WO2018047541A1 - 基板収納容器及び気体置換ユニット - Google Patents
基板収納容器及び気体置換ユニット Download PDFInfo
- Publication number
- WO2018047541A1 WO2018047541A1 PCT/JP2017/028127 JP2017028127W WO2018047541A1 WO 2018047541 A1 WO2018047541 A1 WO 2018047541A1 JP 2017028127 W JP2017028127 W JP 2017028127W WO 2018047541 A1 WO2018047541 A1 WO 2018047541A1
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- WIPO (PCT)
- Prior art keywords
- gas
- container body
- housing member
- supply valve
- air supply
- Prior art date
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- Ceased
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/10—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP]
- H10P72/19—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP] closed carriers
- H10P72/1924—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP] closed carriers characterised by atmosphere control
- H10P72/1926—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP] closed carriers characterised by atmosphere control characterised by the presence of atmosphere modifying elements inside or attached to the closed carrier
-
- 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
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/04—Apparatus for manufacture or treatment
- H10P72/0402—Apparatus for fluid treatment
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/06—Apparatus for monitoring, sorting, marking, testing or measuring
- H10P72/0606—Position monitoring, e.g. misposition detection or presence detection
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/10—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/10—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP]
- H10P72/19—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP] closed carriers
- H10P72/1918—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP] closed carriers characterised by coupling elements, kinematic members, handles or elements to be externally gripped
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/10—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP]
- H10P72/19—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP] closed carriers
- H10P72/1924—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof using carriers specially adapted therefor, e.g. front opening unified pods [FOUP] closed carriers characterised by atmosphere control
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/30—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations
- H10P72/34—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations the wafers being stored in a carrier, involving loading and unloading
- H10P72/3404—Storage means
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/30—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations
- H10P72/34—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations the wafers being stored in a carrier, involving loading and unloading
- H10P72/3408—Docking arrangements
Definitions
- the present invention relates to a substrate storage container and a gas replacement unit for storing a plurality of substrates.
- Substrates such as semiconductor wafers are stored in the internal space of a substrate storage container, and are used for storage in warehouses, transportation between semiconductor processing devices, transportation between factories, and the like.
- the internal space may be replaced with an inert gas such as nitrogen gas or dry air so that the substrate stored in the internal space is not oxidized or contaminated.
- a substrate storage container As such a substrate storage container, a container main body for storing a plurality of substrates and a lid body that is detachably fitted to the opening of the container main body, and an internal space from the outside of the container main body to the bottom plate of the container main body A gas supply valve for supplying gas to the gas supply valve is fitted, a hollow blow nozzle connected to the air supply valve is provided upright, and a blow hole for blowing gas toward the substrate is provided on the peripheral wall of the blow nozzle. It is known (see Patent Document 1).
- the present invention has been made in view of the above problems, and provides a substrate storage container and a gas replacement unit in which variation in the humidity or concentration of gas is small in the internal space even when the storage state of the substrate changes. With the goal.
- One aspect according to the present invention is supplied from a container main body capable of storing a plurality of substrates, an air supply valve for supplying gas to the internal space from the outside of the container main body, and the air supply valve.
- a gas replacement unit that blows out the gas into the inner space of the container body, the substrate body is formed in a front open box, and the air supply valve is attached to the rear of the bottom surface.
- the gas replacement unit includes a housing member that stores the gas supplied from the air supply valve, and a cover member that covers the opening of the housing member, and the opening of the housing member extends in the rearward direction of the container body.
- the lower part of the housing member is connected to the air supply valve, and the housing member has a plurality of first blowout holes for blowing the stored gas in the front direction of the container body, Serial cover member has a second blowout hole for blowing out the opposite rearward direction and outlet direction of the first outlet hole.
- a container main body capable of storing a plurality of substrates, an air supply valve for supplying gas to the internal space from the outside of the container main body, and a supply from the air supply valve And a gas replacement unit that blows out the gas that has been blown into the internal space of the container body, wherein the container body is formed in a front open box, and the air supply valve is attached to the rear of the bottom surface.
- the gas replacement unit includes a housing member that stores the gas supplied from the air supply valve, and a cover member that covers an opening of the housing member, and the opening of the housing member is a front surface of the container body.
