WO2004006319A1 - プラズマ処理装置 - Google Patents
プラズマ処理装置 Download PDFInfo
- Publication number
- WO2004006319A1 WO2004006319A1 PCT/JP2003/008491 JP0308491W WO2004006319A1 WO 2004006319 A1 WO2004006319 A1 WO 2004006319A1 JP 0308491 W JP0308491 W JP 0308491W WO 2004006319 A1 WO2004006319 A1 WO 2004006319A1
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- WO
- WIPO (PCT)
- Prior art keywords
- plasma
- processing apparatus
- processing
- gas
- plasma gas
- Prior art date
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- 239000000758 substrate Substances 0.000 claims abstract description 39
- 239000000919 ceramic Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 116
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- 238000000034 method Methods 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 6
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- 229910010293 ceramic material Inorganic materials 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005121 nitriding Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45563—Gas nozzles
- C23C16/45568—Porous nozzles
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/50—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
- C23C16/511—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 using microwave discharges
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32192—Microwave generated discharge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32192—Microwave generated discharge
- H01J37/32211—Means for coupling power to the plasma
- H01J37/32238—Windows
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/3244—Gas supply means
Definitions
- the present invention generally relates to a plasma processing apparatus, and more particularly to a microphone mouth-wave plasma processing apparatus.
- the plasma processing process and the plasma processing apparatus are used for manufacturing ultra-miniaturized semiconductor devices having a gate length close to 0.1 ⁇ m or less, which is called a recent so-called deep sub-micron element or deep sub-quarter micron element. This is an indispensable technology for manufacturing high-resolution flat-panel display devices including liquid crystal display devices.
- various plasma excitation methods have been used as plasma processing apparatuses used for manufacturing semiconductor devices and liquid crystal display devices.
- a parallel plate type high frequency excitation plasma processing apparatus or an inductively coupled plasma processing apparatus has been used.
- these conventional plasma processing systems have non-uniform plasma formation and limited areas with high electron densities, so that uniform processing can be performed over the entire surface of the substrate at a high processing speed or throughput.
- a microwave plasma processing apparatus using a high-density plasma excited by a microphone mouth-wave electric field without using a DC magnetic field has been conventionally proposed.
- a microwave is introduced into a processing vessel from a planar antenna (radial line slot antenna) having a number of slots arranged to generate a uniform microphone mouth wave, and the microwave electric field is applied to the inside of the vacuum vessel.
- a plasma processing apparatus configured to excite plasma by ionizing such a gas.
- Microphone mouth-wave plasma excited by such a method covers a wide area just below the antenna.
- the microphone mouth wave plasma formed by such a method excites the plasma by the microphone mouth wave, so that the number of electrons is low, and damage to the substrate to be processed and metal contamination can be avoided. Furthermore, since uniform plasma can be easily excited even on a large-area substrate, it can be easily adapted to a semiconductor device manufacturing process using a large-diameter semiconductor substrate and a large-sized liquid crystal display device. Background art
- FIG. 1A and 1B show the configuration of a conventional microwave mouth-wave plasma processing apparatus 100 using such a radial line slot antenna.
- FIG. 1A is a cross-sectional view of the microphone mouth-wave plasma processing apparatus 100
- FIG. 1B is a view illustrating the configuration of a radio antenna line slot antenna.
- a microphone mouth-wave plasma processing apparatus 100 has a processing chamber 101 evacuated from a plurality of exhaust ports 1 16, and a substrate to be processed is provided in the processing chamber 101.
- a holding table 1 15 for holding 1 1 4 is formed.
- a ring-shaped space 101A is formed around the holding table 115, and the plurality of exhaust ports 116 are formed in the ring.
- the processing chamber 101 is formed at regular intervals so as to communicate with the space 101A, that is, axially symmetric with respect to the substrate to be processed, so that the processing chamber 101 is formed with The air can be exhausted uniformly.
- the processing chamber 101 is made of a low-loss dielectric as a part of the processing chamber 101 at a position corresponding to the substrate 114 on the holding table 115.
- a plate-like shower plate 103 having a large number of openings 107 is formed via a shearing / ringing 109, and also has a low loss outside the shower plate 103.
