WO2008062826A1 - Appareil de traitement, procédé de traitement et support d'enregistrement - Google Patents
Appareil de traitement, procédé de traitement et support d'enregistrement Download PDFInfo
- Publication number
- WO2008062826A1 WO2008062826A1 PCT/JP2007/072540 JP2007072540W WO2008062826A1 WO 2008062826 A1 WO2008062826 A1 WO 2008062826A1 JP 2007072540 W JP2007072540 W JP 2007072540W WO 2008062826 A1 WO2008062826 A1 WO 2008062826A1
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- Prior art keywords
- processing
- space
- pressure
- lid
- low
- Prior art date
Links
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- 238000007789 sealing Methods 0.000 claims abstract description 39
- 238000012545 processing Methods 0.000 claims description 484
- 230000007246 mechanism Effects 0.000 claims description 61
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical group [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 58
- 239000000463 material Substances 0.000 claims description 24
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- 238000003672 processing method Methods 0.000 claims description 19
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- 238000005260 corrosion Methods 0.000 claims description 8
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 5
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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
- H01L21/67—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
- H01L21/67126—Apparatus for sealing, encapsulating, glassing, decapsulating or the like
-
- 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
- G03F7/70808—Construction details, e.g. housing, load-lock, seals or windows for passing light in or out of apparatus
-
- 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
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31127—Etching organic layers
- H01L21/31133—Etching organic layers by chemical means
- H01L21/31138—Etching organic layers by chemical means by dry-etching
-
- 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
- H01L21/67155—Apparatus for manufacturing or treating in a plurality of work-stations
- H01L21/6719—Apparatus for manufacturing or treating in a plurality of work-stations characterized by the construction of the processing chambers, e.g. modular processing chambers
-
- 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
Definitions
- Processing apparatus processing method, and recording medium
- the present invention relates to a processing apparatus and a processing method for processing an object to be processed such as a semiconductor wafer or 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 space in a processing container as a processing process for removing a resist applied to the surface of a semiconductor wafer (hereinafter referred to as "wafer").
- a mixture gas of water and water vapor is supplied, and the resist is oxidized by the mixed gas to change it into water-soluble, and then removed by pure water.
- a processing container comprising a processing container main body having an opening formed on the upper surface side and a lid that closes the opening from above is used.
- a configuration with which it is provided is known.
- the lid is lifted from the processing container body to open the opening, and the object to be processed is put into the processing container body from the opening. Then, a closed processing space is formed by bringing the lower surface of the peripheral edge of the lid into close contact with the periphery of the opening (upper surface of the peripheral edge of the processing container body).
- the lid is supported from above by a lid moving mechanism such as a cylinder mechanism, for example, and is lifted and lowered with respect to the processing container body by force and operation of the lid moving mechanism (Japanese Patent Laid-Open No. 2000-003). No. 332322). Further, in this configuration, the pressure S is pressed by the pressure applied by the lid moving mechanism, so that the lid can be brought into close contact with the processing container main body with a force S.
- a lid moving mechanism such as a cylinder mechanism, for example
- a sealing member such as an o-ring is provided on the upper surface of the peripheral edge of the processing container body to seal between the lower surface of the peripheral edge of the lid and the processing container main body.
- two sealing members are provided on the upper surface of the peripheral edge of the processing vessel body, and an exhaust passage is connected between the sealing bodies to reduce the pressure between the sealing members.
- the present invention has been made in view of the above points, a processing apparatus capable of holding the lid of the processing container with a simple structure and preventing the atmosphere of the processing space from leaking outside the processing container, It is an object to provide a processing method and a recording medium.
- a processing apparatus for storing an object to be processed in a processing space in a processing container, wherein the processing container includes a processing container main body and the processing container.
- a lid that closes the opening of the physical container body, and the treatment space is formed by closing the opening with the lid, and the treatment space is formed outside the treatment space.
- a low-pressure space that is lower in pressure than the physical space, and a first seal portion that blocks the low-pressure space from the processing space by sealing between the processing container main body and the lid body; A second seal portion that shuts off the low-pressure space from the outside of the processing container by sealing between the processing container main body and the lid body outside the first seal portion, A low-pressure space pressure adjusting mechanism for adjusting an internal pressure of the low-pressure space, and the internal pressure of the low-pressure space is an inner side where leakage occurs in the first seal portion in a state where the seal is performed in the second seal portion.
- the process is characterized by being adjusted by the low-pressure space pressure adjustment mechanism so that the internal pressure of the processing space becomes equal to or less than the pressure outside the processing container when a leak state occurs. Location is provided.
- the internal pressure of the low-pressure space is adjusted so that the internal pressure of the processing space becomes a negative pressure with respect to the pressure outside the processing container when the inside leak state occurs. It may be adjusted by a mechanism.
- the internal pressure of the processing space in a normal sealing state where sealing is performed in both the first sealing portion and the second sealing portion is a positive pressure with respect to the pressure outside the processing container.
- the first seal portion may be higher in heat resistance and corrosion resistance to the atmosphere in the processing space than the second seal portion.
- the second seal part may be higher than the first seal part and may have a sealing performance.
- the first seal portion may be formed of a fluororesin.
- the first seal portion contact surface with which the first seal portion contacts may be formed of silicon carbide.
- the second seal portion may be a lip seal.
- the processing container main body has a structure including a main body base material and a main body attachment member detachably attached to the main body base material, and a processing fluid is provided in the first seal portion and the processing space. And a discharge port for discharging the processing fluid from the processing space may be provided in the main body mounting member.
- the volume of the low-pressure space may be larger than the volume of the processing space.
- a lid moving mechanism that moves the lid relative to the processing container main body, and the lid in a state in which the opening is closed is attached to the processing container main body by the lid moving mechanism; It may be configured to be pressed against.
- the processing fluid supplied to the processing space may be ozone gas, water vapor, or a mixed fluid of ozone gas and water vapor.
