WO2005074334A1 - プラズマ生成装置 - Google Patents
プラズマ生成装置 Download PDFInfo
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- WO2005074334A1 WO2005074334A1 PCT/JP2005/001010 JP2005001010W WO2005074334A1 WO 2005074334 A1 WO2005074334 A1 WO 2005074334A1 JP 2005001010 W JP2005001010 W JP 2005001010W WO 2005074334 A1 WO2005074334 A1 WO 2005074334A1
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- Prior art keywords
- plasma
- droplet
- traveling path
- path
- droplets
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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
- H05H1/48—Generating plasma using an arc
- H05H1/50—Generating plasma using an arc and using applied magnetic fields, e.g. for focusing or rotating the arc
Definitions
- the present invention relates to a cathode material particle (hereinafter, referred to as “droplet”) that generates plasma by performing vacuum arc discharge in an arc discharge unit set in a vacuum atmosphere to generate plasma by generating a plasma. ) Is collected in the droplet collecting section.
- droplet a cathode material particle
- a solid in general, it is known that the surface characteristics of a solid can be improved by forming a thin film on a surface of a solid material or implanting ions in plasma. Films formed using plasma containing metal ions and non-metal ions enhance the abrasion and corrosion resistance of solid surfaces, and are useful as protective films, optical thin films, transparent conductive films, etc. .
- a carbon film using carbon plasma is highly useful as a diamond-like carbon film (DLC film) composed of a mixed crystal of diamond structure and graphite structure.
- DLC film diamond-like carbon film
- Vacuum arc plasma is formed by an arc discharge generated between a cathode and an anode, a cathode material evaporates from a cathode point present on the cathode surface, and is formed by the cathode evaporating substance.
- a reactive gas or / and an inert gas a rare gas and a gas
- the reactive gas or Z and the inert gas are simultaneously ionized.
- a surface treatment can be performed by forming a thin film on a solid surface or by implanting ions.
- particles of a vacuum arc plasma such as cathode material ions, electrons, and neutral particles (atoms and molecules) of the cathode material are emitted from the cathode spot, and at the same time, from submicron to several hundred microns ( Also, cathode material fine particles called droplets with a size of 0.01-1000 / im) are emitted.
- a problem in surface treatment is the generation of droplets. When the droplets adhere to the surface of the base material, the uniformity of the thin film formed on the base material surface is lost, and the thin film becomes defective. For this purpose, the droplets There is no adhesion, a method must be developed.
- Non-Patent Document 1 R.P.Netterfield and T.J.Kinder, ThinSolid Films 193/194 (1990) 77) (Non-Patent Document 1).
- a vacuum arc plasma is transported to a processing section through a curved droplet collecting duct.
- the generated droplets are adhered and captured (collected) on the inner peripheral wall of the duct, and a plasma flow containing almost no droplets is obtained at the duct outlet.
- a curved magnetic field is formed by a magnet arranged along the duct, and the plasma flow is bent by the curved magnetic field, so that the plasma is efficiently moved to the plasma processing unit.
- the magnetic filter method has the following problems. Droplets accumulate on the curved outer and inner walls and must be removed periodically. However, the work is not easy because the duct is usually thin. When the droplets are deposited to a thickness of about 0.5 mm, the deposits may be peeled off from the inner wall and mixed into the plasma as impurities. Furthermore, when a high-melting material such as graphite is used for the cathode, the droplet does not completely liquefy, the droplet collides elastically with the inner wall of the curved duct, and is repeatedly reflected and released from the duct outlet. It may adhere to the surface of the material.
- a high-melting material such as graphite
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-8893
- FIG. 14 Gt indicates a gas introduction system
- Gh indicates a gas discharge system
- V indicates a power supply.
- a vacuum arc discharge is performed in a vacuum atmosphere in which a reactive gas is introduced to generate plasma, and the plasma is generated in the plasma processing unit T. Let it flow in. Then, the object 130 disposed in the plasma processing part T is subjected to surface processing by plasma.
- the plasma flow P emitted from the plasma generating unit E is bent in a direction not facing the plasma generating unit by the curved magnetic field, and flows into the plasma processing unit T.
- a droplet collecting section D for collecting cathode material fine particles (droplets) by-produced from the cathode during plasma generation is arranged.
- the plasma flow is branched from the droplet flow in a substantially orthogonal direction by a curved magnetic field, and the droplet collecting portion is completely separated from the plasma flow path. Therefore, the droplets can be easily collected and removed, and the droplets can hardly be mixed into the plasma processing part.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-8893
- Non-Patent Document 1 P.J.Martin, R.P.Netterfield and T.J.Kinder, Thin Solid Filmsl93 / 194 (1990) 77
- the droplets traveling toward the arc discharge portion, the droplet collection portion D, and the plasma traveling path along which the plasma proceeds are formed. It may collide with the side wall 101. In some cases, the droplets reflected and entered the plasma traveling path, and adhered to the surface of the processing object 130. As described above, in the conventional plasma processing apparatus, the plasma flow and the droplet flow cannot be completely separated. For this reason, droplets may enter the plasma traveling path, making it difficult to form a high-purity film.
- the present invention has been made in view of the above-described conventional problems, and reliably branches plasma and droplets advancing from an arc discharge unit, and guides the plasma to a plasma advancing path. It is another object of the present invention to provide a plasma generating apparatus in which droplets are reliably collected in a droplet collecting section. It is another object of the present invention to provide a plasma generation apparatus in which a special member is configured in the droplet traveling path to reliably prevent the droplet from entering the plasma traveling path.
- the present invention has been proposed to solve the above-mentioned problems, and a first aspect of the present invention is to perform plasma arc discharge by performing a vacuum arc discharge in an arc discharge unit set in a vacuum atmosphere. And a cathode material particle (hereinafter, referred to as a “droplet”) that is generated as a by-product from the cathode when the plasma is generated. Is provided in the main traveling path where the vehicle travels in a mixed state. A restricting plate for restricting the progress of the plasma and the droplet is provided in the middle of the road toward the inside, and after passing through the restricting plate, the main traveling path is moved along the droplet force S in the direction of the main traveling path.
- a cathode material particle hereinafter, referred to as a “droplet”
- the droplet branches into a substantially ⁇ -shape into a droplet traveling path that advances to the first plasma traveling path and the plasma is bent by the magnetic field, and the droplet that has passed through the limiting plate is directed toward the droplet collecting section.
- a skew wall for reflection is provided, and the skew wall is provided on a side wall portion of the droplet traveling path, and is formed by a plasma generation device formed at a position beyond the first plasma traveling path. is there.