- a cover plate 102 made of a dielectric is provided via another seal ring 108.
- a plasma gas passage 104 is formed on the upper surface of the shower plate 103, and each of the plurality of openings 107 is formed so as to communicate with the plasma gas passage 104. ing. Further, inside the shower plate 103, A plasma gas supply passage 108 communicating with a plasma gas supply port 105 provided on the outer wall of the processing vessel 101 is formed, and A supplied to the plasma gas supply port 105 is formed. The plasma gas such as r or Kr is supplied from the supply passage 108 to the opening 107 via the passage 104, and the processing vessel 10 It is emitted into the space 101 B directly below the shower plate 103 inside 1 at a substantially uniform concentration.
- An antenna 110 is provided on the processing vessel 101, further outside the ttflE cover plate 102, at a distance of 4-5 mm from the force par plate 102, a radial line slot having a thigh surface as shown in FIG.
- An antenna 110 is provided.
- the radiator line antenna 110 is connected to an external microphone mouth wave source (not shown) via a coaxial waveguide 110 A, and the microwave from the microwave source causes the space 110 to be closed. Excites the plasma gas released to 1B.
- the gap between the cover plate 102 and the radiation surface of the radial line slot antenna 110 is filled with the atmosphere.
- the radial line slot antenna 110 includes a flat disk-shaped antenna main body 110 B connected to the outer waveguide of the coaxial waveguide 110 A, and the antenna main body 110. It consists of a number of slots 110a shown in FIG. 1B formed in the opening of B and a number of slots 110b perpendicular thereto, and a »f plate 110C formed thereon. A delay plate 110D made of a dielectric plate having a constant thickness is inserted between the antenna body 110B and the 3 ⁇ 4
- the microwaves fed from the coaxial waveguide 110 pass between the disc-shaped antenna body 110B and the radiation plate 110C.
- a uniform high-density plasma is formed in the space 101B immediately below the ttlt self-sharing plate 103. This The high-density plasma formed as described above has a low electron temperature, so that the substrate to be processed 114 is not damaged, and metal contamination due to sputtering of the vessel wall of the processing container 101 occurs. Not even.
- an external processing gas source (not shown) is provided between the shower plate 103 and the substrate 114 in the processing vessel 101.
- a conductor structure 111 formed with a number of nozzles 113 supplying a processing gas through a processing gas passage 112 formed in the processing container 101 is formed, and the nozzle 1 Each of 13 discharges the supplied processing gas into a space 101C between the vertebral structure 111 and the substrate to be processed 114. That is, the conductor structure 111 functions as a processing gas supply unit.
- the conductor structure 111 constituting the tdf self-processing gas supply unit the plasma formed in the space 101B between the adjacent nozzles 113 and 113 is formed in the space 101b.
- An opening having a size large enough to efficiently pass therethrough is formed by diffusion from 101 B to ⁇ space 101 C.
- the processing gas is released from the processing gas supply unit 111 to the space 101C through the horns 113 as described above, the released processing gas is transferred to the space 101C.
- uniform plasma processing is performed on the substrate to be processed 114 efficiently and at high speed without damaging the substrate and the element structure on the substrate. And without contaminating the substrate.
- the microwave emitted from the radial line slot antenna 110 is blocked by the processing gas supply unit 111 made of a conductor, and does not damage the substrate 114 to be processed.
- plasma processing apparatus 100 it is important to excite plasma uniformly at high density into the space 101 B directly below the shower plate 103. is there.
- plasma is easily excited in a space other than the space 101 B where plasma is easily excited, for example, in the plasma gas passage 104 where the microphone mouth wave electric field is strong and the plasma is easily excited, or in the opening 107. It is important that they are not excited.
- the plasma when the plasma is actually excited in the present apparatus 10, depending on the conditions of the substrate processing, the plasma is generated in the plasma gas passage 104 and the opening 107. May be excited. If plasma is excited in the plasma passage 104 and the opening 107, microwave power is consumed, and the plasma density in the space 101B decreases. Further, since a difference occurs in the plasma density between the area immediately below the opening 107 and the area far from the opening 107, the plasma density in the entire space 101B, which is the plasma excitation space, is not uniform. If this occurs, a ray problem will occur. Disclosure of the invention
- an object of the present invention is to provide a new and useful plasma processing apparatus that solves the above-mentioned problems.
