WO2008001723A1 - Dispositif de fabrication d'un film mince et procédé de fabrication d'un film mince - Google Patents
Dispositif de fabrication d'un film mince et procédé de fabrication d'un film mince Download PDFInfo
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- WO2008001723A1 WO2008001723A1 PCT/JP2007/062701 JP2007062701W WO2008001723A1 WO 2008001723 A1 WO2008001723 A1 WO 2008001723A1 JP 2007062701 W JP2007062701 W JP 2007062701W WO 2008001723 A1 WO2008001723 A1 WO 2008001723A1
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- gas
- thin film
- film forming
- forming apparatus
- plasma discharge
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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
- C23C16/54—Apparatus specially adapted for continuous coating
- C23C16/545—Apparatus specially adapted for continuous coating for coating elongated substrates
-
- 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
- C23C16/4412—Details relating to the exhausts, e.g. pumps, filters, scrubbers, particle traps
-
- 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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- 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
- C23C16/50—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 using electric discharges
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/47—Generating plasma using corona discharges
- H05H1/473—Cylindrical electrodes, e.g. rotary drums
Definitions
- the present invention relates to a thin film forming apparatus and a thin film forming method.
- the parallel plate electrode can be easily manufactured and the distance between the electrodes can be easily set, and the electrode area can be increased. Therefore, the film to be processed transferred between the electrodes is sequentially processed in the transfer direction to form a film.
- the plasma processing gas density can be made higher than that of the low-pressure plasma described above, and the method is excellent in processing efficiency.
- the key to commercialization is the reduction of equipment costs due to large equipment costs such as electrodes, or the reduction of costs by increasing the processing capacity. In order to increase the processing capacity, if the electric field strength is increased, such as increasing the plasma density or increasing the electric field strength, there is a risk of concentrated discharge of a large current due to the arc.
- the electrode is a fixed electrode, it is constantly exposed to the flow of a mixed gas for film formation, and plasma discharge continues, so the surface of the electrode gradually becomes contaminated and finally Has a problem in that it changes the discharge state, gives variations to the performance of the formed film and the treated surface, and in the case of remarks, causes defects that are clearly recognized in appearance such as streaks and unevenness.
- Patent Document 2 describes that an introduction gas leakage prevention skirt is provided. However, a stagnant component is generated between the supply port and the discharge space, or the discharge space is formed. There was no disclosure of technology for the problem of raw materials directly adhering to the substrate before entering.
- Patent Document 1 Japanese Patent Laid-Open No. 2003-93870
- Patent Document 2 Japanese Patent Laid-Open No. 2001-279457
- the present invention has been made to solve the above-described problems, and is capable of forming a thin film having a good film quality when the film is formed by a discharge plasma processing method.
- An object is to provide a forming apparatus and a thin film forming method.
- a thin film forming apparatus for forming a thin film on a surface of a substrate to be continuously transferred by plasma discharge treatment under atmospheric pressure or a pressure in the vicinity thereof,
- a pair of roll electrodes facing and rotating with a predetermined gap
- a processing gas discharge means having a processing gas discharge port for discharging a processing gas under atmospheric pressure or a pressure in the vicinity thereof to the base material passing through the plasma discharge means in the direction of the predetermined gap;
- An auxiliary gas discharge port provided in the processing gas discharge means for discharging an auxiliary gas having an inert gas
- Gas discharge means for discharging the gas after the processing gas and the auxiliary gas have passed through the plasma discharge means
- a thin film forming apparatus comprising:
- the auxiliary gas discharge ports are respectively provided in the axial direction so as to face the surfaces of the pair of roll electrodes, and a small amount of each auxiliary gas discharged from the auxiliary gas discharge port.
- the direction when the auxiliary gas is discharged to one of the pair of roll electrodes is an angle formed with the direction when the processing gas is discharged toward the predetermined gap 0 is 0 ⁇ ⁇ 90 °
- processing gas contains an inert gas of 90 Vol% or more and oxygen or hydrogen.
