WO2014084115A1 - 基板収納容器 - Google Patents
基板収納容器 Download PDFInfo
- Publication number
- WO2014084115A1 WO2014084115A1 PCT/JP2013/081389 JP2013081389W WO2014084115A1 WO 2014084115 A1 WO2014084115 A1 WO 2014084115A1 JP 2013081389 W JP2013081389 W JP 2013081389W WO 2014084115 A1 WO2014084115 A1 WO 2014084115A1
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- WO
- WIPO (PCT)
- Prior art keywords
- lid
- cover plate
- positioning
- main body
- locking mechanism
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/673—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 using specially adapted carriers or holders; Fixing the workpieces on such carriers or holders
- H01L21/6735—Closed carriers
- H01L21/67373—Closed carriers characterised by locking systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/14—Non-removable lids or covers
- B65D43/22—Devices for holding in closed position, e.g. clips
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/673—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 using specially adapted carriers or holders; Fixing the workpieces on such carriers or holders
- H01L21/6735—Closed carriers
- H01L21/67376—Closed carriers characterised by sealing arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/673—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 using specially adapted carriers or holders; Fixing the workpieces on such carriers or holders
- H01L21/6735—Closed carriers
- H01L21/67386—Closed carriers characterised by the construction of the closed carrier
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S206/00—Special receptacle or package
- Y10S206/832—Semiconductor wafer boat
Definitions
- the present invention relates to a substrate storage container used for storing, storing, transporting, transporting and the like of a substrate represented by a semiconductor wafer.
- a conventional substrate storage container is not shown, but a container main body that stores a plurality of semiconductor wafers, a lid that opens and closes the front of the container main body, and a locking mechanism that locks the lid that closes the front of the container main body, And used when transporting a semiconductor wafer to a semiconductor manufacturing factory (see Patent Documents 1, 2, and 3).
- the container body is formed into a front open box having a size capable of aligning and storing semiconductor wafers having a diameter of 300 mm or more, and a bottom plate is attached to the bottom plate. A plurality of positioning tools that fit and align with the positioning pins on the top are mounted.
- the lid body includes a substantially dish-shaped lid body that is detachably fitted to the front surface of the container body, and a cover plate that covers the open front surface of the lid body, and the lid body is provided between the lid body and the cover plate.
- a locking mechanism is interposed, and is automatically opened and closed by a lid opening / closing device.
- the cover plate is formed as a plate having a size corresponding to the front surface of the lid body, and an operation hole for a locking mechanism is formed in the center of both sides.
- the locking mechanism is a pair of rotary operation bodies that are pivotally supported by the lid body of the lid body and rotated from the outside, and slides in the vertical direction of the lid body with the rotation of each rotary operation body, and appears and disappears from the peripheral wall of the lid body And a plurality of latch bars that are in contact with and away from the front inner periphery of the container body.
- Each rotary operation body is formed, for example, in a disc having a pair of curved grooves on the peripheral edge, and is opposed to the operation hole of the cover plate, and is operated to rotate from the outside by the operation key of the lid opening / closing device penetrating the operation hole. Is done.
- the lid opening / closing device sucks and holds the lid, and the sucked and held lid is the container. It is press-fitted into the open front of the main body and is shallowly fitted.
- the operation key of the lid opening / closing device is inserted into the operation hole of the cover plate to rotate the rotation operation body of the locking mechanism, and the plurality of latch bars of the locking mechanism slide to each of the containers.
- the lid body is completely fitted to the front surface of the container main body, and the lid body is firmly locked.
- the operation key of the lid opening / closing device is inserted into the operation hole of the cover plate, and the rotation operation body of the locking mechanism is rotated.
- the cover plate And the rotary operating body may be pressed obliquely and a part of the rotary operation body may be lifted. If this lift is left as it is, there arises a problem that the cover plate and the rotating operation body whose posture is deteriorated come into contact with each other and are damaged or rubbed to generate dust, resulting in contamination of the semiconductor wafer and deterioration of the appearance of the lid.
- This problem becomes more serious when the substrate storage container is of a large type that accommodates a semiconductor wafer having a diameter of 450 mm because the rotary operation body is also enlarged.
