WO2018142541A1 - 単結晶引上装置のクリーニング装置 - Google Patents
単結晶引上装置のクリーニング装置 Download PDFInfo
- Publication number
- WO2018142541A1 WO2018142541A1 PCT/JP2017/003797 JP2017003797W WO2018142541A1 WO 2018142541 A1 WO2018142541 A1 WO 2018142541A1 JP 2017003797 W JP2017003797 W JP 2017003797W WO 2018142541 A1 WO2018142541 A1 WO 2018142541A1
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- WIPO (PCT)
- Prior art keywords
- cleaning
- single crystal
- pull chamber
- main cylinder
- crystal pulling
- Prior art date
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- 238000004140 cleaning Methods 0.000 title claims abstract description 154
- 239000013078 crystal Substances 0.000 claims description 96
- 238000007789 sealing Methods 0.000 claims description 91
- 238000007664 blowing Methods 0.000 claims description 45
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 102220470231 Charged multivesicular body protein 5_D11A_mutation Human genes 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
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- 238000004804 winding Methods 0.000 description 6
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- 239000010937 tungsten Substances 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
- B08B5/023—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
- C30B15/32—Seed holders, e.g. chucks
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/02—Elements
- C30B29/06—Silicon
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B35/00—Apparatus not otherwise provided for, specially adapted for the growth, production or after-treatment of single crystals or of a homogeneous polycrystalline material with defined structure
Definitions
- the present invention relates to a cleaning apparatus for a single crystal pulling apparatus, and in particular, single crystal pulling for pulling a semiconductor single crystal such as a silicon single crystal from a semiconductor melt in a crucible by a wire using a CZ method (Czochralski method).
- the present invention relates to a technique suitable for use in cleaning the inside of an apparatus.
- a single crystal pulling apparatus using a CZ method is known as one of means for growing a semiconductor single crystal such as silicon (Si) or gallium arsenide (GaAs).
- a semiconductor melt is stored in a quartz crucible disposed in a chamber that is a sealed container, and the semiconductor melt is disposed around the quartz crucible. To control the heating to a predetermined temperature.
- the semiconductor single crystal is pulled up from the semiconductor melt in the quartz crucible disposed below the pull chamber with a wire such as (tungsten) suspended in the pull chamber at the top of the chamber.
- a wire such as (tungsten) suspended in the pull chamber at the top of the chamber.
- a wire winding device (not shown) for pulling up the semiconductor single crystal is provided in a pull head provided rotatably on the pull chamber. That is, the wire is suspended from the pull head into the pull chamber via a center piece portion that is a hole communicating with the pull head and the pull chamber.
- Patent Document 1 has a problem that the inside of the chamber is recontaminated by dust generated during wire cleaning, which may cause dislocation. Furthermore, since there is a wire cleaning device in the chamber that performs the pulling up, silicon vapor or the like adheres to the wire cleaning device itself in a process where the amount of silicon evaporation is large, and this wire cleaning device itself causes dislocation. There was a possibility. In particular, since the diameter of the quartz crucible has been increasing in recent years, the amount of deposits such as Si vapor has increased.
- dust may be generated during the filling of the silicon raw material into the quartz crucible, which may adhere to the inside of the wire or the pull chamber and cause dislocation. There was a request to perform wire cleaning during filling.
- the present invention has been made in view of the above circumstances, and in order to remove dust in the single crystal pulling apparatus, cleaning of the inner surface of the pull chamber or cleaning of the wire suspended in the pull chamber is easily performed.
- An object of the present invention is to provide a cleaning device for a single crystal pulling apparatus that can reduce the occurrence of dislocation.
- the cleaning device for a single crystal pulling apparatus includes a single crystal pulling apparatus for pulling a semiconductor single crystal from a semiconductor melt in a crucible installed below the pull chamber by a wire suspended in the pull chamber of the sealed container.
- the said subject cylinder solved the said subject by providing the continuous extending
- the wire cleaning mechanism of the present invention can include an inner air blowing mechanism capable of blowing air inward in the radial direction from an inner outlet provided inside the main cylinder portion.
- the inner air blowing mechanism of the present invention may be provided so as to be flush with the inner surface of the main tube portion.
- the main tube portion of the present invention may have an external communication intake portion that communicates from the outside of the main tube portion above the inner air blowing mechanism.
- a gas suction pipe for sucking and discharging the inside of the main cylinder part may be provided at the lower end position of the main cylinder part of the present invention.
- the outer peripheral surface of the upper end position of the main cylinder part of the present invention is sealed so that the main cylinder part is in contact with the inner surface of the pull chamber while the main cylinder part is inserted into the pull chamber when air is blown out from the inner outlet.
- a member can be provided.
- the sealing member of the present invention may include a variable diameter mechanism that reduces the diameter when the main cylinder portion moves in the axial direction and expands the diameter when sealed.
- the diameter dimension varying mechanism of the present invention includes a flexible bag provided between the sealing member and the outer peripheral surface of the main cylinder portion, and the flexible bag is inflated by injecting air. Can be possible.
- the flexible bag according to the present invention may be a rubber tube provided in an annular shape along the outer peripheral surface of the main cylinder portion. The sealing member of the present invention can be cleaned by sliding the inner surface of the pull chamber at the outer peripheral position thereof.
- the continuous extension mechanism of the present invention is a cylindrical support portion protruding in a radial direction at the lower end position of each joint portion in the main cylindrical portion, A support base for supporting the tube support portion when adding the tube portion; Can be provided.
- the method for cleaning a single crystal pulling apparatus according to the present invention includes a wire for a single crystal pulling apparatus that pulls a semiconductor single crystal from a semiconductor melt in a crucible installed below the pull chamber by a wire suspended in the pull chamber of the sealed container.
- a cleaning method for a single crystal pulling apparatus that performs cleaning, In the pull chamber, the main tube portion is inserted in the axial direction of a plurality of tube portions of the cleaning device so as to be hermetically connected, and the wire is inserted into the upper portion of the main tube portion.
- the continuous stretching mechanism includes a tube support portion protruding in a radial direction at a lower end position of each joint portion in the main tube portion, and when the joint portion is added.
- a support base for supporting the tube support portion The tube support portion can be supported by the support base, and the main tube portion can be added to the pull chamber and disassembled.
- the main cylinder portion is inserted into the pull chamber, and a sealing member provided on the outer peripheral surface of the upper end position of the main cylinder portion is in contact with the inner surface of the pull chamber for sealing. In this state, air can be blown out from the inner outlet.
- an external communication intake that sucks the inside of the main cylinder from the lower end of the main cylinder and communicates from the outside of the main cylinder above the inner air outlet. Air can be blown out from the section.
- the outer peripheral position of the sealing member slides to clean the inner surface of the pull chamber in a state where the sealing member is in contact with the inner surface of the pull chamber and is sealed. it can.
- the cleaning device for a single crystal pulling apparatus includes a single crystal pulling apparatus for pulling a semiconductor single crystal from a semiconductor melt in a crucible installed below the pull chamber by a wire suspended in the pull chamber of the sealed container.
- a device for cleaning A main cylinder part that can be inserted into the pull chamber, and a wire cleaning mechanism for cleaning the wire inserted into the main cylinder part at the upper part of the main cylinder part,
- a wire cleaning mechanism is provided up to the vicinity of the top of the pull chamber when performing wire cleaning at a position inside the pull chamber.
- the upper part of the main cylinder part to which is arranged can reach and the lower end of the sealed main cylinder part can be positioned outside the pull chamber.
- the dust generated by the cleaning is sucked inside the sealed main cylinder part, and the dust is prevented from coming out between the main cylinder part and the pull chamber and removed so as not to adhere to the inner surface of the pull chamber. Is possible.
- the wire cleaning mechanism of the present invention includes an inner air blowing mechanism capable of blowing air inward in the radial direction from an inner blow-out port provided inside the main tube portion, thereby pulling the main tube portion into a pull chamber. Wire cleaning that blows and removes dust from the wire surface by allowing the wire to hang inside the main tube and blowing air from the inner air outlet to the radially inner wire through the inner air outlet mechanism. The dust blown off can be prevented from reattaching to the inner surface of the pull chamber located outside the main cylinder portion.