- a frequency of a power source for applying a voltage to the pair of roll electrodes is more than 80 kHz and 150 MHz or less.
- a pair of roll electrodes facing and rotating with a predetermined gap
- a processing gas discharge step having a processing gas discharge port for discharging a processing gas under atmospheric pressure or a pressure in the vicinity thereof to the base material passing through the plasma discharge step in the direction of the predetermined gap;
- An auxiliary gas discharge port provided in the process gas discharge step for discharging an auxiliary gas having an inert gas
- the auxiliary gas blowing means for blowing out the auxiliary gas for suppressing the backflow and retention of the processing gas since the auxiliary gas blowing means for blowing out the auxiliary gas for suppressing the backflow and retention of the processing gas is provided, a thin film having good film quality can be obtained.
- FIG. 1 A schematic of a plasma discharge treatment apparatus that uses a roll electrode to reciprocate a substrate.
- FIG. 2 A diagram showing an angle formed by a direction in which the processing gas blows out and a direction in which the auxiliary gas blows out.
- FIG. 2 is a diagram schematically showing a plasma discharge processing apparatus that performs processing by reciprocating a substrate using a roll electrode, as an example of the plasma discharge processing apparatus used.
- This apparatus has a pair of roll electrodes 10A and 10B, and a power supply 80 capable of applying a voltage for plasma discharge is connected to these roll electrodes 10A and 10B via voltage supply means 81 and 82. Yes.
- the roll electrodes 10A and 10B are rotating electrodes that can rotate while winding the substrate F. is there.
- the discharge unit 100 is maintained at or near atmospheric pressure, and the process gas G is supplied from the process gas supply unit 30, and plasma discharge is performed in the discharge unit 100.
- Pre-process or original roll force The base material F to be supplied is brought into close contact with the roll electrode 10A by the guide roll 20 and is rotated and transferred in synchronism, and plasma is generated by the processing gas at the discharge part 100 at atmospheric pressure or in the vicinity thereof. Discharge treatment is performed.
- the processing gas supply unit 30 has a slit shape that is the same as or slightly wider than the width of the base material, or pipe-shaped outlets are arranged side by side so as to be equivalent to the width of the base material.
- the processing gas G should be introduced into the discharge part 100 at a uniform flow rate or flow velocity over the entire width direction. -And the processed substrate F is turned back (also called U-turn roll) 11A, 11B, 11C and 1 ID, transferred in the opposite direction, and held by the roll electrode 10B, and again the plasma discharge treatment in the discharge unit 100 And is taken up or transferred to the next stage (neither shown) via the guide roll 21.
- the treated gas G ′ is exhausted from the exhaust port 40.
- the exhaust gas flow rate from the discharge port 40 is slightly larger than the flow rate from the processing gas supply unit 30.
- the side surfaces of the roll electrodes 10A and 10B of the discharge unit 100 may be shielded, or the entire apparatus may be surrounded and filled with a rare gas, nitrogen gas, or processing gas G.
- processing gas discharge means 30 will be further described.
- the processing gas G is blown out in the direction of the gap between the roll electrodes 10A and 10B. At that time, the gap between the roll electrodes is narrow, and the entire amount of the blown processing gas cannot necessarily pass through the gap, and some The gas leaks from the gap between the processing gas supply means 30 and the roll electrode and blows out to the outside, so that an extra processing gas is required and the processing chamber is filled. Also, depending on the type of processing gas, there is a concern that it may adversely affect the human body.
- the auxiliary gas CG is discharged to the processing gas discharge means 30 as a means for blocking the leaked processing gas in substantially the same direction as the processing gas discharge direction. Provide a discharge port part designed to do this.
- the processing gas G is a discharge gas and a thin film forming gas
- the discharge gas is an inert gas such as a rare gas or nitrogen
- the thin film forming gas is a raw material that is a raw material of the deposited film. It consists of raw material gas and reaction gas that promotes decomposition.