- a processing method for storing and processing a target object in a processing space in a processing container wherein the target object is an opening formed in a processing container main body of the processing container.
- the processing container is carried into the inside of the processing container main body, the opening is closed by the lid of the processing container, the processing space is formed, and the pressure is lower than the processing space outside the processing space.
- a low-pressure space is formed, and the outside of the processing container, the low-pressure space, and the processing space are in a normal sealed state, and the low-pressure space is depressurized, and the internal pressure of the low-pressure space is reduced to the processing space and the low-pressure space.
- the internal pressure of the processing space is equal to or lower than the pressure outside the processing vessel. Pressure in the processing space And wherein processing the processed, the processing method is provided.
- the internal pressure of the low-pressure space is such that the internal pressure of the processing space when the inside leak state is negative with respect to the pressure outside the processing container.
- the object to be processed in the processing space may be processed under pressure. Further, the object to be processed in the processing space may be processed by setting the internal pressure of the processing space in the normal seal state to a positive pressure with respect to the pressure outside the processing container. Further, the object to be processed in the processing space may be processed while pressing the lid in a state where the opening is closed against the processing container main body.
- the processing object in the processing space may be processed by supplying ozone gas, water vapor, or a mixed fluid of ozone gas and water vapor to the processing space.
- a recording medium on which a program that can be executed by a control computer of a processing device is recorded, and the program is executed by the control computer,
- a recording medium is provided, characterized in that the processing apparatus performs any of the processing methods described above.
- the internal pressure of the processing space in the inner leak state in which a leak occurs in the first seal portion is adjusted to be equal to or lower than the pressure outside the processing container.
- FIG. 1 is a plan view of a processing system.
- FIG. 2 is a side view of the processing system.
- 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 and showing a state in which an opening is closed by a lid (normal seal state).
- FIG. 5 is a longitudinal sectional view showing a schematic configuration of a processing vessel and showing a state in which an opening is opened.
- FIG. 6 is a plan view of a processing container main body.
- FIG. 7 is a bottom view of the lid.
- FIG. 8 is an enlarged longitudinal sectional view showing an inner leak state.
- FIG. 1 is a plan view of a processing system 1 that is effective in the present embodiment.
- Fig. 2 is a side view thereof.
- components having substantially the same functional configuration are denoted by the same reference numerals, and redundant description is omitted.
- the 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 unit 2 and the loading / unloading unit 3 is set in the Y direction in the horizontal plane.
- Direction, the arrangement direction of the processing unit 2 and the loading / unloading unit 3 (direction perpendicular to the Y direction) is defined as the X direction, and the vertical direction is defined as the vertical 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 (carriers C) that can store substantially horizontally 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 mounted in a predetermined position side by side in the vertical direction of the horizontal plane.
- 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.
- 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 provided.
- the window part 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 heel direction and the heel direction, and is configured to be rotatable about the heel 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, Access 17 and in-out port 4 from the processing section On the other hand, the wafer W can be transferred 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 ozone gas generation unit 40 (described later) for generating ozone gas as a processing fluid supplied to the processing units 23a to 23f, and a water vapor generation unit 41 (described later) for generating water vapor.
- a gas generation unit 24 and a chemical solution storage unit 25 for storing a predetermined processing solution to be sent to the cleaning units 12, 13, 14, and 15 are arranged.
- a fan filter unit (FFU) 26 for downflowing clean air is disposed in each unit and the main wafer transfer device 18.
- 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 movable in the X direction and the Z direction, and is configured 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 stages, two in each of the upper and lower stages. As shown in Fig. 1, the cleaning units 12, 13 and the cleaning units 14, 15 are on the wall 27 that forms the boundary between them.
- the cleaning units 12, 13, 14, 15 have substantially the same configuration except that the force S has a symmetrical structure with respect to the symmetric structure, except that it is symmetrical.
- 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.
- 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.
- 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! /.
- piping systems for supplying ozone gas and water vapor as processing fluids 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 container 30 is supplied with ozone gas and water vapor as processing fluid from the ozone gas generating unit 40 and the 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, and the ozone gas generated by the ozone gas generation unit 40 is passed through the treatment-side ozone gas flow path 51 and processed by the processing unit.
- the state in which the gas is supplied to the processing container 30 of the gas 23a and the state in which the gas is supplied to the bypass side ozone gas flow path 52 without being supplied to the processing container 30 are switched.
- the downstream side of the bypass-side ozone gas flow channel 52 is connected to a main discharge flow channel 105, which will be described later, via a backflow prevention orifice 53 that prevents backflow of ozone gas.
- the water vapor generating unit 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.
- the water vapor main flow path 56 provided corresponding to is connected so as to branch.
- An escape passage 59 having a pressure switch 57 and a relief valve 58 is connected to the water vapor source flow passage 55, and when the pressure of the water vapor generation part 41 exceeds a set pressure value, a part of the water vapor However, it is exhausted to the outside through the escape passage 59. As a result, the water vapor source channel 55 is always maintained at a constant water vapor pressure.
- a pipe heat retention heater 60 is attached to the steam source flow path 55, and is kept at a temperature of, for example, about 110 ° C to about 120 ° C. Thereby, 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.
- a processing-side steam flow channel 71 Downstream of the main steam flow channel 56 is a processing-side steam flow channel 71 for supplying water vapor to the processing vessel 30 via a switching valve 70, and a bypass-side water vapor flow that bypasses the processing vessel 30 and passes water vapor.
- the switching valve 70 is a three-way valve, and the steam generated by the steam generating section 41 is supplied to the processing container 30 of the processing unit 23a via the processing-side steam flow path 71 and not supplied to the processing container 30. It is possible to switch to a state where it is passed through the bypass-side steam channel 72.
- FIG. 4 is a longitudinal sectional view showing a schematic configuration of the processing container 30, and shows a state in which the opening 80 a of the processing container main body 80 is closed by the lid 81.
