WO2006041077A1 - 基板処理方法および基板処理装置 - Google Patents
基板処理方法および基板処理装置 Download PDFInfo
- Publication number
- WO2006041077A1 WO2006041077A1 PCT/JP2005/018770 JP2005018770W WO2006041077A1 WO 2006041077 A1 WO2006041077 A1 WO 2006041077A1 JP 2005018770 W JP2005018770 W JP 2005018770W WO 2006041077 A1 WO2006041077 A1 WO 2006041077A1
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- WIPO (PCT)
- Prior art keywords
- substrate
- nozzle
- processing
- liquid
- fluid
- Prior art date
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 148
- 238000003672 processing method Methods 0.000 title claims description 21
- 239000007788 liquid Substances 0.000 claims abstract description 128
- 239000012530 fluid Substances 0.000 claims abstract description 88
- 238000001035 drying Methods 0.000 claims abstract description 65
- 239000011261 inert gas Substances 0.000 claims abstract description 59
- 238000000034 method Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000003595 mist Substances 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 42
- 229910001873 dinitrogen Inorganic materials 0.000 description 40
- 239000000126 substance Substances 0.000 description 25
- 230000003028 elevating effect Effects 0.000 description 9
- 238000002156 mixing Methods 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000007865 diluting Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 235000014066 European mistletoe Nutrition 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 235000012300 Rhipsalis cassutha Nutrition 0.000 description 1
- 241000221012 Viscum Species 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/005—Drying solid materials or objects by processes not involving the application of heat by dipping them into or mixing them with a chemical liquid, e.g. organic; chemical, e.g. organic, dewatering aids
-
- 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
- H01L21/02041—Cleaning
- H01L21/02043—Cleaning before device manufacture, i.e. Begin-Of-Line process
- H01L21/02052—Wet cleaning only
-
- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67028—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
- H01L21/67034—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for drying
-
- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67028—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
- H01L21/6704—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing
- H01L21/67051—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing using mainly spraying means, e.g. nozzles
-
- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67063—Apparatus for fluid treatment for etching
- H01L21/67075—Apparatus for fluid treatment for etching for wet etching
- H01L21/6708—Apparatus for fluid treatment for etching for wet etching using mainly spraying means, e.g. nozzles
Definitions
- the present invention relates to a technique for drying a substrate such as a semiconductor wafer after performing a liquid treatment using a treatment liquid, a cleaning treatment, and the like.
- a processing apparatus that holds a semiconductor wafer (hereinafter referred to as “wafer”) by a spin chuck, supplies a processing liquid, and cleans it.
- a treatment liquid such as pure water
- the wafer is rotated and dried by shaking off droplets by centrifugal force.
- An object of the present invention is to provide a substrate processing method and a substrate processing apparatus that can sufficiently dry a substrate even if the amount of a processing solution for drying such as IPA is reduced. It is another object of the present invention to provide a storage medium storing a program for executing such a processing method.
- a liquid processing step of processing the substrate with the processing liquid is
- a drying step of drying the substrate by supplying a drying fluid having higher volatility than the processing solution and an inert gas to the substrate while rotating the substrate to which the processing solution is attached;
- the supply position of the fluid and the inert gas are maintained while maintaining the supply position of the inert gas to the substrate closer to the center of rotation of the substrate than the supply position of the fluid to the substrate.
- the supply position of the processing liquid with respect to the substrate is kept at a rotational center force of the substrate that is farther from the rotation position of the substrate than the supply position of the fluid with respect to the substrate.
- the liquid treatment process and the drying process are performed radially outward with respect to the center of rotation of the substrate by supplying the treatment liquid to the substrate while being moved outward in the radial direction. Is preferably performed continuously.
- the supply position of the inert gas with respect to the substrate is positioned ahead of the fluid supply position with respect to the substrate in the rotation direction of the substrate.
- the drying step is performed in a state where the humidity around the substrate is lower than the liquid treatment step.
- a spin chuck that holds and rotates the substrate
- a processing liquid supply system for supplying a processing liquid to the substrate rotated by the spin chuck
- An inert gas nozzle for supplying an inert gas to the substrate
- the opening size of the inert gas nozzle is the fluid nozzle. It is preferred to be larger than the opening size of.