- a reflector in the droplet traveling path, is disposed continuously to the sloping wall, and the reflector is positioned near the droplet collecting unit, This is a plasma generation device that collects the droplets reflected by the reflector in the droplet collecting section.
- the skewed wall is formed such that the droplets traveling from the arc discharge portion are not reflected by the side wall at least once in the space limited by the limiting plate.
- This is a plasma generation device that is disposed at least at a position where a straight collision occurs.
- the skewed wall is such that the droplets advancing from the arc discharge portion are reflected once by the side walls in a space limited by the limiting plate, so that a straight collision occurs.
- the plasma generation device is at least arranged at the position where
- the skewed wall is such that the droplet advancing from the arc discharge portion is reflected twice on the side wall within the space limited by the limiting plate, and the skewed straight collision occurs.
- the plasma generation device is at least arranged at the position where
- the main traveling path includes a first main traveling path extending straight from the arc discharge portion, and a second main traveling path extending from the first main traveling path while being bent from the first main traveling path.
- This is a plasma generation device composed of a traveling path.
- a second plasma traveling path which is bent from the first plasma traveling path in a direction opposite to the main traveling path, extends, and the second plasma traveling path branches.
- This is a plasma generation device in which an auxiliary droplet collection unit is provided.
- An eighth aspect of the present invention is the plasma generation device, wherein a bending angle of the second plasma advancing path with respect to the first plasma advancing path is equal to or greater than a right angle.
- a ninth aspect of the present invention is the plasma generating apparatus, wherein a bending angle of the second plasma advancing path with respect to the first plasma advancing path is an acute angle smaller than a right angle.
- a plasma is generated by performing a vacuum arc discharge in an arc discharge unit set in a vacuum atmosphere, and cathode material particles (droplets) by-produced from the cathode when the plasma is generated.
- a plasma generating apparatus configured to collect the plasma and the droplets in a droplet collecting section, a main traveling path in which the plasma and the droplets travel in a mixed state is provided.
- One or more restriction plates for restricting the progress of the droplets are provided inward, and the droplets on which the droplets travel in the main traveling direction after passing through the restriction plates.
- a branch is formed in a substantially T-shape into a traveling path and a first plasma traveling path in which the plasma is bent by a magnetic field and travels, and the droplet collecting section is provided at a tip end of the droplet traveling path. It is provided a plasma generating apparatus.
- an auxiliary droplet collecting portion is provided at a tip portion of the plasma advancing path, and the auxiliary droplet collecting section is bent from the first plasma advancing path in front of the auxiliary droplet collecting section.
- This is a plasma generation device in which a second plasma advancing path is extended at an inclined position.
- a plurality of buffer plates are attached to the droplet collecting unit and / or the auxiliary droplet collecting unit, and plasma is generated so that the droplets collide with the buffer plate and reflect.
- plasma is generated so that the droplets collide with the buffer plate and reflect.
- a thirteenth aspect of the present invention is the plasma generation device, wherein the buffer plate has a flat plate shape, and the buffer plate is arranged obliquely with respect to the opening surface of the collecting unit.
- a fourteenth aspect of the present invention is the plasma generation device, wherein the buffer plate has a triangular prism shape, and the buffer plates are arranged so that two triangular prism side surfaces are inclined with respect to the opening of the collecting unit. You.
- a droplet accumulating section is provided in the droplet collecting section and / or the auxiliary drop collecting section, and the width of the droplet accumulating section is reduced as approaching the bottom. It is a plasma generating device having a large diameter.
- the first plasma advancing path and the Z or second plasma advancing path are provided with a plasma centering constricted portion that gradually reduces the diameter of the plasma advancing path,
- This is a plasma generation device that narrows the cross-sectional diameter of the plasma flow by the plasma centering throttle unit.
- a restricting magnetic field generator is provided outside the plasma centering restricting portion, and the number of turns of a coil constituting the restricting magnetic field generator increases in the direction of the plasma. Device.
- a deflection coil is provided on the output side of the plasma centering diaphragm, and the plasma This is a plasma generator that runs the plasma that has passed through the centering aperture on the xy plane.
- the plasma traveling along the plasma traveling path is provided at the final end in the traveling direction of the plasma traveling path.
- a plasma processing apparatus is provided, in which a plasma processing unit for inflowing the gas is disposed, and a surface treatment processing is performed by the plasma on an object disposed in the plasma processing unit.
- a plasma generation is provided in which a magnetic field generator is provided on the outer periphery before and after the object along the flow of the plasma.
- the plasma and droplets generated by the arc discharge in the arc discharge unit travel on the main traveling route with the flight space restricted by the restriction plate.
- the particles advance only to the solid angle opened by the limiting plate, and the other particles are blocked by the limiting plate and enter the main traveling path. Will be blocked.
- the shape, position, and number of steps of the limiting plate are appropriately set to optimal conditions.
- the limiting plate is installed along the inner wall of the vacuum chamber, by connecting a droplet traveling path having a diameter smaller than that of the plasma generating section, the plasma generating section and the droplet traveling path are connected.
- the connecting plate or the flange itself can function as a limiting plate.
- the droplet moves forward and reaches the droplet traveling path, where the plasma flow is bound by the magnetic field, bends, and is branched into a substantially T-shaped first plasma traveling path.
- the plasma flow and droplet flow Are separated in a substantially right angle direction.
- droplets that collide with the sloping wall formed integrally with the side wall are reflected toward the droplet collecting portion and reliably collected by the droplet collecting portion.
- the skewed wall has a restricted geometrical positional relationship so that, of the droplets passing through the restriction plate, the droplets colliding with the skewed wall are reflected and guided to the droplet collecting portion. I have. Therefore, according to the present apparatus, it is possible to reliably separate the plasma and the droplet from the arc discharge part. Then, the plasma is guided to the first plasma traveling path, and the droplets can be reliably collected in the droplet collecting section. Thus, by providing the restriction plate and the oblique wall, it is possible to reliably prevent the droplet from entering the plasma traveling path.
- the present invention provides a plasma generating apparatus having a simplified internal structure, in which the oblique wall is integrally formed with a side wall forming a droplet traveling path.
- the droplet that has traveled straight without being reflected by the oblique wall on the droplet traveling path is The droplets are reflected by the reflector and can be collected in the droplet collecting section.
- all the droplets that are reflected by the side wall surrounding the droplet traveling path and collide with the reflector are reflected and collected by the droplet collecting unit. Therefore, almost all the droplets are collected by the droplet collecting part by the cooperative action of the oblique wall and the reflector, and almost completely from the plasma bent and guided to the first plasma traveling path. Can be eliminated.