- the lower part of the housing member is connected to the air supply valve, and the cover member has a plurality of first blowing holes for blowing the stored gas in the front direction of the container body,
- Serial housing member has a second blowout hole for blowing out the opposite rearward direction and outlet direction of the first outlet hole.
- the gas replacement unit may include a filter member having air permeability inside the housing member and the cover member.
- the gas may be nitrogen gas or dry air.
- Another aspect according to the present invention includes a container body that can store a plurality of substrates, and an air supply valve that supplies gas to the internal space from the outside of the container body, and the container body
- the opening of the housing member is directed in the rearward direction of the container body, the lower part of the housing member is connected to the air supply valve, and the housing member stores the stored gas in the container body
- the cover member has a second blowout hole that blows out in the backward direction opposite to the blowout direction of the first blowout hole.
- FIG. 9 Another aspect according to the present invention includes: a container body that can store a plurality of substrates; and an air supply valve that supplies gas to the internal space from the outside of the container body.
- the opening of the housing member is directed in the front direction of the container body, and the lower part of the housing member is connected to the air supply valve, and the cover member is configured to supply the stored gas to the container body.
- the housing member has a second blowout hole that blows out in the rearward direction opposite to the blowout direction of the first blowout hole.
- the present invention it is possible to provide a substrate storage container and a gas replacement unit in which variation in gas humidity or concentration in the internal space is small even when the substrate storage state changes.
- FIG. 1 Schematic front view of container body, (b) Enlarged perspective view of gas replacement unit upper mounting part, (c) is an enlarged perspective view of gas replacement unit lower mounting part. It is an expansion perspective view of the upper attachment part of a gas substitution unit. It is an enlarged view of (a) lower attachment part of a gas substitution unit, and (b) a section perspective view. It is a cross-sectional perspective view which shows the flow of the gas which flowed in from the air supply valve. It is a perspective view of the gas substitution unit of a 2nd embodiment. It is a disassembled perspective view of the gas replacement unit of 2nd Embodiment. It is (a) front view, (b) top view, (c) bottom view, (d) back view of the gas replacement unit of 2nd Embodiment.
- FIG. 1 is an exploded perspective view of a substrate storage container according to the first embodiment of the present invention.
- 2 is a front view of the container body
- FIG. 3 is a bottom view of the container body
- FIG. 4 is a cross-sectional plan view of the container body.
- a substrate storage container 1 shown in FIG. 1 includes a container main body 2 that stores a plurality of substrates W, and a lid 4 that is detachably attached to an opening of the container main body 2.
- Examples of the substrate W stored in the substrate storage container 1 include a semiconductor wafer having a diameter of 300 mm or 450 mm, a mask glass, and the like.
- the container body 2 is a so-called front open box type formed of a front opening frame 2a, a back wall 2b, a right side wall 2c, a left side wall 2d, a top surface 2e, and a bottom surface 2f.
- the lid 4 is attached to the opening of the front opening frame 2 a of the container body 2, and is attached so that a seal gasket (not shown) faces the front opening frame 2 a of the container body 2.
- the seal gasket is in close contact with the peripheral edge between the container body 2 and the lid 4 and is configured to maintain the airtightness of the internal space of the substrate storage container 1. ing.
- the air in the internal space of the substrate storage container 1 in which the airtightness is maintained is replaced with the gas G by the gas replacement units 3R and 3L described later.
- the rear wall 2b of the container body 2 is further formed with protrusions protruding rearward B on the left and right sides (see FIG. 4).
- the protrusion functions as a leg when placed with the opening of the front F of the container body 2 facing upward.
- a scale for assisting the number of stored substrates W is displayed (see FIG. 1).
- a grip 23 that functions for gripping operation is attached near the center of the outside of the right side wall 2c and the left side wall 2d of the container body 2.
- a plurality of paired left and right support pieces 21 for horizontally supporting the substrate W to be stored are provided inside the right side wall 2c and the left side wall 2d of the container main body 2, respectively, and inside the right side wall 2c and the left side wall 2d.
- position restricting portions 22 that restrict the insertion position of the substrate W when the substrate W is inserted toward the rear B are provided.
- the pair of left and right support pieces 21 are arranged at a predetermined pitch in the vertical direction, and each support piece 21 is formed in an elongated plate shape that supports the periphery of the substrate W.
- the support piece 21 is provided so that 25 substrates W can be supported, but the maximum number of substrates W that can be stored is not limited to 25.
