WO2008059799A1 - Système de traitement, procédé de traitement et support d'enregistrement - Google Patents
Système de traitement, procédé de traitement et support d'enregistrement Download PDFInfo
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- WO2008059799A1 WO2008059799A1 PCT/JP2007/071935 JP2007071935W WO2008059799A1 WO 2008059799 A1 WO2008059799 A1 WO 2008059799A1 JP 2007071935 W JP2007071935 W JP 2007071935W WO 2008059799 A1 WO2008059799 A1 WO 2008059799A1
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- Prior art keywords
- processing
- fluid
- container
- processing fluid
- channel
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/42—Stripping or agents therefor
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/42—Stripping or agents therefor
- G03F7/422—Stripping or agents therefor using liquids only
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/26—Processing photosensitive materials; Apparatus therefor
- G03F7/42—Stripping or agents therefor
- G03F7/422—Stripping or agents therefor using liquids only
- G03F7/423—Stripping or agents therefor using liquids only containing mineral acids or salts thereof, containing mineral oxidizing substances, e.g. peroxy compounds
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/708—Construction of apparatus, e.g. environment aspects, hygiene aspects or materials
- G03F7/70908—Hygiene, e.g. preventing apparatus pollution, mitigating effect of pollution or removing pollutants from apparatus
- G03F7/70933—Purge, e.g. exchanging fluid or gas to remove pollutants
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- 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
- H01L21/67098—Apparatus for thermal treatment
- H01L21/67109—Apparatus for thermal treatment mainly by convection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S134/00—Cleaning and liquid contact with solids
- Y10S134/902—Semiconductor wafer
Definitions
- the present invention relates to a processing system and a processing method for processing an object to be processed such as a semiconductor wafer and a glass for an LCD substrate, and further relates to a recording medium for performing the processing method.
- ozone gas is applied to a wafer stored in a processing container.
- a mixed gas of water vapor is supplied, and the resist is oxidized with the mixed gas to make it water-soluble, and then removed with pure water.
- a processing system for processing an object to be processed includes an ozone gas generating unit that generates ozone gas and a water vapor generating unit that generates water vapor, and the ozone gas generating unit and the water vapor generating unit generate the ozone gas. Ozone gas and water vapor are mixed and supplied into the processing vessel! (For example, Patent Document 1).
- Patent Document 1 Japanese Unexamined Patent Publication No. 2003-332322
- a flow rate adjusting mechanism such as an orifice or a needle valve is provided in the flow path for supplying a processing gas such as ozone gas or water vapor to the processing vessel, and the supply amount of the processing gas can be adjusted by these flow rate adjusting mechanisms. It is excluded.
- the water vapor generating unit heats and boiles pure water supplied from the outside, for example. To generate water vapor.
- the high-temperature steam generated in the steam generation section is supplied into the processing container while keeping the temperature.
- the temperature becomes high due to heat of water vapor or the like.
- the flow rate adjusting mechanism is expanded by heat, sometimes force S supply amount is increased.
- an object of the present invention is to enable a processing fluid such as water vapor to be supplied into a processing container to be always supplied at a stable flow rate.
- the processing system includes:
- a processing container for storing the object to be processed in the processing space
- a processing fluid generator for generating a processing fluid of a predetermined temperature
- a main flow path that is connected to the processing fluid generator and guides the processing fluid supplied from the processing fluid generator;
- a processing fluid supply channel that is disposed downstream of the main channel via a switching valve, guides the processing fluid into the processing container, and supplies the processing fluid to the processing space in the processing container;
- a processing fluid bypass channel disposed downstream of the main channel via the switching valve and guiding the processing fluid not guided to the processing fluid supply channel to bypass the processing space;
- the main flow path is provided with a flow rate adjusting mechanism for adjusting the flow rate of the processing fluid flowing in the main flow path.
- the flow rate adjusting mechanism is provided in the main flow path to which the processing fluid is supplied from the processing fluid generating unit, the processing fluid is always supplied to the flow rate adjusting mechanism. Therefore, the temperature of the flow control mechanism is always constant. For this reason, it is possible to adjust the flow rate with high accuracy.
- the processing fluid discharged from the processing space in the processing container and the processing fluid bypass channel are guided to pass through the processing container by bypassing the processing space. It is preferable that a discharge flow path for discharging the processing fluid is further provided, and a flow rate adjusting mechanism for adjusting a flow rate of the processing fluid flowing in the discharge flow path is provided in the discharge flow path.
- the processing fluid bypass channel has a temperature adjustment channel for adjusting the temperature of the processing fluid flowing in the processing fluid bypass channel.
- the temperature control flow path is in thermal contact with the processing container.
- the temperature of the processing fluid can be adjusted using the heat of the processing container.
- the processing fluid is water vapor.
- the processing fluid bypass channel bypasses the processing space for the processing fluid not guided to the processing fluid supply channel and passes through the processing container. I prefer to guide you.
- a processing method according to the present invention includes:
- a processing method for processing a target object by supplying a processing fluid having a predetermined temperature to a processing space in a processing container,
- a processing fluid discharged from the processing space in the processing container and a processing fluid guided so as to bypass the processing space in the processing container are shared. It is preferable to discharge through the flow control mechanism!