- the present invention has been made in view of the above, and prevents the cover plate of the lid and the rotary operating body from coming into contact with each other and being damaged or rubbing to generate dust when the rotary operating body of the locking mechanism is rotated.
- An object of the present invention is to provide a substrate storage container that can be used.
- the present invention includes a container body that stores a substrate, a lid that opens and closes the opening of the container body, and a locking mechanism that locks the lid that closes the opening of the container body.
- the lid includes a lid body fitted into the opening of the container body, and a cover plate that covers the opening surface of the lid body,
- the locking mechanism is supported by the lid body and is rotated by an external rotation of the cover plate.
- the locking mechanism slides in response to the rotation of the rotary operation body, and protrudes and retracts from the peripheral wall of the lid body to open the inner periphery of the opening of the container body.
- a plurality of locking members contacting and separating from, Of the cover plate of the lid and the rotary operation body of the locking mechanism, at least the cover plate is provided with a posture control member for controlling the posture of the rotary operation body.
- position control member which makes a point contact or a line contact to the peripheral part of a rotation operation body
- an encircling rib for the rotary operation body of the locking mechanism can be formed on the facing surface of the cover plate, and a plurality of posture control members can be provided in the encircling rib.
- a posture control member that makes point contact or line contact with the lid body of the lid can be provided on the rotary operation body of the locking mechanism.
- the positioning means includes a plurality of first positioning members formed on the facing surface of the lid body and a second positioning member formed on the facing surface of the cover plate, and the plurality of first positioning members are spaced apart from each other.
- the first positioning members are bent to form openings between the two end portions, and a plurality of second positioning members are formed at intervals to form the size.
- the second positioning members can be bent along the first positioning members, and each second positioning member can be bent to define an opening between both ends thereof. It is.
- the plurality of first and second positioning members can each be formed in a substantially semicircular arc shape, a substantially horseshoe shape, a substantially hem shape, a substantially C shape, a substantially U shape, or a substantially V shape. is there.
- the substrate in the claims includes at least ⁇ 200 mm, 300 mm, 450 mm semiconductor wafer, liquid crystal substrate, glass substrate and the like.
- the container body and the lid may be transparent, opaque, or translucent.
- the main body of the container is mainly a front open box type, but may be a top open box type.
- the required number of posture control members can be provided on the cover plate of the lid, or the required number can be provided on the cover plate and the rotary operation body of the locking mechanism.
- the posture control member is preferably capable of contacting at least the peripheral portion of the rotary operation body, but can also be in contact with a portion other than the peripheral portion of the rotary operation body.
- the fixing means includes (1) a combination of a plurality of screw bosses formed on the lid body and screw members (screws, bolts, etc.) that pass through the cover plate and are screwed to the screw bosses, respectively (2 ) A combination of a plurality of locking recesses formed on the lid body and a locking projection protruding from the cover plate and locking to the locking recesses, respectively. (3) A plurality of cylindrical bosses formed on the lid body. And a combination of ribs protruding from the cover plate and fitted to the plurality of cylindrical bosses.
- the positioning means can be provided at the center or side of the lid body and cover plate.
- the plurality of first positioning members of the positioning means are preferably formed with different radii of curvature and curvatures when curved. This also applies to the plurality of second positioning members.
- the opening direction of the first and second positioning members is preferably downward, but may be upward, obliquely downward, left and right lateral directions, and the like.
- the second positioning member is preferably attached to the peripheral surface of the first positioning member via a gap, but there may be no gap.
- the attitude control member is attached to the rotary operation body of the locking mechanism even if the cover plate of the lid is pushed by the lid opening / closing device or the like. Prevents the posture of the rotating operation body from collapsing or varying.
- the cover plate of the lid body and the rotary operation body can be prevented from being damaged or rubbed to generate dust. effective.
- this effect can prevent contamination of the substrate and deterioration of the appearance of the lid.
- the posture control member since the posture control member is brought into contact with the outer peripheral edge where the operating force acts stronger than the central portion of the rotary operation body and the vicinity thereof, the posture of the rotary operation body is more appropriately controlled. can do.
- the contact area is reduced by making the posture control member not a surface contact but a point contact or a line contact, the rotating operation body can be stably rotated while suppressing damage and dust generation of the posture control member.
- the posture of the rotary operation body can be controlled more reliably.