- the inner air blowing mechanism includes a plurality of the inner blowing ports. That is, in this cleaning device, for example, air is blown toward the wire from a plurality of inner air outlets provided in the circumferential direction and the axial direction, so that the wire surface can be cleaned in a wide range in the circumferential direction and the axial direction. become.
- the wire or the wire tip is provided when the wire is advanced or retracted inside the main tube portion. It is possible to prevent the seed chuck or the like from coming into contact with the inner side of the main cylindrical portion and to prevent the contamination that has an influence on the dislocation from occurring, and to perform the cleaning efficiently.
- the main cylinder part of the present invention has an external communication intake part that communicates from the outside of the main cylinder part above the inner air blowing mechanism, so that the external communication intake part faces the inside of the main cylinder part.
- the air can be blown out.
- the air jetted from the external communication intake part toward the inside of the main cylinder part becomes a so-called air curtain, and the dust generated by cleaning near the inner air blowing mechanism is prevented from moving to a position above this.
- dust can be prevented from reattaching to the pull chamber.
- a gas suction pipe that sucks and discharges the inside of the main cylinder part is provided, so that the main cylinder sealed with dust generated by cleaning near the inner air blowing mechanism To the outside of the main cylinder part and to prevent dust from coming out between the main cylinder part and between the main cylinder part and the pull chamber, so that it does not adhere to the inner surface of the pull chamber. It becomes possible.
- the outer peripheral surface of the upper end position of the main cylinder part of the present invention is sealed so that the main cylinder part is in contact with the inner surface of the pull chamber while the main cylinder part is inserted into the pull chamber when air is blown out from the inner outlet.
- cleaning can be performed so that the generated dust does not enter between the pull chamber below the position where the sealing member abuts and the main tube portion. Thereby, it can prevent dust from entering the outer peripheral position of the main cylinder part.
- the sealing member is provided in an annular shape along the inner peripheral surface of the pull chamber. That is, in this cleaning device, since the sealing member is provided in an annular shape along the inner peripheral surface of the pull chamber, the sealing member abuts on the entire peripheral direction of the inner surface of the pull chamber, and the entire inner peripheral surface of the pull chamber is easily sealed. It becomes possible to do.
- the sealing member of the present invention is provided with a variable diameter mechanism that reduces the diameter when the main cylinder portion moves in the axial direction and expands the diameter when the main cylinder portion is sealed, so that the sealing member is deformed in the radial direction of the main cylinder portion.
- the sealing member can be freely brought into contact with or separated from the inner peripheral surface of the pull chamber.
- the sealing member can be brought into contact with the inner surface of the pull chamber, the upper end side of the pull chamber can be sealed, and cleaning can be performed so that dust does not diffuse.
- the sealing member does not get in the way and the operation can be performed smoothly.
- the diameter dimension varying mechanism of the present invention includes a flexible bag provided between the sealing member and the outer peripheral surface of the main cylinder portion, and the flexible bag is inflated by injecting air. It is possible to easily deform the sealing member only by simple means of inflating the flexible bag body, such as when the main cylinder part is inserted into the pull chamber and the upper end of the main cylinder part is raised and lowered. Alternatively, the sealing member can be moved and the sealing member can be prevented from contacting the pull chamber except when the sealing member is brought into contact with the inner surface of the pull chamber. In a state where the main tube portion is inserted into the pull chamber, the sealing member disposed outside the flexible bag body is moved or deformed radially outward by inflating the flexible bag body by injecting air. Thus, the sealing member can be brought into contact with the inner peripheral surface of the pull chamber. Accordingly, the sealing member can be easily deformed or moved only by simple means of inflating the flexible bag.
- the flexible bag according to the present invention is a rubber tube provided in an annular shape along the outer peripheral surface of the main cylinder, so that the flexible bag can be easily inflated over the entire outer periphery of the main cylinder.
- the sealing member can be deformed or moved over the entire outer periphery of the main tube portion.
- the sealing member of the present invention can be cleaned by sliding the inner surface of the pull chamber at its outer peripheral position, the upper end side of the pull chamber is sealed by the sealing member before wire cleaning, and the sealing member is pulled after the wire cleaning.
- the pull chamber By lowering the upper end of the main cylinder part while being in contact with the inner surface of the pull chamber, the pull chamber can be moved while wiping the inner surface.
- the sealing member can slide on the inner surface of the pull chamber to scrape off the deposits. Thereby, the inner surface of the pull chamber can be cleaned together after the wire cleaning.
- the continuous extension mechanism of the present invention is a cylindrical support portion protruding in a radial direction at the lower end position of each joint portion in the main cylindrical portion, A support base for supporting the tube support portion when adding the tube portion;
- the wire cleaning mechanism includes a vibrating member on the inner surface of the main cylinder portion that contacts and vibrates the wire arranged in the main cylinder portion. It is preferable. In other words, in this cleaning device, by making the vibrating member come into contact with the wire arranged in the main cylinder portion, it is possible to further easily remove dust adhered by vibrating the wire.
- the method for cleaning a single crystal pulling apparatus includes a wire for a single crystal pulling apparatus that pulls a semiconductor single crystal from a semiconductor melt in a crucible installed below the pull chamber by a wire suspended in the pull chamber of the sealed container.
- a cleaning method for a single crystal pulling apparatus that performs cleaning, In the pull chamber, the main tube portion is inserted in the axial direction of a plurality of tube portions of the cleaning device so as to be hermetically connected, and the wire is inserted into the upper portion of the main tube portion.
- the air is blown radially inward from the inner blowing port to perform cleaning to the vicinity of the top portion of the pull chamber of the main cylinder portion where the inner air blowing mechanism is arranged.
- the lower end of the sealed main cylinder part is positioned outside the pull chamber, and the dust generated by the cleaning is sucked into the sealed main cylinder part, and dust is generated between the main cylinder part and the pull chamber. It is possible to remove the liquid so as not to adhere to the inner surface of the pull chamber. As a result, it is possible to perform cleaning capable of being pulled up while preventing dislocation due to the reattached dust.
- the continuous stretching mechanism includes a tube support portion protruding in a radial direction at a lower end position of each joint portion in the main tube portion, and when the joint portion is added.
- a support base for supporting the tube support portion By attaching and disassembling the main tube portion to the pull chamber by supporting the tube support portion with the support base, the tube portion can be efficiently attached and detached at the time of insertion / extraction of the main tube portion to the pull chamber.
- the working time can be shortened and the occurrence of contact of the main cylinder portion with the inner surface of the pull chamber can be easily prevented.
- the main cylinder portion is inserted into the pull chamber, and a sealing member provided on the outer peripheral surface of the upper end position of the main cylinder portion is in contact with the inner surface of the pull chamber for sealing.
- the air is blown out from the inner air outlet, so that cleaning is performed so that the generated dust does not enter between the pull chamber and the main cylinder portion below the position where the sealing member abuts. be able to. Thereby, it can prevent dust from entering the outer peripheral position of the main cylinder part.
- an external communication intake that sucks the inside of the main cylinder from the lower end of the main cylinder and communicates from the outside of the main cylinder above the inner air outlet.
- the air blown out from the external communication intake part to the inside of the main cylinder part becomes an air curtain, and the dust generated by the cleaning near the inner air blowing mechanism is positioned above this.
- the dust generated by cleaning near the inner air blowing mechanism is sucked inside the sealed main cylinder part and collected from the lower end to the outside. It is possible to prevent dust from being generated between the pull chambers and to remove the dust from adhering to the inner surface of the pull chamber.
- the outer peripheral position of the sealing member slides to clean the inner surface of the pull chamber while the sealing member is in contact with the inner surface of the pull chamber and is sealed.
- the upper end side of the pull chamber is sealed with a sealing member before the wire cleaning, and after the wire cleaning, the upper end of the main cylinder portion is lowered while the sealing member is in contact with the inner surface of the pull chamber, so that the inner surface of the pull chamber is moved while being wiped. Can do.
- the sealing member can slide on the inner surface of the pull chamber to scrape off the deposits. Thereby, the inner surface of the pull chamber can be cleaned together after the wire cleaning.
- the wire that generates dust is cleaned by the wire cleaning mechanism.