- Auxiliary gas CG is rare gas Alternatively, it is an inert gas such as nitrogen, or a rare gas or an inert gas such as nitrogen, and a reactive gas force that promotes decomposition, and does not include a source gas that becomes a source of a film.
- the auxiliary gas CG preferably has the same composition as the discharge gas in the processing gas or the same composition as the discharge gas and the reactive gas.
- the flow rate when the auxiliary gas is discharged is preferably equal to or more than 5 times the flow rate when the processing gas is discharged from the discharge port of the processing gas discharge means. If it is less than this, the effect of the auxiliary gas is small, and if it is 5 times or more, it becomes difficult to supply the treatment gas to the discharge space.
- an angle formed by the direction in which the auxiliary gas CG is discharged to the roll electrode and the discharge direction in which the processing gas G is discharged in the direction of a predetermined gap where the pair of roll electrodes face each other is 0 (by setting the angle between 0 ⁇ ⁇ ⁇ 90 °, the processing gas G can be prevented from entering the gap area between the auxiliary gas discharge port and the surface of the roll electrode. Furthermore, it has been experimentally determined that preferably 0 ⁇ 0 to 60 °, more preferably 0 ⁇ 30 °. This is because when the angle exceeds 90 °, the component of the counter force auxiliary gas CG decreases in the discharge space, and the effect of the invention cannot be obtained.
- auxiliary gas CG as well as the processing gas supply unit, it is preferable to have a slit shape that is equal to or slightly wider than the width of the base material, or pipe-shaped air outlets are arranged side by side. Even if it is arranged to be equal to the width, it should be discharged at a uniform flow rate or flow velocity throughout the width direction!
- the processing gas discharge means 30 for discharging the processing gas G and the auxiliary gas CG is made of ceramic such as alumina, or insulating material such as resin, and particularly heat-resistant resin such as PEEK (polyether ether ketone). Is preferred.
- the roll electrode is preferably made of a conductive base material such as metal, and the surface thereof is coated with a solid dielectric.
- solid dielectrics include plastics such as polytetrafluoroethylene and polyethylene terephthalate, glass, silicon dioxide, metal oxides such as acid aluminum, acid zirconium, acid titanium, and barium titanate. List of composite metal oxides You can. Particularly preferred is a ceramic-coated dielectric that has been ceramic-sprayed and then sealed with an inorganic material.
- the conductive base material such as a metal of the electrode
- stainless steel is preferable from the viewpoint of force processing that can include metals such as silver, platinum, stainless steel, aluminum, and iron.
- silicate glass As the lining material, silicate glass, borate glass, phosphate glass, germanate glass, tellurite glass, aluminate glass, vanadate glass, etc. are preferred. Of these, borate-based glass is more preferably used because it is easy to process.
- the temperature of the electrode used in the present embodiment such as heating or cooling, as necessary.
- a liquid is supplied into the roll to control the temperature of the electrode surface and the temperature of the substrate.
- an insulating material such as distilled water or oil is preferable.
- the temperature of the substrate varies depending on the processing conditions. Usually, the temperature is preferably room temperature to 200 ° C, more preferably room temperature to 120 ° C.
- the surface of the roll electrode is required to have high smoothness because the substrate is in close contact and the substrate and the electrode are transferred and rotated in synchronization.
- Rmax of the surface roughness of the belt electrode and roll electrode used in the present embodiment is preferably 10 ⁇ m or less, more preferably 8 ⁇ m or less, and particularly preferably 7 ⁇ m or less.
- Ra is preferably 0.5 ⁇ m or less, more preferably 0.1 ⁇ m or less.
- the predetermined gap between the pair of roll electrodes is determined in consideration of the thickness of the solid dielectric, the magnitude of the applied voltage, the purpose of using plasma, the shape of the electrode, and the like. Is done.
- the distance between the electrode surfaces is preferably 0.5 to 20 mm force S, more preferably 0.5 to 5 mm, and particularly preferably lmm ⁇ 0.5 mm from the viewpoint of uniformly generating plasma discharge.
- the predetermined gap refers to an interval at which the opposing electrode surfaces are closest to each other. In the case of a roll electrode, it is desirable that the gap be constant even when the roll electrode rotates.