- the processing liquid supply system includes: a processing liquid nozzle that supplies the processing liquid to the substrate; and the processing liquid nozzle that keeps the processing liquid nozzle farther from the fluid nozzle than the central force of rotation of the substrate. And a nozzle moving mechanism for moving outward in the radial direction with respect to the rotation center of the substrate.
- a humidity adjusting mechanism for adjusting the humidity around the substrate held by the spin chuck.
- the drying fluid includes, for example, an IPA solution, an IPA solution diluted with water, an IPA solution mist, an IPA solution mist diluted with water, an IPA vapor, and an IPA solution vapor diluted with water.
- the “fluid for drying having higher volatility than the processing liquid” is a concept that includes vapor of such liquid in addition to liquid having higher volatility than the processing liquid.
- the treatment liquid is a rinse liquid such as pure water.
- a liquid processing step of processing the substrate with the processing liquid A liquid processing step of processing the substrate with the processing liquid
- a drying step of drying the substrate by supplying a drying fluid having higher volatility than the processing solution and an inert gas to the substrate while rotating the substrate to which the processing solution is attached;
- the supply position of the fluid and the inert gas are maintained while maintaining the supply position of the inert gas to the substrate closer to the center of rotation of the substrate than the supply position of the fluid to the substrate.
- a storage medium storing a program for executing a substrate processing method for moving a gas supply position radially outward with respect to the rotation center of the substrate.
- the supply position of the processing liquid is maintained at a position farther from the center of rotation of the substrate than the supply position of the fluid with respect to the substrate.
- the liquid treatment step and the drying are performed radially outward with respect to the rotation center of the substrate by supplying the treatment liquid to the substrate while moving outward in the radial direction with respect to the rotation center of the substrate. It is preferable to store a program for executing a substrate processing method for performing processes and processes continuously.
- a substrate can be efficiently dried by simultaneously supplying a drying fluid such as an IPA solution and nitrogen gas to the substrate. That is, by promoting drying with nitrogen gas, it is possible to reduce the amount of the drying fluid used and to reduce the cost. In addition, the substrate processing time can be shortened. Furthermore, the generation of a water mark on the substrate surface can be effectively prevented.
- FIG. 1 is a schematic view showing one embodiment of a substrate processing apparatus according to the present invention.
- FIG. 2 is a horizontal sectional view showing a main part of the substrate processing apparatus shown in FIG.
- FIG. 3 is a perspective view for explaining operations of a fluid nozzle and an inert gas nozzle in the substrate processing apparatus shown in FIG. 1.
- FIG. 4 is a perspective view for explaining operations of a processing liquid nozzle, a fluid nozzle, and an inert gas nozzle in another embodiment of the substrate processing apparatus according to the present invention.
- FIG. 5 is a perspective view for explaining operations of a fluid nozzle and an inert gas nozzle in another embodiment of the substrate processing apparatus according to the present invention.
- FIG. 6 is a plan view for explaining the arrangement relationship between a fluid nozzle and an inert gas nozzle in another embodiment of the substrate processing apparatus according to the present invention.
- FIG. 7 is a perspective view for explaining a difference in opening size (shape) between a fluid nozzle and an inert gas nozzle in another embodiment of the substrate processing apparatus according to the present invention.
- FIG. 8 is a schematic view showing another embodiment of the substrate processing apparatus according to the present invention.
- a spin chuck 3 that holds the wafer W substantially horizontally and rotates the wafer W is provided in the processing container 2 of the substrate processing apparatus 1 that is effective in the present embodiment.
- a chemical nozzle 5 that supplies chemical liquid to the wafer W and a first support arm 6 that supports the nozzle 5 are provided.
- Sarakuko treatment liquid nozzle 11 that supplies rinsing liquid as the treatment liquid, higher volatility than the rinse liquid, fluid nozzle 12 that supplies the drying fluid, and nitrogen (N) gas as inert gas
- N nitrogen
- a second support arm 15 is provided.