- the pull chamber inner surface exposed to the silicon melt side when pulled up can be isolated from the dust generation source for cleaning. Therefore, it is possible to perform the cleaning of the wire by preventing the reattachment of the dust, and the effect that the influence on the pulling growth by the dust (such as the dislocation of crystals) can be extremely suppressed. Become. Furthermore, the inner surface of the pull chamber can be cleaned by the inner surface cleaning mechanism. Therefore, it is possible to easily clean the inner surface of the pull chamber without manual operation while preventing the reattachment of dust, and to suppress the influence on the pull-up growth (such as crystal dislocation) due to dust. It becomes possible to play.
- FIG. 1 is a front sectional view showing a single crystal pulling apparatus to be cleaned in a first embodiment of a cleaning apparatus for a single crystal pulling apparatus according to the present invention.
- the first embodiment of the cleaning device of the single crystal pulling apparatus according to the present invention it is a front cross-sectional view showing a state where the main tube portion is joined.
- FIG. 3 is an exploded front sectional view showing the upper side of the main cylinder portion in the first embodiment of the cleaning apparatus for the single crystal pulling apparatus according to the present invention.
- FIG. 4 is a cross-sectional view taken along the line IV-IV showing the joint section in FIG. 3.
- FIG. 5 is a cross-sectional view taken along the arrow VV showing the joint section in FIG. 3.
- FIG. 6 is a cross-sectional view taken along the line VI-VI showing the joint section in FIG. 3.
- FIG. 4 is a cross-sectional view taken along arrow VII-VII showing a joint portion in FIG. 3.
- FIG. It is a top view which shows the state which accommodated the main cylinder part in 1st Embodiment of the cleaning apparatus of the single crystal pulling apparatus which concerns on this invention. It is a front view showing the state where the main cylinder part was stored in the 1st embodiment of the cleaning device of the single crystal pulling device concerning the present invention.
- Rubber tube (flexible bag) 25 Pressurized piping D ... Dolly (support) D0 ... Bottom plate D2 ; Position regulating plate D21 ... Notch D3 ; Position setting part D4 ... Wheel D10 ... Support part D11 ... Plate body D12 ... Arm part D13 ... Groove D11A ... Support lifting part D11B ... Guide
- FIG. 1 is a front sectional view showing a single crystal pulling apparatus that performs cleaning with a cleaning apparatus according to this embodiment.
- reference numeral 1 denotes a single crystal pulling apparatus.
- a single crystal pulling apparatus 1 performs pulling growth by the Czochralski (CZ) method.
- a chamber 2 that is a sealed container and a pull chamber above the chamber 2 1a, a carbon susceptor 3s provided inside the chamber 2, a quartz crucible 3 disposed on the susceptor 3s, a cylindrical carbon heater 4 disposed around the quartz crucible 3, and a carbon heater 4
- a cylindrical heat insulating cylinder 5 disposed around, a carbon plate 6 provided as a support plate on the inner surface of the heat insulating cylinder 5, a flow pipe 7 disposed above the quartz crucible 3, and a flow pipe 7 are supported. It has an annular upper ring 8 and a shaft 9 that supports the susceptor 3s and can move up and down.
- the single crystal pulling device 1 also has a wire W such as W (tungsten) suspended in the pull chamber 1a, and a wire W winding device 1c is provided in a pull head 1b rotatably provided on the pull chamber 1a. Is provided.
- the wire W is suspended from the pull head 1b into the pull chamber 1a via a center piece portion 1d which is a hole communicating the pull head 1b and the pull chamber 1a.
- a carbon seed holder SH for holding a seed crystal and a molybdenum seed chuck SC are attached. Further, a pull head suction part 1g is connected to the pull head 1b via a pull head suction pipe 1f, and the inside of the pull head 1b can be decompressed.
- the chamber 2 is opened, and a semiconductor material such as silicon that becomes the semiconductor melt L is filled in the quartz crucible 3. Thereafter, the chamber 2 is sealed, and the inside of the chamber 2 is set to a predetermined gas atmosphere, and then heated to a predetermined temperature by the heater 4 to melt the semiconductor material, and this semiconductor melt L is stored in the quartz crucible 3, The semiconductor melt L is controlled to be heated to a predetermined temperature by the heater 4. In this state, the semiconductor single crystal C is pulled up from the semiconductor melt L in the crucible 3 disposed below the pull chamber 1a by the wire W suspended in the pull chamber 1a above the chamber 2. The pulled semiconductor single crystal C is taken out and sent to a wafer manufacturing process or the like. After the pulling up, the pull chamber 1a is removed from the chamber 2 and cleaned by the cleaning device in this embodiment.
- a semiconductor material such as silicon that becomes the semiconductor melt L is filled in the quartz crucible 3.
- FIG. 2 is a front sectional view showing a state in which the main cylinder portion of the cleaning device according to the present embodiment is inserted into the pull chamber
- FIG. 3 shows an upper side of the main cylinder portion of the cleaning device according to the present embodiment
- FIG. 4 to FIG. 7 are cross-sectional views showing the main tube portion in FIG. 3
- FIG. 8 is an exploded front view showing the lower side of the main tube portion of the cleaning device in this embodiment.
- symbol 10 is a cleaning apparatus in the figure.
- the cleaning device 10 in the present embodiment is provided inside the main cylinder portion 11, and a main cylinder portion 11 that can be inserted into the pull chamber 1 a and through which the wire W can be inserted.
- An inner air blowing mechanism (wire cleaning mechanism) 13 capable of blowing air radially inward from the plurality of inner nozzles (inner outlets) 13a and 13b is provided.
- the main cylinder portion 11 is made of a lightweight resin or the like, for example, made of vinyl chloride, and can be transferred / removed in the axial direction. As shown in FIGS. It has a four-divided structure including a second joint portion 11B, a third joint portion 11C, and a fourth joint portion 11D.
- the number of divisions of the main cylindrical portion 11 includes the diameter and length of the semiconductor single crystal C pulled up by the single crystal pulling apparatus 1, the length of the pull chamber 1a, and the connecting cylindrical portions 11A to 11A that are easy to handle. It can be set according to the length dimension of 11D.
- each of the joint portions 11A to 11D is formed into a cylindrical shape having the same diameter, and can be added in a state where the respective end portions are brought into contact with each other and the inner sealed state is maintained. Yes.
- Each of the connecting tube portions 11A to 11D has a cylindrical shape with a substantially the same diameter in the entire axial direction.
- a ring-shaped sealing portion 11b that extends downward in the axial direction and has an enlarged diameter is provided around the lower end 11Ab of the first joint portion 11A.
- the lower end 11Bb of the second joint part 11B and the lower end 11Cb of the third joint part 11C are also provided with a ring-shaped sealing part 11b that extends downward in the axial direction and is expanded in diameter. ing.
- the sealing portion 11b constitutes a continuous stretching mechanism, and as shown in FIGS. 2 to 8, when the joint portion 11B is continued to the joint portion 11A, the lower end 11Ab of the joint portion 11A.
- the inside of the joint part 11A and the joint part 11B can be sealed so as to cover the periphery of the upper end 11Ba of the joint part 11B to be abutted.
- the sealing portion 11b covers the periphery of the upper end 11Ca of the joint portion 11C that is abutted against the lower end 11Bb of the joint portion 11B when the joint portion 11C is continued to the joint portion 11B.
- the inner side of the joint part 11B and the joint part 11C can be sealed.
- the sealing portion 11b covers the periphery of the upper end 11Da of the joint portion 11D that is abutted against the lower end 11Cb of the joint portion 11C when the joint portion 11D is continued to the joint portion 11C.
- the inner side of the joint portion 11C and the joint portion 11D can be sealed.
- the locking part 12 constituting the continuous extending mechanism is at a position corresponding to when the joint part 11B is added to the joint part 11A. Is provided.
- FIG. 9 is a front sectional view showing an unlocking state of the locking portion of the cleaning device in the present embodiment
- FIG. 10 is a front sectional view showing a locking state of the locking portion of the cleaning device in the present embodiment. It is.
- the locking portion 12 is capable of locking and releasing the joint portion 11A and the joint portion 11B across the sealing portion 11b, and is a so-called draw latch. Has been.
- the locking portions 12 are arranged at two positions in the radial direction both ends of the joint tube portion 11A and the joint tube portion 11B, that is, opposite positions on the diameter in plan view. ing.