- a specific object of the present invention is to excite plasma having a high density and uniformity in a desired space without exciting the plasma in a space in the path for introducing the plasma gas.
- Another subject of the present invention is:
- a processing container having a holding table for holding the substrate to be processed, defined by ⁇ , an exhaust system coupled to the processing container,
- a microwave transmission window provided as a part of the wall, on the processing container, so as to face the substrate to be processed on the holding table,
- a plasma gas supply unit that supplies plasma gas into the processing container
- a microwave antenna provided on the knitting processing container corresponding to the microwave
- the following measures are taken to prevent plasma excitation in a space other than a plasma excitation space for exciting plasma.
- Plasma excitation was prevented by setting the plasma gas pressure in the plasma gas passage so that plasma was not excited.
- the shower plate where the plasma gas is discharged, the shower plate is blown through the pores of the porous medium. Due to the mechanism for supplying the Kursa gas, electrons accelerated by the microwave when passing through the narrow pore space collide with the inner wall of the pore space, and the acceleration required for plasma excitation is not given. Plasma excitation was prevented. As a result, it becomes edible to excite uniform plasma with high density in the desired plasma excitation space.
- Figures 1A and 1B show the configuration of a conventional microwave plasma processing apparatus using a radial line slot antenna
- FIGS. 2A and 2B are diagrams showing a configuration of a microwave plasma processing apparatus according to a first embodiment of the present invention
- Fig. 3 shows the conditions of the microwave electric field for exciting the microwave plasma and the pressure of the plasma gas Ar;
- FIGS. 4A and 4B show the configuration of a processing gas supply structure according to a second embodiment of the present invention
- FIGS. 5A and 5B show the configuration of a plasma processing unit 3 according to a third embodiment of the present invention.
- FIGS. 6A and 6B show a configuration of a plasma processing apparatus according to a fourth embodiment of the present invention
- FIGS. 7A and 7B show a configuration of a plasma processing apparatus according to a fifth embodiment of the present invention.
- FIGS. 8A and 8B are views showing the configuration of a plasma processing apparatus according to a sixth embodiment of the present invention.
- FIGS. 2A and 2B show a configuration of a microwave plasma processing apparatus 200 according to the first embodiment of the present invention.
- the same parts as those described above are denoted by the same reference numerals, and description thereof will be omitted.
- a porous medium such as a porous ceramic is used. It is replaced by a disk-shaped shear plate 201 formed of A12O3 sintered at normal pressure as a mix material.
- a plasma gas passage 202 is formed on the upper surface of the shower plate 201.
- the plasma gas such as Ar or Kr supplied to the plasma gas supply port 105 passes through the plasma gas flow path 202 and passes through the pores of the porous medium of the shower plate 202. It is uniformly supplied into the space 101B immediately below the shower plate.
- the plasma gas passage 202 has a strong microphone mouth wave electric field, and plasma is easily excited. Therefore, it is necessary to set the plasma gas passage 202 to a pressure at which microwave plasma is not excited.
- FIG. 3 shows a region where the microwave plasma is excited when the strength of the microwave electric field and the pressure of the plasma excitation gas Ar are varied.
- the microwave frequency is 2.45 G as an example.
- the region indicated by region A in the figure is a region where plasma is excited. Microwave mouth-wave plasma is excited at the microwave electric field strength and Ar pressure in the region A.
- the microphone mouthpiece plasma is ignited at a wave intensity of about 0.3 W / cm2, and the microwave mouthpiece is almost at a minimum microwave intensity.
- the plasma excites.
- the plasma gas passage is made to be about 6.67 KPa to about 13.3 KPa (about 50 torr to about 100 torr), so that the inside of the plasma gas passage 202 is formed. It prevents the plasma from being excited.
- the space 101 B which is a plasma excitation space
- the plasma gas flow path 202 which is a plasma gas supply path
- the plasma gas is supplied from the plasma gas flow path 202 to the space 101 B through the inside of the pores of the porous medium of the shower plate 201. Since there is no space large enough to excite the plasma in the pores, the plasma is not excited. In other words, even if the electron force S is accelerated by microwaves in the above-mentioned pores, Plasma is not excited because the electrons collide with the outer wall of the pores before being accelerated to the greatest extent.