- the fluctuation of the predetermined gap when the roll makes one rotation is preferably less than ⁇ 30%, preferably less than ⁇ 10%, more preferably less than ⁇ 5%, and most preferably Preferably it is ⁇ 0.
- the variation in the width direction of the base material passing through the predetermined gap is the same as described above.
- the diameter of the roll electrode is preferably 10-1000mm, A force of 20 to 500 mm is more preferable, and a force of 30 to 300 mm is more preferable.
- the peripheral speed of the roll electrode is 1 to lOOmZmim, more preferably 10 to 50 mZmim.
- the processing chamber having a pair of roll electrodes, plasma discharge means, transfer means, processing gas discharge means, and gas discharge means includes a frame container made of an electrode and an insulating material.
- Metal insulation may be used as long as it is insulated from the electrodes that are preferably surrounded by.
- the metal frame may be an aluminum or stainless steel frame with polyimide resin coated on the inner surface, or the metal frame is ceramic sprayed to provide insulation.
- the means for applying a voltage for generating plasma discharge in the present invention is not particularly limited, but one method is to connect a power source to one electrode of the counter electrode and ground the other electrode. Apply voltage.
- a high frequency power source is preferably used as the power source in the present invention.
- a pulsed power supply can be used.
- the value of the voltage applied from the power supply to the electrode when the voltage is applied is determined appropriately.
- the voltage is preferably 0.5 ⁇ : LOkV or so, and the power supply frequency is adjusted to lkHz to 150MHz, especially 100kHz. 13. If it is less than 56 MHz, a uniform thin film can be obtained by stable discharge.
- the waveform may be a pulse wave or a sine wave.
- a plasma discharge may be generated by applying a high-frequency voltage to each of the facing roll electrodes.
- a processing gas used in the plasma discharge processing apparatus of this embodiment will be described.
- elements of the rare gas useful in the present embodiment elements of Group 18 of the periodic table, specifically, helium, neon, argon, krypton, xenon, radon and the like can be mentioned.
- helium and argon are preferable, and argon is particularly preferable.
- the concentration of the rare gas or nitrogen in the processing gas is preferably 90% by volume or more in order to generate stable plasma. In particular, 90 to 99.99 volume percent is preferable.
- the discharge gas is necessary for generating plasma discharge, and the reactive gas in the plasma discharge is ionized or radicalized to contribute to the surface treatment.
- various materials are used as the reactive gas depending on the type of functional thin film produced on the substrate.
- an organic fluorine compound can be used as a reactive gas to form a low refractive index layer or an antifouling layer useful for an antireflection layer or the like, and a silicon compound is useful for an antireflection layer or the like. It is also possible to form a low refractive index layer.
- an organometallic compound containing a metal such as Ti, Zr, Sn, Si, or Zn
- a metal oxide layer or a metal nitride layer can be formed, and these are reflected.
- a medium refractive index layer and a high refractive index layer useful for the prevention layer and the like can be formed, and further, a conductive layer and an antistatic layer can be formed.
- organic fluorine compounds and metal compounds can be preferably cited as reactive gas substances useful in the present embodiment.
- a gas such as fluorine carbon or fluorinated hydrocarbon is preferred.
- fluorine carbon or fluorinated hydrocarbon for example, tetrafluoromethane, hexafluoroethane, 1, 1 , 2, 2-Terafluoroethylene, 1, 1, 1, 2, 3, 3-Fluorocarbon compounds such as hexafluoropropane and hexafluoropropene. It is not limited to. It is preferable to select a compound in which the organic fluorine compound is a corrosive gas or no harmful gas is generated by the plasma discharge treatment, but it is also possible to select a condition in which they are not generated.
- an organic fluorine compound When used as a reactive gas useful in the present embodiment, it can be used as it is as the most suitable reactive gas component to accomplish the purpose that the organic fluorine compound is a gas at normal temperature and pressure. I like it. In contrast, in the case of a liquid or solid organic fluorine compound at room temperature and normal pressure, it can be used after being vaporized by means of a vaporizer such as heating or decompression, or dissolved in an appropriate organic solvent and sprayed. Or you can evaporate it.