- the contact area is reduced by making the attitude control member contact the lid body instead of surface contact instead of point contact or line contact, damage to the attitude control member and dust generation can be suppressed, and rotation of the rotary operation body can be stabilized. It becomes possible.
- the positioning means effectively prevents the cover plate from being distorted or displaced, the positioning recess of the cover plate or the detected portion is less likely to be displaced. Therefore, the detection part of the lid can be accurately detected by the detection sensor of the lid opening / closing device, and it is possible to prevent the lid opening / closing device from stopping during the lid opening / closing operation.
- the positioning means facilitates visual discrimination of the cover plate orientation, there is little risk of accidentally attaching a cover plate with the opposite orientation, and simplification and speeding up of the lid assembly work can be expected. .
- the openings of the first and second positioning members are both directed downward, the cleaning water can be smoothly drained when the lid is cleaned. Therefore, it is possible to improve drainage and drainage during the cleaning of the lid, and to facilitate the drying operation after the cleaning.
- FIG. 1 is an overall perspective view schematically showing an embodiment of a substrate storage container according to the present invention. It is front explanatory drawing which shows typically embodiment of the substrate storage container which concerns on this invention. It is a disassembled perspective view which shows typically the cover body in embodiment of the substrate storage container which concerns on this invention. It is a section explanatory view showing typically the lid in the embodiment of the substrate storage container concerning the present invention. It is front explanatory drawing which shows typically the lid body in embodiment of the substrate storage container which concerns on this invention. It is back surface explanatory drawing which shows typically the cover plate in embodiment of the substrate storage container which concerns on this invention. It is front explanatory drawing which shows typically the rotation operation body of the locking mechanism in embodiment of the substrate storage container which concerns on this invention.
- a substrate storage container in this embodiment includes a container body 1 for aligning and storing a plurality of semiconductor wafers.
- the lid body 10 and the cover plate are provided with a transparent lid 10 that opens and closes the front surface of the container body 1 and a locking mechanism 30 that locks the lid body 10 that closes the front surface of the container body 1.
- the fixing means 40 and the positioning means 50 are disposed respectively, and a plurality of posture control members 60 for the locking mechanism 30 are formed on at least the cover plate 19 of the lid body 10.
- the semiconductor wafer is made of a large thin heavy silicon wafer having a diameter of, for example, 450 mm, and is stored horizontally in the container body 1, and a plurality of pieces (eg, 10 pieces, 25 pieces, etc.) are aligned vertically.
- the container body 1, the lid body 10, the locking mechanism 30, the positioning means 50, and the attitude control member 60 are each formed by combining a plurality of parts by injection molding with a molding material containing a required resin.
- the resin contained in the molding material include thermoplastic resins such as polycarbonate, cycloolefin polymer, polyetherimide, polyether ketone, polyether ether ketone, polybutylene terephthalate, polyacetal, and liquid crystal polymer, and alloys thereof. .
- resins are added with conductive materials made of carbon fibers, carbon powder, carbon nanotubes, conductive polymers, and various antistatic agents such as anions, cations, and nonionics as necessary.
- conductive materials made of carbon fibers, carbon powder, carbon nanotubes, conductive polymers, and various antistatic agents such as anions, cations, and nonionics as necessary.
- benzotriazole-based, salicylate-based, cyanoacrylate-based, oxalic acid anilide-based, hindered amine-based ultraviolet absorbers are added, and glass fibers, carbon fibers, and the like that improve rigidity are also selectively added.
- the container body 1 is formed into a front open box having a front opening using a required molding material, and a semiconductor wafer is formed on both sides of the inside, in other words, on the inner surfaces of both sides.
- a pair of left and right support pieces that are horizontally supported are provided, and the pair of support pieces are arranged at a predetermined pitch in the vertical direction, and each support piece is formed as an elongated plate piece extending in the front-rear direction.
- a bottom plate 2 for a lid opening / closing device is screwed to the bottom plate of the container body 1 from below, and either one of the bottom plate or the bottom plate 2 is fitted to a positioning pin on a table of the lid opening / closing device from above.
- a plurality of positioning tools for positioning together are arranged.
- a robotic flange 3 for transport that is gripped by a ceiling transport mechanism of a semiconductor manufacturing factory is attached to the center of the ceiling of the container body 1.