- the substrates W are stored in the container main body 2 in a full state as necessary, or a smaller number than the full state is stored, or the storage position is changed.
- the state varies depending on how the substrate storage container 1 is used. For example, a plurality of substrates W may be stored in an upward or downward direction, or stored alternately.
- a top flange 25 such as a robotic flange is attached to the outside of the top surface 2e of the container body 2.
- the top flange 25 is, for example, gripped by an overhead transport vehicle in a semiconductor manufacturing factory and transported between processes, or used for positioning in a lid opening / closing device such as a semiconductor processing apparatus.
- a bottom plate 26 for positioning and placing the container body 2 is attached to the outside of the bottom surface 2f of the container body 2.
- Accessories such as the container body 2 and the lid body 4, and the grip 23, the top flange 25, and the bottom plate 26 are injection-molded with a molding material containing a required resin, or a combination of a plurality of injection-molded parts. Or configured.
- 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.
- various antistatic agents such as conductive substances such as carbon fibers, carbon powder, carbon nanotubes, conductive polymers and the like, anions, cations, and nonionics are added as necessary.
- an ultraviolet absorber or a reinforcing fiber for improving rigidity is added as necessary.
- the container body 2, the lid body 4, the grip 23, the top flange 25, and the bottom plate 26 may be transparent, opaque, or translucent, but the container body 2 and the lid body 4 are preferably transparent.
- FIG. 5 is a perspective view of the gas replacement unit of the first embodiment
- FIG. 6 is an exploded perspective view of the gas replacement unit of the first embodiment
- FIG. 7 is the (a) front view of the gas substitution unit of 1st Embodiment, (b) Top view, (c) Bottom view, (d) Back view. 8 is a cross-sectional view of the gas replacement unit according to the first embodiment, taken along line AA in FIG. 5 to 8 show the gas replacement unit 3R on the right side when viewed from the front F.
- FIG. 5 is a perspective view of the gas replacement unit of the first embodiment
- FIG. 6 is an exploded
- the gas replacement units 3R and 3L replace the internal space of the container main body 2 with the gas G, and the rear B of the container main body 2 (the rear wall 2b or the rear wall 2b or the like so as not to interfere with the substrate W even when the substrate W is inserted). It is provided on both the left and right sides in the vicinity of the protruding portion) with the longitudinal direction being vertical (see FIGS. 1 and 2).
- These gas replacement units 3R and 3L blow out the gas G into the internal space of the container body 2.
- the gas G to be blown out include inert gas and dry air.
- examples of the inert gas include nitrogen gas and argon gas, but nitrogen gas is preferable from the viewpoint of cost.
- three supply valves 50 and one exhaust valve 60 are provided on the bottom surface 2 f of the container body 2.
- the supply valve 50 and the exhaust valve 60 suppress the deterioration of the surface of the stored substrate W by flowing the gas G from the outside of the substrate storage container 1 to the internal space or from the internal space to the outside. It functions to eliminate the pressure difference between the internal space of the storage container 1 and the outside.
- the two air supply valves 50 are provided on both the left and right sides of the rear B of the bottom surface 2f. And the lower part of gas replacement unit 3R, 3L is connected to these two air supply valves 50 so that the gas G may distribute
- one supply valve 50 and one exhaust valve 60 are provided on the left or right side of the bottom surface 2f near the front face F.
- the air supply valve 50 includes a grommet 50a attached to a recess formed in the bottom surface 2f of the container body 2, a filter member 51 having air permeability attached to an end of the grommet 50a, and a check valve 52. (See FIG. 12).
- the grommet 50a is formed of an elastic resin member such as an elastomer.
- the filter member 51 filters the supplied gas G to remove dust, and a nonwoven fabric filter or the like is used.
- the check valve 52 is urged by a coil spring 53 in the direction of closing the valve and is accommodated in the valve housing 54 (see FIG. 12).
- the exhaust valve 60 has a check valve (not shown) and, for example, a humidity (or concentration) sensor is attached to replace the internal space of the substrate storage container 1 with the gas G, and then the substrate storage container 1
- the humidity (or concentration) of the internal space can be measured, and it is possible to manage whether or not the replacement of the gas G into the internal space of the substrate storage container 1 is normally performed.
- gas replacement unit 3L has the same shape and structure except that it is symmetrical to the gas replacement unit 3R, as shown in FIG.