- plasma is not excited in the shower plate 201, which is a plasma gas introduction path leading to the space 101B, so that in the space 101B, High-density and uniform plasma can be excited.
- FIGS. 4A and 4B show a configuration of a microwave plasma processing apparatus 20OA according to a second embodiment of the present invention.
- the same reference numerals are given to the parts described above, and the description is omitted.
- the lower shower plate 111 is removed. Since the lower shower plate 111 is omitted, it is not possible to supply a processing gas separately from the plasma gas to perform film-forming etching.
- An oxide film / nitride film or an oxynitride film can be formed on the surface of the substrate to be processed by supplying a gas or a nitriding gas.
- 5A and 5B show the configuration of a microwave plasma processing apparatus 10 according to a third embodiment of the present invention.
- the microphone mouth wave plasma processing apparatus 10 is provided in the processing container 11 and the processing container 11, and holds the substrate to be processed 12 by electrostatic chuck. isostatic pressure method and a a 1 N or a 1 2 0 3 holding base 1 3 made of formed by (HIP), enclose the supporting table 1 3 in the processing container 1 1 No space 1 1 A at equal intervals, that is, with respect to the substrate 12 to be processed on the holder 13
- Exhaust ports 11a are formed in at least two places, preferably three or more places in a substantially axially symmetric relationship.
- the processing vessel 11 is evacuated and depressurized by a vacuum pump through a powerful exhaust port 11a.
- the processing container 11 is preferably made of austenitic stainless steel containing A1, and a protective film made of aluminum oxide is formed on the inner wall surface by oxidation treatment.
- a portion of the processing vessel 11 corresponding to the substrate to be processed 12 is provided with a disk-shaped disk formed of a porous medium such as A1O3 sintered at room temperature, which is a porous ceramic material.
- shower plate 14 force formed as part of ⁇ .
- the shower plate 1 4 is mounted via a seal ring 1 1 s on the processing vessel 1 1, further ttif cover of dense A 1 2 ⁇ 3 formed by HIP treatment on his own shower plate 1 4 Plate 15 is provided.
- Such HIP method A 1 2O3 cover plate 1 5 formed by is formed by one using the Y 2 O 3 as a sintering aid, porosity 0. Substantially include pores or pinholes in 0 3% In addition, it reaches 3 OW / m ⁇ K, and has very large thermal conductivity as a ceramic. Also, as described in Iff !, since the airtightness between the processing vessel 11 and the outside is achieved by pressing the seal ring 11 1 s against the cover plate 15, the porous medium having a low mechanical strength is used.
- the shower plate 14 is weighted and structured. On the side of the shower plate 14 that is in contact with the ttrf self-cover plate 15, a concave plasma gas flow path 14 A serving as a plasma gas flow path is formed, and the plasma gas flow path 14 A is provided with the shower gas. It is formed inside the plate 14 and is connected to a later-described plasma gas introduction path 21 A formed above the shower plate.
- the shower plate 14 is held by an overhang 11 b formed on the inner wall of the processing container 11, and a portion of the overhang 11 b that holds the shower plate 14 is provided. Roundness is formed to suppress abnormal discharge. Therefore, the plasma gas such as Ar or r supplied to the plasma gas introduction path 21 A passed through the plasma gas flow path 14 A inside the shower plate 14. Thereafter, the air is uniformly supplied into the space 11B immediately below the shower plate through the pores of the porous medium of the shower plate 14. In addition, a seal ring 15 s is inserted into an engagement portion between the plasma gas introduction path 21 A and the cover plate 15, and the plasma gas is sealed.
- a radial line slot antenna 20 is provided on the force par plate 15.
- the radio antenna slot antenna 20 is a disc-shaped slot plate 16 having a large number of slots 16 a and 16 formed in close contact with the cover plate 15 and shown in FIG. an antenna the body 17 consists of a 1 2 0 3, S i 3 N 4, S i oN or low-loss dielectric material such as S i O2 sandwiched between said slot plate 16 antenna body 17 It has a retardation plate 18. Further, a plasma gas / microphone mouth wave introducing section 21 is provided above the radial line slot antenna 20.