- the plasma discharge treatment is used to From the viewpoint of forming a uniform thin film on the material, the content of the organic fluorine compound in the processing gas is preferably 0.01 to 10% by volume, more preferably 0.1 to 5% by volume. is there. These may be used alone or in combination.
- the reactive gas metal compound preferably used in this embodiment includes Al, As, Au, B, Bi, Ca, Cd, Cr, Co, Cu, Fe, Ga, Ge, and Hg.
- Metal compounds or organometallic compounds such as In, Li ⁇ Mg ⁇ Mn, Mo, Na, Ni, Pb, Pt, Rh, Sb, Se, Si, Sn, V, W, Y, Zn or Zr Al, Ge, In, Sb, Si, Sn, Ti, W, Zn or Zr is preferably used as the organometallic compound.
- examples of the silicon compound include dimethylolenesilane such as dimethylsilane and tetramethylsilane, tetramethoxysilane, tetraethoxysilane, tetrapropoxysilane, dimethyljetoxysilane, methyltrimethoxysilane, Organic silicon compounds such as silicon alkoxides such as ethyltriethoxysilane; silicon hydrogen compounds such as monosilane and disilane; halogenated silicon compounds such as dichlorosilane, trichlorosilane and tetrachlorosilane; and other organosilanes. Can also be preferably used. The present embodiment is not limited to these.
- organosilicon compounds are particularly powerful because they are less corrosive than silicon alkoxides, alkylsilanes, and organosilicon hydrogen compounds, and have less fouling in the process where no harmful gases are generated.
- U which prefers silicon alkoxide as a compound.
- a metal compound other than silicon as a reactive gas useful in the present embodiment is not particularly limited, and examples thereof include an organic metal compound, a halogenated metal compound, a metal hydride compound, and the like.
- Preferred examples of the organic component of the organometallic compound include tetraethoxytitanium, tetraisopropoxytitanium, tetrabutoxytitanium, tetradimethylaminotitanium and the like, which are preferably alkyl groups, alkoxide groups, and amino groups.
- Examples of the halogenated metal compound include disodium titanium, trisalt titanium, and tetrasalt titanium, and examples of the metal hydrogen compound include monotitanium and dititanium.
- a titanium-based organometallic compound can be preferably used.
- the organometallic compound In order to introduce the organometallic compound into the discharge part, it may be in any state of gas, liquid or solid at normal temperature and pressure, but when it is liquid or solid May be vaporized by means such as a vaporizer such as heating, decompression or ultrasonic irradiation. In the present embodiment, it is preferable to use it in a gaseous state by vaporization or evaporation. If the boiling point of the liquid organometallic compound at room temperature and normal pressure is 200 ° C. or less, vaporization can be facilitated, which is suitable for manufacturing the thin film in this embodiment.
- the organometallic compound is a metal alkoxide, such as tetraethoxysilane or tetraisopropoxytitanium, it is easily dissolved in an organic solvent, so it should be diluted in an organic solvent such as methanol, ethanol, n-hexane, etc. Also good. Use organic solvents as mixed solvents.
- the content in the processing gas is preferably 0.01 to 10% by volume, more preferably. 0.1 to 5% by volume.
- the above metal compounds may be used by mixing several kinds of the same or different metal compounds!
- Hydrogen may be mixed in an amount of 0.1 to 10% by volume with respect to the rare gas.
- an organosilicon compound is suitable for forming a low refractive index layer, and a titanium-based organometallic compound has a high refractive index. It is suitable for forming a layer, and any of them is preferably used.
- the refractive index is controlled by adjusting the mixing ratio to obtain a middle refractive index layer.
- the low refractive index layer and the high refractive index layer formed by the plasma discharge treatment using the above processing gas mainly have metal oxide strength.