- the front surface of the container body 1 projects outward while the peripheral edge is bent, and locking holes for the locking mechanism 30 are drilled on both the upper and lower sides of the inner peripheral edge. Further, forklift flanges 4 for transporting in the front-rear direction are respectively formed on the lower portions of the outer surfaces of both side walls of the container body 1 so as to protrude.
- the lid body 10 has a shallow lid body 11 having a substantially dish-shaped cross section that is detachably press-fitted to the front surface of the container body 1, and an opening of the lid body 11. And a transparent cover plate 19 that is detachably attached to the front surface 12.
- a locking mechanism 30 is interposed between the lid body 11 and the cover plate 19. It opens and closes automatically.
- the lid body 11 has light transmittance and transparency, and a front rectangular raised portion 13 is integrally formed at the center of the opened front surface 12 side. Locking mechanisms 30 are provided on both right and left sides of the raised portion 13.
- the installation area 14 for each is divided. In each installation region 14, a pair of left and right guide ribs 15 for the locking mechanism 30 are integrally formed in the vertical direction, and the pair of guide ribs 15 oppose each other with a gap therebetween.
- the lid body 11 is a front retainer that holds the front edge of each semiconductor wafer with an elastic holding piece on the back surface opposite to the front edge of the plurality of semiconductor wafers accommodated in the container body 1, that is, on both sides of the back surface. 16 are respectively mounted.
- a frame-shaped gasket groove is cut out on the peripheral edge or peripheral wall of the back surface of the lid main body 11, and a frame-shaped gasket 17 that is deformed by being pressed against the inner peripheral edge of the front surface of the container main body 1 is fitted into the gasket groove.
- the cover plate 19 is formed as a plate having a size corresponding to the front surface 12 of the lid body 11, and a plurality of screw holes 20 for the fixing means 40 are formed.
- the cover plate 19 has a plurality of cleaning grooves 21 in the center thereof, and operation holes 22 for the locking mechanism 30 in the center of the left and right sides.
- the plurality of cleaning grooves 21 each include a plurality of long cleaning grooves 21 and short cleaning grooves 21, which are arranged substantially radially with respect to the central portion of the cover plate 19. 13 is opposed.
- Positioning recesses 23 adjacent to the peripheral edge portions are formed in the left and right sides of the surface exposed to the outside of the cover plate 19, respectively. Corners on the surface of the cover plate 19, for example, four corners, are detected by the lid opening / closing device Each of the detected parts 24 detected by a sensor (for example, a photoelectric sensor) is formed, and each detected part 24 is formed in a flat circular shape.
- surrounding ribs 25 for the locking mechanism 30 adjacent to the plurality of cleaning grooves 21 are formed on both sides of the back surface of the cover plate 19 facing the lid body 11. Each surrounding rib 25 surrounds the operation hole 22 and functions to limit the contamination range of the dust generated by the operation of the locking mechanism 30.
- the locking mechanism 30 includes a pair of left and right rotary operation bodies 31 that are pivotally supported by a pair of installation regions 14 of the lid body 11 and are rotated from the outside.
- a plurality of latch bars 36 that slide in the vertical direction of the lid body 10 in accordance with the rotation of the operation body 31, appear in and out of the intrusion hole 18 of the lid body 11, and come in contact with and away from the locking holes of the container body 1 are configured.
- Each rotary operation body 31 is configured, for example, by combining two rotary plates 33 and 33A each having a pair of curved grooves 32 at the peripheral portion.
- the two rotary plates 33 and 33A are formed in a substantially disc shape or a substantially cylindrical shape that can be fitted to each other, and a key hole 34 that faces the operation hole 22 of the cover plate 19 is formed in the center thereof.
- the operation key of the lid opening / closing device penetrating the operation hole 22 is removably inserted into the key hole 34.
- a contacted portion 35 is integrally formed on the peripheral portion of the rotating plate 33 located on the cover plate 19 side, and a plurality of posture control members 60 are in contact with the contacted portion 35.
- Such a rotating operation body 31 is surrounded by the surrounding ribs 25 of the cover plate 19, the key hole 34 is opposed to the operation hole 22, and the rotation operation body 31 is rotated by the operation key of the lid opening / closing device penetrating the operation hole 22.