- a controller 16 having a CPU for controlling each part of the substrate processing apparatus 1 is provided.
- Three holding members 18 are provided on the upper portion of the spin chuck 3, and these holding members are provided.
- a motor 20 that rotates the spin chuck 3 via a vertical rotation shaft is attached to the lower part of the spin chuck 3! / By rotating the spin chuck 3 with this motor 20,
- Wafer W is centered around the center P, and the wafer W is almost horizontally integrated with the spin chuck 3.
- the drive of the motor 20 is controlled by the controller 16.
- the first support arm 6 is disposed above the wafer W supported by the spin chuck 3.
- the base end portion of the first support arm 6 is supported so as to be movable along a guide rail 31 arranged substantially horizontally.
- a drive mechanism 32 that moves the first support arm 6 along the guide rail 31 is provided.
- the chemical nozzle 5 moves in the radial direction with respect to the rotation center P of the wafer W to the outside of the wafer W. It can move horizontally.
- the drive of the drive mechanism 32 is controlled by the controller 16 (FIG. 1).
- the chemical solution nozzle 5 is attached to the lower end of a lifting shaft 36 that protrudes downward from the lifting mechanism 35 fixed to the tip of the first support arm 6.
- the elevating shaft 36 can be moved up and down by the elevating mechanism 35, whereby the chemical solution nozzle 5 is raised and lowered to an arbitrary height.
- the driving of the lifting mechanism 35 is controlled by the controller 16.
- An open / close valve 38 is interposed in the chemical solution supply path 37 connected to the chemical solution nozzle 5.
- the opening / closing operation of the opening / closing valve 3 8 is controlled by the controller 16.
- the second support arm 15 is disposed above the wafer W supported by the spin chuck 3.
- the base end portion of the second support arm 15 is supported so as to be movable along a guide rail 51 arranged substantially horizontally.
- a drive mechanism 52 that moves the second support arm 15 along the guide rail 51 is provided.
- a nozzle moving mechanism for moving the processing liquid nozzle 11, the fluid nozzle 12, and the inert gas nozzle 13 in the horizontal direction is configured. As shown in FIG. 2, the processing liquid nozzle 11, the fluid nozzle 12 and the inert gas nozzle 13 are moved in the radial direction with respect to the rotation center P of the wafer W as the second support arm 15 is moved by driving the driving mechanism 52. In order to move horizontally to the outside of the wafer W o
- the drive of the drive mechanism 52 is controlled by the controller 16 (FIG. 1).
- an elevating mechanism 55 having an elevating shaft 54 is fixed to the tip of the second support arm 15.
- the elevating shaft 54 is disposed so as to protrude below the elevating mechanism 55, and the treatment liquid nozzle 11, the fluid nozzle 12, and the inert gas nozzle 13 are attached to the lower end of the elevating shaft 54.
- the elevating shaft 54 is expanded and contracted by driving the elevating mechanism 55, whereby the processing liquid nozzle 11, the fluid nozzle 12 and the inert gas nozzle 13 are raised and lowered to an arbitrary height.
- the drive of the lifting mechanism 55 is controlled by the controller 16.
- the controller 16 controls the drive of the drive mechanism 52 to move the second support arm 15, the treatment liquid nozzle 11, the fluid nozzle 12 and the inert gas nozzle 13 in the horizontal direction (nozzle movement direction D). And the vertical position of the processing liquid nozzle 11, the fluid nozzle 12 and the inert gas nozzle 13 are adjusted by controlling the driving of the lifting mechanism 55.
- the treatment liquid nozzle 11, the fluid nozzle 12, and the inert gas nozzle 13 are
- the inert gas nozzle 13 is closer to the rotation center P of the wafer W than the fluid nozzle 12, and the processing o
- the liquid nozzle 11 is arranged so that the rotation center P force of the wafer W is farther than the fluid nozzle 12.
- the processing liquid nozzle 11 supplies a liquid such as pure water (DIW) as a rinsing liquid.
- the processing liquid nozzle 11 is connected to a rinsing liquid supply source 61 via a rinsing liquid supply path 62.
