mounting member 6.
- the force source mounting member 6 is provided with, for example, an angle adjusting unit 6A, and the fine particle-forming material 2A protruding from the target 2B is applied to the substrate 1.
- the incident angle should be adjustable.
- the support members 5A and 5B are a substrate holder 5A that integrally supports three substrates 1 and a substrate holder 5A. It is composed of a holder supporting member 5B supporting A. this At this time, as shown in FIG. 7, for example, the substrate holder 5A is sandwiched between the substrate 1 with a first holder 501A and a second holder 502A, and fastened and fixed with screws 503A. I have. At this time, the substrate holder 5A supports the substrate 1 so that the first main surface 1A and the second main surface 1B of the substrate 1 are exposed.
- the holder supporting member 5B is connected to the motor 10 by a drive shaft 8 and a differential gear 9, and the substrate holder 5A Can be rotated with the normal direction of the first main surface 1A of the substrate 1 as a rotation axis.
- the heater 4 is disposed so as to sandwich the substrate holder 5A, and faces each of the first main surface 1A and the second main surface 1B of the substrate 1. They are in line.
- each of the heaters 4 is, for example, an annular first heater 4A for heating an outer peripheral portion of the substrate holder 5A, and an inner side of the first heater 4A, and the substrate holder It consists of a second heater 4B, which heats the center of 5A.
- a heating wire 4C is stretched around the first heater 4A and the second heater 4B, as shown in FIGS. 8 and 9, for example. Also, as shown in FIG.
- the heater 4 has a distance L 1 from the first heater 4 A to the substrate 1 that is equal to a distance L 2 from the second heater 4 B to the substrate 1. As close as possible. As described above, by adjusting the pattern of the heating wire 4C and the distance between the first heater 4A and the second heater 4B, as shown in FIG. The temperature on each main surface of the holder 5A) can be made uniform.
- the heater 4 is provided with a through hole 4D through which the drive shaft 8 passes as shown in FIG.
- the distance between the substrate holder 5A and the drive shaft 4 can be adjusted along the drive shaft 8.
- the inside of the chamber is sucked out from the vacuum evacuation ports 7A and 7B of the chamber 7, and a vacuum is created while introducing argon gas or oxygen gas from the gas introduction pipe 7C.
- the substrate 1 attached to the substrate holder 5A is heated by the heater 4.
- the fine particle-shaped thin film forming material 2A is generated from the target 2B and guided between the substrate holder 5A and the heater 4. It is deposited on the first main surface 1A and the second main surface 1B of the substrate 1.
- FIGS. 11 to 15 are schematic diagrams for explaining an application example of the thin film forming method according to the present embodiment
- FIG. 11 is a plan view showing an example of the configuration of a microwave device.
- FIG. 12 is a cross-sectional view taken along line D—D ′ of FIG. 11
- FIG. 13 is a diagram for explaining the operation of the microwave device
- FIGS. 14 and 15 are manufacturing methods of the microwave device.
- FIG. 6 is a cross-sectional view for explaining the method.
- a circuit pattern 2C is provided on a first main surface 1A of a substrate 1, and a second main surface of the substrate 1 is provided. This is used when manufacturing a device in which a ground plane 2D is provided on the surface 1B.
- the device include an array antenna, a microwave integrated circuit, and a filter.
- the device operates using a change in a magnetic field generated due to a leakage electric field generated between the circuit pattern 2C and the ground plane 2D.
- the circuit pattern 2 When C and the ground plane 2D are oxide film superconductors, for example, the surface resistance is smaller than that of a normal conductor, and higher operation characteristics can be obtained. Therefore, in recent years, various devices using the oxide superconductor have attracted attention.
- the substrate 1 used is a dielectric substrate, such as M g 0, A 1 2 0 3, to the circuit pattern 2 C Contact and the ground plane 2 D Is made of an oxide superconductor such as YBC0 or BSCC0.
- the first main surface 1A and the second main surface 1B of the dielectric substrate 1 A thin film 2 of oxide superconductor is formed.
- the thin film forming apparatus described in the present embodiment is used.
- the target 2 B for example, YB a 2 C u 3 0 x used in the form forming the YBC0 is a kind of oxide superconductor, Y 2 0 3, B a O, C u O , etc.
- the material is used.
- the substrate 1 is heated, for example, to about 800 ° C.
- an etching resist 11 corresponding to the circuit pattern 2C is formed on the thin film 2 formed on the first main surface 1A of the substrate 1. I do.
- a similar resist is also formed on the back surface of the surface on which the etching resist 11 is formed, that is, on the thin film 2 on the second main surface 1B of the substrate 1. .
- unnecessary portions are removed by etching the thin film 2 on the surface on which the etching resist 11 has been formed, thereby forming the circuit pattern 2C as shown in FIG.
- the thin film 2 since the thin film 2 was formed on each side, for example, the degree of time change of the thin film 2 formed first time and the thin film 2 formed second time are different. Film quality often differs It was. In particular, in the case of the thin film 2 formed using the oxide superconductor, the oxide superconductor has poor chemical stability, and the film quality is significantly deteriorated and uneven. This had a significant effect on the degradation of the operating characteristics of the manufactured microwave device. On the other hand, in the thin film forming apparatus of the present embodiment, the thin film 2 can be simultaneously formed on both the first main surface 1A and the second main surface 1B of the substrate 1, and the thin film 2 on each main surface can be formed. It is possible to reduce the deterioration and the variation of the film quality. Therefore, the operating characteristics of the manufactured microwave device can be stabilized.