- the processing fluid guided so as to bypass the processing space in the processing container is temperature-adjusted and then discharged through the common flow rate adjusting mechanism. Is preferred.
- the treatment fluid is preferably water vapor.
- the processing fluid when the processing fluid is guided so as to bypass the processing space in the processing container, the processing fluid bypasses the processing space, and in the processing container It is preferable to be guided to pass through! / ,.
- a recording medium according to the present invention comprises:
- the processing method is
- a method of processing a target object by supplying a processing fluid having a predetermined temperature to a processing space in a processing container,
- the process fluid is always supplied to the flow rate adjusting mechanism both when the process fluid is supplied into the process container and when the process fluid is discharged while bypassing the process container. Fluid is supplied. Therefore, the temperature of the flow control mechanism is always constant, and high-precision / high flow control is possible.
- FIG. 1 is a plan view of a processing system that is effective in an embodiment of the present invention.
- FIG. 2 is a side view of the processing system according to the embodiment of the present invention.
- FIG. 3 is a schematic configuration diagram of a processing unit.
- FIG. 4 is a longitudinal sectional view showing a schematic configuration of a processing container.
- FIG. 5 is a partially enlarged sectional view of the bottom surface of the processing container.
- FIG. 6 Bottom view of the processing container with the heater removed.
- FIG. 1 is a plan view of a processing system 1 that is effective in the present embodiment.
- Figure 2 is a side view.
- components having substantially the same functional configuration are denoted by the same reference numerals, and redundant description is omitted.
- This processing system 1 includes a processing unit 2 that performs resist water-solubilization processing and cleaning processing on the wafer W, and a loading / unloading unit 3 that loads the wafer W into and out of the processing unit 2.
- a control computer 19 is provided to give control commands to each part of the processing system 1.
- the width direction of the processing section 2 and the loading / unloading section 3 is the Y direction
- the arrangement direction of the processing section 2 and the loading / unloading section 3 is the direction perpendicular to the Y direction.
- the X direction and the vertical direction are defined as the Z direction.
- the loading / unloading unit 3 is provided with a mounting table 6 for mounting a plurality of, for example, 25, substantially disk-shaped wafers W (carrier C) capable of accommodating a substantially horizontal space at predetermined intervals.
- In-out port 4 and wafer transfer unit 5 provided with wafer transfer device 7 for transferring wafer W between carrier C mounted on mounting table 6 and processing unit 2, and ing.
- the wafer W is carried in and out through one side surface of the carrier C, and a lid body that can be opened and closed is provided on the side surface of the carrier C.
- a shelf plate for holding the wafer W at a predetermined interval is provided on the inner wall, and 25 slots for accommodating the wafer W are formed.
- One wafer W is accommodated in each slot with the front surface (surface on which the semiconductor device is formed) being the upper surface (the upper surface when the wafer W is held horizontally).
- the carrier C On the mounting table 6 of the in / out port 4, for example, three carriers can be placed in a predetermined position in the Y direction.
- the carrier C is placed with the side surface on which the lid is provided facing toward the boundary wall 8 between the in / out port 4 and the wafer transfer unit 5.
- a window portion 9 is formed in the boundary wall 8 at a position corresponding to the place where the carrier C is placed, and a window portion opening / closing mechanism that opens and closes the window portion 9 by a shutter or the like on the wafer transfer portion 5 side of the window portion 9. 10 is installed.
- the window opening / closing mechanism 10 can also open and close the lid provided on the carrier C, and simultaneously opens and closes the lid of the carrier C. Opening the window 9 to allow the wafer loading / unloading port of the carrier C to communicate with the wafer transfer unit 5 makes it possible to access the carrier C of the wafer transfer device 7 disposed in the wafer transfer unit 5, and the wafer. W can be transported.
- the wafer transfer device 7 disposed in the wafer transfer unit 5 is movable in the Y direction and the Z direction, and is configured to be rotatable about the Z direction as a central axis. Further, the wafer transfer device 7 has an extraction / storage arm 11 for holding the wafer W, and the extraction / storage arm 11 is slidable in the X direction. In this way, the wafer transfer device 7 accesses the slots of any height of all the carriers C mounted on the mounting table 6, and the upper and lower two wafer transfer units 16 disposed in the processing unit 2, 17 is configured so that the wafer W can be transferred from the in-out port 4 side to the processing unit 2 side, and conversely from the processing unit 2 side to the in-out port 4 side.
- the processing unit 2 has two wafer transfer units for temporarily placing the wafer W in order to transfer the wafer W between the main wafer transfer device 18 as a transfer unit and the wafer transfer unit 5.
- the processing unit 2 includes a processing gas generation unit 24 including an ozone gas generation unit 40 that generates ozone gas as a processing fluid to be supplied to the processing units 23a to 23f, and a water vapor generation unit 41 that generates water vapor.
- a chemical solution storage unit 25 for storing a predetermined processing solution to be fed to the cleaning units 12, 13, 14, 15 is provided.
- a fan filter unit (FFU) 26 for downflowing clean air is disposed in each unit and the main wafer transfer device 18!