- the draw latch (locking portion) 12 includes a hook 12a provided on the joint portion 11A side, a base 12b, a lever 12c, and a catch 12d provided on the joint portion 11B side. Have.
- the hook 12a is provided at a position above the sealing portion 11b at the lower end 11Ab of the joint portion 11A.
- the base 12b is provided at a lower position that does not hinder the sealing by the sealing portion 11b when the main cylinder portion 11 is added at the position of the upper end 11Ba of the connecting portion 11B.
- the base 12b and the lever 12c are connected to each other so as to be rotatable about the shaft, and the catch 12d and the lever 12c are connected to be able to turn on the shaft.
- the catch 12d can be elastically deformed necessary for locking.
- the locking portion 12 has a joint portion 11C added to the joint portion 11B at the upper end 11Ca of the joint portion 11C and the lower end 11Bb of the joint portion 11B. It is provided at the position corresponding to the case.
- the locking portion 12 has a joint portion 11DC added to the joint portion 11C at the upper end 11Da of the joint portion 11D and the lower end 11Cb of the joint portion 11C. It is provided at the position corresponding to the case.
- a handle (cylinder support portion) 14 that protrudes in the radial direction is provided on the lower end 11Ab of the first joint portion 11A at a position above the sealing portion 11b.
- the handle (cylinder support portion) 14 is positioned so as to be at both ends in the radial direction of the joint tube portion 11A and the joint tube portion 11B, that is, at a position opposite in diameter in plan view. Placed in place. Further, the handle (cylinder support part) 14 is arranged so as to be shifted with respect to the locking part 12 in the circumferential direction of the joint pipe part 11A. In the present embodiment, the angle formed between the handle (tube support portion) 14 and the locking portion 12 from the axial center of the joint tube portion 11A is set to be about 45 °.
- the dimension in which the handle 14 projects in the radial direction from the outer periphery of the first joint portion 11A is set such that the interval between the tips of the handles 14 facing each other along the diameter is smaller than the inner diameter of the pull chamber 1a.
- the tip of the handle 14 is set so as not to contact the inner surface of the pull chamber 1a.
- the handle (cylinder support part) 14 is provided with an inclined surface 14a at the tip of the handle 14 from the upper side to the lower side so as to be separated from the axial center of the joint part 11A. Because of the inclined surface 14a, the distance between the tips of the opposite ends of the handle 14 along the diameter is smaller on the upper side. Therefore, when the first joint portion 11A is inserted into the pull chamber 1a, the tip of the handle 14 contacts the inner surface of the pull chamber 1a. It is possible to easily prevent contact.
- the handle (cylinder support part) 14 is provided at the lower end 11Bb of the joint part 11B so as to protrude in the radial direction above the sealing part 11b.
- the handle (cylinder support portion) 14 is provided at the lower end 11Cb of the joint tube portion 11C so as to protrude in the radial direction at a position above the sealing portion 11b.
- the connecting tube portion 11B and the connecting tube portion 11C at the intermediate positions have substantially the same shape.
- a wire cleaning mechanism 13 is provided in the first joint portion 11 ⁇ / b> A that is the upper position of the main tube portion 11.
- the wire cleaning mechanism (inner air blowing mechanism) 13 is arranged at equal intervals in the circumferential direction at the same height on the upper inner peripheral surface of the first joint portion 11A.
- Two inner nozzles 13a and four inner nozzles 13b arranged at equal intervals in the circumferential direction, similarly shifted by a quarter of a circle below the inner nozzles 13a, and having two inner nozzles in the axial direction 13a and 13b are provided.
- the inner air blowing mechanism 13 includes a blowing air supply pipe 13c whose tip is connected to each inner nozzle 13a.
- the blowing air supply pipe 13c has a particle filter 13e and mist oil at a middle portion via a valve 13d.
- a filter 13f is interposed, and a coupler 13g connected to a cleaning air supply source (not shown) is provided at the base end.
- the inner nozzles 13a and 13b are all provided so as to be flush with the inner surface of the first joint portion 11A. Thereby, since there is no part which protrudes inside the 1st joint part 11A, when raising the main cylinder part 11 or raising or lowering the wire W, the seed chuck SC or the like contacts the inner surface of the main cylinder part 11. Can be prevented.
- the inner nozzles 13a and 13b and the blowing air supply pipe 13c are formed so as to be smaller than the radial dimension of the flange portion 11Aa or the sealing member 18, so that they contact the inner surface of the pull chamber 1a. It is prevented.
- the first joint portion 11A has a sealing member disposed on the outer peripheral surface of the upper end and capable of contacting the inner surface of the pull chamber 1a with the main tube portion 11 being inserted into the pull chamber 1a. 18 is provided.
- FIG. 11 is a cross-sectional view (a) showing the reduced diameter state of the sealing member of the cleaning device in the present embodiment, and a cross-sectional view (b) showing the expanded diameter state.
- the sealing member 18 is formed of polyester or the like, and is provided in a state of being folded back so as to be annular along the inner peripheral surface of the pull chamber 1a.
- the sealing member 18 is formed of a cloth body that is knitted into a cylindrical shape by, for example, a circular knitting machine and has elasticity, and in this cloth body, as shown in FIG. , 18b are folded inward so as to face each other, and are formed into a torus shape (annular ring) by an inner joint portion 18c joined together with elasticity.
- the sealing member 18 can respond to the pull chambers 1a having different diameters. For example, when the sealing member 18 is applied to the pull chamber 1a cleaning with a small diameter as in the case of the single crystal pulling apparatus 1 that pulls up the semiconductor single crystal C having a diameter of 200 mm, as shown in FIG.
- the joint 18c is used in a reduced diameter state in which both end portions 18a and 18b are connected.
- this sealing member 18 is shown in FIG.
- the joining of the both end portions 18a and 18b by the inner joint portion 18c is released to increase the expansion / contraction ratio, and it is used in an expanded state in which the width dimension is enlarged.
- the entire width of the sealing member 18 can be used as a single layer.
- the sealing member 18 is a wiper member that can remove dust and the like attached by sliding on the inner surface of the pull chamber 1a. For this reason, the sealing member 18 can act as a sealing means in the wire cleaning mechanism and also as an inner surface cleaning mechanism.
- the first joint portion 11A includes a diameter dimension variable mechanism 23 that deforms or moves the sealing member 18 in the radial direction of the main tube portion 11.
- the diameter dimension variable mechanism 23 is provided between the sealing member 18 and the outer peripheral surface of the upper end of the first joint portion 11A, and is provided with a rubber tube (possible in an annular shape along the outer peripheral surface of the upper end portion of the first joint portion 11A.
- Flexible bag 24.
- the rubber tube 24 is fitted between the two flange portions 11Aa at the upper end of the first joint portion 11A, and the sealing member 18 is attached to the two flange portions 11Aa so as to be loosened up and down. In addition, you may provide the sealing member 18 in the outer peripheral surface of the rubber tube 24 directly.
- the rubber tube 24 is connected to a pressure pipe 25, and the pressure pipe 25 is connected to a pressurized air supply source (not shown). That is, the rubber tube 24 can be arbitrarily inflated by injecting air from the pressurized air supply source through the pressurized pipe 25.
- the first connecting portion 11A is provided with an external communication intake portion 21.
- the external communication intake portion 21 includes a through hole 21a provided in the lower flange portion 11Aa and a through hole 21b provided in the inner surface of the first joint portion 11A between the two flange portions 11Aa. Yes.
- the through hole 21a is disposed on the lower flange portion 11Aa on the central axis side of the first joint portion 11A than the rubber tube 24, and the space between the two flange portions 11Aa and the outside of the first joint portion 11A. Is communicated.
- a plurality of through-holes 21a can be arranged at the same height in the circumferential direction of the first joint portion 11A.
- the through hole 21b is provided on the inner surface of the first joint portion 11A at a height position between the two flange portions 11Aa and closer to the lower flange portion 11Aa than the rubber tube 24.
- the inside of the cylinder portion 11A communicates with the space between the two flange portions 11Aa. Further, the height of the through hole 21b is set so as to be on the upper side of the inner nozzle 13a.