- Rin An on-off valve 63 is interposed in the liquid supply path 62.
- the fluid nozzle 12 is connected to a drying fluid supply source 66 via a fluid supply path 67.
- the fluid supply path 67 is provided with an open / close valve 68.
- the inert gas nozzle 13 is connected to a nitrogen gas supply source 71 via a nitrogen gas supply path 72.
- An opening / closing valve 73 is interposed in the nitrogen gas supply path 72.
- the controller 16 controls the opening / closing operation of the on-off valves 63, 68, 73 to control the supply of the rinse liquid, the IPA solution, and the nitrogen gas.
- the wafer W is loaded into the processing container 2, and the wafer W is held by the spin chuck 3 as shown in FIG.
- the first support arm 6 and the second support arm 15 are set to a standby position located outside the spin chuck 3. Evacuate it.
- the spin chuck 3 is rotated by driving the motor 20 shown in FIG. Then, a chemical treatment process for performing treatment with a chemical solution is started. First, as shown by a one-dot chain line in FIG. 2, the first support arm 6 is moved so that the chemical nozzle 5 is positioned on the rotation center P of the wafer W. And times o
- the chemical solution is supplied from the chemical solution nozzle 5 toward the rotation center P of the rotating wafer W. Rotation o
- the chemical solution supplied to the center P diffuses over the entire upper surface of the wafer W by centrifugal force.
- the first support arm 6 is returned to the standby position outside the spin chuck 3. After that, the upper surface of wafer W is treated with a chemical liquid film by leaving it to stand for a predetermined time.
- a liquid processing step for performing a rinsing treatment of Ueno and W is performed.
- the second support is made so that the treatment liquid nozzle 11 is positioned on the rotation center P of the wafer W.
- the rotation center P of the wafer W rotating at a predetermined rotation speed P
- the rinsing liquid is supplied from the processing liquid nozzle 11 in the direction of o. Phosphorus supplied to center of rotation P
- the solution is diffused over the entire upper surface of the wafer W by centrifugal force. As a result, the chemical solution is pushed away from the upper surface of the wafer W and removed, and a liquid film of the rinsing liquid is formed on the upper surface of the wafer W.
- the supply of the rinse liquid from the treatment liquid nozzle 11 is stopped and the drying process is started.
- the supply of the IPA solution from the fluid nozzle 12 is started, and the supply of nitrogen gas from the inert gas nozzle 13 is started. And each nozzle 23
- the IPA solution and nitrogen gas can be sprayed over the entire upper surface of the wafer W.
- the supply of the IPA solution and the supply of nitrogen gas may be started simultaneously! For example, when the fluid nozzle 12 moves above the rotation center P of the wafer W, supply of the IPA solution and nitrogen gas
- the supply of the service may be started. Nitrogen gas is supplied when the inert gas nozzle 13 moves above the rotation center P of the wafer W after the supply of the IPA solution is started.
- the supply of nitrogen gas may be started for the rotation center p force of the wafer w.
- both the IPA solution and the nitrogen gas supply may be started at a position slightly deviated behind the rotation center P force with respect to the nozzle movement direction D.
- the rinse liquid adhering to the upper surface of the wafer W is pushed away by supplying the IPA solution, and evaporation of the rinse liquid is promoted by volatility of the IPA mixed with the rinse liquid. Therefore, the pure water on the upper surface of the wafer W is efficiently removed by supplying the IPA solution.
- the IPA solution supplied to the upper surface of Ueno and W flows toward the outer periphery of the wafer W by centrifugal force. While the IPA solution supply position S1 ⁇ moves in the nozzle moving direction D, the nitrogen gas supply position Sn is adjacent to the IPA solution supply position Sf, while the supply position Sf. It is kept closer to the rotation center P of the wafer w. Therefore, the upper surface of the wafer W
- nitrogen gas can be supplied immediately to accelerate drying.
- the drying rate can be increased while suppressing the amount of IPA used. Furthermore, since the oxygen concentration that causes the watermark can be lowered, the occurrence of the watermark can be prevented.