- the low refractive index layer has silicon oxide and the high refractive index layer has titanium oxide as main components.
- a small amount of silicon oxide may be mixed into the high refractive index layer containing titanium oxide as a main component, and conversely, a small amount of oxide is added to the low refractive index layer containing silicon oxide as a main component. Titanium may be mixed.
- Adhesion Due to this mixing, the adhesion of each layer ( Adhesion) can also be improved.
- an organic metal compound or fluorine-containing compound other than the main component can be mixed and added to the processing gas, and the processing gas is supplied to the processing gas. It is preferable to mix appropriately at the stage before supplying from the part.
- the discharge section is filled with the processing gas, and even if a small amount of entrained air enters the processing chamber, the effects of a small amount of air (oxygen and nitrogen) or moisture can be ignored. .
- air oxygen or nitrogen
- moisture may be added to the processing gas intentionally.
- Examples of the substrate according to the present embodiment include a cellulose ester film, a polyester film, a polycarbonate film, a polystyrene film, a polyolefin film, a polybutyl alcohol film, a cellulose film, and other resin films.
- cellulose ester film cellulose diacetate phenol, cenorelose acetate butyrate phenol, cenorelose acetate propionate film, cellulose acetate phthalate film, cenorelose triacetate, cell mouth sulphonate;
- Polyethylene terephthalate film polyethylene naphthalate film, polybutylene phthalate film, 1,4-dimethylene Chlohexylene terephthalate, or a copolyester film of these structural units
- a polycarbonate film of bisphenol A a syndiotactic polystyrene film as a polystyrene film; a polyethylene film or a polypropylene film as a polyolefin film
- Polybulal alcohol film Polybulol alcohol film, Ethylenebulol alcohol film
- Cellulophane as Cellulose film
- Norbornene resin film Polymethylpentene film, Polyetherketone film, Polyimide as other resin
- Films obtained by appropriately mixing these film materials can also be preferably used.
- a film in which commercially available resin such as ZEONEX (manufactured by Nippon Zeon Co., Ltd.) or ARTON (manufactured by Nippon Synthetic Rubber Co., Ltd.) is mixed can also be used.
- materials with a high intrinsic birefringence such as polycarbonate, polyarylate, polysulfone or polyethersulfone, the conditions such as solution casting or melt extrusion, and the conditions for stretching in the vertical and horizontal directions, etc.
- a base material suitable for this embodiment can be obtained. In this Embodiment, it is not limited to the film of said description.
- a film of about 10 to: LOOO / zm can be preferably used, more preferably 10 to 200 m, and particularly 10
- a thin substrate having a thickness of -60 ⁇ m can be preferably used.
- the thin film is formed by performing a plasma discharge treatment with the processing gas at a discharge portion in the gap between the counter electrodes under atmospheric pressure or a pressure in the vicinity thereof.
- the plasma discharge treatment under the atmospheric pressure or the pressure in the vicinity thereof can be performed with a wide range of substrate width force, for example, 2000 mm, and the processing speed is lOOmZ. It can also be done.
- plasma discharge when plasma discharge is started, first, processing gas or a rare gas is introduced into the processing chamber while drawing the air in the processing chamber with a vacuum pump, and the air is replaced with air to the discharge section. It is preferable to supply a processing gas and fill the discharge part. Thereafter, the substrate is transferred to carry out processing.
- the film thickness can be appropriately adjusted depending on the discharge portion, the treatment gas concentration, and the conveying speed of the substrate.
- the thin film formed on the substrate by the plasma discharge treatment of the present embodiment may be passed through the apparatus in order to carry out the plasma discharge treatment on the opposite side after winding the force on only one side.
- the antistatic layer is formed of a metal oxide
- the antistatic layer or the conductive layer is made of a coating solution such as metal oxide fine particles or crosslinked cationic polymer particles with a film thickness of about 0.1 to 2 ⁇ m.
- the force that can be applied to the substrate by applying the layer to the substrate The thin film conductive layer can also be formed by the plasma discharge treatment of the present embodiment.