- the gas replacement unit 3R shown in FIG. 5 includes a housing member 31 and a cover member 32, and is formed in a substantially pentagonal column shape, but the shape is not limited thereto. Further, the gas replacement unit 3R may be formed of the same resin as the container body 2 or the like, or may be formed of a different resin.
- the housing member 31 is formed in a box shape so that one side (the direction of the rear B) is opened so as to store the gas G, and the cover member 32 forms a plate shape, and this opened surface is formed.
- the cover is attached by a locking means (engaging means) such as a claw or welding means such as ultrasonic waves (see FIG. 6).
- the housing member 31 and the cover member 32 form a space for storing the gas G.
- the housing member 31 has two surface portions 31A and 31B which intersect at a predetermined angle and have different sizes.
- the crossing angle between the surface portion 31A and the surface portion 31B is an inner angle in a range of 120 ° to 170 °.
- the area of the surface portion 31A is formed larger than the area of the surface portion 31B.
- a cylindrical connector 311 into which the gas G from the air supply valve 50 flows is provided so as to protrude from the lower surface portion 31 ⁇ / b> C of the housing member 31.
- a rotation stop projection 312 is formed to stop the rotation of the gas replacement unit 3 ⁇ / b> R in the left-right direction and position the rotation direction (see FIG. 7).
- a cylindrical positioning projection 313 for positioning and fixing to the container body 2 is formed on the upper surface portion 31D of the housing member 31.
- the housing member 31 has the surface portion 31A, the surface portion 31B, the lower surface portion 31C, and the upper surface portion 31D integrally formed, but even if at least one of the lower surface portion 31C or the upper surface portion 31D is formed separately. Good.
- the surface portion 31A of the housing member 31 has horizontally elongated substantially rectangular blow holes in the vertical direction (longitudinal direction) from the top in the first blow holes 31a, 31b, 31c,. .. 31x, 31y, 31z (hereinafter referred to as “first outlet hole group 31a-z” as necessary) are formed at 26 locations.
- the surface portion 31B of the housing member 31 has horizontally elongated blow holes, which are arranged in the vertical direction (longitudinal direction) from the top in the order of the third blow holes 33a, 33b, 33c,. As required, it is referred to as “third outlet hole group 33a-z”).
- the blowing direction of the gas G can be made different.
- the gas G easily diffuses into the internal space of the substrate storage container 1.
- the opening height of the first blowout hole 31a at the uppermost stage is slightly larger than the opening height of the first blowout hole 31b at the second stage, that is, the opening area of the first blowout hole 31a is that of the first blowout hole 31b. It is slightly larger than the opening area. Moreover, the opening area from the 1st blowing hole 31b to the 1st blowing hole 31u is all equal, and the opening area from the 1st blowing hole 31v to the 1st blowing hole 31y is gradually smaller than the opening area of the 1st blowing hole 31u. The opening area of the first blowing hole 31z is smaller than the opening area of the first blowing hole 31y. The same applies to the third outlet group 33a-z.
- the lowermost first blowout hole 31z and the third blowout hole 33z are positioned below the substrate W supported by the lowermost support piece 21 of the container body 2.
- the number of the first blowing holes 31z and the third blowing holes 33z positioned below the lowermost substrate W is not limited to one, and may be plural.
- the first blow hole group 31a-z and the third blow hole group 33a-z have the opening areas of the uppermost first blow hole 31a and the third blow hole 33a increased, Even if the space formed between the substrate W and the inner surface of the top surface 2e of the container body 2 is larger than the space formed between the substrate W at the other stage and the substrate W at the adjacent stage, Since the air volume of the gas G blown out from the uppermost first blowout hole 31a increases, the humidity or concentration of the gas G in the space above the substrate W does not vary depending on the position (stage) of the substrate W. It becomes a uniform state.
- the first blow hole group 31a-z and the third blow holes 33a-z have a large opening area on the lower side, even if the straightness of the gas G supplied from below is high, The gas G is uniformly blown out from below to above the hole group 31a-z and the third blowing holes 33a-z. Further, since the first blow hole 31z and the third blow hole 33z are also formed under the lowermost substrate W, the gas G is also blown between the lowermost substrate W and the bottom surface 2f. Even if the downflow air in the clean room enters the inside from the opening of the front face F of the container body 2, the gas G blown out from the upper face of the bottom face 2f toward the front face F does not flow more than necessary.