- the air that flows in from the outer side in the circumferential direction of the main cylinder part 11 is configured to be ejected from the through hole 21b toward the center of the first joint part 11A. . Thereby, it becomes possible to block the inflow of air from the position below the through hole 21b upward from the through hole 21b by the air ejected from the through hole 21b, like an air curtain.
- the fourth joint portion 11 ⁇ / b> D which is the lower position of the main tube portion 11 is closed at the bottom portion 11 ⁇ / b> Db.
- the fourth joint portion 11D is provided with a suction hole 11Dc for connecting a gas suction pipe 15 for sucking the air inside the main cylinder portion 11 to the outside at a side position on the lower end side.
- a window portion 11Dd through which the inside of the main cylinder portion 11 can be observed by a transparent member on the side surface is provided at an upper position of 11Dc.
- the gas suction pipe 15 is connected to an exhaust unit (not shown) and can exhaust the inside of the main cylinder portion 11.
- FIG. 12 is a top view showing a state in which the main cylinder portion of the cleaning device in this embodiment is housed
- FIG. 13 is a front view showing a state in which the main tube portion of the cleaning device in this embodiment is housed.
- the joint portions 11A to 11D are placed on the carriage D in an upright state and can be stored as separated states.
- the carriage (support base) D includes a support portion D10 that constitutes a continuous stretching mechanism.
- the support portion D10 can support the handle 14 provided in the vicinity of the lower ends 11Ab to 11Cb of the joint portions 11A to 11C.
- the carriage D has arm portions D12, D12 projecting in the horizontal direction on each of two plates D11, D11 which are erected and spaced apart in parallel to the bottom plate D0, and the distal ends of the arm portions D12, D12. Grooves D13 and D13 are formed.
- the distance between the two plates D11 and D11 is set to be larger than the outer diameter of the joint portions 11A to 11C and smaller than the distance between the tips of the handles 14 facing each other along the diameter.
- the height of the groove D13 is such that the joint cylinder portions 11B to 11D that are added from below are brought into contact with each other with the handle 14 placed in the groove D13, and can be locked to each other by the locking portion 12. Is set to For this reason, it is preferable that the arm part D12 protrudes outside the outline of the bottom plate D0 of the carriage D in plan view.
- the support portion D10 mounts the handles 14 and 14 protruding outward in the radial direction in the grooves D13 and D13 in a state where the lower end 11Ab of the joint tube portion 11A is positioned between the plates D11 and D11.
- the flange portion 11A can be supported with the flange portion 11Aa side at the upper end of the joint portion 11A inserted into the pull chamber 1a from below.
- the upper end 11Ba of the joint tube portion 11B is inserted into the sealing portion 11b of the joint tube portion 11A, abuts against the lower end 11Ab of the joint tube portion 11A, and can be connected by the locking portion 12.
- the carriage D includes a position setting portion D3 provided as a convex portion or a concave portion on the bottom plate D0, and a bottom plate D0 at a position where the height position from the floor plate D0 is about half or higher than the height of the joint portions 11A to 11D.
- the joint portions 11A to 11D can be accommodated in a state in which the position is regulated as a standing state by the notch D21 provided in the parallel position regulating plate D2. Further, below the carriage D, wheels D4 as moving means are provided below the carriage D.
- the main body portion and the upper portion of the chamber 2 are separated, and the support portion D10 of the carriage D is disposed below the pull chamber 1a.
- the main cylinder portion 11 of the cleaning device 10 is placed on the carriage D in a divided state as shown in FIGS.
- the first tube portion 11A of the cleaning device 10 is inserted into the pull chamber 1a, and the first tube portion 11A is raised while being inserted, so that the handle (tube support portion) of the first tube portion 11A is raised. 14 is placed on the groove D13.
- the second joint portion 11B is disposed below the first joint portion 11A, and in this state, the sealed portion 11b of the joint portion 11A
- the upper end 11Ba of the joint portion 11B is inserted, brought into contact with the lower end 11Ab of the joint portion 11A, and connected by the locking portion 12.
- the first joint portion 11A and the second joint portion 11B, which are integrated, are raised while being inserted, and the handle (tube support portion) 14 of the second joint portion 11B is grooved D13. Placed on.
- the third joint portion 11C is disposed below the second joint portion 11B, and in this state, the sealed portion 11b of the joint portion 11B
- the upper end 11Ca of the joint part 11C is inserted, brought into contact with the lower end 11Bb of the joint part 11B, and connected by the locking part 12.
- the first joint portion 11A, the second joint portion 11B, and the third joint portion 11C that are integrated are raised while being inserted, and the handle (cylinder support portion) of the third joint portion 11C is raised. 14 is placed in the groove D13.
- the fourth joint portion 11D is disposed below the third joint portion 11C, and in this state, the sealed portion 11b of the joint portion 11C
- the upper end 11Da of the joint portion 11D is inserted, brought into contact with the lower end 11Cb of the joint portion 11C, and connected by the locking portion 12.
- the main cylinder part 11 will be in the state continued to axial length maximum.
- the gas suction pipe 15 is connected to the suction hole 11Dc, the inside of the main cylinder part 11 is sucked by the exhaust unit, and the inside of the pull head 1b is sucked by the pull head suction part 1g,
- the space and the internal space of the pull head 1b are set to a negative pressure almost in the same manner. As a result, the air does not flow into the pull chamber 1a from the center piece portion 1d.
- an air curtain is formed at the height of the through-hole 21b by the air ejected from the through-hole 21b, and air is prevented from flowing in from the lower position to the upper side than the through-hole 21b.
- the air ejected from the through hole 21b is the air having the cleanliness outside the single crystal pulling apparatus 1, that is, in the clean room.
- a downward laminar flow is formed inside the main cylinder portion 11, and the air inside the main cylinder portion 11 is efficiently discharged.
- the winding device 1c is driven and the wire W is inserted into the main tube portion 11. Further, after the coupler 13g and the cleaning air supply source are connected, compressed air is supplied from the air supply source to the blowing air supply pipe 13c, and the compressed air is passed through the particle filter 13e and the mist oil filter 13f. It sprays toward the wire W from each inner side nozzle 13a, 13b.
- the generated dust is caused by the laminar flow formed downward in the axial direction inside the main cylinder portion 11 maintained in an airtight state from the ejection hole 21b to the suction hole 11Dc by the exhaust unit connected to the gas suction pipe 15. It is discharged from the inside of the main cylinder part 11 without contacting the inner surface of the pull chamber 1a. Thereby, the dust generated by the cleaning does not reattach to the inner surface of the pull chamber 1a.
- the sealing member (wiper member) 18 is moved to the pull chamber 1a.
- the deposits can be scraped off.
- the sealing member (wiper member) 18 can be slid to scrape off the deposits.
- the locking of the locking portion 12 is released / relocked, the fourth joint portion 11D is separated from the second joint portion 11B, and the second joint portion 11B is separated from the first joint portion 11A.
- the fourth joint portion 11D is reconnected to the first joint portion 11A, and the sealing member (wiper member) 18 is slid on the inner peripheral surface of the pull chamber 1a at a lower position, so that the deposit Can also be scraped off.
- the sealing member (wiper member) 18 can be kept away from the inner peripheral surface of the pull chamber 1a by wiping the rubber tube 24, and the main cylinder part.
- the sealing member (wiper member) 18 does not get in the way when the 11 is inserted into the pull chamber 1a and set, or is pulled out from the pull chamber 1a, and the work can be performed smoothly.
- the cleaning device 10 of the present embodiment even when the pull chamber 1a is at a high place, the main cylinder portion 11 is inserted into the pull chamber 1a, and the air is blown into the inner nozzles 13a and 13b by the inner air blowing mechanism 13.
- the dust can be blown off from the surface of the wire W to be removed by spraying on the wire W in the main cylinder portion 11.
- the sealing member (wiper member) 18 can rub off the inner peripheral surface of the pull chamber 1a to scrape off the deposits. Thereby, it is possible to effectively suppress the influence of the dust on the pulling-up growth (such as dislocation of crystals).
- the main cylinder part 11 can be continued in the axial direction in a sealed state, the axial length of the main cylinder part 11 is extended, and the inner air blowing mechanism 13 is made to reach the upper part of the pull chamber 1a, so that the wire The cleaning of W can be performed at the upper end position of the pull chamber 1a, and when not in use, the main cylindrical portion 11 is separated and contracted to improve handling properties such as transportation and storage.