- Each latch bar 36 is formed in a vertically long plate shape, and is slidably sandwiched between the pair of guide ribs 15 in the installation area 14 with the end portion sandwiched between the two rotating plates 33 and 33A.
- a connecting pin 37 that is slidably fitted into the curved groove 32 of the rotary operation body 31 is formed to project at the end of the latch bar 36.
- the fixing means 40 includes, for example, a plurality of female screw bosses 41 projecting in a cylindrical shape on the front surface 12 of the lid body 11, and a plurality of female screw bosses 41. It has a male screw 42 to be screwed, and functions so that the lid body 11 and the cover plate 19 are detachably fixed and integrated.
- the plurality of female screw bosses 41 are integrally formed on the periphery of the raised portion 13 of the lid body 11 and the installation region 14.
- the male screw 42 passes through the plurality of screw holes 20 drilled in the cover plate 19 and is screwed into the female screw boss 41.
- the positioning means 50 is a pair of first positioning members that are arranged on the raised portion 13 of the lid body 11 and project in the direction of the cover plate 19. 51 and 51A, and a pair of second positioning members 53 and 53A that are arranged on the back surface of the cover plate 19 and project in the direction of the lid body 11, and the plurality of first and second positioning members 51 and 51A. , 53 and 53A mesh with each other in the thickness direction of the lid body 10 (see FIG. 8).
- the pair of first positioning members 51 and 51A are arranged at intervals above and below the surface of the raised portion 13 to facilitate visual discrimination or alternately fit with the second positioning members 53 and 53A. From the viewpoint of preventing vertical displacement, the first positioning member 51 is formed in a different size, and the first positioning member 51 positioned above is formed smaller than the first positioning member 51A positioned below.
- the first positioning members 51 and 51A are each curved and formed in a substantially semicircular arc shape.
- An opening 52 is defined between both ends of the first positioning member 51, and an opening 52A is defined between both ends of the first positioning member 51A. Both of these openings 52 and 52A are the lid body 10. This prevents the cleaning water from remaining at the time of cleaning.
- the pair of second positioning members 53 and 53A are arranged at intervals above and below the central portion of the back surface of the cover plate 19, and are formed in different sizes from the viewpoint of facilitating visual discrimination.
- the second positioning member 53 positioned above is formed larger than the second positioning member 53A positioned below (see FIGS. 9 and 10).
- Each of the second positioning members 53 and 53A is curved in a substantially semicircular arc shape so as to be close to the end of the cleaning groove 21 and on the inner or outer peripheral surface of the first positioning member 51 or 51A.
- the both ends are aligned with the both ends of the first positioning members 51 and 51A.
- An opening 54 is defined between both end portions of the second positioning member 53, and an opening 54 A is defined between both end portions of the second positioning member 53 A.
- These openings 54 and 54 A are formed on the lid 10. Directing downward to improve drainage and drainage during cleaning.
- the second positioning member 53 located above has an inner diameter larger than the outer diameter of the first positioning member 51 located above, preferably the outer circumference of the first positioning member 51. It faces the surface through a slight gap 55 for drainage.
- a plurality of protrusions 56 that are in point contact with the outer peripheral surface of the first positioning member 51 are arranged at intervals on both ends and the central portion of the inner peripheral surface of the second positioning member 53.
- Each protrusion 56 is formed in a minute front substantially semicircular shape from the viewpoint of suppressing generation of particles accompanying wear.
- the second positioning member 53 located above appropriately opposes only the first positioning member 51 located above.
- the second positioning member 53A positioned below has an outer diameter smaller than the inner diameter of the first positioning member 51A positioned below, preferably as shown in FIG. It faces the inner peripheral surface of the member 51A through a slight gap 55 for drainage.
- a plurality of protrusions 56 that are in point contact with the inner peripheral surface of the first positioning member 51A are arranged at intervals on both ends and the center of the outer peripheral surface of the second positioning member 53A.
- Each protrusion 56 is formed in a small, substantially semicircular shape in order to suppress generation of particles accompanying wear.
- Such a second positioning member 53A positioned below properly opposes only the first positioning member 51A positioned below.
- the first and second positioning members 51 and 53 positioned above and the first and second positioning members 51A and 53A positioned below are configured as described above.