- Part of the downflow from the fan filter unit (FFU) 26 is structured to flow out toward the wafer transfer unit 5 through the wafer transfer units 16 and 17 and the space above the wafer transfer units 16 and 17. Yes. This prevents particles and the like from entering the processing unit 2 from the wafer transfer unit 5 and maintains the cleanliness of the processing unit 2.
- Each of the wafer transfer units 16 and 17 is for temporarily placing the wafer W between the wafer transfer unit 5 and the wafer transfer units 16 and 17 are stacked in two upper and lower stages. Has been placed.
- the lower wafer transfer unit 17 is used to place the wafer W so as to be transferred from the in-out port 4 side to the processing unit 2 side
- the upper wafer transfer unit 16 is used for the processing unit 2 side. It can be used to place wafers W transported from to the in / out port 4 side.
- the main wafer transfer device 18 is configured to be movable in the X direction and the Z direction, and to be rotatable about the Z direction as a central axis.
- the main wafer transfer device 18 has a transfer arm 18a for holding the wafer W, and this transfer arm 18a is slidable in the Y direction.
- the main wafer transfer device 18 is disposed so as to be accessible to all the wafer transfer units 16 and 17, the cleaning units 12 to 15 and the processing units 23a to 23f.
- Each of the cleaning units 12, 13, 14, and 15 performs a cleaning process and a drying process on the wafer W that has been subjected to the resist water-solubilization process in the processing units 23a to 23f.
- the cleaning units 12, 13, 14, and 15 are arranged in two upper and lower stages and two in each stage. As shown in Fig. 1, each of the cleaning units 12, 13 and the cleaning units 14, 15 has a symmetrical structure with respect to the wall 27 that forms the boundary, except for the force symmetry.
- the cleaning units 12, 1 3, 14, and 15 have substantially the same configuration.
- each of the processing units 23a to 23f performs a process of making the resist applied to the surface of the wafer W water soluble. As shown in FIG.
- the processing units 23a to 23f are arranged in three stages in the vertical direction and two in each stage. Processing units 23a, 23c, and 23e are arranged in this order from the top on the left, and processing units 23b, 23d, and 23f are arranged in this order from the top on the right. As shown in FIG. 1, the processing unit 23a and the processing unit 23b, the processing unit 23c and the processing unit 23d, and the processing unit 23e and the processing unit 23f have a symmetric structure with respect to the wall surface 28 that forms the boundary. Except for being symmetrical, each processing unit 23a-23f has a generally similar configuration! /.
- the piping systems for supplying ozone gas and water vapor as processing fluid to the processing units 23a to 23f have the same configuration.
- the piping system and structure will be described in detail by taking the processing unit 23a as an example.
- FIG. 3 is a schematic configuration diagram of the processing unit 23a.
- the processing unit 23 a is provided with a processing container 30 for storing the wafer W.
- the processing vessel 30 is supplied with ozone gas and water vapor as a processing fluid from an ozone gas generating unit 40 and a water vapor generating unit 41 installed in the processing gas generating unit 24 described above.
- the ozone gas generating section 40 has a structure that generates ozone gas by discharging in an oxygen-containing gas.
- the ozone gas generation unit 40 is common to the processing units 23a to 23f included in the processing system 1.
- the ozone source flow path 45 directly connected to the ozone gas generation unit 40 has each processing unit 23a to 23f.
- Ozone main channel provided corresponding to 46 forces are connected to branch.
- the ozone main flow path 46 is provided with a needle valve 47 and a flow meter 48 so that the ozone gas generated by the ozone gas generation unit 40 can be supplied to the processing container 30 of the processing unit 23a at a desired flow rate. It has become.
- a processing-side ozone gas flow path 51 Downstream of the ozone main flow path 46 is a processing-side ozone gas flow path 51 that supplies ozone gas to the processing container 30 via the switching valve 50, and a bypass-side ozone gas that bypasses the processing container 30 and passes ozone gas. Connected to channel 52.
- the switching valve 50 is a three-way valve.
- the ozone gas generated by the ozone gas generator 40 is supplied to the processing container 30 of the processing unit 23a via the processing-side ozone gas flow path 51, and not supplied to the processing container 30. It is switched to the state of passing through the bypass side ozone gas flow path 52.
- the bypass side ozone gas flow path 52 The downstream side is connected to a main discharge passage 105 described later via a backflow prevention orifice 53 that prevents backflow of ozone gas.
- the water vapor generating section 41 is configured to generate water vapor by boiling pure water supplied from the outside.
- the water vapor generating unit 41 is common to the processing units 23a to 23f included in the processing system 1, and each of the processing units 23a to 23f is connected to the water vapor source channel 55 directly connected to the water vapor generating unit 41.
- Water vapor main flow paths 56 provided corresponding to are connected so as to branch.
- An escape passage 59 having a pressure switch 57 and a relief valve 58 is connected to the steam source passage 55, and if the pressure in the steam generation section 41 exceeds the installation pressure value, A part of the air is discharged from the escape passage 59 to the outside.
- the water vapor source channel 55 is always kept at a constant water vapor pressure.
- a pipe heat-retaining heater 60 is attached to the steam source flow path 55, and is kept at a temperature of 110 to 120 ° C., for example. As a result, the temperature drop of the water vapor in the water vapor source channel 55 is prevented.