- FIG. 5 shows a state where the lid 81 is separated from the opening 80a.
- FIG. 3 is a plan view of the processing container body 80 of the processing container 30 as viewed from above.
- FIG. 7 is a bottom view of the lid 81 of the processing container 30 as viewed from below.
- the processing container 30 has a processing container body 80 having a hollow cylindrical shape with an open top surface and a closed bottom surface, and an upper surface side of the processing container body 80. And a disc-shaped lid 81 that closes the formed opening 80a (upper surface opening) from above. That is, by closing the opening 80a with the lid 81, a processing space 83 in which the wafer W is stored and processed is formed inside the processing container 30 (between the processing container main body 80 and the lid 81). It is configured.
- a space between the peripheral edge portion of the processing container main body 80 and the peripheral edge portion of the lid body 81 is larger than the processing space 83 in order to bring the lid body 81 into close contact with the processing container main body 80.
- a low-pressure space 84 that is reduced in pressure is formed.
- a lid moving mechanism 86 that moves the lid 81 up and down relative to the processing vessel main body 80 is provided above the processing vessel 30.
- a mounting table 91 for mounting the wafer W substantially horizontally is provided on the bottom surface of the processing container main body 80. Further, on the bottom surface of the processing vessel main body 80, on both sides of the mounting table 91, a supply port 92 for supplying ozone gas and water vapor as processing fluid to the processing space 83, and an exhaust port 93 for discharging the processing fluid from the processing space 83 are provided. Is open. As will be described later, N gas (nitrogen gas) as a purge gas can be supplied to the processing space 83 through the supply port 92, and N gas can be discharged through the discharge port 93.
- N gas nitrogen gas
- the supply port 92 is connected to the downstream side of the processing-side ozone gas flow path 51 and the downstream side of the processing-side water vapor flow path 71.
- a main discharge channel 131 described later is connected to the discharge port 93.
- a suction port 95 for sucking and holding the wafer W is opened on the upper surface of the mounting table 91.
- a suction suction path 96 is connected to the suction port 95, and a suction suction mechanism 97 including, for example, an ejector is connected to the suction suction path 96 outside the processing container 30. ing. That is, the suction suction path 96 and the suction port 95 are depressurized by the operation of the suction suction mechanism 97 so that the lower surface of the wafer W is sucked and held on the mounting table 91.
- the processing container body 80 is provided with a double seal structure that seals between the processing container body 80 and the lid 81 outside the processing space 83.
- first seal portion 101 that blocks the low-pressure space 84 from the processing space 83 by sealing between the processing vessel main body 80 and the lid 81, and the processing container main body 80 outside the first seal portion 101.
- second seal portion 102 that shuts off the low-pressure space 84 (and the processing space 83) from the outside of the processing container 30 by sealing between the cover 81 and the lid 81.
- the first seal portion 101 is provided between the processing space 83 and the low pressure space 84. That is, the processing container main body 80 protrudes upward from the bottom surface of the processing container main body 80 on the inner side of the cylindrical side wall 80b and on the outer side of the mounting table 91. Further, it is provided in a substantially circular ring shape so as to surround the mounting table 91 along the inner side surface of the side wall 80b (see FIG. 6). The upper surface force of the first seal portion 101 is pressed against the lower surface of the lid 81 (first seal portion contact surface 116a described later) and is brought into close contact therewith.
- the inner space force treatment space 83 surrounded by the first seal portion 101 is formed, and a space outside the first seal portion 101 (formed between the first seal portion 101 and the side wall 80b).
- the annular gap is configured to be a lower groove portion 84a that constitutes a lower portion of the low-pressure space 84. That is, the processing space 83 and the lower groove portion 84a (low pressure space 84) are cut by the first seal portion 101.
- the first sealing portion 101 Since the first seal portion 101 is directly exposed to the atmosphere (processing fluid) in the processing space 83 during the processing of the wafer W, the first sealing portion 101 is resistant to corrosion in the atmosphere in the processing space 83. It is required to be formed of an excellent material and a material excellent in heat resistance against the temperature in the processing space 83. In particular, it is desirable that the second seal portion 102 that is not directly exposed to the atmosphere in the processing space 83 is made of a material having higher corrosion resistance, heat resistance, etc. to the atmosphere in the processing space 83. For example, a fluororesin such as PTFE (polytetrafluoroethylene) can be used as such a material.
- PTFE polytetrafluoroethylene
- the first seal portion contact surface 116a in contact with the first seal portion 101 in the lid 81 is made of, for example, silicon (Si), silicon carbide (SiC) quartz, or metal. It is formed of a fluororesin-coated one. That is, in this embodiment, the first seal is obtained by bringing the fluororesin and silicon carbide (or silicon) into surface contact. The seal performance in the portion 101 is configured to be exhibited.
- the peripheral edge of the bottom surface of the processing space 83 formed by only the first seal portion 101, the supply port 92, the discharge port 93, the suction port 88, the peripheral portion of the mounting table 91, and the like described above is also the first seal portion. It is made of the same material as 101.
- first seal portion 101 is configured to be detachable integrally with the peripheral edge of the bottom surface of the processing space 83, the supply port 92, the discharge port 93, the suction port 88, the peripheral portion of the mounting table 91, and the like.
- the processing container main body 80 includes a main body base material 105 made of a material having good thermal conductivity such as aluminum, a first seal portion 101, and the like, and is detachable from the main body base material 105. And a body attachment member 106 attached to the body.
- the main body attachment member 106 is formed in a substantially circular ring shape in plan view (see FIG. 6), and is provided on the inner side of the side wall 80b of the processing container main body 80. And it is detachably fixed to the main body base material 105 by mounting parts such as bolts (not shown). Further, the main body mounting member 106 is formed of a material excellent in corrosion resistance and heat resistance to the atmosphere in the processing space 83, such as PTFE.