- the asymmetric relationship with respect to the center line effectively eliminates the possibility of accidentally covering the cover plate 19 upside down when the lid 10 is assembled.
- the second positioning member 53 positioned above the cover plate 19 is positioned on the outer peripheral side (the upper side in FIG. 8) of the first positioning member 51 formed on the lid body 11 and positioned below the cover plate 19. Since the second positioning member 53A to be positioned is located on the inner peripheral side (lower side in FIG. 8) than the first positioning member 51A formed on the lid body 11, the cover plate 19 fitted to the lid body 11 is The movement in the horizontal direction and the movement in the vertical direction in FIG.
- the plurality of posture control members 60 are arranged at intervals near the peripheral edge of each surrounding rib 25 and include a periphery including the vicinity of the maximum outer diameter of the rotary operation body 31. Opposite the part.
- Each posture control member 60 is formed so as to protrude in a small semicircular cross section from the viewpoint of suppressing damage to the rotary operation body 31 and generation of particles, and the contacted portion 35 of the rotary plate 33 constituting the rotary operation body 31. Point contact with the opposite surface.
- the cover plate 19 is placed on the open front surface 12 of the lid body 11, and the pair of first positioning members 51 and 51 ⁇ / b> A of the lid body 11 is covered with the second positioning member 53.
- the protrusions 56 of 53A are brought into point contact with each other, and the lid body 11 and the cover plate 19 are appropriately positioned in the vertical and horizontal directions.
- the orientation of the lid body 11 with respect to the cover plate 19 can be properly grasped.
- the second positioning member 53A and the plurality of protrusions 56 interfere with the first positioning member 51, and the first positioning member 51A Since the second positioning member 53 and the plurality of protrusions 56 come into contact with each other, and the first and second positioning members 51, 51A, 53, 53A are prevented from facing or contacting each other, the vertical relationship of the cover plate 19 is maintained. You can easily grasp the mistake.
- the male screw 42 is sequentially screwed into the plurality of female screw bosses 41 from the cover plate 19 side, thereby covering the cover main body 11 with high accuracy. Then, the lid 10 can be assembled. At this time, even if the cover plate 19 tries to rotate slightly in the rotation direction of the male screw 42, the plurality of protrusions 56 restrict the rotation of the cover plate 19, so that the cover plate 19 may be fixed in a distorted state. Therefore, it is possible to expect matching between the female screw boss 41 and the screw hole 20 of the cover plate 19.
- the lid body opening / closing device holds the lid body 10 by vacuum suction, and the suction-holded lid body 10 is press-fitted into the open front surface of the container body 1 and is shallowly fitted.
- the operation key of the lid opening / closing device passes through the operation hole 22 of the cover plate 19 and is inserted into the key hole 34 of the rotation operation body 31 of the locking mechanism 30, so that the rotation operation body is inserted. 31 is rotated in the locking direction.
- each posture control is performed on the contacted portion 35 of the rotary plate 33 constituting the rotary operation body 31. This prevents the member 60 from making point contact and causing the balance of the rotary operation body 31 to collapse in the thickness direction of the lid body 10.
- the plurality of latch bars 36 of the locking mechanism 30 slide in the vertical direction and are firmly fitted and locked in the locking holes of the container body 1. By the locking, the lid body 10 is drawn into the front surface of the container body 1 and is completely fitted, and the lid body 10 is firmly locked.
- the cover plate 19 and the rotating operation body 31 whose posture has deteriorated are not in contact with each other and are damaged or rubbed to generate particles, which does not cause contamination of the semiconductor wafer or deterioration of the appearance of the lid 10.
- This effect is very significant because the rotary operation body 31 is increased in size when the substrate storage container is a large type that stores a semiconductor wafer having a diameter of 450 mm.
- the positioning means 50 effectively prevents the cover plate 19 from being distorted or displaced, the positioning recess 23 and the detected portion 24 of the cover plate 19 are not displaced. Therefore, the detection part 24 of the lid 10 can be accurately detected by the detection sensor of the lid opening / closing device, and the problem that the lid opening / closing device stops during the opening / closing operation of the lid 10 can be solved. . This effect is very significant when the substrate storage container is a large type that stores a semiconductor wafer of ⁇ 450 mm.