- An orifice 65 and a double dollar valve 66 are provided in a water vapor main flow channel 56 that is branched from the water vapor source flow channel 55.
- the orifice 65 and the needle valve 66 function as a flow rate adjusting mechanism for supplying the water vapor generated by the water vapor generating unit 41 to the processing container 30 of the processing unit 23a at a desired flow rate.
- the reason why the orifice 65 and the needle valve 66 are both provided in the water vapor main flow path 56 as the flow rate adjusting mechanism is as follows. That is, as described above, since the water vapor generating unit 41 generates pure water by boiling pure water, the water vapor source channel 55 is always in a constant high pressure state. In such a high pressure state, it is difficult to accurately adjust the flow rate with the general-purpose needle valve 66. Therefore, by interposing the orifice 65, the water vapor main channel 56 is maintained at a lower pressure than the water vapor source channel 55, and the flow rate is accurately adjusted by the needle valve 66 on the low pressure side.
- a steam supply channel (processing fluid supply) that guides the steam into the processing container 30 via the switching valve 70 and supplies the steam to the processing space 83 in the processing container 30.
- (Flow path) 171 is connected. Further, on the downstream side of the water vapor main flow path 56, the water vapor not guided to the water vapor supply path 171 is bypassed the processing space 83 via the switching valve 70, In addition, a water vapor bypass passage 172 that guides the processing container 30 so as to pass through is connected.
- the water vapor supply path 171 includes a processing side water vapor flow path 71 and a temperature control flow path 97 described later connected to a downstream end of the processing side water vapor flow path 71 via a switching valve 70.
- the water vapor bypass flow channel 172 includes a bypass water vapor flow channel 72, a temperature control flow channel 95 (described later) connected to the downstream end of the bypass side water flow flow channel 72 via a switching valve 70, and the temperature control flow.
- a second bypass-side steam flow path 72 ′ which will be described later, connected to the downstream end of the path 95.
- the switching valve 70 is a three-way valve.
- the switching valve 70 supplies the steam generated by the steam generating section 41 to the processing space 83 in the processing container 30 of the processing unit 23a via the steam supply path 171 and the steam bypass path 172. As a result, it is possible to switch to a state in which the processing space 83 is bypassed without being supplied to the processing space 83 in the processing container 30.
- FIG. 4 is a longitudinal sectional view showing a schematic configuration of the processing container 30.
- Figure 5 shows the processing vessel 30
- FIG. 6 is a bottom view of the processing container 30 (container body 80) with the heater 91 removed.
- the processing container 30 includes a container body 80 having a hollow cylindrical shape with an open top surface and a closed bottom surface, and a disk-shaped lid body 81 capable of sealing the top opening of the container body 80. Configured. Both the container body 80 and the lid body 81 are made of a material having good thermal conductivity such as aluminum. A 0 ring 82 as a sealing member is disposed on the upper surface of the side wall of the container body 80. When the lid 81 is in close contact with the upper surface of the container body 80, as shown in FIG. When the lower surface of the outer edge is in close contact with the 0-ring 82, a sealed processing space 83 is formed inside the processing container 30.
- a cylinder device 84 that moves the lid 81 up and down relative to the container body 80 is attached to the upper surface of the lid 81.
- the lid 81 is brought into close contact with the upper surface of the container main body 80, so that the processing container 30 can be sealed.
- the lid 81 is raised by operating the cylinder device 84, and the processing space 83 is opened by separating the lid 81 from the upper surface of the container body 80. can do.
- a mounting table 85 for mounting the wafer W stored in the processing container 30 is provided on the upper surface of the bottom surface of the container main body 80.
- an air supply port 86 for supplying ozone gas and water vapor as a processing fluid into the processing container 30, and an exhaust port 87 for discharging ozone gas and water vapor as a processing fluid from the processing container 30. It is open. As will be described later, N gas as purge gas can be supplied and discharged into the processing vessel 30 through the air supply port 86 and the exhaust port 87.
- Elevating pins 88 for raising and lowering the wafer W placed on the placing table 85 are provided, and these raising and lowering pins 88 are configured to be raised and lowered by the operation of the cylinder device 89 disposed below the container body 80. It has become.
- a ring-shaped heater 90 is incorporated inside the lid 81.
- a ring-shaped heater 91 is attached to the bottom of the bottom of the container body 80. By heating the heater 90 and the heater 91, the temperature of the entire processing container 30 is adjusted, and the processing space 83 is maintained at a desired processing temperature.
- Three temperature control channels 95, 96, 97 are provided on the outer edge of the bottom surface of the container body 80. Of these, the outermost temperature control flow channel 95 and the second outermost temperature control flow channel 96 circulate around the outer edge of the bottom surface while making thermal contact with the bottom surface of the container body 80. Is provided. On the other hand, the temperature control channel 97 located on the innermost side is provided so as to make the outer periphery of the bottom surface approximately 3/4 around while thermally contacting the bottom surface of the container body 80. Note that these three temperature control channels 95, 96, 97 are not limited to the example described here. These three temperature control channels 95, 96, and 97 may be set to such a length that can sufficiently control the temperature of ozone gas, water vapor, N, and the like passing through them, as will be described later.