- the droplets that have passed through the restriction plate among the droplets that have passed through the restriction plate, the droplets that travel straight without being reflected at all by the side walls of the traveling paths (the main traveling path and the droplet traveling path). Will collide with one of the skewed wall and the reflector, and will be collected by the droplet collector after reflection. As a result, a droplet that has traveled straight without being reflected by the side wall of the traveling path cannot enter the first plasma traveling path. Therefore, only the plasma can be advanced in the first plasma advancing path.
- the droplet that is reflected only once on the side wall of the traveling path (main traveling path and droplet traveling path) and travels straight is one of the oblique wall and the reflecting plate.
- the droplets reflected by the skewed wall or the reflector are collected by the droplet collecting section.
- droplets that are reflected once on the side walls of the main traveling path and the droplet traveling path and go straight ahead cannot enter the first plasma traveling path.
- the droplet that is reflected twice on the side walls of the traveling path (main traveling path and droplet traveling path) and travels straight is one of the skewed wall and the reflector. Will collide.
- droplets that are reflected twice on the side wall of the main traveling path or the droplet traveling path and go straight do not enter the first plasma traveling path.
- the third mode and / or the fourth mode only pure plasma can be advanced in the first plasma advancing path.
- the object to be processed can be processed only by the plasma, and the droplet does not adhere to the surface of the object to be processed.
- the plasma and the droplet are advanced to the second main traveling path bent and extended from the first main traveling path.
- the droplet can be reflected toward the droplet traveling route at a point where the vehicle is bent from the first main traveling route and travel straight. This can prevent the droplet from entering the first plasma traveling path.
- droplets that have traveled straight along the droplet travel path are reflected toward the droplet collecting section by the sloping walls and / or reflectors, and can be reliably collected by the droplet collecting section. it can.
- the restricting plate can be provided on the first main travel path or Z and the second main travel path, and can guide the plasma flow and droplet flow to the skewed wall, reflector, or droplet collector, and (1) Pure plasma properties of the plasma path can be ensured.
- plasma is guided to the second plasma traveling path that is bent and extended from the first plasma traveling path.
- these droplets are captured by the auxiliary droplet collecting section.
- the second plasma traveling path can extend in any direction within a solid angle of 4 ⁇ with respect to the first plasma traveling path, and the bending angle and the extension angle are adjusted according to the space in which the plasma generation device is installed. The ability to determine the installation direction can be achieved.
- the second plasma path is bent at a right angle or more from the first plasma path, a small amount of droplets traveling to the first plasma path are The kinetic energy for reflecting off the side wall of the traveling path has almost disappeared. Therefore, the droplet does not proceed in the second plasma traveling path bent at a right angle or more.
- the droplet since the second plasma traveling path is bent at an acute angle less than a right angle from the first plasma traveling path, the droplet hardly reflects at an acute angle. Therefore, it can be prevented from proceeding in the second plasma traveling path.
- the tenth aspect of the present invention since one or more restricting plates are provided on the main traveling path, almost all of the droplets that proceed in a state where the plasma and the droplets are further restricted and travel straight ahead are provided. Is collected in the drop collecting section. That is, droplets that have passed through the first limiting plate are reflected straight ahead and are regulated by the second limiting plate. Furthermore, if a third limiting plate is provided, this restriction is further strengthened, and the vehicle can be guided to the droplet traveling path as straight as possible, and the collection of droplets can be ensured. Therefore, the approach to the plasma traveling path is almost completely shut off, and only high-purity plasma is guided to the plasma traveling path.
- the eleventh mode of the present invention all of the minute residual droplets entering the first plasma advancing path through which the plasma flow is guided are collected by the auxiliary droplet collecting section.
- the approach to the second plasma path is completely shut off. Therefore, only higher-purity plasma is guided to the second plasma traveling path.
- the droplet can be moved at a flying speed. Can be repeatedly reflected until the light is lost. Therefore, the droplet is collided and reflected until the flight speed is lost, so that the droplet is located at the bottom of the droplet collecting section. It can be securely adhered or deposited on the part, the side wall or the buffer plate. Therefore, the droplets that have once entered the droplet collecting section are reliably collected, and the purity of the plasma traveling to the plasma advancing path can be kept even higher.
- the incident droplets can be kept until the flight speed becomes zero.
- the droplets are colliding and reflected by the inner wall of the applet collecting portion, so that the flying speed of the droplets can be reliably eliminated. That is, in the droplet collecting section where the shock absorbing plate is obliquely arranged, a sufficient number of collision reflections are caused until the flying speed becomes completely zero, and the droplet is surely dropped on the droplet collecting section. Lets be collected.
- the droplets incident on the side surface of the triangular prism are collided and reflected, whereby the droplets can be reliably collected. That is, by causing the dro bullet to collide and reflect until the flight speed is lost, the droplet is securely adhered or deposited on the bottom, the side wall, or the buffer plate of the droplet collecting portion.
- the fifteenth aspect of the present invention it is possible to reliably collect the droplets by providing the droplet collecting portion and / or the auxiliary droplet collecting portion with the droplet accumulating portion. I can do it. Further, since the width of the droplet accumulation portion is reduced as approaching the bottom, the droplet loses kinetic energy while being multi-reflected on the inner peripheral surface of the droplet accumulation portion, and moves to the bottom. Move forward intensively. As a result, the droplets adhere or accumulate on the bottom or side wall of the droplet accumulation portion. Since the shape of the droplet stacking portion is a tapered cylindrical shape or a curved cylindrical shape that protrudes in the traveling direction of the droplet and has a reduced diameter, the droplet can be reliably collected.
- a plasma centering constriction portion in which the cross-sectional diameter of the plasma traveling path is gradually reduced is provided on the first plasma traveling path or the second plasma traveling path.
- the cross-sectional diameter of the plasma flow can be reduced by the centering throttle section, and the plasma can be controlled so as to pass through the center of the plasma traveling path. Therefore, a beam-like high-density plasma flow is formed, and a uniform thin film can be formed by irradiating the plasma flow on the substrate surface and running the same.
- the plasma centering throttle unit For example, a guide wall that imposes a geometric constraint, preferably a semi-conical guide wall force that reduces in diameter in the direction of travel, can be configured.
- a throttle magnetic field generator is attached to the plasma centering throttle portion, and the number of turns of the coil is increased in the plasma advancing direction.
- the magnetic field can be increased, and the diameter of the plasma flow can be narrowed with high efficiency. That is, since the plasma is guided by the magnetic field and proceeds, the plasma passing through the plasma centering aperture is focused without colliding with the peripheral wall, and further focused with the enhancement of the magnetic field, so that the efficiency is high.
- a beam-like high-density plasma flow can be formed.