- a conductive layer of metal oxide such as tin oxide, indium oxide or zinc oxide may be formed.
- Patent application 2000 Easy-adhesion processing described in 273066, antistatic processing described in Japanese Patent Application No. 2000-80043, and the like can also be performed using the plasma discharge treatment of this embodiment.
- the conditions for forming a thin film by the plasma discharge treatment method of the present embodiment are the same as those described for the plasma discharge treatment apparatus, and other conditions for treatment.
- the substrate is preheated to easily form a uniform thin film by heat-treating the substrate to 50 to 120 ° C and then performing plasma discharge treatment.
- the substrate that had absorbed moisture can be dried by heat treatment, and it is preferable to perform plasma discharge treatment while maintaining low humidity. It is preferable to perform plasma discharge treatment without absorbing moisture on a substrate conditioned at less than 60% RH, more preferably at 40% RH.
- the moisture content is preferably 3% or less, more preferably 2% or less, and even more preferably 1% or less.
- the thin film can be stabilized by heat-treating the substrate after the plasma discharge treatment in a heat treatment zone at 50 to 130 ° C for 1 to 30 minutes.
- the thin film substrate formed by irradiating the treated surface with ultraviolet rays before and after each plasma discharge treatment is obtained.
- the adhesion (adhesiveness) and stability of can be improved.
- the amount of ultraviolet irradiation is preferably 50 to 2000 mjZcm2, and if it is less than 50 mjZcm2, the effect is not sufficient. If it exceeds 2000 mjZcm2, the substrate may be deformed.
- the thickness of the thin film formed in the present embodiment is preferably in the range of 1 to: LOOOnm.
- the thin film formed by the plasma discharge treatment of this embodiment has a small film thickness deviation with respect to the average film thickness, and can form a uniform thin film, which is an excellent thin film forming method.
- a film thickness deviation of ⁇ 10% can be easily obtained, and a uniform thin film preferably within ⁇ 5%, particularly within ⁇ 1% can be obtained.
- composition coating solution containing inorganic or organic fine particles described above is applied to a substrate and dried, and a functional layer having a rough surface of Ra of about 0.1 to 0.5 m, such as an antiglare layer.
- a thin film having a uniform thickness can be formed on the substrate by plasma discharge treatment.
- the thin film is a low refractive index layer or a high refractive index layer, it can be provided as an optical interference layer.
- the film of the present embodiment includes a thin film formed by the plasma discharge treatment of the present embodiment and a laminate thereof.
- the film of the present embodiment includes an antireflection film, an antiglare antireflection film, an electromagnetic wave shielding film, a conductive film, an antistatic film, a retardation film, an optical compensation film, a viewing angle widening film, a luminance Strength with improvement film etc. It is not limited to these.
- Each optical film surface (side of the antifouling layer coating side) created using the thin film forming apparatus of the present invention using auxiliary gas CG is a friction tester HEIDON-14DR, using steel wool (Bonster # 0000), After carrying out the rubbing treatment 10 times under the conditions of a caro weight of 40 kPa and a moving speed of lOmmZ, the range of 10 mm X 10 mm was observed with a loupe, and scratch resistance was evaluated according to the following criteria.
- C Scratches are 6 or more and 15 or less.
- D The number of scratches is 16 or more and 25 or less.