- the inlet portion 95a and the outlet portion 95b of the temperature control channel 95 located on the outermost side, and the inlet portion 96a and the outlet portion 96b of the second temperature control channel 96 positioned on the outer side are both processing containers 30.
- the inlet 97a of the temperature control channel 97 located on the innermost side is a force located outside the processing vessel 30 (vessel body 80), and the outlet 97b of the temperature control channel 97 is connected to the processing vessel 30. It communicates with the air supply opening 86 that opens inside (processing space 83)!
- the outer peripheral edge of the bottom surface of the container body 80 has three grooves 100, 10 1, 102 are formed, and the above-described temperature control flow paths 95, 96, 97 are formed in these three grooves 100, 101, 102, for example, PFA tubes (PFA: Tetrafluoroethylene (Roalkoxybule ether copolymer resin).
- PFA Tetrafluoroethylene (Roalkoxybule ether copolymer resin).
- the downstream side of the processing-side ozone gas channel 51 described above is connected to the inlet 96a of the temperature control channel 96. Further, the outlet portion 96b of the temperature control flow channel 96 is connected to a junction 71 ′ with the process-side water vapor flow channel 71 described above. Further, the downstream side of the processing-side steam channel 71 described above is connected to the inlet 97a of the temperature control channel 97 further downstream from the junction 71 ′.
- the ozone gas flowing through the processing-side ozone gas channel 51 is heated to a desired temperature by the heat of the heater 91 when passing through the temperature adjustment channel 96. Further, the ozone gas force S that has been heated to a desired temperature when passing through the temperature control channel 96 is mixed with the steam flowing through the processing-side steam channel 71 at the junction 71 ′. Further, the mixed gas of ozone gas and water vapor mixed in this way is temperature-adjusted again to a desired temperature by the heat of the heater 91 when passing through the temperature adjustment flow path 97. The mixed gas of ozone gas and water vapor whose temperature is adjusted again to the desired temperature in this way is supplied to the inside of the processing container 30 through the air supply port 86.
- bypass-side water vapor channel 72 described above is connected to the inlet portion 95 a of the temperature control channel 95. Further, the outlet portion 95b of the temperature control flow path 95 is connected to the second bypass side water vapor flow path 7 2 ′.
- the downstream side of the second bypass-side steam flow path 72 ′ is connected to a main discharge flow path 105 described below through a steam backflow prevention orifice 73 that prevents the backflow of steam.
- a main discharge channel 105 is connected to an exhaust port 87 for discharging ozone gas and water vapor as processing fluid from inside the processing container 30.
- the main discharge flow path 105 includes a switching valve 106, a pressure switch 107, a backflow prevention orifice 108, an air operation valve 109 and Relief valves 110 are provided in order. Further, in the main discharge channel 105, between the backflow prevention orifice 108 and the air operated valve 109, the downstream side of the bypass ozone gas channel 52 described above and the downstream side of the second bypass side steam channel 72 ′ described above. Is connected.
- an N gas supply channel is provided in the middle of the processing side ozone gas channel 51.
- This N gas supply channel 115 is connected. This N gas supply channel 115 is supplied from an N supply source outside the processing system 1.
- N gas supply channel 116 for supplying N gas.
- the air supply passage 115 is provided with an air operation valve 117 that controls the supply of N gas.
- an N gas discharge flow path 118 is connected to the switching valve 106 provided in the main discharge flow path 105.
- the switching valve 106 is a three-way valve. As will be described later, ozone gas and water vapor as processing fluid discharged from the processing vessel 30 through the exhaust port 87 are discharged through the main discharge channel 105, as described later. The N gas as the purge gas discharged from the processing container 30 through the exhaust port 87 is discharged through the N gas discharge passage 118.
- Each functional element of the processing system 1 is connected via a signal line to a control computer 19 that automatically controls the operation of the entire processing system 1.
- the functional elements are, for example, the wafer transfer device 7 provided in the aforementioned loading / unloading unit 3, the window opening / closing mechanism 10, the main wafer transfer device 18 provided in the processing unit 2, the four cleaning units 12, 13, 14, 15, ozone gas generation unit 40 and water vapor generation unit 41 provided in the processing gas generation unit 24, chemical storage unit 25, and switching valves 50, 70, 106 in the processing units 23a to 23f, It means all elements that operate to achieve a given process condition, such as heaters 90, 91, etc.
- the control computer 19 is typically a general-purpose computer that can realize an arbitrary function depending on the software to be executed.
- the control computer 19 is attached to the calculation unit 19a having a CPU (central processing unit), the input / output unit 19b connected to the calculation unit 19a, and the input / output unit 19b. And a recording medium 19c storing control software.
- the recording medium 19c is subjected to a predetermined substrate processing method to be described later in the processing system 1 by being executed by the control computer 19.
- Control software program to be performed is recorded.
- the control computer 19 executes the control software so that various process conditions defined by a predetermined process recipe (for example, the temperature of the processing container 30) are realized for each functional element of the processing system 1. To control.
- the recording medium 19c is fixedly provided in the control computer 19, or is detachably attached to a reading device (not shown) provided in the control computer 19 and can be read by the reading device. There may be.