- the plasma gas / microphone mouth wave introduction unit 21 is a circular or rectangular cross section connected to the antenna main body 17 and has a microwave introduction path inside, 21 C, a rectangular or circular cross section microwave introduction unit 21B, and approximately It is composed of a plasma gas introduction passage 21A into which a plasma gas such as Ar or Kr is introduced in a cylindrical shape.
- the radial slot line antenna 20 is mounted on the processing vessel 11 via a seal ring 11 u, and the radial line slot antenna 20 has the microphone mouth wave introducing section 21 of the plasma gas / microphone mouth wave introducing section 21.
- a microwave with a frequency of 2.45 GHz or 8.3 GHz is supplied from an external microphone mouth wave source (not shown) connected to B.
- the supplied microphone mouth wave is passed through the cover plate 15 and the shower plate 14 from the slots 16 a and 16 b on the slot plate 16 into the processing vessel 11, and in the space 11 B immediately below the shower plate 14,
- the plasma is excited in the plasma gas supplied from the shower plate 14.
- the cover first plate 15 and the shower plate 14 is formed by A l 2_Rei 3, it acts as an efficient microphone port wave transmission window.
- the pressure of the plasma gas in the plasma gas flow path 14A is about 6.67 KPa to 13.3 KPa in order to avoid the plasma being excited in the tiff self-plasma gas flow path 14A. (About 50 ⁇ ; LOOTorr).
- the space 11B which is a plasma excitation space
- the plasma gas flow path 14A which is a plasma gas supply path
- the shower plate which is a porous medium. It is configured to be isolated by 14.
- the plasma gas is supplied from the plasma gas flow path to the space 11B through the inside of the pores of the shear plate 14; however, in the pores, the plasma gas is sufficient to excite plasma. Since there is no space, no plasma is excited.
- the processing vessel 11 engaged with the slot plate 16 is used.
- a ring-shaped groove 11 g is formed in a part of the upper surface of the slot plate.
- the slot plate 16 is formed.
- the gap formed between the antenna and the cover plate 15 is decompressed, and the radial line slot antenna 20 can be pressed against the above-mentioned par plate 15 by atmospheric pressure.
- a gap may be formed for various reasons other than the force including the slots 16 a and 16 b formed in the slit plate 16.
- Such a gap is sealed by a seal ring 11 u between the radial line slot antenna 20 and the processing container 11.
- the cover plate 15 by filling the gap between the slot plate 16 and the cover plate 15 with an inert gas having a low molecular weight through the exhaust port 11 G and the groove 11 g, the cover plate 15 The heat transfer from the gas to the mouth plate 16 can be promoted.
- an inert gas it is preferable to use He, which has a high thermal conductivity and a high ionization strength. Filling the gap with He is preferably set to a pressure of about 0.8 atm.
- the exhaust port 1.1 G is evacuated to exhaust the groove 11 g and fill the groove 11 g with inert gas. Loop 1 IV is connected.
- the waveguide 21 C of the gas / plasma introduction unit 21 was connected to the disk-shaped antenna main body 17, and the plasma gas introduction unit 21 A was formed on the slow wave plate 18.
- the opening 18A and the opening 16c formed in the slot plate 16 pass through and are connected to the above-mentioned force plate opening 15A.
- the microwave supplied to the microwave introduction unit 21B is passed through the waveguide 21C in the radial direction between the antenna body 17 and the slot plate 16 while the ItrlB slot Radiated from 16a, 16b.
- FIG. 5B shows the slots 16a and 16 formed on the slit plate 16.
- the slots 16a are arranged concentrically, and corresponding to each slot 16a, a slot 16b orthogonal thereto is also formed concentrically.
- the slots 16a and 16b are formed in the radial direction of the slot plate 16 at intervals corresponding to the wavelength of the microphone mouth wave compressed by the delay plate 18; As a result, the microwave is converted from the slot plate 16 into a substantially plane wave and applied to the thigh.
- the slots 16a and 16b are formed in a mutually orthogonal relationship, the microwave radiated in this manner forms a circularly polarized wave including two orthogonally polarized components. I do.