- a first seal portion 101 is formed on the main body attachment member 106. Further, the supply port 92, the discharge port 93, and the suction port 88 described above are opened to the main body attachment member 106 on the inner side of the first seal portion 101.
- most of the mounting table 91 (that is, the portion that is covered with the wafer W in the state where the wafer W is mounted on the mounting table 95) is formed by the main body substrate 105.
- the mounting table 9 1 The peripheral edge of the main body is formed by the main body mounting member 106. Therefore, the first seal portion 101, the supply port 92, the discharge port 93, the suction port 88, the peripheral portion of the mounting table 91, etc.
- the processing vessel body 80 can be attached and detached. That is, when the first seal portion 101 is replaced, the entire main body attaching member 106 may be replaced. With such a configuration, the first seal portion 101, the supply port 92, the discharge port 93, the suction port 88, the peripheral portion of the mounting table 91, and the like can be replaced at once, and the maintenance work and the like can be simplified. it can.
- the second seal portion 102 is, for example, a lip seal, and is an inverted truncated cone from the upper surface of the side wall 80b.
- a lip 102a is formed so as to protrude into a surface shape. In plan view, it has a substantially circular ring shape (see FIG. 7), and is provided along the upper surface of the side wall 80b of the processing vessel body 80.
- the lip 102a has a distal end portion (side wall) above the base end in a state where the lid 81 is separated from the processing vessel body 80, that is, in a state where no external force is applied.
- 80b As it goes from the upper surface side to the second seal portion contact surface 115a side (to be described later), the shape gradually slopes away from the opening 80a and is inclined outward, that is, an inverted truncated cone surface shape. .
- the lip 102a is sandwiched between the processing container main body 80 and the lid 81 and pushed outward. Can be spread.
- the second seal portion 102 is normally not directly exposed to the atmosphere of the processing space 83, it is formed of a material that has a lower corrosion resistance to the atmosphere of the processing space 83 than the first seal portion 101. However, if a leak occurs in the first seal portion 102, it may be exposed to the atmosphere of the processing space 83, so it is desirable to have appropriate corrosion resistance. In addition, it is preferable to form the elastic body with higher flexibility than the first seal portion 101.
- the second seal portion 102 in the present embodiment is formed of Viton (registered trademark, fluorine rubber).
- a surface (second seal portion contact surface 115a described later) with which the second seal portion 102 contacts in the lid 81 is formed of aluminum. That is, in the present embodiment, the second seal portion 102 is configured to be sealed by bringing the fluororubber and aluminum into surface contact.
- the second seal portion 102 Since the second seal portion 102 is formed of an elastically deformable material, it has a high sealing performance between the processing vessel main body 80 and the lid body 81. The sealing performance higher than that of the single sealing portion 101 is exhibited. In other words, the adhesiveness between the second seal portion 102 and the lid 81 (second seal portion contact surface 115a described later) is determined by the first seal portion 101 and the lid 81 (first later described first). The seal contact surface 116a) It has a structure higher than the adhesion between them.
- the lid 81 when the lid 81 is slightly raised with respect to the processing container main body 80, the upper surface of the first seal portion 101 is slightly separated from the lid 81.
- the second sealing portion 102 is deformed so that the lip 102a rises following the lid 81 by the elastic force (restoring force) of the lip 102a. For this reason, the sealing at the second seal portion 102 is continued without leaving the distal end portion lid 81 of the lip 102a.
- the lid 81 will be described.
- the lid 81 is provided on the lower surface of the lid base 115 made of a material having good thermal conductivity such as aluminum and the lid base 115, for example.
- the lower surface peripheral edge portion of the lower surface plate 116 is an annular first seal portion contact surface 116a with which the first seal portion 101 contacts.
- the lower surface peripheral portion of the lid base material 115 constitutes the annular second seal portion contact surface 115a with which the above-described second seal portion 102 contacts on the outer peripheral side of the lower plate 116! /,
- annular upper groove portion constituting the upper portion of the low pressure space 84 84b is provided in the peripheral portion of the lid base material 115 (between the first seal portion contact surface 116a and the second seal portion contact surface 115a).
- the lower groove portion 84a and the upper groove portion 84b communicate with each other when the opening portion 80a is closed by the lid 81, and thereby, an annular low-pressure space is formed around the processing space 83. 84 is formed.
- a low-pressure space pressure adjusting path 118 is connected to the upper groove portion 84b, so that the low-pressure space
- a low pressure space pressure adjustment mechanism 120 that can adjust the internal pressure of the low pressure space 84 is connected to the pressure adjustment path 118 outside the processing vessel 30.
- the low-pressure space pressure adjusting mechanism 120 is provided with, for example, an ejector.
- the low pressure space pressure adjusting mechanism 120 can suck and reduce the atmosphere in the upper groove portion 84b (low pressure space 84). For example, as described later, the normal seal state (the first seal portion 101 and the first seal portion 101)
- the internal pressure P of the low-pressure space 84 in the state where sealing is normally performed in either of the second seal portions 102)
- the low-pressure space pressure adjusting mechanism 120 has a positive pressure that is negative with respect to the internal pressure P force of the processing space 83 when the inside leak state occurs and the pressure P outside the processing vessel 30.
- Control is performed so as to adjust the internal pressure P of the low pressure space 84 in the normally sealed state.
- the force S can be reduced by reducing the internal pressure P of 3. In other words, the volume V of the low pressure space 84 is increased.
- volume V is treated
- the volume of the space 83 may be larger than V.
- the lid 81 is held from above by a lid moving mechanism 86.
- a lid moving mechanism 86 for example, a cylinder provided with a cylinder body 86a and a piston rod 86b as shown in FIG. A mechanism is used.
- the cylinder main body 86a is attached to a fixed base 122 fixed to the casing of the processing unit 23a and the like above the lid 81.