- the recording medium 19c is a hard disk drive in which control software is installed by a service person of the manufacturer of the processing system 1.
- the recording medium 19c is a removable disk such as a CD-ROM or DVD-ROM in which control software is written. Such a removable disk is read by an optical reading device (not shown) provided in the control computer 19.
- the recording medium 19c may be of any type of RAM (raNdom access memory) or ROM (read-Nly memory). Further, the recording medium 19c may be a cassette type ROM.
- any medium known in the technical field of computers can be used as the recording medium 19c.
- control software may be stored in a management computer that controls the control computer 19 of each processing system 1 in an integrated manner.
- each processing system 1 is operated by a management computer via a communication line and executes a predetermined process.
- wafers W are taken out one by one from the carrier C placed on the placing table 6 of the in / out port 4 by the take-out storage arm 11, and the wafer W taken out by the take-out storage arm 11 is transferred to the lower wafer transfer unit. Transport to 17.
- the main wafer transfer device 18 receives the wafer W from the wafer transfer unit 17 and appropriately carries it into the processing units 23a to 23f by the main wafer transfer device 18.
- the resist applied on the surface of the wafer W is water-solubilized.
- the wafer W that has been subjected to the predetermined resist water solubilization processing is transferred from each processing unit 23a to 23f by the transfer arm 18a. It is carried out as appropriate. Thereafter, the wafer W is appropriately loaded into the cleaning units 12, 13, 14, and 15 by the transfer arm 18a, and a cleaning process for removing the water-soluble resist adhering to the wafer W is performed with pure water or the like. Is done. As a result, the resist applied to the wafer W is peeled off.
- Each cleaning unit 12, 13, 14, 15 performs a cleaning process on the wafer W, then, if necessary, performs a particle and metal removal process by a chemical process, then performs a drying process, and then performs a wafer process.
- the wafer W is again transported to the upper delivery unit 16 by the transport arm 18a. Then, the wafer W is received from the delivery unit 16 to the take-out storage arm 11, and the wafer W from which the resist has been removed is stored in the carrier C by the take-out storage arm 11.
- the lid 81 is lifted by the operation of the cylinder device 84, and the processing space 83 is opened by releasing the lid 81 from the upper surface of the container body 80.
- the wafer W is loaded by the transfer arm 18a of the main wafer transfer device 18, and the wafer W is mounted on the mounting table 85.
- the wafer W is received in a state where the lifting pins 88 provided in the mounting table 85 are lifted by the operation of the cylinder device 89, and then lifted and lowered.
- the pins 88 are lowered to place the wafer W on the mounting table 85.
- the lid 81 is lowered to form a sealed processing space 83.
- a temperature raising step for raising the temperature of the processing container 30 and the wafer W is performed. That is, in this temperature raising step, the temperature of the processing vessel 30 and the wafer W is raised by operating the heaters 90 and 91.
- the ozone gas generated by the ozone gas generation unit 40 is supplied to the processing container 30 of the processing unit 23a from the processing side ozone gas flow path 51 through the temperature control flow paths 96 and 97 by switching the switching valve 50.
- the steam generated in the steam generating section 41 is passed through the bypass-side steam flow path 72 by the switching valve 70, through the temperature control flow path 95 and the second bypass-side steam flow path 72 ', and is discharged into the main discharge flow. Drain to Route 105.
- the air operation valve 117 provided in the N gas supply channel 115 is closed and the N gas is supplied.
- the supply of 2 2 is stopped.
- the switching valve 106 provided in the main discharge channel 105 discharges ozone gas discharged from the processing container 30 through the exhaust port 87 through the main discharge channel 105. Switch to a state that allows
- the ozone gas generator 40 supplies ozone gas generated by discharging in an oxygen-containing gas at a set pressure of 100 to 300 kPa, for example. Then, the flow rate of ozone gas is set to, for example, 2 to 5 liters / min by the needle valve 47 provided in the ozone main flow path 46.
- water vapor generated by boiling pure water is supplied at a set pressure of, for example, 80 to 95 kPa.
- steam is set to 2-5 g / min with the needle valve 66 provided in the water vapor
- the temperature of the processing vessel 30 and the wafer W is raised to a predetermined temperature while replacing the inside of the processing space 83 with an ozone atmosphere.
- the predetermined temperature for raising the temperature of the processing container 30 and the wafer W is, for example, 100 to 110 ° C.
- ozone gas is supplied from the processing-side ozone gas channel 51 into the processing space 83 through the temperature control channel 96 and the temperature control channel 97 on the bottom surface of the container body 80. For this reason, the ozone gas heated up while passing through the temperature control channel 96 and the temperature control channel 97 is supplied into the processing space 83.
- the high-temperature steam generated by the steam generating section 41 passes through the orifice 65 and the needle valve 66 provided in the steam main flow path 56, so the orifice 65 and the needle valve 66 are also It is maintained at a predetermined temperature.
- the ozone gas force discharged from the processing container 30 through the exhaust port 87 is discharged through the main discharge channel 105.
- the water vapor passed through the bypass-side water vapor flow path 72 is discharged to the main discharge flow path 105 via the temperature control flow path 95 and the second bypass-side water vapor flow path 72 ′.