- a deflection coil is provided on the output side of the plasma centering throttle unit, and the plasma passing through the plasma centering throttle unit can run on the xy plane.
- the high-density plasma flow can be uniformly irradiated on the entire surface of the workpiece, and a high-quality coating can be formed on the workpiece.
- a high-purity plasma flow can be introduced into the plasma processing section. That is, since the progress of the droplet is prevented on the plasma traveling path, only the plasma proceeds on the final stage plasma traveling path. Therefore, it is possible to perform the surface treatment with only high-purity plasma on the object to be processed arranged in the plasma processing section. Since no droplets adhere to the object, a high-quality film can be formed.
- a magnetic field generator is attached to the outer periphery before and after the object to be processed along the flow of plasma.
- a uniform magnetic field can be formed near the surface of the object. Since the plasma flow can be uniformed by the uniform magnetic field, the surface of the object can be more uniformly irradiated with the plasma, and a high-quality film can be formed on the surface of the object.
- FIG. 1 is a cross-sectional configuration diagram of a first embodiment of a plasma generation device according to the present invention.
- FIG. 2 is a cross-sectional configuration diagram of a modified example of the first embodiment of the plasma generating apparatus according to the present invention.
- FIG. 3 is an explanatory diagram of a plasma control mechanism in the plasma centering throttle unit 15 and the plasma processing unit 6 according to the present invention.
- FIG. 4 is an explanatory view showing a state in which droplets traveling from the arc discharge section in the apparatus travel without being reflected at any time by the side wall of the main traveling path.
- FIG. 5 is an explanatory view showing a state in which droplets traveling from the arc discharge unit in the apparatus are reflected once on the side wall of the main traveling path and travel.
- FIG. 6 is an explanatory diagram showing a state in which droplets traveling from the arc discharge unit in the apparatus are reflected twice on the side wall of the main traveling path and travel.
- FIG. 7 is a cross-sectional configuration diagram showing an internal structure of a plasma generation device according to a second embodiment.
- FIG. 8 is a cross-sectional configuration diagram showing an internal structure of a plasma generation device according to a third embodiment.
- FIG. 9 is a cross-sectional configuration diagram showing an internal structure of a plasma generation device according to a fourth embodiment.
- Garden 10 is a cross-sectional configuration diagram showing the internal structure of the plasma generation device of the fifth embodiment.
- FIG. 11 is a cross-sectional configuration diagram showing an internal structure of a plasma generation device according to a sixth embodiment.
- FIG. 12 is a schematic configuration diagram of a plasma generator of the seventh embodiment.
- FIG. 13 is a schematic configuration diagram of a plasma generating apparatus according to an eighth embodiment.
- FIG. 14 is a schematic view showing a conventional plasma processing apparatus.
- FIG. 1 is a sectional configuration diagram of a first embodiment of a plasma generation device according to the present invention.
- the plasma generating apparatus of the first embodiment is assembled as a plasma processing apparatus by being integrated with a plasma processing section including the object T to be processed.
- the plasma processing method using this plasma processing apparatus generally generates plasma by performing vacuum arc discharge in a vacuum atmosphere, and moves the plasma to the plasma processing section.
- the object to be treated arranged in the plasma processing part is subjected to surface treatment by plasma.
- a reactive gas can be introduced into the plasma processing method as needed.
- this plasma processing method has basically the same configuration for a plasma generation apparatus described in the second to seventh embodiments described later, and the plasma processing apparatus including the plasma processing section also has a plasma generation apparatus. It is called a device.
- the constituent particles of the plasma consist of evaporated substances from the cathode la of the arc discharge section 1, or charged particles (ions, electrons) that have been turned into plasma originating from the vaporized substance and the introduced gas (source). Pre-plasma molecules and atomic neutral particles are included.
- the deposition conditions in the plasma processing method are as follows: current: 600 A (preferably 5 to 500 A, more preferably 10 150 A). Furthermore, Voltage: 5 100 V (preferably 10- 80V, further Nozomu Mashiku is 10 50 V), the pressure: 10- 1C> - 10 2 Pa ( preferably 10- 6 - 10 2 Pa, and more preferably 10- 5 l C ⁇ Pa).
- the plasma generating apparatus shown in Fig. 1 basically has an arc discharge unit 1 formed in a vacuum chamber 1S, and a main unit in which plasma and droplets generated in the arc discharge unit 1 travel in a mixed state. It has a traveling path 2. Further, it has a droplet traveling path 4 in which the droplet travels toward the droplet collecting section 3 and a first plasma traveling path 5 in which the plasma from which the droplet has been separated by the curved magnetic field travels. Further, the plasma processing unit 6 includes a plasma processing unit 6 that performs a surface treatment of the object T by using plasma that advances in the first plasma advancing path 5.
- the arc discharge unit 1 includes a cathode (force source) la, a cathode protector lb, an anode (anode) lc, a trigger electrode ld, an arc-stabilized magnetic field generator (electromagnetic coil or magnet) le and If. .
- the cathode la is a source for supplying a main component of plasma, and the material for forming the cathode la is not particularly limited as long as it is a solid having conductivity. Metals, alloys, inorganics, inorganic compounds (metal oxides / nitrides), etc. can be used singly or as a mixture of two or more, regardless of the particulars.
- the metal simple substance Al, Ti, Zn, Cr, Sb, Ag, Au, Zr, Cu, Fe, Mo, W, Nb, Ni, Mg, Cd, Sn, V, Co, Y, Hf, Pd, Rh, Pt, Ta, Hg, Nd, Pb, etc.
- the alloy (metal compound) includes TiAl, AlSi, NdFe and the like.
- examples of the inorganic simple substance include C and Si.
- inorganic compounds (ceramics) TiO, ZnO, SnO, ITO ( Indium-Tin-Oxide: oxides such as indium oxide (Tn), In O, Cd SnO, and Cu ⁇
- carbides and nitrides such as TiN, TiAlC, TiC, CrN, and TiCN can also be mentioned.
- the cathode protector lb electrically covers and insulates a portion other than the cathode surface to be evaporated, and prevents the vacuum arc plasma generated between the cathode la and the anode lc from being diffused backward. It is.
- General-purpose heat-resistant ceramics or the like can be used as the cathode protector lb.
- an electric insulating layer (simply a gap or a ceramic or a fluorine resin is interposed) is formed between the cathode la and a general-purpose stainless steel, an aluminum alloy or the like can be used.
- the cathode protector lb may be made of a carbon material having a low electrical conductivity (amorphous carbon having a processing temperature of about 800 to 2000 ° C or carbon impregnated with Teflon (registered trademark)).