- the supply position Sn of the nitrogen gas may be temporarily stopped on the periphery of the wafer W, and supply may be stopped after supplying nitrogen gas to the periphery for a while. If it does in this way, it can dry more reliably.
- a storage medium (a magnetic storage medium, an optical storage medium, a semiconductor memory, etc.) storing a program for executing the above substrate processing method is prepared, and the controller 16 also reads the program of the storage medium force. It can be configured to do this.
- the processing liquid adhering to the wafer W can be efficiently removed by supplying the IPA solution with the fluid nozzle 12. Furthermore, the IPA solution can be efficiently removed from the wafer W by supplying nitrogen gas through the inert gas nozzle 13. Therefore, by simultaneously supplying the IPA solution and nitrogen gas, Ueno and W can be efficiently dried. Moreover, since the drying can be promoted using nitrogen gas, the amount of IPA solution used can be suppressed. Therefore, the cost can be reduced by reducing the amount of IP A used. Moreover, since the drying efficiency is good, the drying time of the wafer W can be shortened.
- the supply position Sn inert gas nozzle 13
- the PA solution supply position Sf fluid nozzle 12
- the IPA solution and nitrogen gas supply areas from the nozzles 12 and 13 are indicated by broken circles Af and An, respectively, and the centers of the supply areas Af and An are set as supply positions Sf and Sn, respectively.
- the straight lines connecting the supply positions Sf and Sn and the rotation center P of the wafer W are Lf and Ln, respectively, the straight line Ln is from the straight line Lf to the wafer.
- the opening dimension Bn of the inert gas nozzle 13 ′ is larger than the opening dimension S of the fluid nozzle 12 in the direction perpendicular to the nozzle moving direction D (here, in particular, the direction parallel to the surface of the wafer W). It is summer. Specifically, in contrast to the fluid nozzle 12 having the circular opening 12a, the inert gas nozzle 13 ′ has a rectangular opening 13a having a long side longer than the diameter of the circular opening 12a. Have. As a result, in the direction orthogonal to the nozzle movement direction D, the dimension Bn of the inert gas supply area An is also larger than the dimension B of the IPA solution supply area Af. As a result, the IPA solution can be washed away more effectively by nitrogen gas, and the drying process can be performed more efficiently.
- This embodiment further includes a humidity adjusting mechanism for adjusting the humidity around the wafer W held by the spin chuck 3.
- this humidity control mechanism may be configured by a humidity controller 85 attached to the ceiling of the processing container 2, or the processing container 2 while supplying a dry inert gas into the processing container 2. It is good also as a structure which exhausts the inside of 2.
- the humidity adjustment mechanism the drying process is performed in a state where the humidity around the wafer W is lower than that in the chemical treatment process and the liquid treatment process (for example, relative humidity is about 25%). Thereby, it is possible to prevent particles from being generated on the dried Ueno and W by suppressing the surrounding water from dissolving in the IPA solution supplied onto the wafer W in the drying process.
- the substrate is not limited to a semiconductor wafer, but other LCD substrate glass or It may be a CD substrate, a printed substrate, a ceramic substrate, or the like.
- the force described in the case where the wafer W is chemically treated with the chemical liquid supplied from the chemical liquid nozzle 5 and then cleaned with the processing liquid is not limited to a powerful one.
- the present invention can also be suitably applied to a substrate processing apparatus configured to perform scrub cleaning by bringing a scrubber such as a brush or sponge into contact with the wafer W.
- the present invention can be applied to a substrate processing apparatus that performs various processes such as a resist removal process and a process of removing etching residues.
- a nozzle for supplying a chemical solution for resist removal treatment may be provided, and after the resist removal treatment, the chemical treatment, rinsing treatment, and drying steps described in the embodiments may be performed.
- a force IPA solution exemplified by an IPA solution obtained by diluting an IPA solution with pure water may be used without being diluted.
- the fluid may be in the form of mist (mist), jet, steam, etc. in addition to liquid.
- mist mist
- IPA liquid mist, IPA solution mist, IPA vapor, or IPA solution vapor mixed vapor in which IPA vapor and water vapor are mixed
- a mixture of a gas such as nitrogen gas in a mistletoe, IPA liquid mist, IPA solution mist, IPA vapor, or IPA solution vapor may be used as a drying fluid.