- quartz crucible 3 can be filled with the silicon raw material during the wire cleaning in the present embodiment, and the pull chamber 1a and the chamber 2 can be assembled after the cleaning.
- FIG. 14 is a top view showing a state in which the main cylinder portion of the cleaning device in the present embodiment is housed
- FIG. 15 is a front view showing a state in which the main tube portion of the cleaning device in the present embodiment is housed.
- Reference sign D11A is a support lifting unit.
- the support elevating part D11A is driven in the vertical direction by a driving means (not shown) in a state where the movement position is regulated in the vertical direction by the guide D11B standing on the bottom plate D0 of the carriage D. Can be done.
- the arms D12 and D12 are attached to the support elevating part D11A so that the arms D12 and D12 extend outward in the horizontal direction, and the arms D12 and D12 can be moved up and down integrally by the movement of the support elevating part D11A. .
- the arms D12 and D12 are moved up and down to arbitrary positions by moving the support elevating part D11A up and down while the handles 14 and 14 are placed in the grooves D13 and D13, respectively.
- the connecting tube portions 11A to 11C can be automatically raised and lowered. For example, it is possible to place the handle 14 in the groove D13 and raise the support lifting part D11A at the lowest position of the movable range in the support lifting part D11A during the transfer operation.
- the rubber tube 24 When connecting the connecting tube portions 11B to 11D from the lower side, the rubber tube 24 is inflated during the connection work, and the sealing member (wiper member) 18 is pressed against the inner peripheral surface of the pull chamber 1a.
- the main cylinder part 11 can also be held at a predetermined height. Furthermore, it is also possible to provide the support part raising / lowering mechanism of this embodiment and the support part D10 side by side.
- FIG. 16 is a front sectional view showing a state in which the main cylinder portion in the present embodiment is inserted into the pull chamber 1a.
- This embodiment is different from the first and second embodiments described above in that it relates to the outer nozzle (outer outlet) 33 and the vibration member 34, and other corresponding components are denoted by the same reference numerals. The description is omitted.
- the inner nozzles 13a and 13b for blowing air to the wire W are provided.
- An outer air blowing mechanism having a plurality of outer nozzles (outer outlets) 33 provided on the upper portion of 11A and capable of blowing air outward in the radial direction is provided.
- the vibration member 34 which contacts the wire W distribute
- each outer nozzle 33 is connected to the blowing air supply pipe 13c similarly to the inner nozzles 13a and 13b.
- the outer nozzle 33 can blow off the deposits on the inner surface of the pull chamber 1a by blowing the ejected air onto the inner peripheral surface of the pull chamber 1a.
- a downward laminar flow is formed over the entire length of the main cylinder portion 11 by the air ejected from each outer nozzle 33, and the air inside the main cylinder portion 11 is efficiently discharged.
- the air supplied from the blowing air supply pipe 13c is air having a degree of cleanness equivalent to or higher than that of the single crystal pulling apparatus 1, that is, in the clean room.
- the outer nozzle 33 can be used as a substitute for the external communication intake portion 21, the through holes 21a and 21b can be omitted.
- the cleaning device 10 of the present embodiment does not cause dust generated by cleaning to re-adhere to the inner surface of the pull chamber 1a, and can further reduce deposits on the inner surface of the pull chamber 1a.
- the vibration member 34 is a rod-like member connected to a vibration source such as a motor (not shown), and is provided so that the tip side can move in the main cylinder portion 11 so as to be able to contact and separate from the wire W. It has been. Thereby, by bringing the vibrating member 34 into contact with the wire W, it is possible to further easily remove dust adhered to the wire W by vibrating.
- the external communication intake portion 21 has the through holes 21a and 21b. However, in the axial direction of the joint portion 11A, it penetrates at a position closer to the inner nozzle 13a than the lower flange portion 11Aa. Only the hole 21b can be formed. Also in this configuration, it becomes easy to introduce external clean air into the main cylinder portion 11.
- the inner air blowing mechanism 13 is provided with the two inner nozzles 13a and 13b in the axial direction in two stages and in the circumferential direction.
- the number can also be set arbitrarily from the cleaning effect.
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Abstract