- the cover member 32 has substantially rectangular or square blow holes in the vertical direction (longitudinal direction) in order from the top, the second blow holes 32a, 32b, 32e, 32f (hereinafter referred to as “second outlet hole group 32a-f” as necessary) are formed at six locations.
- the height position of the uppermost second blowing hole 32a is substantially the same as the height position of the first blowing hole 31c, and hereinafter, the second blowing hole 32b and the first blowing hole 31h are referred to as the second blowing hole 32c.
- the first blow hole 31m, the second blow hole 32d and the first blow hole 31s, the second blow hole 32e and the first blow hole 31w, the second blow hole 32f and the first blow hole 31y They are almost the same height and match.
- the ratio of the total opening areas S1, S2, and S3 of the first blowing hole group 31a-z, the second blowing hole group 32a-f, and the third blowing hole group 33a-z is stored in the container body 2. Further, it is possible to adjust the humidity variation among the plurality of substrates W to be smaller.
- the adjustment of the opening area can be achieved by preparing the housing member 31 and the cover member 32 having different outlet holes of the first outlet hole group 31a-z, the second outlet hole group 32a-f, and the third outlet hole group 33a-z. It can be carried out by closing an appropriate outlet hole.
- the gas replacement units 3R and 3L are provided on the left and right sides of the rear B (near the rear wall 2b or the protruding portion) of the container body 2 as described above, the blown out gas G is stored in the substrate.
- the air is basically blown out from the first blow hole group 31a-z and the third blow hole group 33a-z toward the front F side, and the air is replaced with the gas G. It will be.
- air also exists in the vicinity of the right side wall 2c or the left side wall 2d from the rear wall 2b on the rear B side from the position where the first outlet group 31a-z and the third outlet group 33a-z are provided. Therefore, it is better to blow out the gas G from the second blowing hole group 32a-f toward the rear B.
- the space on the front side F from the position where the first outlet hole group 31a-z and the third outlet hole group 33a-z are provided is the first outlet hole group 31a-z and the third outlet hole group 33a-z. Is considerably larger than the space on the rear B side than the position where is provided, the total opening area S1 of the first blowing hole group 31a-z facing the front F side and the total opening area of the third blowing hole group 33a-z S3 is preferably larger than the total opening area S2 of the second outlet group 32a-f facing the rear B side.
- the gas replacement units 3R and 3L basically blow out the gas G toward the front F side.
- the gas replacement units 3R and 3L are provided near the right side wall 2c or the left side wall 2d, the right side wall 2c or the left side wall 2d is provided.
- the gas G heading toward the front surface F along the line may be small, but conversely, the gas G heading toward the center of the container body 2 should be large. Therefore, the total opening area S1 of the first blowing hole group 31a-z is preferably larger than the total opening area S2 of the third blowing hole group 33a-z.
- a filter member 34 having air permeability is provided inside the housing member 31, and a filter member 35 having air permeability is also provided inside the cover member 32.
- Examples of the filter members 34 and 35 include a nonwoven fabric filter.
- the gas G introduced from the cylindrical connector 311 is introduced and stored in a space formed by the housing member 31 and the cover member 32.
- the stored gas G is passed through the filter members 34 and 35 into the internal space of the container body 2 from the first blow hole group 31a-z, the second blow hole group 32a-f, and the third blow hole group 33a-z. Be blown out.
- FIG. 9A is a schematic front view of the container body
- FIG. 9B is an enlarged perspective view of the gas replacement unit upper mounting portion
- FIG. 9C is an enlarged perspective view of the gas replacement unit lower mounting portion.
- FIG. 10 is an enlarged perspective view of the upper mounting portion of the gas replacement unit.
- 11A is an enlarged view of the lower mounting portion of the gas replacement unit, and FIG.
- the gas replacement unit 3 ⁇ / b> R is attached to the container body 2 by a positioning and fixing member 8 and an offset member 9. Specifically, the upper part of the gas replacement unit 3R is attached to the positioning fixing member 8, and the lower part of the gas replacement unit 3R is attached to the offset member 9.
- a circular through hole 27 is formed on both the left and right sides of the back wall 2b of the container body 2 in order to fix the positioning fixing member 8, and a stopper 28 is formed above the through hole 27.
- attachment holes 29 are formed on the left and right sides of the bottom surface 2 f of the container body 2 in order to fix the offset member 9.