- the positioning means 50 facilitates visual discrimination of the vertical relationship of the cover plate 19, there is no risk of accidentally covering the cover plate 19 upside down, thereby simplifying and speeding up the assembly work. Can be planned.
- the second positioning members 53 and 53A are not in surface contact with the first positioning members 51 and 51A, but the protrusions 56 of the second positioning members 53 and 53A are in point contact, so that wear is suppressed, It becomes possible to prevent contamination of the semiconductor wafer due to generation of particles.
- the openings 52 and 54 of the first and second positioning members 51 and 51A, 53 and 53A are both directed downward, and the liquid is distributed between the first and second positioning members 51 and 51A, 53 and 53A.
- the protrusions 56 are minute, the flow of the cleaning water is not hindered when the lid 10 is cleaned by ultrasonic irradiation or the like. Therefore, it is possible to improve drainage and drainage during the cleaning of the lid body 10 and to facilitate the drying operation after the cleaning.
- the first and second positioning members 51, 53, first, The two positioning members 51A and 53A can be appropriately opposed and brought into contact with each other.
- the detected portions 24 are formed at the four corners of the surface of the cover plate 19, respectively. However, the detected portions 24 are formed at the two corners on the diagonal diagonal line, and each detected portion 24 is flattened as a mirror surface. It may be processed. Further, a portion that is higher (thicker) or lower (thin) than other portions of the rotating plate 33 may be formed on the peripheral edge of the rotating plate 33, and this portion may be used as the contacted portion 35. Moreover, in the said embodiment, although the 2nd positioning member 53 was made to oppose the 1st positioning member 51, even if it makes the some 2nd positioning member 53 oppose the inner peripheral surface of the 1st positioning member 51, respectively. good. Similarly, a plurality of second positioning members 53A may be opposed to the inner and outer peripheral surfaces of the first positioning member 51A.
- the opening 52 may be defined only on the first and second positioning members 51 and 51A, or the opening 54 may be defined only on the second positioning members 53 and 53A.
- a plurality of protrusions 56 can be arranged at intervals on either the inner or outer peripheral surface of the first positioning member 51 or 51A. Further, a plurality of protrusions 56 can be arranged at intervals on the peripheral surfaces of the first and second positioning members 51, 51A, 53, 53A. Further, the first and second positioning members 51, 51A, 53, 53A can be colored in mutually different colors to facilitate visual identification.
- first and second positioning members 51, 51A, 53, 53A are formed in a substantially U shape, and the openings 52, 54 of the first, second positioning members 51, 51A, 53, 53A are respectively downward. It is also possible to turn to Further, the first positioning member 51 positioned above can be formed larger than the first positioning member 51A positioned below. In this case, the second positioning member 53 positioned above the cover plate 19 is positioned on the inner peripheral side (lower side in FIG. 8) of the first positioning member 51 formed on the lid body 11, and The second positioning member 53A positioned below is positioned on the outer peripheral side (upper side in FIG. 8) than the first positioning member 51A formed on the lid body 11.
- the protrusion 56 may be formed in a small frontal substantially triangular shape, and the protrusion 56 may be brought into line contact instead of point contact.
- a plurality of posture control members 60 that are in point contact with the installation area 14 are arranged in the vicinity of the peripheral portion of the opposing surface facing the installation area 14 of the rotation plate 33A, and the rotary operation body 31 is arranged. You may make it rotate stably.
- the posture control member 60 may be formed in an elliptical shape, an oval shape, a triangular shape, a quadrangular shape, a polygonal shape, etc. in addition to a circular shape in plan view.
- the cross-sectional shape of the posture control member 60 may be a semicircular shape, an arc shape, a curved shape, a triangle, a pentagon, or the like, and may be point-contacted or line-contacted with the rotating plate 33 constituting the rotating operation body 31. .
- the attitude control member 60 can be formed in a shape having a protrusion that can make point contact or line contact with the rotary operation body 31.
- the cross-sectional shape of the posture control member 60 is formed in a semicircular shape or a curved shape, damage and wear of the rotary operation body 31 and the posture control member 60 are effective at the time of contact between the rotary operation body 31 and the posture control member 60. Can be suppressed.
- the substrate storage container according to the present invention is used in the field of manufacturing semiconductors and liquid crystals.