- the piston rod 86b is protruded from the lower end of the cylinder body 86a and is provided with the length direction directed upward and downward (Z direction), and expands and contracts along the upward and downward direction below the cylinder body 86a. It is provided as follows. A central portion of the upper surface of the lid body 81 (lid body base 115) is fixed to the lower end portion of the piston rod 86b.
- the lid 81 is lowered integrally with the piston rod 86 b by extending the piston rod 86 b in the lid moving mechanism 86, approaches the processing vessel main body 80, and the piston opening By contracting 86b, the piston rod 86b is lifted together and separated from the processing vessel main body 80.
- the piston rod 86b is contracted by the lid moving mechanism 86 and the lid 81 is raised to open the opening 80a and open the processing space 83. It is supposed to do.
- the processing space 83 is moved from the lid moving mechanism 86 to the lid 81. It is possible to apply a pressing force (thrust) against the positive pressure. That is, the cover body 81 is urged to press downward from the outside (upper side) of the processing container 30 by the pressure applied by the cover body moving mechanism 86, thereby holding the cover body 81 so that the opening 80a is not opened.
- the first seal portion 101 and the second seal portion 102 are surely brought into close contact with the first seal portion contact surface 116a and the second seal portion contact surface 115a.
- the processing container 30 is provided with heaters 125 and 126 for adjusting the temperature of the processing space 83.
- the heater 125 is attached to the lower part of the processing container main body 80 (main body base material 105).
- the heater 126 is provided on the lid 81 (lid body base 115).
- the processing container 30 is provided with a wafer elevating mechanism 128 for elevating the wafer W on the mounting table 91.
- the wafer elevating mechanism 128 includes elevating pins 128a that contact the lower surface of the wafer W and hold the wafer W, and elevating drive means 128b that moves the elevating pins 128a up and down relative to the mounting table 91.
- the elevating pins 128a are passed through through holes 128c provided so as to penetrate vertically between the upper surface of the mounting table 91 and the lower surface of the processing container main body 80. Between the lifting pin 128a and the through hole 128c, there is a through hole sealing member 128d.
- the atmosphere in the processing space 83 is configured not to leak outside through the through hole 128c.
- the lifting pins 128a and the through holes 128c are provided in the central portion of the mounting table 91 (portion constituted by the main body base material 105) in a plan view, and the lower surface central portion of the wafer W is provided.
- the lift pin 128a is placed on and supported by the upper end of the lift pin 128a.
- the raising / lowering driving means 128b is installed below the processing container main body 80.
- the main discharge flow path 131 connected to the discharge port 93 has a switching valve 1 32, a pressure switch 133, a backflow prevention orifice 134, an air operation valve 135, and a relief valve 136. It is provided in order.
- the downstream end of the main discharge channel 131 is connected to an exhaust gas processing device 137 equipped with an ozone killer or the like.
- the bypass side ozone gas channel 52 and the downstream side of the bypass side water vapor channel 72 described above are connected between the backflow prevention orifice 134 and the air operated valve 135. Yes.
- an N gas supply channel is provided in the middle of the processing-side ozone gas channel 51.
- This N gas supply channel 141 is connected. This N gas supply channel 141 is supplied from an N supply source outside the processing system 1.
- N gas supply channel 142 It is branched from the N gas source channel 142 for supplying N gas. N gas supply
- the air supply valve 141 is provided with an air operated valve 143 that controls the supply of N gas.
- an N gas discharge flow path 145 is connected to the switching valve 132 provided in the main discharge flow path 131.
- the switching valve 132 is a three-way valve. As will be described later, ozone gas and water vapor as processing fluid discharged from the processing container 30 through the discharge port 93 are discharged through the main discharge flow path 131, as will be described later. As described above, the N gas as the purge gas discharged from the processing container 30 through the discharge port 93 is discharged through the N gas discharge flow path 145.
- the other processing units 23b to 23f also have the same configuration.
- Each functional element of the processing system 1 is connected to a control computer 19 (see FIG. 1) that automatically controls the operation of the entire processing system 1 via signal lines and the like.
- 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 included in the processing gas generation unit 24, medicine ⁇ Night storage unit 25, and further, switching valves 50, 70, 132, lid moving mechanism 86, low-pressure space pressure adjusting mechanism 120, heaters 125, 126, etc. in each processing unit 23a-23f It means all the elements that work to realize.
- 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 an arithmetic unit 19a having a CPU (central processing unit), an input / output unit 19b connected to the arithmetic unit 19a, and an input / output unit 19b. And a recording medium 19c storing control software.
- the recording medium 19c stores control software (program) that is executed by the control computer 19 to cause the processing system 1 to perform a predetermined substrate processing method to be described later.
- the control computer 19 causes each functional element of the processing system 1 to change various process conditions (for example, the temperature of the processing space 83 and the internal pressure P of the processing space 83) defined by a predetermined process recipe.
- the internal pressure P of the low pressure space 84 is controlled to be realized.
- 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 format of RAM (Random Access Memory) or ROM (Read Only 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, Execute the 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 appropriately unloaded from the processing units 23a to 23f by the transfer arm 18a. 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 performs a particle and metal removal process by a chemical process as necessary, and 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 lid moving mechanism 86, and the processing space 83 is opened by releasing the lid 81 from the upper surface of the processing container body 80. Further, the raising / lowering pins 128a of the wafer raising / lowering mechanism 128 are protruded above the mounting table 91 and the opening 80a. In this state, the wafer W is caused to enter between the lid 81 and the processing container main body 80 by the transfer arm 18a of the main wafer transfer device 18 and placed on the upper end of the lift pins 128a.
- the transfer arm 18a is retracted from between the lid 81 and the processing container body 80, and the lift pins 128a holding the wafer W are lowered. That is, the wafer W is carried into the processing container main body 80 from the opening 80a, and the wafer W is mounted on the mounting table 91.
- the lid body moving mechanism 86 is actuated to lower the lid body 81 to be close to the processing container body 80, and the lid body 81 closes the opening 80a.