Description
前記プルチャンバ内に挿入可能な主筒部と、該主筒部の上部に、主筒部内に挿通される前記ワイヤーをクリーニングするワイヤークリーニング機構を備え、
前記主筒部が、複数の継筒部を軸方向に継ぎ足して密閉接続を可能とする継続延伸機構を備えることにより上記課題を解決した。
本発明の前記ワイヤークリーニング機構は、前記主筒部の内側に設けられた内側吹出口から半径方向内方に向けて空気を吹出可能な内方エア吹出機構を備えることができる。
本発明の前記内方エア吹出機構が、前記主筒部の内面と面一となるように設けられることができる。
本発明の前記主筒部には、前記内方エア吹出機構よりも上側に、前記主筒部の外側から連通する外部連通吸気部を有することができる。
本発明の前記主筒部の下端位置には、前記主筒部内側を吸引して排出するガス吸引管が設けられることができる。
本発明の前記主筒部の上端位置外周面には、前記内側吹出口からの空気吹出時に、前記主筒部が前記プルチャンバ内に挿入された状態でプルチャンバの内面に当接して密閉可能な密閉部材を備えていることができる。
本発明の前記密閉部材は、前記主筒部の軸方向移動時に縮径し、密閉時に拡径する径寸法可変機構を備えていることができる。
本発明の前記径寸法可変機構は、前記密閉部材と前記主筒部の外周面との間に設けられた可撓性袋体を備え、該可撓性袋体は、空気を注入して膨らませることが可能であることができる。
本発明の前記可撓性袋体は、前記主筒部の外周面に沿って環状に設けられたゴムチューブであることができる。
本発明の前記密閉部材が、その外周位置で前記プルチャンバの内面を摺動してクリーニング可能であることができる。
本発明の前記継続延伸機構が、前記主筒部における各継筒部の下端位置の径方向に突出する筒支持部と、
前記継筒部の継ぎ足し時に前記筒支持部を支持する支持台と、
を備えることができる。
本発明における単結晶引上装置のクリーニング方法は、密閉容器のプルチャンバ内に垂下されたワイヤーにより、プルチャンバ下方に設置されたルツボ内の半導体融液から半導体単結晶を引き上げる単結晶引上装置のワイヤークリーニングをおこなう単結晶引上装置のクリーニング方法であって、
前記プルチャンバ内にクリーニング装置の複数の継筒部を軸方向に継ぎ足して密閉接続を可能とする主筒部を挿入し、前記主筒部の上部に前記ワイヤーを挿通した状態で、前記主筒部の内側に設けられた内方エア吹出機構の内側吹出口から半径方向内方に向けて空気を吹出してクリーニングすることにより上記課題を解決した。
本発明における単結晶引上装置のクリーニング方法は、前記継続延伸機構が、前記主筒部における各継筒部の下端位置の径方向に突出する筒支持部と、前記継筒部の継ぎ足し時に前記筒支持部を支持する支持台と、を備え、
前記筒支持部を前記支持台で支持して前記主筒部のプルチャンバへの継ぎ足し・分解をおこなうことができる。
本発明における単結晶引上装置のクリーニング方法は、前記主筒部を前記プルチャンバ内に挿入し、前記主筒部の上端位置外周面に設けられた密閉部材が前記プルチャンバの内面に当接して密閉した状態で、前記内側吹出口から空気を吹出することができる。
本発明における単結晶引上装置のクリーニング方法は、前記主筒部の下端から前記主筒部内側を吸引して、前記内側吹出口よりも上側で前記主筒部の外側から連通する外部連通吸気部から空気を吹出することができる。
本発明における単結晶引上装置のクリーニング方法は、前記密閉部材が前記プルチャンバの内面に当接して密閉した状態で、前記密閉部材の外周位置が摺動して前記プルチャンバの内面をクリーニングすることができる。
前記プルチャンバ内に挿入可能な主筒部と、該主筒部の上部に、主筒部内に挿通される前記ワイヤーをクリーニングするワイヤークリーニング機構を備え、
前記主筒部が、複数の継筒部を軸方向に継ぎ足して密閉接続を可能とする継続延伸機構を備えることにより、プルチャンバ内部位置においてワイヤークリーニングをおこなう際に、プルチャンバの頂部付近までワイヤークリーニング機構の配された主筒部の上部が達するとともに、密閉した主筒部の下端をプルチャンバの外部に位置させることが可能となる。これにより、クリーニングで発生した粉塵を密閉した主筒部の内側に吸引して、主筒部とプルチャンバの間に粉塵が出てしまうことを防止して、プルチャンバ内面に付着しないように除去することが可能となる。これにより、再付着した粉塵に起因する有転位化を防止して引き上げ可能なクリーニングをおこなうことが可能となる。
前記継筒部の継ぎ足し時に前記筒支持部を支持する支持台と、
を備えることにより、主筒部のプルチャンバへの挿入・抜管時に、効率的に継筒部を着脱して、作業時間を短縮するとともに、主筒部のプルチャンバ内面への接触発生を容易に防止することができる。
前記プルチャンバ内にクリーニング装置の複数の継筒部を軸方向に継ぎ足して密閉接続を可能とする主筒部を挿入し、前記主筒部の上部に前記ワイヤーを挿通した状態で、前記主筒部の内側に設けられた内方エア吹出機構の内側吹出口から半径方向内方に向けて空気を吹出してクリーニングすることにより、プルチャンバの頂部付近まで内方エア吹出機構の配された主筒部の上部が達するとともに、密閉した主筒部の下端をプルチャンバの外部に位置させて、クリーニングで発生した粉塵を密閉した主筒部の内側に吸引して、主筒部とプルチャンバの間に粉塵が出てしまうことを防止して、プルチャンバ内面に付着しないように除去することが可能となる。これにより、再付着した粉塵に起因する有転位化を防止して引き上げ可能なクリーニングをおこなうことが可能となる。
前記筒支持部を前記支持台で支持して前記主筒部のプルチャンバへの継ぎ足し・分解をおこなうことにより、主筒部のプルチャンバへの挿入・抜管時に、効率的に継筒部を着脱して、作業時間を短縮するとともに、主筒部のプルチャンバ内面への接触発生を容易に防止することができる。
1a…プルチャンバ
1b…プルヘッド
1c…巻き上げ装置
1d…センターピース部
1f…プルヘッド吸引管
1g…プルヘッド吸引部
2…チャンバ
W…ワイヤー
SH…シードホルダ
SC…シードチャック
10…クリーニング装置
11…主筒部
11A…第1継筒部(継筒部)
11B…第2継筒部(継筒部)
11C…第3継筒部(継筒部)
11D…第4継筒部(継筒部)
11Ba~11Da…上端
11Ab~11Cb…下端
11Aa…フランジ部
11Db…底部
11Dc…吸引孔
11Dd…窓部
11b…密閉部
12…係止部
12a…フック
12b…ベース
12c…レバー
12d…キャッチ
14…ハンドル(筒支持部)
14a…傾斜面
13…内方エア吹出機構(ワイヤークリーニング機構)
13a,13b…内側ノズル(内側吹出口)
13c…吹付けエア供給管
13d…バルブ
13e…パーティクルフィルタ
13f…ミストオイルフィルタ
13g…カップラー
15…ガス吸引管
18…密閉部材
18a,18b…端部
18c…内側接合部
18d,18e…両折り部
21…外部連通吸気部
21a,21b…貫通孔
23…径寸法可変機構
24…ゴムチューブ(可撓性袋体)
25…加圧配管
D…台車(支持台)
D0…底板
D2…位置規制板
D21…切欠
D3…位置設定部
D4…車輪
D10…支持部
D11…板体
D12…腕部
D13…溝
D11A…支持昇降部
D11B…ガイド
図1は、本実施形態におけるクリーニング装置でクリーニングをおこなう単結晶引上装を示す正断面図であり、図において、符号1は、単結晶引上装置である。
係止部12は、図3~図10に示すように、密閉部11bを跨いで継筒部11Aと継筒部11Bと互いに係止・解除可能なもので、いわゆる、ドローラッチ(draw latch )とされている。
ベース12bとレバー12cとは相互に軸回転可能に連結され、かつキャッチ12dとレバー12cとは相互に軸回転可能に連結される。キャッチ12dは、係止に必要な弾性変形可能とされている。
同様に、係止部12は、図3~図8に示すように、継筒部11Dの上端11Daと、継筒部11Cの下端11Cbとには、継筒部11Cに継筒部11DCを継ぎ足した際に対応する位置に設けられている。
また、密閉部材18は、ポリエステル等で形成され、プルチャンバ1aの内周面に沿った環状となるように二重に折り返した状態で設けられている。具体的には、密閉部材18は、例えば丸編み機等で筒状に編成され伸縮性を有する布体からなり、この布体において、図11(a)に示すように、筒状の両端部18a,18bが対向するように内側に折り返されて、これらを互いに伸縮性を持って繋げ合わせた内側接合部18cによってトーラス状(輪環状)としたものである。
このとき、内側接合部18cをプルチャンバ1a内面に接触しないトーラスの内側に向けた状態で、筒状の両折り部18d,18e付近が上下のフランジ部11Aa外側周端部に取り付けられている。
例えば、密閉部材18を、φ200mmの半導体単結晶Cを引き上げる単結晶引上装置1のように、細い径寸法のプルチャンバ1aクリーニングに適用する場合には、図11(a)に示すように、内側接合部18cによって、両端部18a,18bを繋げ合わせた縮径状態で使用する。
さらに、この密閉部材18を、例えば、φ300mmの半導体単結晶Cを引き上げる単結晶引上装置1のように、太い径寸法のプルチャンバ1aのクリーニングに適用する場合には、図11(b)に示すように、内側接合部18cによる両端部18a,18bの接合を解除して伸縮率を上げるとともに、幅寸法を拡大した拡径状態で使用する。この場合、密閉部材18の全幅において、一重として使用することもできる。
径寸法可変機構23は、密閉部材18と第1継筒部11A上端の外周面との間に設けられ第1継筒部11A上端部の外周面に沿って環状に設けられたゴムチューブ(可撓性袋体)24を備えている。
外部連通吸気部21としては、下側のフランジ部11Aaに設けられた貫通孔21aと、2つのフランジ部11Aaの間となる第1継筒部11A内面に設けられた貫通孔21bとを備えている。
貫通孔21aは、第1継筒部11Aの周方向に複数同じ高さで配置されることができる。
また、貫通孔21bは、内側ノズル13aよりも上側となるようにその高さ位置が設定される。
ガス吸引管15は、図示しない排気ユニットに接続され、主筒部11内部を排気することができる。
継筒部11A~11Dは、図12~図13に示すように、それぞれ分離された状態として、台車Dに立状態で載置されて収納可能となっている。
支持部D10は、各継筒部11A~11Cの下端11Ab~11Cb付近に設けられたハンドル14を支持可能とされている。
また、溝D13の高さは、ハンドル14を溝D13に載置した状態で、下側から継ぎ足す継筒部11B~11Dを突き合わせるとともに係止部12によって互いに係止することが可能な寸法に設定されている。このため、腕部D12は、平面視して台車Dの底板D0の輪郭線よりも外側に突出していることが好ましい。
この状態で、継筒部11Aの密閉部11bに、継筒部11Bの上端11Baを挿入して、継筒部11Aの下端11Abに当接し、係止部12により接続することが可能となる。
さらに、同様にして、一体とされた第1継筒部11Aおよび第2継筒部11Bを挿入状態にしたまま上昇させて、第2継筒部11Bのハンドル(筒支持部)14を溝D13に載置する。