- an opening 16c is provided for passing the plasma gas introduction path 21A.
- a cooling block 19 having a cooling water passage 19A is formed on the f! IlB antenna main body 17, and the cooling block 19 is formed.
- the cooling water passage 19A By cooling with the cooling water in the cooling water passage 19A, the heat accumulated in the shower plate 14 is absorbed via the radial line slot antenna 20.
- the cooling water passage 1 9 Alpha is formed on the scan Pairaru form on said cooling block 1 9, cooling water which is preferably a controlled and oxidation-reduction potential is achieved by eliminating oxygen dissolved in it to Paburingu H 2 gas Passed through.
- processing gas is supplied from the processing gas injection port 1 1 r provided in A processing gas supply structure 31 having a grid-like processing gas passage for discharging the gas from a large number of processing gas nozzle openings 31A is provided, and a space between the processing gas supply structure 31 and the processing target substrate 12 is provided.
- space 11C a desired uniform substrate processing is performed.
- substrate processing includes plasma oxidation, plasma nitridation, plasma oxynitridation, and plasma CVD.
- a fluorocarbon gas such as C 4 F 8 , C 5 F 8 or C 4 F 6 or an F type or C 1 type is provided in the processing gas supply structure 31 to the space 11 C.
- a fluorocarbon gas such as C 4 F 8 , C 5 F 8 or C 4 F 6 or an F type or C 1 type is provided in the processing gas supply structure 31 to the space 11 C.
- the outer wall of the processing vessel 11 is heated to a temperature of about 150 ° C. so that reaction by-products and the like adhere to the inner wall of the processing vessel.
- FIGS. 6A and 6B show an example of a microwave plasma processing apparatus 10A according to a fourth embodiment of the present invention.
- the same reference numerals are given to the parts described above, and the description is omitted.
- a dense A formed by the HIP method was used. 1 2 0 3 consists, shower plate 4 0 at least one or more openings 4 0 beta is formed is installed. On the side of the shower plate 40 that is in contact with the cover plate 15, a plasma gas flow path 4 OA is formed, which is a recess that communicates with each of the openings 40 ′ and serves as a plasma gas flow path. Wherein the each of the openings 4 0 B, the plasma gas introducing member 4 1 consisting of A 1 2 0 3 sintered at normal pressure in a porous medium, for example, porous ceramics are ⁇ .
- the plasma gas such as Ar, Kr, etc.
- the plasma gas passes through the pores of the porous medium of the plasma gas introduction component 41, and becomes substantially uniform in the IfrlB space 11 B. Supplied.
- the plasma gas Since the plasma is not excited in the gas passage 4OA and the plasma gas introduction component 41, it is possible to excite high-density and uniform plasma in the space 11B.
- FIGS. 7A and 7B show an example of a microphone mouth-wave plasma processing apparatus 10B according to a fifth embodiment of the present invention.
- the same reference numerals are given to the parts described above, and the description is omitted.
- the lower shower plate 31 is removed. Further, the overhang portion 11b holding the shower plate 14 is rounded over the entire surface.
- the lower shower plate 31 is omitted, so that the processing gas cannot be supplied separately from the plasma gas to perform film formation or etching.
- an oxidizing gas or a nitriding gas together with the plasma gas from 14, it is possible to form an oxide film / nitrided film on a surface of the substrate to be processed, and in some cases an oxynitride film.
- FIG. 8A and 8B show an example of a microwave plasma processing apparatus 10C according to a sixth embodiment of the present invention.
- the same reference numerals are given to the parts described above, and the description is omitted.
- the dense A 1 plasma formed by the HIP method is used. consists 2 .theta.3, the shower plate 4 0 at least one or more openings 4 0 beta is formed, the sintering a 1 2 [Theta] 3, which is a porous medium, for example a porous ceramic material is inserted in the 4 0 beta Plasma gas introduction parts 4 1 A plasma gas such as Ar, r is supplied to the processing vessel 11.
- the lower shower plate 31 is removed as in the case of 10B. Further, a roundness is formed on the entire surface of the overhang portion 11b holding the shower plate 14.
- the lower shower plate 31 is omitted, so that it is not possible to supply a processing gas separately from the plasma gas to perform film formation or etching.