- first seal portion 101 and the first seal portion contact surface 116a are brought into close contact with each other, and the second seal portion 102 and the second seal portion contact surface 115a are brought into close contact with each other.
- a sealed processing space 83 is formed on the inner side of the first seal portion 101.
- the lower opening of the lower groove portion 84a of the processing container body 80 and the lower opening of the upper groove portion 84b of the lid 81 communicate with each other vertically, and the lower groove portion 84a and the upper groove portion are communicated with each other.
- the low pressure space 84 is formed by 84b.
- the low pressure space 84 is formed between the first seal portion 101 and the second seal portion 102 so as to surround the processing space 83, and the first seal portion 101 and the second seal portion 102 are formed.
- the seal portion 102 is sealed.
- the first seal portion 101 and the second seal portion 102 are in close contact with the lower surface of the lid 81, and double sealing is performed, so that the atmosphere outside the processing container 30 and the processing space are increased.
- the low-pressure space 84 is blocked from each other. That is, a normal sealing state is achieved.
- the low pressure space 84 is decompressed by the operation of the low pressure space pressure adjusting mechanism 120. That is, the internal pressure of the low-pressure space 84, which is almost the same as the pressure outside the processing container 30 (external pressure) P, is
- O LI O L1 exerts a force to press the lid 81 against the processing vessel main body 80.
- the lid 81 is locked so as not to open the opening 80a mainly by the pressure of the lid moving mechanism 86 and the weight of the piston rod 86b and the lid 81.
- Force generated by the pressure difference between P o and the internal pressure P of the low-pressure space 84 Auxiliary force to lock the lid 81
- the target value of the internal pressure P in the low pressure space 84 is the inside leak state (in the first seal portion 101).
- the pressure should be negative for P2O.
- a target value of the internal pressure P is, for example, described above. It can be obtained as a pressure satisfying the formula (1).
- the external pressure P in the equation (1) is atmospheric pressure
- the internal pressure P in the processing space 83 is, for example, about 50 gage pressure.
- the internal pressure P of the low pressure space 84 is, for example, a gauge pressure.
- the processing space 83 and the wafer W are raised by the operation of the heater 125 126. Let warm. Further, the ozone gas generated by the ozone gas generation unit 40 is supplied to the processing space 83 through the processing side ozone gas flow path 51 and the supply port 92 by switching the switching valve 50, and the internal pressure of the processing space 83 is increased. Thus, the temperature raising and pressurizing step is performed. On the other hand, the water vapor generated in the water vapor generating section 41 is passed through the bypass-side water vapor flow path 72 and discharged to the main discharge flow path 131 by switching the switching valve 70. In the heating and pressurization process, N gas is supplied.
- the switching valve 132 provided in the main discharge channel 131 switches to a state in which ozone gas discharged from the processing container 30 through the discharge port 93 is discharged through the main discharge channel 131.
- the ozone gas is discharged from the processing space 83 through the discharge port 93 and is discharged through the main discharge flow path 131. Further, the water vapor passed through the bypass side water vapor channel 72 is discharged to the main discharge channel 131. In this way, the mixed gas of ozone gas and water vapor is discharged from the main discharge passage 131 to the outside through the air operation valve 135 and the relief valve 136.
- the set pressure of the relief valve 136 is set to about 50 kPa and 75 kPa, for example.
- the internal pressure P in the processing space 83 during the heating and pressurizing process is changed to the pressure P outside the processing vessel 30.
- the internal pressure of the low pressure space 84 is the set pressure P described above (for example, about 80 kPa 90 kPa as gauge pressure)
- the temperature of the processing space 83 and the wafer W is raised to a predetermined temperature (eg, about 100 ° C. to 110 ° C.), and the temperature raising and pressurizing step is completed.
- a predetermined temperature eg, about 100 ° C. to 110 ° C.
- a processing step for processing the wafer W stored in the processing space 83 is performed. That is, the steam generated in the steam generating section 41 is not supplied from the processing-side steam channel 71 to the processing space 83. However, ozone gas is supplied from the treatment-side ozone gas flow path 51 to the treatment space 83.
- the processing space 83 is maintained at a constant processing temperature. In this way, by supplying a mixed fluid (gas) of ozone gas and water vapor as a processing fluid to the wafer W, a water solubilization process for oxidizing the resist applied to the surface of the wafer W is performed.
- the mixed gas of ozone gas and water vapor discharged from the processing space 83 through the discharge port 93 is discharged through the main discharge channel 131.
- the internal pressure P of the processing space 83 during the processing step is, for example, approximately the same as that in the heating and pressurizing step (gauge pressure).
- the internal pressure of the low pressure space 84 is maintained at the set pressure P described above (for example, about 80 kPa 90 kPa in terms of gauge pressure).
- the ozone gas generated by the ozone gas generation unit 40 is not supplied to the processing space 83 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 section 41 is not supplied to the processing space 83 but is passed through the bypass-side steam channel 72.
- the air operated valve 143 provided in the N gas supply channel 141 is opened,
- N gas is supplied to the processing space 83 through the processing-side ozone gas flow path 51.
- the switching valve 132 provided in the channel 131 switches to a state in which the N gas discharged from the processing space 83 through the discharge port 93 is discharged through the N gas discharge channel 145. In this way
- N gas is supplied to the processing space 83 and the processing space 83 is replaced with an N gas atmosphere.
- the wafer W is unloaded. First, the suction of the wafer W by the suction port 95 is stopped. Furthermore, the internal pressure of the low pressure space 84 is increased by the operation of the low pressure space pressure adjusting mechanism 120 and recovered to the same level as the external pressure P, for example. And the lid moving machine o
- the lid 81 is raised, and the lid 81 is released from the upper surface of the processing container main body 80, thereby opening the processing space 83 84.
- the elevating pin 128a is raised, the wafer W is pushed up above the mounting table 91 and the opening 80a, and carried out from the opening 80a.