- the cathode protector lb may be formed of a heat-resistant ferromagnetic material such as iron or ferrite instead of stainless steel. Then, the cathode protector lb itself is magnetized by the magnetic field applied from the arc stabilizing magnetic field generator le and / or If arranged outside the vacuum chamber 1S, and directly acts on the plasma. This facilitates adjustment of the generated plasma distribution.
- the material for forming the anode lc is not particularly limited as long as it is a nonmagnetic material that does not evaporate even at the temperature of plasma and is a conductive material. Regardless of a metal simple substance, an alloy, an inorganic simple substance, an inorganic compound (metal oxide 'nitride), etc., they can be used alone or in combination of two or more.
- the material used for the above-described cathode can be appropriately selected and used.
- the anode lc is formed of stainless steel, copper, carbon material (graphite: graphite), or the like, and the anode lc is desirably provided with a cooling mechanism such as a water-cooled type or an air-cooled type.
- the shape of the anode lc is not particularly limited as long as it does not obstruct the entire progress of the arc plasma.
- it is a cylindrical body (irrespective of a cylinder or a rectangular tube), but it may be formed in a coil shape, a U-shape, or a pair of upper, lower, left and right parallel. Alternatively, they may be formed by arranging them at any position in one of the upper, lower, left and right directions, or at one or more positions.
- the trigger electrode Id is an electrode for inducing a vacuum arc between the cathode la and the anode lc. That is, by temporarily bringing the trigger electrode Id into contact with the surface of the cathode la and then separating the same, an electric spark is generated between the cathode la and the trigger electrode Id. Electric spark When this occurs, the electric resistance between the cathode la and the anode lc decreases, and a vacuum arc is generated between the cathode and the anode.
- As the material for forming the trigger electrode Id general-purpose Mo (melting point: 2610 ° C) or W (melting point: 3387 ° C), which is a high melting point metal, is used.
- the trigger electrode Id is made of a carbon material, preferably graphite (graphite).
- the arc stabilizing magnetic field generators le and If are arranged on the outer periphery of the vacuum chamber 1S in the arc discharge unit 1, and stabilize the cathode point of the vacuum arc and the plasma generated by the arc discharge. If the arc stabilizing magnetic field generators le and If are arranged such that the applied magnetic fields to the plasma are in opposite directions (cusp shape), the plasma becomes more stable. If the plasma bow I is given priority to the extraction efficiency, or if the anode is located at a position facing the cathode surface and does not hinder the progress of the plasma, or if it is placed at a position, the applied magnetic fields should be in the same direction (mirror type). They can also be arranged in such a way. Further, in FIG. 1, the arc stabilizing magnetic field generator le can be arranged near the force S arranged on the outer periphery of the vacuum chamber S, and the insulating introduction terminal lh of the cathode la at the S end of the vacuum chamber.
- the cusp-shaped applied magnetic field controls the movement of the arc cathode spot and spreads the plasma in the radial direction (ie, a flat columnar shape) to secure a current path between the cathode and the anode, thereby preventing arc discharge. Stabilize.
- an electromagnet electromagnet or a permanent magnet is usually used as the magnetic field generators le and If.
- the magnetic field generator If may be used also as a first plasma induction magnetic field generator 10 described later, in which case there is an advantage that the number of plasma induction magnetic field generators can be reduced.
- the cathode la, the anode lc, and the trigger electrode Id are each connected to an external arc power supply li via an insulating introduction terminal lh.
- an arc power supply li use a general-purpose DC, pulse or DC superimposed noise power supply.
- a 1 m limiting resistor (110 ⁇ ) for limiting (adjusting) the current flowing through the trigger electrode Id is inserted.
- the plasma processing unit (processing unit) 6 may be connected to a gas introduction system (not shown) and a gas exhaust system (not shown) that may not perform gas introduction. General-purpose systems can be used for these systems. It is assumed that the gas introduction flow rate is controlled to be constant and the exhaust flow rate is controlled so that the degree of vacuum (pressure) of the entire vessel is controlled to be constant.
- the introduced gas may be introduced from both the plasma processing unit (processing unit) 6 and the arc discharge unit 1, which may be introduced from the arc discharge unit 1. When the gas is introduced from both the process section and the plasma generation section, the type of gas may be different. When a reactive gas is not used, a reactive gas is used as appropriate, in addition to a rare gas (usually, Ar or He) for maintaining a constant pressure.
- the reactive gas reacts with evaporating particles (plasma particles) using a cathode material or the like as a source to easily form a double compound film.
- Reactive gases include nitrogen), oxygen ( ⁇ ), water
- One or more kinds can be appropriately selected and used from the group of 2 2 2 2 2 4 4 2 6 2.
- the rare gas may be mixed to adjust the concentration of the reactive gas.
- alcohol vapor, organometallic gas, or organometallic liquid vapor can be used as the reactive gas.
- the plasma P immediately after the release is bent and moved to the plasma processing section 6 by magnetic field induction in the above-described basic configuration.
- the cathode material fine particles (droplets) D which are by-produced from the cathode la when plasma is generated, are moved to the droplet collecting section 3 which does not interfere with the plasma processing section 6 and collected and deposited. .
- a droplet generated from the cathode is electrically neutral and generally not affected by a magnetic field, and thus has a characteristic of moving straight.
- the main traveling path 2 is branched into a substantially T-shape into a droplet traveling path 4 in which droplets travel and a first plasma traveling path 5 in which plasma travels. ing.
- a restriction plate 7 for restricting the progress of the plasma and the droplet is provided in the middle of the main traveling path 2 inward. Further, an oblique wall 8 is provided so that the droplet passing through the restriction plate 7 faces the droplet collecting section 3.
- the sloping wall 8 is provided at an intermediate portion of the droplet traveling path 4, and is formed at a position beyond the first plasma traveling path 5.
- the skew wall 8 is provided at a branch portion of the droplet traveling path 4 from the first plasma traveling path 5 so as to be steeply inclined upward and obliquely right in FIG. .
- This The end of the sloping wall 8 on the first plasma traveling path side is located at a position where the main traveling path 2 enters the first plasma traveling path 5 side from the right end on the first plasma traveling path side.
- the reflection plate 9 is disposed so as to be further gently inclined following the sloping wall 8. Also, the reflection plate 9 is located near the droplet collecting section 3.
- a first guide having a first plasma induction magnetic field generator 10 at a position outside the middle of the main traveling path 2 in the traveling direction to promote the progress of the plasma traveling in the main traveling path 2 A part 12 is provided. Further, in order to bend the straight-moving plasma into the first plasma advancing path 5, a second guide section 13 having a second plasma-induced magnetic field generation section 11 arranged in an inclined manner is provided. Further, at a position outside the base end of the first plasma advancing path 5 in the traveling direction, a third plasma induction magnetic field generating section that bends the plasma into the first plasma advancing path 5 and moves toward the plasma processing section 6 14 are provided.