- PET polyethylene terephthalate film
- Discharge gas Argon gas 94.9 volume 0/0 film forming gas: source gas: tetraethoxysilane
- Discharge gas Argon gas 97.9 volume 0/0 thin film forming gas: tetraisopropoxytitanium 0.1 volume 0/0 additive gas: hydrogen 2.0 volume 0/0 ⁇ auxiliary gas>: argon gas 100 vol 0/0 ⁇ Power supply conditions>
- ⁇ injection angle of auxiliary gas
- ⁇ injection angle of auxiliary gas
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Description
Claims
Priority Applications (2)
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US12/305,662 US8980007B2 (en) | 2006-06-28 | 2007-06-25 | Thin film forming apparatus and thin film forming method |
JP2008522566A JP4883085B2 (ja) | 2006-06-28 | 2007-06-25 | 薄膜形成装置、及び、薄膜形成方法 |
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JP2006-177813 | 2006-06-28 | ||
JP2006177813 | 2006-06-28 |
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PCT/JP2007/062701 WO2008001723A1 (fr) | 2006-06-28 | 2007-06-25 | Dispositif de fabrication d'un film mince et procédé de fabrication d'un film mince |
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JP (1) | JP4883085B2 (ja) |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009104443A1 (ja) * | 2008-02-19 | 2009-08-27 | コニカミノルタホールディングス株式会社 | 薄膜形成方法及び薄膜積層体 |
JP2010539694A (ja) * | 2007-09-10 | 2010-12-16 | ダウ・コーニング・アイルランド・リミテッド | 大気圧プラズマ |
JP5780154B2 (ja) * | 2009-03-04 | 2015-09-16 | コニカミノルタ株式会社 | 薄膜を有する基材の製造方法 |
CN107683632A (zh) * | 2015-06-04 | 2018-02-09 | 希尔德斯海姆霍尔茨明登哥廷根应用科学和艺术大学 | 用于对尤其带状物体进行等离子处理的设备 |
Families Citing this family (1)
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US9217201B2 (en) * | 2013-03-15 | 2015-12-22 | Applied Materials, Inc. | Methods for forming layers on semiconductor substrates |
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US6890386B2 (en) * | 2001-07-13 | 2005-05-10 | Aviza Technology, Inc. | Modular injector and exhaust assembly |
US6849306B2 (en) * | 2001-08-23 | 2005-02-01 | Konica Corporation | Plasma treatment method at atmospheric pressure |
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EP1643002A4 (en) * | 2003-06-06 | 2009-11-11 | Konica Minolta Holdings Inc | METHOD FOR FORMING THIN LAYERS AND ARTICLE COMPRISING A THIN LAYER |
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- 2007-06-25 JP JP2008522566A patent/JP4883085B2/ja not_active Expired - Fee Related
- 2007-06-25 US US12/305,662 patent/US8980007B2/en not_active Expired - Fee Related
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JP2003049273A (ja) * | 2001-08-08 | 2003-02-21 | Kobe Steel Ltd | プラズマcvd装置及びプラズマcvdによる成膜方法 |
JP2003222723A (ja) * | 2002-01-30 | 2003-08-08 | Konica Corp | 光学フィルム、防眩性反射防止フィルム、偏光板、表示装置及び光学フィルムの製造方法 |
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Cited By (6)
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---|---|---|---|---|
JP2010539694A (ja) * | 2007-09-10 | 2010-12-16 | ダウ・コーニング・アイルランド・リミテッド | 大気圧プラズマ |
WO2009104443A1 (ja) * | 2008-02-19 | 2009-08-27 | コニカミノルタホールディングス株式会社 | 薄膜形成方法及び薄膜積層体 |
JPWO2009104443A1 (ja) * | 2008-02-19 | 2011-06-23 | コニカミノルタホールディングス株式会社 | 薄膜形成方法及び薄膜積層体 |
JP5780154B2 (ja) * | 2009-03-04 | 2015-09-16 | コニカミノルタ株式会社 | 薄膜を有する基材の製造方法 |
CN107683632A (zh) * | 2015-06-04 | 2018-02-09 | 希尔德斯海姆霍尔茨明登哥廷根应用科学和艺术大学 | 用于对尤其带状物体进行等离子处理的设备 |
CN107683632B (zh) * | 2015-06-04 | 2021-02-19 | 希尔德斯海姆霍尔茨明登哥廷根应用科学和艺术大学 | 用于对尤其带状对象进行等离子处理的设备 |
Also Published As
Publication number | Publication date |
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US8980007B2 (en) | 2015-03-17 |
JPWO2008001723A1 (ja) | 2009-11-26 |
US20100159156A1 (en) | 2010-06-24 |
JP4883085B2 (ja) | 2012-02-22 |
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