- the ratio of IPA solution to pure water in IPA solution may be 1: 1, for example.
- IPA ethylene glycol dimethacrylate copolymer
- a highly volatile solvent such as water-soluble alcohols such as methanol and ethanol, acetone, and the like may be used. Even when such a solvent is used in a drying fluid, the amount of fluid used can be reduced by the present invention, and the cost can be reduced.
- the drying fluid is preferably soluble in the rinsing liquid. In this case, evaporation can be promoted by mixing the drying fluid with the rinse liquid. Further, the drying fluid may be mixed with the rinsing liquid and have a function of reducing the surface tension of the rinsing liquid. In this case, since the rinse liquid is easily shaken off from the surface of the wafer W, the rinse liquid can be efficiently removed and the wafer W can be dried.
- a two-fluid nozzle may be used as the fluid nozzle 12.
- a liquid such as an IPA liquid or IPA solution
- a gas such as nitrogen gas
- Jet and add by gas Droplets can be ejected at high speed.
- the structure of the two-fluid nozzle is not limited to the internal mixing type, and may be, for example, an external mixing type structure in which liquid and gas are mixed outside.
- the drying process is performed by supplying the IPA solution and the nitrogen gas.
- the IPA solution and the nitrogen gas may be supplied while supplying the rinse liquid. That is, the second support arm 15 may be moved in the nozzle moving direction D while simultaneously supplying the rinse liquid, the IPA solution, and the nitrogen gas by the processing liquid nozzle 11, the fluid nozzle 12, and the inert gas nozzle 13, respectively. Good.
- the rinse liquid supply position Sr, the IPA solution supply position Sf, and the nitrogen gas supply position Sn on the upper surface of the wafer W may be moved in the nozzle movement direction D at the same time.
- the rinsing liquid supplied to the upper surface of the wafer W flows radially outward by centrifugal force and is adjacent to the rinsing liquid supply position Sr.
- the rinsing fluid PA solution is swept away. Therefore, even if the chemical solution remains on the upper surface of the wafer W, it is efficiently washed away by the force S rinse solution and the IPA solution.
- the rinse liquid is immediately replaced by the IPA solution supplied to the supply position Sf before the rinse liquid loses the upper surface force of the wafer W, that is, before the surface of the wafer W is exposed.
- the rinse liquid can be efficiently removed from the upper surface of the wafer W, and the generation of the watermark can be suppressed.
- drying of the IPA solution is promoted by the nitrogen gas supplied to the supply position Sn. Therefore, also in this case, the upper surface of the wafer W can be efficiently dried.
- the rinsing process and the drying process can be performed continuously outward in the direction. In this case, the processing time required for the drying process can be shortened.
- the force for supporting the treatment liquid nozzle 11, the fluid nozzle 12 and the inert gas nozzle 13 by one second support arm 15 is used. You may make it support. In that case, treatment liquid nozzle 11, fluid nozzle 1 2 and the inert gas nozzle 13 may be moved in different radial directions.
- a support arm that supports the fluid nozzle 12 and a support arm that supports the inert gas nozzle 13 are individually provided. Then, during the drying process, each support arm is moved 180 degrees different in the radial direction under the control of the controller 16. As a result, as shown in FIG. 5, the fluid nozzle 12 and the inert gas nozzle 13 are moved outward from the rotation center P of the wafer W by 180 degrees different in the radial direction. Also in this case, the nitrogen gas supply position Sn force IPA solution supply position S The beam should be kept close to the rotation center P of the wafer W o
- the nitrogen gas supply position o is calculated from the distance between the IPA solution supply position Sf and the rotation center P.
- Control should be made so that the distance between the device Sn and the rotation center P is always shorter.
- a support arm that supports the treatment liquid nozzle 11 is provided separately, and the rinse liquid supply position Sr is the IPA solution supply position S. It may be moved. In this case, o
- the rinse solution supply position Sr may be arranged in the same radial direction as the IPA solution supply position Sf.