- the third plasma induction magnetic field generation unit 14 is provided with a reduced diameter plasma centering throttle unit 15 for limiting the plasma to be located at the center in the first plasma advancing path.
- the plasma centering restricting portion 15 may be constituted by a guide plate which merely adds a geometric restriction, and is preferably constituted by a semi-conical guide plate whose diameter is reduced in the traveling direction.
- a fourth plasma induction magnetic field generation unit 16 is also provided in the plasma traveling direction of the third plasma induction magnetic field generation unit 14.
- the droplet collecting section 3 is formed so as to be slightly recessed leftward from the left side wall of the droplet traveling path 4.
- a plurality of buffer plates 17 are arranged obliquely with respect to the collecting section opening surface 3a.
- the droplets that have entered the droplet collecting unit 3 are configured to reach the bottom of the droplet collecting unit 3 by colliding and reflecting on the buffer plate 17.
- FIG. 2 is a cross-sectional configuration diagram of a modified example of the first embodiment of the plasma generating apparatus according to the present invention.
- the induction magnetic field generator 14a installed in the third plasma induction magnetic field generation unit 14 in FIG. 1 is replaced with a diaphragm magnetic field generator 14b.
- the aperture magnetic field generator 14b is an electromagnetic coil wound along the plasma centering aperture section 15, and the number of turns of the electromagnetic coil is gradually increased along the traveling direction of the plasma P. Therefore, The magnetic field is strengthened along the direction of travel of the plasma, and the plasma P can be narrowed with high efficiency and the force can be centered so that the plasma passes through the center axis of the plasma centering throttle section 15.
- FIG. 3 is an explanatory diagram of a plasma control mechanism in the plasma centering aperture unit 15 and the plasma processing unit 6 according to the present invention.
- a beam-shaped high-density plasma flow Ph is formed from the plasma flow (plasma) P, and the high-density plasma flow Ph is scanned over the surface of the workpiece T by the deflection coil 22.
- (3A) is an overall view of the plasma control mechanism.
- the first plasma advancing path 5 there is formed a plasma centering constricted portion 15 in which the advancing path cross-sectional diameter is gradually reduced.
- the diameter of the plasma stream P is mechanically reduced by the plasma centering throttle section 15 and is controlled (centered) so as to pass through the center of the plasma traveling path.
- the plasma centering throttle section 15 is formed of a guide wall that imposes a geometric restriction, preferably a semi-conical guide wall whose diameter decreases in the traveling direction.
- the coil constituting the diaphragm magnetic field generator 14b attached to the outer periphery of the plasma centering diaphragm unit 15 is wound along the plasma traveling direction, and the number of turns of the coil increases along the traveling direction. Have been. Since the plasma flow P is guided by the magnetic field b and proceeds, the plasma passing through the plasma centering throttle unit 15 cannot be colliding and reflected on the wall surface. In addition, most of the plasma flow P is focused as the magnetic field b is increased, and a beam-shaped high-density plasma flow Ph is formed with high efficiency.
- FIG. 3B is a cross-sectional view of the plasma flow unit 24.
- a deflection coil 22 is provided on the output side of the plasma centering aperture unit 15. Assuming that the traveling direction of the plasma flow is the Z axis and the plane perpendicular to the traveling direction is the XY plane, the high-density plasma flow Ph that has passed through the plasma centering throttle unit 15 is swept in the xy direction by the deflection coil 22. More specifically, the high-density plasma flow Ph is swept in the X direction by the magnetic field generated by the electromagnets 22a and 22b, and the high-density plasma flow Ph is swept in the Y direction by the magnetic field generated by the electromagnetic stones 22c and 22d.
- a composite magnetic field of the magnetic field in the X direction generated by the magnetic stones 22a and 22b and the magnetic field in the Y direction generated by the electromagnets 22c and 22d Sweeps the high-density plasma flow Ph in the XY direction by the field.
- the electromagnets 22a and 22b provided on the left and right and the electromagnets 22c and 22d provided on the upper and lower sides are respectively electrically linked. Saddle-shaped coils are desirable as these electromagnets 22a, 22b, 22c, 22d, but known deflection coils can be used.
- FIG. 3C is a modified example of the plasma flow unit 24.
- the sweep mechanism of the high-density plasma flow Ph is the same as in (3B).
- the cross section of the first plasma advancing path 5 is formed in a circular shape, and the electromagnets 22a, 22b, 22c, 22d are provided on the outer periphery so as to be curved along the shape.
- magnetic field generators 26a and 26b are provided on the outer periphery of the processed portion front 6a and the processed portion rear 6b.
- a uniform magnetic field b is generated near the surface of the object to be processed, and the surface of the object to be processed T is uniformly irradiated with the plasma flow P. Therefore, a more uniform coating can be formed on the object T to be processed.
- Fig. 4 is an explanatory diagram showing a state in which a droplet that travels in the arc discharge portion in the same device travels without being reflected at all by the side wall of the main traveling path.
- the oblique wall 8 has a drawlet traveling from the arc discharge section 1 in a space restricted by the restricting plate 7 so that the main traveling path 2 It is located at a position where it collides straight ahead without being reflected at any time by the side wall. Therefore, the droplet that travels straight without being reflected at any time by the side wall of the main traveling path 2 collides with the skew wall 8 and the reflection plate 9 or the gap.
- the droplet that has traveled straight without being reflected at any time by the side wall of the main traveling path 2 cannot enter the first plasma traveling path 5. Therefore, only the plasma travels in the first plasma advancing path 5, and the processing target T can be processed only by the plasma, and the droplets do not adhere to the surface of the processing target T. .
- FIG. 5 is an explanatory diagram showing a state in which advancing droplets are reflected once on the side wall of the main traveling path and proceed.
- the skew wall 8 reflects the droplet advancing from the arc discharge unit 1 once on the side wall of the main traveling path 2 in the space limited by the limiting plate 7 and collides straight. Is located in the position. Therefore, a droplet that is reflected once by the side walls of the main traveling path 2 and the droplet traveling path 4 and travels straight ahead collides with one of the inclined wall 8 and the reflecting plate 9.
- the droplet that is reflected once by the side walls of the main traveling path 2 and the droplet traveling path 4 and travels straight does not enter the first plasma traveling path 5. Therefore, only the plasma proceeds in the first plasma advancing path 5, and the object T can be subjected to the calorie treatment only with the plasma, and the droplet does not adhere to the surface of the object T.