- the thin film 2 can be simultaneously formed on both the first main surface 1A and the second main surface 1B of the substrate 1. . Therefore, it is possible to reduce deterioration and variation in film quality due to the difference in the degree of time change.
- the thin film 2 can be simultaneously formed on both the first main surface 1A and the second main surface 1B of the substrate 1, the thin film 2 and the second main surface on the first main surface 1A are formed. Variations in the film quality of the thin film 2 on 1 B can be reduced.
- the substrate 1 (substrate holder 5A) is heated while being rotated, it is easy to make the temperature of the entire substrate 1 uniform.
- the particulate thin film material 2A is deposited while rotating the substrate 1 (substrate holder 5A), the particulate thin film material 2A is less affected by the variation in density. Therefore, variations in the film quality and thickness of the thin film 2 on the first main surface 1A and the thin film 2 on the second main surface 1B of the substrate 1 can be reduced.
- the thin film 2 can be formed simultaneously on both the first main surface 1A and the second main surface 1B of the substrate 1, the time and energy required for forming the thin film 2 are increased. The consumption can be reduced. Therefore, the manufacturing cost of the above-described film can be reduced, and the manufacturing cost of the device can also be reduced. Further, since the thin film 2 can be formed simultaneously on both the first main surface 1A and the second main surface 1B of the substrate 1, for example, when the thin film 2 of the oxide superconductor is formed, In addition, it is possible to reduce the deterioration of the film quality due to the time change. Therefore, the operating characteristics of the microwave device using the oxide superconductor can be stabilized.
- FIGS. 6 and 7 an example has been described in which three substrates 1 are attached to the substrate holder 5A, but the present invention is not limited to this. It goes without saying that any number of boards 1 can be attached to A. At this time, by changing the configuration of the substrate holder 5A, the thin film 2 can be formed on one large-sized substrate 1. Therefore, even in the case of the large-sized substrate 1, it is possible to reduce the deterioration and variation in the film quality and the variation in the film thickness.
- an apparatus for performing sputtering has been described as an example.
- the present invention is not limited to this, and a CVD (chemical vapor deposition) method using the same principle, an MBE (molecule lar It can also be applied to the beam epoxie method, laser ablation method, vapor deposition method, and other thin film forming methods.
- a method of forming a thin film using an oxide superconductor has been described.
- the present invention is not limited to this. Regardless, for example, the present invention can be applied to the case of forming a thin film of a semiconductor or a metal.
- the distance L1 from the first heater 4A to the substrate holder 5B is set closer to the distance L2 from the second heater 4B to the substrate holder 5A.
- the temperature distribution on the substrate 1 is made uniform by using the method described above. However, the temperature distribution is not limited to this. Distribution may be uniform Industrial applicability
- the thin film forming method and the thin film forming apparatus according to the present invention are useful as a method for forming a thin film by depositing a fine particle material on a substrate. Suitable for manufacture of microwave devices.
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PCT/JP2004/004354 WO2005093122A1 (ja) | 2004-03-26 | 2004-03-26 | 薄膜形成方法および薄膜形成装置 |
JP2006511370A JPWO2005093122A1 (ja) | 2004-03-26 | 2004-03-26 | 薄膜形成方法および薄膜形成装置 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6026661A (ja) * | 1983-07-25 | 1985-02-09 | Matsushita Electric Ind Co Ltd | 薄膜製造装置 |
JPH0737827A (ja) * | 1993-07-19 | 1995-02-07 | Tokyo Electron Ltd | 熱処理装置 |
JPH0878338A (ja) * | 1994-09-05 | 1996-03-22 | Fujitsu Ltd | 半導体の製造装置 |
JP2000045072A (ja) * | 1998-07-27 | 2000-02-15 | Komatsu Ltd | 成膜装置、方法及び成膜製品 |
US6280580B1 (en) * | 1998-11-23 | 2001-08-28 | Electronics And Telecommunications Research Institute | Method for manufacturing a double-sided high-temperature superconducting oxide thin film having large area |
-
2004
- 2004-03-26 WO PCT/JP2004/004354 patent/WO2005093122A1/ja active Application Filing
- 2004-03-26 JP JP2006511370A patent/JPWO2005093122A1/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6026661A (ja) * | 1983-07-25 | 1985-02-09 | Matsushita Electric Ind Co Ltd | 薄膜製造装置 |
JPH0737827A (ja) * | 1993-07-19 | 1995-02-07 | Tokyo Electron Ltd | 熱処理装置 |
JPH0878338A (ja) * | 1994-09-05 | 1996-03-22 | Fujitsu Ltd | 半導体の製造装置 |
JP2000045072A (ja) * | 1998-07-27 | 2000-02-15 | Komatsu Ltd | 成膜装置、方法及び成膜製品 |
US6280580B1 (en) * | 1998-11-23 | 2001-08-28 | Electronics And Telecommunications Research Institute | Method for manufacturing a double-sided high-temperature superconducting oxide thin film having large area |
Non-Patent Citations (1)
Title |
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EOM C.B. ET AL: "In situ grown YBa2CuO7-d thin films from singletarget magnetron sputtering", APPLIED PHYSICS LETTERS, vol. 55, no. 6, 7 August 1989 (1989-08-07), pages 595 - 597, XP000080864 * |
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