- a processing gas separately from the plasma gas to perform film formation or etching.
- the porous medium is AI 2 O 3, which is a porous ceramic material and sintered at normal pressure, but is not limited to this material.
- a space for exciting plasma and a plasma gas introduction path for exciting plasma are separated by a porous medium, for example, a porous ceramic material.
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Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60335951T DE60335951D1 (de) | 2002-07-05 | 2003-07-03 | Plasmaverarbeitungsgerät |
KR1020047005933A KR100614065B1 (ko) | 2002-07-05 | 2003-07-03 | 플라즈마 처리 장치 |
EP03741183A EP1521297B1 (en) | 2002-07-05 | 2003-07-03 | Plasma processing equipment |
AU2003281401A AU2003281401A1 (en) | 2002-07-05 | 2003-07-03 | Plasma processing equipment |
US10/493,946 US20050092437A1 (en) | 2002-07-05 | 2003-07-03 | Plasma processing equipment |
US12/379,805 US20090229755A1 (en) | 2002-07-05 | 2009-03-02 | Plasma processing apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-197227 | 2002-07-05 | ||
JP2002197227A JP4540926B2 (ja) | 2002-07-05 | 2002-07-05 | プラズマ処理装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/379,805 Division US20090229755A1 (en) | 2002-07-05 | 2009-03-02 | Plasma processing apparatus |
Publications (1)
Publication Number | Publication Date |
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WO2004006319A1 true WO2004006319A1 (ja) | 2004-01-15 |
Family
ID=30112393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/008491 WO2004006319A1 (ja) | 2002-07-05 | 2003-07-03 | プラズマ処理装置 |
Country Status (9)
Country | Link |
---|---|
US (2) | US20050092437A1 (ja) |
EP (1) | EP1521297B1 (ja) |
JP (1) | JP4540926B2 (ja) |
KR (1) | KR100614065B1 (ja) |
CN (1) | CN100405557C (ja) |
AU (1) | AU2003281401A1 (ja) |
DE (1) | DE60335951D1 (ja) |
TW (1) | TWI239052B (ja) |
WO (1) | WO2004006319A1 (ja) |
Cited By (1)
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US8372200B2 (en) | 2006-06-13 | 2013-02-12 | Tokyo Electron Ltd. | Shower plate, method for manufacturing the shower plate, plasma processing apparatus using the shower plate, plasma processing method and electronic device manufacturing method |
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DE102004039969A1 (de) * | 2004-08-18 | 2006-02-23 | Leybold Optics Gmbh | Plasmaquellenvorrichtung, Anordnung mit einer Plasmaquellenvorrichtung sowie Abstrahleinheit für eine Plasmaquellenvorrichtung |
JP4350695B2 (ja) * | 2004-12-01 | 2009-10-21 | 株式会社フューチャービジョン | 処理装置 |
JP2006244891A (ja) * | 2005-03-04 | 2006-09-14 | Tokyo Electron Ltd | マイクロ波プラズマ処理装置 |
JP5082229B2 (ja) | 2005-11-29 | 2012-11-28 | 東京エレクトロン株式会社 | プラズマ処理装置 |
JP5082459B2 (ja) * | 2006-01-20 | 2012-11-28 | 東京エレクトロン株式会社 | プラズマ処理装置及び天板の製造方法 |
US20080254220A1 (en) * | 2006-01-20 | 2008-10-16 | Tokyo Electron Limited | Plasma processing apparatus |
KR100954128B1 (ko) * | 2006-01-20 | 2010-04-20 | 도쿄엘렉트론가부시키가이샤 | 플라즈마 처리 장치, 플라즈마 처리 장치에 이용되는 천판 및, 천판의 제조 방법 |
JP4915985B2 (ja) * | 2006-02-06 | 2012-04-11 | 東京エレクトロン株式会社 | プラズマ処理装置およびプラズマ処理方法 |