- FIG. 6 is an explanatory diagram showing a state in which droplets traveling from the arc discharge unit in the apparatus are reflected twice on the side walls of the main traveling path and the droplet traveling path and travel.
- the skewed wall 8 reflects droplets traveling from the arc discharge section 1 twice on the side wall of the main traveling path 2 in the space restricted by the restriction plate 7 and collides straight ahead. It is located at the position where Therefore, a droplet that travels straight after being reflected twice on the side walls of the main traveling path 2 and the droplet traveling path 4 will collide with one of the inclined wall 8 and the reflector 9.
- the droplet that is reflected twice on the side walls of the main traveling path 2 and the droplet traveling path 4 and travels straight does not enter the first plasma traveling path 5.
- droplets that are non-reflective, single-reflected or double-reflected on the side wall of the traveling path collide with the sloping wall 8 or the reflecting plate 9 and reliably reach the droplet collecting section 3. Collected. Since droplets reflecting three or more times are statistically nonexistent, the droplets cannot enter the first plasma path. Therefore, only the plasma travels in the first plasma advancing path 5, and the processing target T can be processed only by the plasma, and the droplet does not adhere to the surface of the processing target T. Les ,.
- FIG. 7 is a cross-sectional configuration diagram showing the internal structure of the plasma generator of the second embodiment.
- the same members and the same portions as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.
- a first main traveling path 2 A is provided as the main traveling path 2 in a straight line from the arc discharge unit 1.
- the first main traveling path 2A also bends clockwise to extend the second main traveling path 2B.
- the point that the main traveling path 2 is composed of the first main traveling path 2A and the bent second main traveling path 2B is different from that of the second embodiment.
- the second main traveling path 2B is branched into a substantially T-shape into a droplet traveling path 4 in which the droplet force S proceeds and a first plasma traveling path 5 in which the plasma proceeds.
- a first auxiliary plasma induction magnetic field generator 18 for guiding plasma to the first plasma traveling path 5 is arranged outside the first plasma traveling path 5 and the droplet traveling path 4.
- the plasma that has traveled along the second main travel path 2B is guided toward the first plasma travel path 5 by being bent toward the first plasma travel path 5 by the bending magnetic field of the second guide portion 13 and the first auxiliary plasma induction magnetic field generator 18. It becomes.
- the plasma and the droplets travel on the second main travel path 2B that is bent and extended from the first main travel path 2A of the main travel path 2.
- the droplet can be reflected toward the droplet traveling path 4 at the point where the first main traveling path 2A bends, and travel straight.
- FIG. 8 is a cross-sectional configuration diagram showing the internal structure of the plasma generator of the third embodiment.
- the same members and the same portions as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.
- the main traveling path 2 connected to the arc discharge unit is substantially T-shaped in the droplet traveling path 4 and the first plasma traveling path 5. It is branched into a letter shape. Further, the second plasma traveling path 19 is bent by 90 degrees from the first plasma traveling path 5 toward the opposite side of the main traveling path 2 to extend, and an auxiliary droplet is provided at a branch portion of the second plasma traveling path 19. A collection unit 20 is provided.
- the first plasma traveling path 5 and the second plasma traveling path 19 are formed on the same plane, but the second plasma traveling path 19 may be extended in a direction perpendicular to the plane of the paper. is there.
- the bending angle is not limited to 90 degrees.
- the second plasma traveling path is bent in all directions in the 4 ⁇ space from the first plasma traveling path and extended. It is possible to set up.
- a fifth plasma induced magnetic field generation unit 21 is provided outside the first plasma traveling path 5. Have been killed. Note that the third plasma induction magnetic field generation unit 14 and the fourth plasma induction magnetic field generation unit 16 are provided on the second plasma traveling path 19 side.
- the plasma is advanced from the first plasma advancing path 5 to the second plasma advancing path 19 that is bent and extended. At this time, if there are any remaining droplets traveling in the first plasma traveling path 5, the droplets can be collected by the auxiliary droplet collecting unit 20 in a force S. This can further prevent the droplet from advancing to the second plasma advancing path 19.
- FIG. 9 is a cross-sectional configuration diagram showing the internal structure of the plasma generator of the fourth embodiment.
- the same members and the same parts as those in the above-described first and third embodiments are denoted by the same reference numerals, and description thereof will be omitted.
- the plasma generation device of the fourth embodiment is a modification of the fourth embodiment shown in FIG.
- the first plasma traveling path 5 is bent 90 degrees from the first plasma traveling path 5 to the opposite side of the main traveling path 2, and the middle part is further bent at an obtuse angle to extend the second plasma traveling path 19A.
- An auxiliary droplet collecting unit 20 is provided at a branch portion of the second plasma traveling path 19A.
- the first plasma traveling path 5 is bent by 90 degrees and the middle part is further bent at an obtuse angle to extend the second plasma traveling path 19A.
- the droplet does not advance to the portion bent at the obtuse angle, so that the droplet can be prevented from entering the second plasma traveling path 19A.
- FIG. 10 is a cross-sectional configuration diagram showing the internal structure of the plasma generator of the fifth embodiment.
- the plasma generator of the fifth embodiment is a modification of the plasma generator of the second embodiment shown in FIG.
- a first main path 2A is provided in a straight line.
- a second main traveling path 2B is formed to extend downwardly from the first main traveling path 2A in the figure.
- a first plasma traveling path 5 extends from the second main traveling path 2B in a substantially T-shape by bending 90 degrees. From the first plasma advancing path 5 to the second clockwise acute angle (less than 90 degrees) The plasma traveling path 19 is bent and extended. That is, the angle between the direction of the first plasma traveling path 5 and the direction of the second plasma traveling path 19 is set to an acute angle of less than 90 degrees.
- the first plasma traveling path 5 is bent at an acute angle and continues to the second plasma traveling path 19. Therefore, if there is a droplet entering the first plasma traveling path 5, the droplet is reflected at this bent portion. Then, when the kinetic energy disappears, the droplet does not reach the second plasma traveling path 19, and the entry of the droplet into the second plasma traveling path 19 can be prevented.
- FIG. 11 is a sectional view showing the internal structure of the plasma generating apparatus according to the sixth embodiment.
- the sloping wall 8 is not provided in the plasma generator of the sixth embodiment. That is, a main traveling path 2 in which the plasma and the droplet travel in a mixed state is provided, and the main traveling path 2 is divided into a droplet traveling path 4 in which the droplet proceeds and a first plasma traveling path 5 in which the plasma proceeds. It branches downward in a substantially T-shape. Further, two restriction plates 7A and 7B for restricting the progress of the plasma and the droplet are provided in the middle part of the main traveling path 2 in front and behind. The limiting plates 7A and 7B are members for directionally limiting the amount of plasma or droplet advancement. By further increasing the number of steps, the droplet amount can be particularly reduced. By providing one or more restricting plates, especially ones, it is possible to collect droplets almost completely in the drawlet collection part even if there is no sloping wall.