- the transfer arm 18a of the main wafer transfer device 18 enters between the lid 81 and the processing container main body 80, and the wafer W is received from the lift pins 128a by the transfer arm 18a. afterwards, The wafer W is unloaded from the processing container 30 by withdrawing the transfer arm 18a and the wafer W from between the lid 81 and the processing container main body 80.
- the internal pressure P of the treatment space 83 is ozone gas, water vapor, N gas, etc.
- the pressure is increased to a positive pressure with respect to the external pressure P of the processing vessel 30.
- the internal pressure P in the processing space 83 is about the gauge pressure as described above.
- the set pressure is maintained at about 50kPa to 70kPa. Therefore, in the processing space 83, the lid 81 is separated from the processing container main body 80 due to the differential pressure between the external pressure P and the internal pressure P of the processing space 83.
- the lid 81 is locked by receiving a force generated by the pressure applied by the lid moving mechanism 86 and the negative pressure of the low-pressure space 84. That is, it is held so as not to be separated from the processing container main body 80. Even if the pressure applied to the lid moving mechanism 86 decreases due to, for example, an abnormality in the processing unit 23a, the negative pressure is lower than the internal pressure P force S, the external pressure P in the low pressure space 84, or the internal pressure P in the processing space 83. State (for example,
- the pressure satisfying the above-mentioned formula (1) is maintained by the force S to maintain the lock of the lid 81.
- the lid 81 is lifted from the processing vessel main body 80 against the pressure of the moving mechanism 86, the weight of the piston rod 86b, and the weight of the lid 81. Then, the first seal portion 101 is separated from the first seal portion contact surface 116a, and there is a possibility that leakage occurs. However, in the second seal portion 102, the lip 102a is deformed so as to rise following the second seal portion contact surface 115a due to the restoring force of the lip 102a. As long as there is a small amount, even after the first seal portion 101 is separated from the first seal portion contact surface 116a, the tip of the lip 102a is not separated from the second seal portion contact surface 115a, and the sealing is continued. That is, an inner leak state occurs in which only the first seal portion 101 leaks.
- the low pressure space 84 (and the processing space 83) remains blocked from the outside of the processing vessel 30 by the second seal portion 102.
- the processing space 83 communicates with each other through a gap formed in the first seal portion 101. Therefore, the atmosphere of the processing space 83 on the high pressure side flows into the low pressure space 84 through the gap. Therefore, the internal pressure of the processing space 83 decreases and the internal pressure of the low pressure space 84 increases. However, even in such a case, the internal pressure P of the low pressure space 84 is adjusted to a sufficiently low pressure in advance.
- the lid 81 is moved to the processing container.
- the separation from the main body 80 can be prevented. That is, it is possible to prevent a leak from occurring in the second seal portion 102. Therefore, even when a leak occurs in the first seal portion 101, the corrosive atmosphere in the processing space 83 can be prevented from leaking to the outside of the processing container 30 by the second seal portion 102, which is safe.
- a simple structure constituted by a low-pressure space 84, a low-pressure space pressure adjusting path 118, a low-pressure space pressure adjusting mechanism 120, etc. without using a complicated structure such as a conventionally used lock mechanism.
- difficult adjustments that have been performed with a conventionally used lock mechanism are unnecessary, and maintenance is easy.
- the number of parts is reduced, and the device cost can be reduced.
- the processing fluid supplied to the processing apparatus includes other processing gases in addition to ozone gas and water vapor.
- the processing apparatus is not limited to the processing units 23a to 23f for performing the resist water-solubilizing treatment, and may be a device that performs a process other than the resist water-solubilizing treatment on the object to be processed. good.
- the object to be processed is not limited to a semiconductor wafer, but may be another substrate, for example, glass for an LCD substrate, a CD substrate, a printed substrate, a ceramic substrate, or the like.
- the first seal portion 101 and the second seal portion 102 are both attached to the processing container body 80 side, and the first seal portion contact surface 116a, the second seal portion
- the contact surface 115a is not limited to the force, or form, that is on the lid 81 side.
- either one or both of the first seal part and the second seal part are attached to the lid 81 side, and either or both of the first seal part contact surface and the second seal part contact surface are Both may be provided on the processing container body 80 side.
- the types, materials, shapes, etc. of the first seal part and the second seal part are not limited to the above embodiments.
- an O-ring or the like may be used as the first seal portion or the second paper portion.
- the shapes of the processing space 83 and the low pressure space 84 are not limited to the above embodiments.
- the force that the low-pressure space 84 is formed by the lower groove portion 84a provided in the processing vessel body 80 and the upper groove portion 84b provided in the lid 81 is, of course, the lower groove portion 84a. Even in a configuration in which only one of the upper and lower grooves 84b is formed, a low pressure space can be formed.
- the low pressure space pressure adjusting path 118 may be connected to the processing container main body 80 side (lower groove portion 84a) connected to the lid 81 side.
- the low-pressure air in the normal seal state before the inner leak state is reached.
- the internal pressure P between 84 is the internal pressure P (low pressure
- the internal pressure P of the low pressure space 84 is not in an inner leak state.
- the internal pressure P (P) is the pressure (P) a pressure (P) a pressure (P) a pressure (P) a pressure (P) a pressure (P) a pressure (P) a pressure (P) a pressure (P) a pressure (P) a pressure (P) a pressure (P) a pressure (P) a pressure (P) a pressure (P)
- the pressure is less than or equal to the pressure of the above embodiment.
- the internal pressure P (P) may be negative with respect to the external pressure P.
- the internal pressure P (P) may be negative with respect to the external pressure P.
- the internal pressure P of the low-pressure space 84 in the inside leak state is equal to or lower than the external pressure P.
- the internal pressure p may be set to a negative pressure with respect to the external pressure p.