- the mounting hole 29 is not circular but is formed in a substantially elliptical shape connecting a large circle and a small circle.
- the positioning and fixing member 8 shown in FIG. 10 has an elongated shape, and is formed of a shaft having one end side substantially plate-like and the other end side rectangular. Around this shaft, three disc-shaped flanges 81, 82, 83 are formed toward the other end side.
- the shaft end flange 83 and the intermediate flange 82 are formed smaller than the diameter of the through hole 27 in the back wall 2 b and are inserted into the through hole 27.
- a small-diameter step portion is formed on the intermediate flange 82, and an O-ring 84A is fitted therein.
- a small-diameter stepped portion is also formed on the inner flange 81, and an O-ring 84B is fitted therein.
- the inner flange 81 and the O-ring 84 ⁇ / b> B are formed larger than the diameter of the through-hole 27. Since 84B is sandwiched, the gas G does not leak.
- a C-ring 85 is formed on the rectangular shaft located between the shaft-end flange 83 and the container body 2 with a rectangular inner side and an outer diameter larger than the through-hole 27.
- the positioning fixing member 8 is fixed to the container body 2 through the through hole 27.
- the sealing performance is enhanced by inserting the C-ring 85 while the O-ring 84B is crushed between the flange 81 and the container body 2 while pulling the flange 83 at the shaft end outward.
- one end side of the positioning and fixing member 8 is formed in a plate shape bent upward and has an elongated slit 86 formed therein.
- the positioning projection 313 and the stopper 28 of the housing member 31 are fitted into the slit 86.
- the end portion 87 is further curved upward, and a U-shaped notch 88 is formed at the distal end thereof.
- the offset member 9 shown in FIG. 11 is formed such that a gap through which the gas G flows is formed between the offset plate press 90 positioned inside the bottom surface 2f and the offset plate 95 positioned outside the bottom surface 2f. , And assembled through an O-ring 94 (see FIG. 12).
- the offset plate holder 90 is formed with a recess 92 into which the rotation projection 312 of the housing member 31 is fitted.
- the rotation projection 312 is fitted into the recess 92 so that the direction of the rotating gas replacement unit 3R and The position is determined.
- an insertion hole 96 into which the connector 311 of the gas replacement unit 3R is inserted is formed in the offset plate holder 90, and the connector 311 is inserted through the packing 93.
- the offset plate holder 90 is fitted into the mounting hole 29 via an O-ring 91 (see FIG. 12).
- the offset plate 95 has a recess into which the air supply valve 50 is fitted so that the center of the air supply valve 50 is located at a position shifted from the center position of the packing 93 in plan view (see FIG. 12). .
- the lower connector 311 is attached to the offset member 9, and then the upper positioning protrusion 313 is attached to the positioning fixing member 8 and attached to the container body 2.
- the positioning protrusion 313 at the upper part of the gas replacement unit 3R is pushed from the end 87 side toward the slit 86 from the state in which the lower connector 311 of the gas replacement unit 3R is inserted into the packing 93 and tilted.
- the positioning fixing member 8 is curved, and the positioning projection 313 is fitted into the slit 86.
- the positioning projection 313 also comes into contact with the stopper 28, whereby the position in the slit 86 is determined, and the upper portion of the gas replacement unit 3R is positioned and fixed.
- FIG. 12 is a cross-sectional perspective view showing the flow of gas flowing in from the air supply valve.
- the flow of gas G is indicated by arrows.
- the gas G introduced at high pressure from the air supply valve 50 passes through the filter member 51, flows through the gap between the offset plate press 90 and the offset plate 95, and the rear B offset plate press 90 and the gas replacement unit. It heads for a connection part with the connection tool 311 of the lower part of 3R.
- the gas G is blown out from the first blowing hole group 31a-z, the third blowing hole group 33a-z, and the second blowing hole group 32a-f while proceeding through the storage space of the gas replacement unit 3R (see FIG. 8).
- the gas G is blown out in three different directions, that is, the direction toward the center on the front F side and the direction toward the right side wall 2c, and the direction toward the rear side wall 2b on the rear B side (see FIG. 4).