- the set pressure of the relief valve 110 provided in the main discharge channel 105 is set to 50 to 75 kPa, for example.
- the ozone gas that has passed through the processing space 83 and the water vapor that has passed through the temperature control flow path 95 pass through the relief valve 110 provided in the main discharge flow path 105.
- Valve 110 is also maintained at a predetermined temperature.
- the processing vessel 30 and the wafer W are heated to a predetermined temperature (for example, 100 to 110 ° C), and the orifice 65 and the needle valve 66 provided in the steam main flow channel 56, and the main discharge
- the relief valve 110 provided in the flow path 105 is maintained at a predetermined temperature, and the temperature raising process is completed.
- a processing step for processing the wafer W stored in the processing container 30 is performed. That is, the water vapor generated in the water vapor generating section 41 is supplied to the processing space 83 in the processing container 30 of the processing unit 23a through the water vapor supply path 171 by switching the switching valve 70.
- the orifice 65 and the needle valve 66 provided in the water vapor main flow path 56 are already in a stable state at a predetermined temperature in the above-described temperature raising step. For this reason, the flow rate adjustment by the orifice 65 and the double dollar valve 66 is performed with high accuracy, and in the treatment process, the supply amount of water vapor supplied to the treatment space 83 in the treatment container 30 through the water vapor supply passage 171 becomes constant.
- the ozone gas flowing from the treatment-side ozone gas flow channel 51 through the temperature control flow channel 96 to the water vapor flowing through the treatment-side water vapor flow channel 71 for example, at a high temperature of about 110 ° C. are mixed. For this reason, when the ozone gas is mixed at the junction 71 ′, the condensation of the water vapor is prevented so that the water vapor flowing through the treatment side water vapor flow channel 71 is not cooled.
- the mixed gas of ozone gas and water vapor mixed in the processing-side water vapor channel 71 in this way further passes through the temperature control channel 97, and is supplied to the inside of the processing vessel 30 through the air supply port 86. Be paid.
- the temperature of the mixed gas of ozone gas and water vapor is adjusted to the same predetermined temperature as that of the processing container 30 while passing through the temperature adjusting flow path 97. For this reason, the mixed gas of ozone gas and water vapor is always supplied at a stable temperature without condensing water vapor into the processing container 30.
- a mixed gas of ozone gas and water vapor is supplied to the wafer W at a constant processing temperature inside the processing container 30 that has been heated to a predetermined temperature.
- the resist applied on the surface of the wafer W is oxidized and the water-solubilization treatment is efficiently performed.
- the mixed gas of ozone gas and water vapor discharged from the processing container 30 through the exhaust port 87 is discharged through the main discharge channel 105.
- the relief valve 110 provided in the main discharge channel 105 has already been lowered at a predetermined temperature in the above-described temperature raising step. It is in a steady state. Therefore, the flow rate adjustment by the relief valve 110 is performed with high accuracy, and the processing of the wafer W inside the processing container 30 is performed more stably.
- the inside of the treatment container 30 is filled with an N gas atmosphere.
- the ozone gas generated by the ozone gas generation unit 40 is not supplied to the processing container 30 but switched to the bypass side ozone gas flow path 52 by switching the switching valve 50. Further, by switching the switching valve 70, the steam generated by the steam generating unit 41 is not supplied to the processing container 30 but is passed through the bypass-side steam channel 72.
- the air operation valve 117 provided in the N gas supply channel 115 is opened,
- N gas is supplied to the processing container 30 through the processing-side ozone gas channel 51.
- the switching valve 106 provided in the path 105 switches to a state in which N gas discharged from the processing container 30 through the exhaust port 87 is discharged through the N gas discharge flow path 118. In this way
- N gas is supplied into the processing vessel 30 and the inside of the processing vessel 30 is set to an N gas atmosphere.
- the N gas purged inside the processing container 30 enters the main discharge channel 105.
- the orifice 65 and the needle valve 66 provided in the steam main flow path 56 continue to pass, the orifice 65 and the needle valve 66 are maintained in a heated state. Further, the water vapor passed through the bypass-side water vapor channel 72 is discharged to the main discharge flow channel 105 through the temperature control flow channel 95 and the second bypass-side water vapor channel 72 ′. For this reason, the relief valve 110 provided in the main discharge channel 105 is also maintained in a heated state, and stable control is avoided.
- N gas that has been heated through the temperature control channel 96 and the temperature control channel 97 is supplied into the processing container 30. Therefore, the temperature of the processing container 30 is also raised
- the lid 81 is raised by the operation of the cylinder device 84, and the processing space 83 is opened by releasing the lid 81 from the upper surface of the container body 80.
- the lift pins 88 are raised by the operation of the loader device 89, the wafer W is lifted from the mounting table 85, the transfer arm 18a of the main wafer transfer device 18 is moved below the wafer W, and the wafer W is received and processed.
- the wafer W is unloaded from the container 30.
- the relief valve 110 provided in the main discharge flow path 105 can also control the flow rate with high accuracy and make the process for the wafer W more stable. It becomes possible. As a result, the resist water-solubilization treatment for the wafer W can be performed stably. Therefore, the uniformity and reliability of resist stripping by the cleaning process in each of the subsequent cleaning units 12, 13, 14 and 15 and the uniformity and reliability of the entire etching process including the process in the processing system 1 are improved.