- the lid 81 can be prevented from separating from the processing container main body 80 when the inside leak state occurs, and a leak occurs in the second seal portion 102. Can be prevented. Further, it is possible to prevent the lid 81 from being opened with a simple structure without using a complicated structure such as a conventionally used lock mechanism.
- the present invention can be applied to an apparatus, a method, and the like for processing an object to be processed such as a semiconductor wafer or LCD substrate glass using a gas.
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- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Epidemiology (AREA)
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Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112007002340T DE112007002340T5 (de) | 2006-11-24 | 2007-11-21 | Bearbeitungssystem, Bearbeitungsverfahren und Aufzeichnungsmedium |
US12/439,249 US8298344B2 (en) | 2006-11-24 | 2007-11-21 | Method of processing workpieces using a vessel with a low pressure space surrounding a processing space for the purpose of preventing the leakage of atmosphere into the processing space |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006317253A JP4907310B2 (ja) | 2006-11-24 | 2006-11-24 | 処理装置、処理方法及び記録媒体 |
JP2006-317253 | 2006-11-24 |
Publications (1)
Publication Number | Publication Date |
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WO2008062826A1 true WO2008062826A1 (fr) | 2008-05-29 |
Family
ID=39429755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2007/072540 WO2008062826A1 (fr) | 2006-11-24 | 2007-11-21 | Appareil de traitement, procédé de traitement et support d'enregistrement |
Country Status (6)
Country | Link |
---|---|
US (1) | US8298344B2 (ja) |
JP (1) | JP4907310B2 (ja) |
KR (1) | KR100979978B1 (ja) |
DE (1) | DE112007002340T5 (ja) |
TW (1) | TW200839862A (ja) |
WO (1) | WO2008062826A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019111429A1 (ja) * | 2017-12-06 | 2019-06-13 | CSG Investments株式会社 | 密閉容器用蓋 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4985183B2 (ja) * | 2007-07-26 | 2012-07-25 | 東京エレクトロン株式会社 | 基板処理装置及び基板処理方法並びに記憶媒体 |
US8033771B1 (en) * | 2008-12-11 | 2011-10-11 | Novellus Systems, Inc. | Minimum contact area wafer clamping with gas flow for rapid wafer cooling |
JP5474840B2 (ja) * | 2011-01-25 | 2014-04-16 | 東京エレクトロン株式会社 | 液処理装置および液処理方法 |
JP5655735B2 (ja) * | 2011-07-26 | 2015-01-21 | 東京エレクトロン株式会社 | 処理装置、処理方法及び記憶媒体 |
JP6305736B2 (ja) * | 2013-11-20 | 2018-04-04 | 測位衛星技術株式会社 | 情報管理システム、データバンク装置、データの管理方法、データベースの管理方法、および、プログラム |
JP5994821B2 (ja) * | 2014-06-13 | 2016-09-21 | ウシオ電機株式会社 | デスミア処理装置およびデスミア処理方法 |
US10460955B2 (en) * | 2014-08-25 | 2019-10-29 | The United States Of America As Represented By The Secretary Of The Army | Methodology for annealing group III-nitride semiconductor device structures using novel weighted cover systems |
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JPH11204613A (ja) * | 1998-01-12 | 1999-07-30 | Dainippon Screen Mfg Co Ltd | 基板処理装置 |
JPH11219925A (ja) * | 1998-01-29 | 1999-08-10 | Shin Etsu Handotai Co Ltd | 多孔質焼結体を用いた耐熱性半導体製造治具の洗浄方法及びその乾燥方法 |
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KR20050019129A (ko) * | 2002-06-13 | 2005-02-28 | 비오씨 에드워즈 인코포레이티드 | 기판 처리 장치 및 기판 처리 방법 |
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JP4093462B2 (ja) | 2002-10-09 | 2008-06-04 | 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 |
-
2006
- 2006-11-24 JP JP2006317253A patent/JP4907310B2/ja active Active
-
2007
- 2007-11-21 DE DE112007002340T patent/DE112007002340T5/de not_active Withdrawn
- 2007-11-21 KR KR1020087016891A patent/KR100979978B1/ko active IP Right Grant
- 2007-11-21 US US12/439,249 patent/US8298344B2/en active Active
- 2007-11-21 WO PCT/JP2007/072540 patent/WO2008062826A1/ja active Application Filing
- 2007-11-23 TW TW096144619A patent/TW200839862A/zh unknown
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JPH04196532A (ja) * | 1990-11-28 | 1992-07-16 | Tokyo Electron Ltd | 駆動装置 |
JPH0910709A (ja) * | 1995-06-30 | 1997-01-14 | Dainippon Screen Mfg Co Ltd | 基板処理装置 |
JPH11204613A (ja) * | 1998-01-12 | 1999-07-30 | Dainippon Screen Mfg Co Ltd | 基板処理装置 |
JPH11219925A (ja) * | 1998-01-29 | 1999-08-10 | Shin Etsu Handotai Co Ltd | 多孔質焼結体を用いた耐熱性半導体製造治具の洗浄方法及びその乾燥方法 |
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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 |
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Publication number | Priority date | Publication date | Assignee | Title |
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WO2019111429A1 (ja) * | 2017-12-06 | 2019-06-13 | CSG Investments株式会社 | 密閉容器用蓋 |
JP2019100490A (ja) * | 2017-12-06 | 2019-06-24 | CSG Investments株式会社 | 密閉容器用蓋 |
Also Published As
Publication number | Publication date |
---|---|
DE112007002340T5 (de) | 2009-07-30 |
US8298344B2 (en) | 2012-10-30 |
KR100979978B1 (ko) | 2010-09-03 |
US20090260656A1 (en) | 2009-10-22 |
TW200839862A (en) | 2008-10-01 |
KR20080097402A (ko) | 2008-11-05 |
JP2008130978A (ja) | 2008-06-05 |
TWI362070B (ja) | 2012-04-11 |
JP4907310B2 (ja) | 2012-03-28 |
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