同様に、一体とされた第1継筒部11A、第2継筒部11Bおよび第3継筒部11Cを挿入状態にしたまま上昇させて、第3継筒部11Cのハンドル(筒支持部)14を溝D13に載置する。
これにより、主筒部11が軸方向最大長まで継続された状態となる。
また、これら第4継筒部11Dの分離・再接続に際しては、いずれも、ハンドル(筒支持部)14を溝D13に載置しておこなう。
さらに、本実施形態の支持部昇降機構と、支持部D10とを併設することも可能である。
図16は、本実施形態における主筒部がプルチャンバ1a内に挿入された状態を示す正断面図である。
本実施形態において上述した第1および第2実施形態と異なるのは外側ノズル(外側吹出口)33、振動部材34に関する点であり、これ以外の対応する構成要素に関しては、同一の符号を付してその説明を省略する。
この場合、外側ノズル33を外部連通吸気部21の替わりとすることができるので、貫通孔21a,21bを設けないこともできる。
Claims (16)
- 密閉容器のプルチャンバ内に垂下されたワイヤーにより、プルチャンバ下方に設置されたルツボ内の半導体融液から半導体単結晶を引き上げる単結晶引上装置内をクリーニングする装置であって、
前記プルチャンバ内に挿入可能な主筒部と、該主筒部の上部に、主筒部内に挿通される前記ワイヤーをクリーニングするワイヤークリーニング機構を備え、
前記主筒部が、複数の継筒部を軸方向に継ぎ足して密閉接続を可能とする継続延伸機構を備えることを特徴とする単結晶引上装置のクリーニング装置。 - 前記ワイヤークリーニング機構は、前記主筒部の内側に設けられた内側吹出口から半径方向内方に向けて空気を吹出可能な内方エア吹出機構を備える
ことを特徴とする請求項1記載の単結晶引上装置のクリーニング装置。 - 前記内方エア吹出機構が、前記主筒部の内面と面一となるように設けられることを特徴とする請求項2記載の単結晶引上装置のクリーニング装置。
- 前記主筒部には、前記内方エア吹出機構よりも上側に、前記主筒部の外側から連通する外部連通吸気部を有することを特徴とする請求項3記載の単結晶引上装置のクリーニング装置。
- 前記主筒部の下端位置には、前記主筒部内側を吸引して排出するガス吸引管が設けられることを特徴とする請求項4記載の単結晶引上装置のクリーニング装置。
- 前記主筒部の上端位置外周面には、前記内側吹出口からの空気吹出時に、前記主筒部が前記プルチャンバ内に挿入された状態で前記プルチャンバの内面に当接して密閉可能な密閉部材を備えていることを特徴とする請求項1記載の単結晶引上装置のクリーニング装置。
- 前記密閉部材は、前記主筒部の軸方向移動時に縮径し、密閉時に拡径する径寸法可変機構を備えていることを特徴とする請求項6記載の単結晶引上装置のクリーニング装置。
- 前記径寸法可変機構は、前記密閉部材と前記主筒部の外周面との間に設けられた可撓性袋体を備え、該可撓性袋体は、空気を注入して膨らませることが可能であることを特徴とする請求項7記載の単結晶引上装置のクリーニング装置。
- 前記可撓性袋体は、前記主筒部の外周面に沿って環状に設けられたゴムチューブであることを特徴とする請求項8記載の単結晶引上装置のクリーニング装置。
- 前記密閉部材が、その外周位置で前記プルチャンバの内面を摺動してクリーニングする内面クリーニング機構を備えることを特徴とする請求項6記載の単結晶引上装置のクリーニング装置。
- 前記継続延伸機構が、前記主筒部における各継筒部の下端位置の径方向に突出する筒支持部と、
前記継筒部の継ぎ足し時に前記筒支持部を支持する支持台と、
を備えることを特徴とする請求項1記載の単結晶引上装置のクリーニング装置。 - 密閉容器のプルチャンバ内に垂下されたワイヤーにより、プルチャンバ下方に設置されたルツボ内の半導体融液から半導体単結晶を引き上げる単結晶引上装置のワイヤークリーニングをおこなう単結晶引上装置のクリーニング方法であって、
前記プルチャンバ内にクリーニング装置の複数の継筒部を軸方向に継ぎ足して密閉接続を可能とする継続延伸機構を備えた主筒部を挿入し、前記主筒部の上部に前記ワイヤーを挿通した状態で、前記主筒部の内側に設けられた内方エア吹出機構の内側吹出口から半径方向内方に向けて空気を吹出してクリーニングすることを特徴とする単結晶引上装置のクリーニング方法。 - 前記継続延伸機構が、前記主筒部における各継筒部の下端位置の径方向に突出する筒支持部と、前記継筒部の継ぎ足し時に前記筒支持部を支持する支持台と、
を備え、
前記筒支持部を前記支持台で支持して前記主筒部のプルチャンバへの継ぎ足し・分解をおこなうことを特徴とする請求項12記載の単結晶引上装置のクリーニング方法。 - 前記主筒部を前記プルチャンバ内に挿入し、前記主筒部の上端位置外周面に設けられた密閉部材が前記プルチャンバの内面に当接して密閉した状態で、前記内側吹出口から空気を吹出することを特徴とする請求項12または13記載の単結晶引上装置のクリーニング方法。
- 前記主筒部の下端から前記主筒部内側を吸引して、前記内側吹出口よりも上側で前記主筒部の外側から連通する外部連通吸気部から空気を吹出することを特徴とする請求項14記載の単結晶引上装置のクリーニング方法。
- 前記密閉部材が前記プルチャンバの内面に当接して密閉した状態で、前記密閉部材の外周位置が摺動して前記プルチャンバの内面をクリーニングすることを特徴とする請求項14記載の単結晶引上装置のクリーニング方法。
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Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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US6090222A (en) * | 1998-11-16 | 2000-07-18 | Seh-America, Inc. | High pressure gas cleaning purge of a dry process vacuum pump |
JP3367910B2 (ja) | 1999-01-28 | 2003-01-20 | 三菱住友シリコン株式会社 | 単結晶引上げ機の不活性ガス排気系のクリーニング装置及びそのクリーニング方法 |
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JP5067403B2 (ja) | 2009-08-05 | 2012-11-07 | 信越半導体株式会社 | 単結晶引き上げ装置 |
KR20110109435A (ko) * | 2010-03-31 | 2011-10-06 | 주식회사 엘지실트론 | 단결정 성장장치 챔버의 크리닝 시스템 |
KR101401310B1 (ko) * | 2011-03-29 | 2014-05-29 | 가부시키가이샤 사무코 | 반도체 결정 제조 장치용 배기 통로의 클리닝 장치 및 그 클리닝 방법 |
US8757669B2 (en) * | 2012-03-23 | 2014-06-24 | Wu-Chiao Chou | Retractable pipe assembly of air blow gun |
US8739362B1 (en) * | 2012-05-21 | 2014-06-03 | Richard V. Conder | Gutter cleaning attachment for a leaf blower |
JP2015006642A (ja) * | 2013-06-25 | 2015-01-15 | 三菱マテリアルテクノ株式会社 | 清掃装置 |
DE112016000581B4 (de) * | 2015-02-03 | 2020-10-22 | Sumco Corporation | Verfahren zum Reinigen einer Einkristallziehvorrichtung, Reinigungswerkzeug zur Verwendung darin und Verfahren zur Herstellung eines Einkristalls |
-
2017
- 2017-02-02 WO PCT/JP2017/003797 patent/WO2018142541A1/ja active Application Filing
- 2017-02-02 JP JP2018565167A patent/JP6747526B2/ja active Active
- 2017-02-02 US US16/480,426 patent/US11198161B2/en active Active
- 2017-02-02 DE DE112017006983.1T patent/DE112017006983T5/de active Granted
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- 2017-02-02 CN CN201780085144.3A patent/CN110382749B/zh active Active
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Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001348293A (ja) * | 2000-06-06 | 2001-12-18 | Mitsubishi Materials Silicon Corp | 単結晶引上装置のクリーニング装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4130348A1 (en) | 2021-08-02 | 2023-02-08 | Siltronic AG | Device and method for producing a monocrystalline silicon rod |
WO2023011939A1 (en) | 2021-08-02 | 2023-02-09 | Siltronic Ag | Device and method for producing a monocrystalline silicon rod |
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JP6747526B2 (ja) | 2020-08-26 |
JPWO2018142541A1 (ja) | 2019-11-21 |
US20190388943A1 (en) | 2019-12-26 |
KR102253593B1 (ko) | 2021-05-18 |
TWI645081B (zh) | 2018-12-21 |
DE112017006983T5 (de) | 2019-10-10 |
CN110382749A (zh) | 2019-10-25 |
US11198161B2 (en) | 2021-12-14 |
TW201829858A (zh) | 2018-08-16 |
CN110382749B (zh) | 2021-10-01 |
KR20190100322A (ko) | 2019-08-28 |
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