- the processing fluid applied in the present invention may be other processing gases besides ozone gas and water vapor.
- the present invention can be widely applied to processing processes using various processing fluids.
- the object to be processed is not limited to a semiconductor wafer, but may be other glass for LCD substrates, CD substrates, printed substrates, ceramic substrates, and the like.
- the present invention can be applied to, for example, a cleaning process for semiconductor wafers, LCD substrate glass, and the like.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Cleaning By Liquid Or Steam (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112007002728T DE112007002728T5 (de) | 2006-11-15 | 2007-11-12 | Bearbeitungssystem, Bearbeitungsverfahren und Speichermedium |
US12/308,372 US8136538B2 (en) | 2006-11-15 | 2007-11-12 | Processing system, processing method, and storage medium |
KR1020087016691A KR101058818B1 (ko) | 2006-11-15 | 2007-11-12 | 처리 장치와 처리 방법 및 기록 매체 |
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Application Number | Priority Date | Filing Date | Title |
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JP2006-309210 | 2006-11-15 | ||
JP2006309210A JP4842771B2 (ja) | 2006-11-15 | 2006-11-15 | 処理システムと処理方法および記録媒体 |
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WO2008059799A1 true WO2008059799A1 (fr) | 2008-05-22 |
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PCT/JP2007/071935 WO2008059799A1 (fr) | 2006-11-15 | 2007-11-12 | Système de traitement, procédé de traitement et support d'enregistrement |
Country Status (6)
Country | Link |
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US (1) | US8136538B2 (ja) |
JP (1) | JP4842771B2 (ja) |
KR (1) | KR101058818B1 (ja) |
DE (1) | DE112007002728T5 (ja) |
TW (1) | TW200831813A (ja) |
WO (1) | WO2008059799A1 (ja) |
Families Citing this family (3)
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KR101418812B1 (ko) * | 2012-10-31 | 2014-07-16 | 크린팩토메이션 주식회사 | 웨이퍼 퍼지 가능한 천장 보관 장치 |
JP2015182351A (ja) * | 2014-03-25 | 2015-10-22 | 富士フイルム株式会社 | 積層フィルムの製造方法 |
EP2944444A1 (en) | 2014-05-16 | 2015-11-18 | Meyer Burger AG | Wafer processing method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0697146A (ja) * | 1992-09-16 | 1994-04-08 | Dainippon Screen Mfg Co Ltd | スチームを用いた基板処理方法 |
JP2002110605A (ja) * | 2000-09-28 | 2002-04-12 | Dainippon Screen Mfg Co Ltd | 基板処理方法および装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US4911761A (en) * | 1984-05-21 | 1990-03-27 | Cfm Technologies Research Associates | Process and apparatus for drying surfaces |
US4795497A (en) * | 1985-08-13 | 1989-01-03 | Mcconnell Christopher F | Method and system for fluid treatment of semiconductor wafers |
TW471031B (en) * | 1997-01-08 | 2002-01-01 | Ebara Corp | Vapor feed supply system |
US6248168B1 (en) * | 1997-12-15 | 2001-06-19 | Tokyo Electron Limited | Spin coating apparatus including aging unit and solvent replacement unit |
JP2003224102A (ja) | 2002-01-30 | 2003-08-08 | Tokyo Electron Ltd | 基板処理装置及び基板処理方法 |
JP2003332322A (ja) | 2002-03-08 | 2003-11-21 | Tokyo Electron Ltd | 基板処理装置及び基板処理方法 |
JP2006309210A (ja) | 2005-04-01 | 2006-11-09 | Bridgestone Corp | 表示媒体用粒子及びそれを用いた情報表示用パネル |
-
2006
- 2006-11-15 JP JP2006309210A patent/JP4842771B2/ja active Active
-
2007
- 2007-11-12 US US12/308,372 patent/US8136538B2/en not_active Expired - Fee Related
- 2007-11-12 KR KR1020087016691A patent/KR101058818B1/ko active IP Right Grant
- 2007-11-12 WO PCT/JP2007/071935 patent/WO2008059799A1/ja active Application Filing
- 2007-11-12 DE DE112007002728T patent/DE112007002728T5/de not_active Withdrawn
- 2007-11-14 TW TW096143053A patent/TW200831813A/zh not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0697146A (ja) * | 1992-09-16 | 1994-04-08 | Dainippon Screen Mfg Co Ltd | スチームを用いた基板処理方法 |
JP2002110605A (ja) * | 2000-09-28 | 2002-04-12 | Dainippon Screen Mfg Co Ltd | 基板処理方法および装置 |
Also Published As
Publication number | Publication date |
---|---|
US8136538B2 (en) | 2012-03-20 |
KR101058818B1 (ko) | 2011-08-23 |
JP4842771B2 (ja) | 2011-12-21 |
JP2008124385A (ja) | 2008-05-29 |
DE112007002728T5 (de) | 2009-09-24 |
TWI346758B (ja) | 2011-08-11 |
US20100154836A1 (en) | 2010-06-24 |
TW200831813A (en) | 2008-08-01 |
KR20080087809A (ko) | 2008-10-01 |
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