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Abstract
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JP2006540941A JP4451450B2 (ja) | 2004-10-12 | 2005-10-12 | 基板処理方法および基板処理装置 |
EP05793595A EP1801860A4 (en) | 2004-10-12 | 2005-10-12 | SUBSTRATE PROCESSING METHOD AND SUBSTRATE PROCESSING APPARATUS |
US11/578,099 US8337659B2 (en) | 2004-10-12 | 2005-10-12 | Substrate processing method and substrate processing apparatus |
US13/693,712 US8794250B2 (en) | 2004-10-12 | 2012-12-04 | Substrate processing method and substrate processing apparatus |
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US11/578,099 A-371-Of-International US8337659B2 (en) | 2004-10-12 | 2005-10-12 | Substrate processing method and substrate processing apparatus |
US13/693,712 Division US8794250B2 (en) | 2004-10-12 | 2012-12-04 | Substrate processing method and substrate processing apparatus |
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US (2) | US8337659B2 (ja) |
EP (1) | EP1801860A4 (ja) |
JP (3) | JP4451450B2 (ja) |
KR (1) | KR100766844B1 (ja) |
TW (1) | TWI286353B (ja) |
WO (1) | WO2006041077A1 (ja) |
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US8133327B2 (en) | 2006-03-29 | 2012-03-13 | Tokyo Electron Limited | Substrate processing method, storage medium and substrate processing apparatus |
WO2007111369A1 (ja) * | 2006-03-29 | 2007-10-04 | Tokyo Electron Limited | 基板処理方法、記録媒体及び基板処理装置 |
JP2008060106A (ja) * | 2006-08-29 | 2008-03-13 | Dainippon Screen Mfg Co Ltd | 基板処理方法および基板処理装置 |
JP2008060203A (ja) * | 2006-08-30 | 2008-03-13 | Tokyo Electron Ltd | 液処理装置および液処理方法 |
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JP2008085164A (ja) * | 2006-09-28 | 2008-04-10 | Dainippon Screen Mfg Co Ltd | 基板処理装置および基板処理方法 |
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JP2008130822A (ja) * | 2006-11-21 | 2008-06-05 | Tokyo Electron Ltd | 基板処理装置および基板処理方法 |
JP2010177371A (ja) * | 2009-01-28 | 2010-08-12 | Dainippon Screen Mfg Co Ltd | 基板処理方法および基板処理装置 |
JP2017108190A (ja) * | 2017-03-23 | 2017-06-15 | 東京エレクトロン株式会社 | 液処理方法、液処理装置および記憶媒体 |
JP2022190113A (ja) * | 2020-03-05 | 2022-12-22 | 東京エレクトロン株式会社 | 基板処理方法、及び基板処理装置 |
JP7345619B2 (ja) | 2020-03-05 | 2023-09-15 | 東京エレクトロン株式会社 | 基板処理方法、及び基板処理装置 |
JP2021090082A (ja) * | 2021-03-15 | 2021-06-10 | 東京エレクトロン株式会社 | 基板処理装置および基板処理方法 |
JP7143465B2 (ja) | 2021-03-15 | 2022-09-28 | 東京エレクトロン株式会社 | 基板処理装置および基板処理方法 |
Also Published As
Publication number | Publication date |
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JP5068801B2 (ja) | 2012-11-07 |
TWI286353B (en) | 2007-09-01 |
KR100766844B1 (ko) | 2007-10-17 |
KR20060132848A (ko) | 2006-12-22 |
US8794250B2 (en) | 2014-08-05 |
JPWO2006041077A1 (ja) | 2008-05-15 |
JP2010045389A (ja) | 2010-02-25 |
TW200627537A (en) | 2006-08-01 |
US20070223342A1 (en) | 2007-09-27 |
EP1801860A1 (en) | 2007-06-27 |
US8337659B2 (en) | 2012-12-25 |
JP2012099862A (ja) | 2012-05-24 |
JP5318980B2 (ja) | 2013-10-16 |
JP4451450B2 (ja) | 2010-04-14 |
US20130145643A1 (en) | 2013-06-13 |
EP1801860A4 (en) | 2009-08-12 |
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