KR100980529B1 (ko) * | 2006-03-27 | 2010-09-06 | 도쿄엘렉트론가부시키가이샤 | 플라즈마 처리 장치 |
JP5463536B2 (ja) * | 2006-07-20 | 2014-04-09 | 北陸成型工業株式会社 | シャワープレート及びその製造方法、並びにそのシャワープレートを用いたプラズマ処理装置、プラズマ処理方法及び電子装置の製造方法 |
JP5004271B2 (ja) * | 2006-09-29 | 2012-08-22 | 東京エレクトロン株式会社 | マイクロ波プラズマ処理装置、誘電体窓の製造方法およびマイクロ波プラズマ処理方法 |
JP5010234B2 (ja) | 2006-10-23 | 2012-08-29 | 北陸成型工業株式会社 | ガス放出孔部材を一体焼結したシャワープレートおよびその製造方法 |
JP5058727B2 (ja) * | 2007-09-06 | 2012-10-24 | 東京エレクトロン株式会社 | 天板構造及びこれを用いたプラズマ処理装置 |
KR101111207B1 (ko) | 2009-05-20 | 2012-02-20 | 주식회사 에이피시스 | 플라즈마 발생장치 |
JP6101467B2 (ja) * | 2012-10-04 | 2017-03-22 | 東京エレクトロン株式会社 | 成膜方法及び成膜装置 |
US20150118416A1 (en) * | 2013-10-31 | 2015-04-30 | Semes Co., Ltd. | Substrate treating apparatus and method |
CN104357810A (zh) * | 2014-11-04 | 2015-02-18 | 大连理工常州研究院有限公司 | 一种同轴微波等离子体沉积薄膜的设备 |
JP6462449B2 (ja) * | 2015-03-26 | 2019-01-30 | 京セラ株式会社 | 高周波用窓部材および半導体製造装置用部材ならびにフラットパネルディスプレイ(fpd)製造装置用部材 |
EP3674440A1 (en) * | 2016-02-12 | 2020-07-01 | Applied Materials, Inc. | Vacuum processing system and methods therefor |
US11776793B2 (en) | 2020-11-13 | 2023-10-03 | Applied Materials, Inc. | Plasma source with ceramic electrode plate |
CN112663029B (zh) * | 2020-11-30 | 2021-10-19 | 上海征世科技股份有限公司 | 一种微波等离子体化学气相沉积装置及其真空反应室 |
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-
2003
- 2003-07-03 WO PCT/JP2003/008491 patent/WO2004006319A1/ja active Application Filing
- 2003-07-03 AU AU2003281401A patent/AU2003281401A1/en not_active Abandoned
- 2003-07-03 CN CNB038006855A patent/CN100405557C/zh not_active Expired - Fee Related
- 2003-07-03 DE DE60335951T patent/DE60335951D1/de not_active Expired - Lifetime
- 2003-07-03 KR KR1020047005933A patent/KR100614065B1/ko not_active IP Right Cessation
- 2003-07-03 EP EP03741183A patent/EP1521297B1/en not_active Expired - Fee Related
- 2003-07-03 US US10/493,946 patent/US20050092437A1/en not_active Abandoned
- 2003-07-04 TW TW092118344A patent/TWI239052B/zh not_active IP Right Cessation
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2009
- 2009-03-02 US US12/379,805 patent/US20090229755A1/en not_active Abandoned
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US8372200B2 (en) | 2006-06-13 | 2013-02-12 | Tokyo Electron Ltd. | Shower plate, method for manufacturing the shower plate, plasma processing apparatus using the shower plate, plasma processing method and electronic device manufacturing method |
Also Published As
Publication number | Publication date |
---|---|
EP1521297A1 (en) | 2005-04-06 |
CN100405557C (zh) | 2008-07-23 |
KR20040045900A (ko) | 2004-06-02 |
JP2004039972A (ja) | 2004-02-05 |
DE60335951D1 (de) | 2011-03-17 |
CN1533596A (zh) | 2004-09-29 |
US20090229755A1 (en) | 2009-09-17 |
US20050092437A1 (en) | 2005-05-05 |
TW200414350A (en) | 2004-08-01 |
EP1521297B1 (en) | 2011-02-02 |
TWI239052B (en) | 2005-09-01 |
KR100614065B1 (ko) | 2006-08-22 |
JP4540926B2 (ja) | 2010-09-08 |
AU2003281401A1 (en) | 2004-01-23 |
EP1521297A4 (en) | 2006-06-07 |
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