- a droplet collecting section 3 is provided at a distal end of the droplet traveling path 4, and an auxiliary droplet collecting section 20 is provided at a distal end of the first plasma traveling path 5.
- a second plasma traveling path 19 is provided to extend from the first plasma traveling path 5 in front of the auxiliary droplet collecting unit 20 in a direction bent from the first plasma traveling path 5.
- the buffer plate 17 has a triangular prism shape, and the buffer plate 17 is arranged so that two triangular prism side surfaces are inclined with respect to the collection unit opening surface 20a.
- the main traveling path 2 is restricted by the two restriction plates 7A and 7B in the progress of the plasma and the droplet. Collected in the collection unit 3 . Furthermore, the remaining drone entering the first plasma traveling path 5 All the droplets can be prevented from being collected by the auxiliary droplet collecting unit 20 and proceeding to the second plasma advancing path 19.
- FIG. 12 is a schematic configuration diagram showing the internal structure of the plasma generator of the seventh embodiment.
- the plasma generation device of the seventh embodiment is a modification of the plasma generation device of the first embodiment.
- a droplet accumulating portion 3b of a tapered tubular body that is reduced in diameter and closed toward the back is extended to the droplet collecting portion 3A.
- the diameter of the droplet collecting section 3A is reduced toward the back, irregular reflection of the droplet toward the droplet traveling path 4 can be reduced. it can. That is, the droplet can be reliably collected in the droplet collecting section 3A.
- FIG. 13 is a schematic configuration diagram showing the internal structure of the plasma generation device according to the eighth embodiment.
- a droplet collecting portion 3b of a curved cylindrical body is formed in a droplet collecting portion 3B at the tip of the main traveling path 2. . Irregular reflection is repeated on the inner peripheral surface of the droplet deposition portion 3b of the curved tubular body, and the divergence proceeds to the back, and eventually loses kinetic energy and stops at the end. Further, a tapered cylindrical droplet stacking portion 3b which extends toward the back and is closed by reducing the diameter thereof extends to the auxiliary droplet collecting portion 20B.
- auxiliary droplet collecting portion 20B of the tapered cylindrical body is reduced in diameter toward the back, irregular reflection of the droplet toward the second plasma advancing path 19 can be reduced. That is, the droplets can be reliably collected in the auxiliary droplet collecting section 20B.
- the plasma generating apparatus according to the present invention can be mainly used for a plasma processing apparatus used for industrial use.
- it can be suitably used for surface treatment for forming a film on the surface of a metal or non-metal workpiece.
- the material and the shape of the object to be treated can be arbitrarily determined.
- the protective film can be formed excellently on the surface of the object.
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Abstract
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Cited By (6)
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WO2008038700A1 (fr) * | 2006-09-30 | 2008-04-03 | Ferrotec Corporation | Appareil générateur de plasma de type à rayon élargi |
US20100059369A1 (en) * | 2007-03-30 | 2010-03-11 | Ferrotec Corporation | Plasma generating apparatus rendered electrically neutral on the periphery of plasma gun |
WO2010113544A1 (ja) * | 2009-03-31 | 2010-10-07 | 株式会社フェローテック | 絶縁体介装型プラズマ処理装置 |
CN101925247A (zh) * | 2009-06-10 | 2010-12-22 | 富士通株式会社 | 膜沉积装置和膜沉积方法 |
WO2011001739A1 (ja) * | 2009-07-01 | 2011-01-06 | 株式会社フェローテック | 陽極壁多分割型プラズマ発生装置及びプラズマ処理装置 |
CN103119684A (zh) * | 2010-10-01 | 2013-05-22 | 纳峰科技私人有限公司 | 用于从等离子束中移除大粒子的过滤器 |
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WO2008038700A1 (fr) * | 2006-09-30 | 2008-04-03 | Ferrotec Corporation | Appareil générateur de plasma de type à rayon élargi |
JP2008091184A (ja) * | 2006-09-30 | 2008-04-17 | Ferrotec Corp | 拡径管型プラズマ生成装置 |
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US20100059369A1 (en) * | 2007-03-30 | 2010-03-11 | Ferrotec Corporation | Plasma generating apparatus rendered electrically neutral on the periphery of plasma gun |
JP2010236032A (ja) * | 2009-03-31 | 2010-10-21 | Ferrotec Corp | 絶縁体介装型プラズマ処理装置 |
JP4576467B2 (ja) * | 2009-03-31 | 2010-11-10 | 株式会社フェローテック | 絶縁体介装型プラズマ処理装置 |
US8999122B2 (en) | 2009-03-31 | 2015-04-07 | Ferrotec Corporation | Insulator interposed type plasma processing apparatus |
CN102209799B (zh) * | 2009-03-31 | 2013-08-14 | 日本磁性技术株式会社 | 绝缘体插装型等离子体处理装置 |
WO2010113544A1 (ja) * | 2009-03-31 | 2010-10-07 | 株式会社フェローテック | 絶縁体介装型プラズマ処理装置 |
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CN101925247A (zh) * | 2009-06-10 | 2010-12-22 | 富士通株式会社 | 膜沉积装置和膜沉积方法 |
CN101925247B (zh) * | 2009-06-10 | 2014-04-23 | 富士通株式会社 | 膜沉积装置和膜沉积方法 |
JP2011012307A (ja) * | 2009-07-01 | 2011-01-20 | Ferrotec Corp | 陽極壁多分割型プラズマ発生装置及びプラズマ処理装置 |
CN102471869A (zh) * | 2009-07-01 | 2012-05-23 | 日本磁性技术株式会社 | 阳极壁多分割型等离子发生装置及等离子处理装置 |
JP4690477B2 (ja) * | 2009-07-01 | 2011-06-01 | 株式会社フェローテック | 陽極壁多分割型プラズマ発生装置及びプラズマ処理装置 |
WO2011001739A1 (ja) * | 2009-07-01 | 2011-01-06 | 株式会社フェローテック | 陽極壁多分割型プラズマ発生装置及びプラズマ処理装置 |
CN103119684A (zh) * | 2010-10-01 | 2013-05-22 | 纳峰科技私人有限公司 | 用于从等离子束中移除大粒子的过滤器 |
JP2013540200A (ja) * | 2010-10-01 | 2013-10-31 | ナノフィルム テクノロジーズ インターナショナル ピーティーイー リミテッド | プラズマビームからマクロ粒子を除去するためのフィルタ |
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