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Abstract
Description
蓋体は、容器本体の開口部に嵌め合わされる蓋本体と、この蓋本体の開口面を覆うカバープレートとを含み、
施錠機構は、蓋本体に支持されてカバープレートの外部から回転操作される回転操作体と、この回転操作体の回転に応じてスライドし、蓋本体の周壁から出没して容器本体の開口部内周に接離する複数の施錠部材とを含み、
蓋体のカバープレートと施錠機構の回転操作体のうち、少なくともカバープレートに、回転操作体の姿勢を制御する姿勢制御部材を設けたことを特徴としている。
また、カバープレートの対向面に、施錠機構の回転操作体用の包囲リブを形成し、この包囲リブ内に、複数の姿勢制御部材を設けることができる。
また、施錠機構の回転操作体に、蓋体の蓋本体に点接触又は線接触する姿勢制御部材を設けることもできる。
カバープレートに光透過性を付与し、このカバープレートには、位置決め凹部と被検出部とをそれぞれ形成し、
位置決め手段は、蓋本体の対向面に複数形成される第一の位置決め部材と、カバープレートの対向面に複数形成される第二の位置決め部材とを含み、複数の第一の位置決め部材を間隔をおき形成してその大きさを相互に異ならせ、各第一の位置決め部材を屈曲してその両端部付近間に開口を区画し、複数の第二の位置決め部材を間隔をおき形成してその大きさを相互に相違させるとともに、各第二の位置決め部材を屈曲して第一の位置決め部材に沿わせ、各第二の位置決め部材を屈曲してその両端部付近間に開口を区画することが可能である。
10 蓋体
11 蓋本体
12 正面
13 隆起部
14 設置領域
19 カバープレート
20 螺子孔
23 位置決め凹部
24 被検出部
25 包囲リブ
30 施錠機構
31 回転操作体
33 回転プレート
33A 回転プレート
35 被接触部
36 ラッチバー(施錠部材)
40 固定手段
41 雌螺子ボス
42 雄螺子
50 位置決め手段
51 第一の位置決め部材
51A 第一の位置決め部材
52 開口
53 第二の位置決め部材
53A 第二の位置決め部材
54 開口
55 隙間
56 突部
60 姿勢制御部材
Claims (4)
- 基板を収納する容器本体と、この容器本体の開口部を開閉する蓋体と、容器本体の開口部を閉鎖した蓋体を施錠する施錠機構とを備えた基板収納容器であって、
蓋体は、容器本体の開口部に嵌め合わされる蓋本体と、この蓋本体の開口面を覆うカバープレートとを含み、
施錠機構は、蓋本体に支持されてカバープレートの外部から回転操作される回転操作体と、この回転操作体の回転に応じてスライドし、蓋本体の周壁から出没して容器本体の開口部内周に接離する複数の施錠部材とを含み、
蓋体のカバープレートと施錠機構の回転操作体のうち、少なくともカバープレートに、回転操作体の姿勢を制御する姿勢制御部材を設けたことを特徴とする基板収納容器。 - 蓋体のカバープレートの蓋本体に対向する対向面に、回転操作体の周縁部に点接触又は線接触する姿勢制御部材を設けた請求項1記載の基板収納容器。
- 施錠機構の回転操作体に、蓋体の蓋本体に点接触又は線接触する姿勢制御部材を設けた請求項1又は2記載の基板収納容器。
- 蓋体の蓋本体とカバープレートとを固定する固定手段と、蓋本体とカバープレートとを位置決めする位置決め手段とを含み、
カバープレートに光透過性を付与し、このカバープレートには、位置決め凹部と被検出部とをそれぞれ形成し、
位置決め手段は、蓋本体の対向面に複数形成される第一の位置決め部材と、カバープレートの対向面に複数形成される第二の位置決め部材とを含み、複数の第一の位置決め部材を間隔をおき形成してその大きさを相互に異ならせ、各第一の位置決め部材を屈曲してその両端部付近間に開口を区画し、複数の第二の位置決め部材を間隔をおき形成してその大きさを相互に相違させるとともに、各第二の位置決め部材を屈曲して第一の位置決め部材に沿わせ、各第二の位置決め部材を屈曲してその両端部付近間に開口を区画した請求項1、2、又は3記載の基板収納容器。
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JPWO2014084115A1 (ja) | 2017-01-05 |
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