- the extending direction of the blowout opening of the first blowout hole group 31a-z or the third blowout hole group 33a-z that is, the surface portion 31A on which the first blowout hole group 31a-z or the third blowout hole group 33a-z is formed or It is preferable that the normal passing through the center of the surface portion 31B is a range that reaches the opening of the front opening frame 2a of the container body 2 without intersecting the right side wall 2c or the left side wall 2d. More preferably, in the case of the gas replacement unit 3R, the normal line of the surface portion 31A is in the range of 10 ° to 40 ° with respect to the normal line NL (perpendicular line) from the opening of the front opening frame 2a of the container body 2.
- the normal line of 31B is a range from 5 ° on the central side to 10 ° on the right side wall 2c across the normal NL (perpendicular line) from the opening of the front opening frame 2a of the container body 2.
- the gas replacement unit 3L is symmetrical with the gas replacement unit 3R.
- the surface portion 31A and the surface portion 31B (or the first blowing hole group 31a-z and the third blowing hole group 33a-z) are formed so as to be in such a range, and the gas replacement units 3R and 3L are connected to the container body 2.
- the gas G blown out from each blowing hole does not collide with and reflect on the right side wall 2c or the left side wall 2d of the container body 2. For this reason, since the turbulence of the gas G does not occur, the internal space of the container body 2 can be quickly and reliably replaced with the gas G.
- the substrate storage container 1 includes the container main body 2 that can store a plurality of substrates W, and the air supply valve that supplies the gas G from the outside of the container main body 2 to the internal space. 50 and gas replacement units 3R and 3L for blowing the gas G supplied from the air supply valve 50 to the internal space of the container main body 2, the container main body 2 is formed in a front open box, and the rear B of the bottom surface 2f
- the gas exchange units 3R and 3L are provided with a housing member 31 that stores the gas G supplied from the air supply valve 50 and a cover that covers the opening of the housing member 31.
- the member 32 the opening of the housing member 31 is directed in the rear B direction of the container body 2, and the lower portion of the housing member 31 is connected to the air supply valve 30, and the housing member 31
- a plurality of first blowout holes 31a, 31b, 31c... 31x, 31y, 31z blown in the front F direction of the main body 2 are provided, and the cover member 32 is provided with the first blowout holes 31a, 31b, 31c. It has the 2nd blowing holes 32a, 32b, 32c, 32d, 32e, 32f which blow off in the backward direction opposite to the blowing direction of 31x, 31y, 31z.
- the gas G blown out from the first blowing hole group 31a-z of the gas replacement units 3R and 3L flows from the vicinity of the center of the container body 2 toward the front F direction, and blown out from the second blowing hole group 32a-f.
- the gas G collides with the back wall 2b of the container body 2, is divided into left and right and up and down, flows in the gap between the container body 2 and the gas replacement units 3R and 3L, and flows toward the front F direction. Therefore, even when the storage state of the substrate W changes, it is possible to provide the substrate storage container 1 with less variation in humidity or concentration between the substrates W.
- At least one of the gas replacement units 3R and 3L blows out the gas G in three different directions.
- the gas replacement units 3R and 3L in addition to the central direction of the container body 2 and the direction of the back wall 2b, emit the gas G in the front F direction along the right side wall 2c or the left side wall 2d. Since it has 33a-z, the gas G can be blown into the entire internal space of the container body 2.
- At least one of the upper part or the central part of the housing member 31 is positioned and fixed using the through hole 27 formed in the back wall 2b of the container body 2.
- the gas replacement units 3R and 3L are attached using the positioning fixing member 8 that can be easily attached to and detached from the through hole 27, the gas replacement units 3R and 3L can be easily attached or detached from the container body 2.
- the gas replacement units 3R and 3L can be easily removed, and the interior of the container body 2 can be cleaned to every corner. Further, the removed gas replacement units 3R and 3L can be easily cleaned.
- At least one of the first blowout hole groups 31a-z is positioned below the lowermost substrate W stored in the container body 2.
- the gas G can be made to flow evenly under the lowermost substrate W. Therefore, even when the storage state of the substrate W changes, it is possible to provide the substrate storage container 1 with less variation in humidity between the substrates W.
- the gas replacement units 3R and 3L include filter members 34 and 35 having air permeability inside the housing member 31 and the cover member 32. Thereby, even if dust is contained in the supplied gas G, since it captures with the filter members 34 and 35, it does not blow into the container main body 2, and the internal space of the substrate storage container 1 is contaminated. There is no.
- the gas G is nitrogen gas or dry air.
- the substrate storage container 1 of the second embodiment is the same as the substrate storage container 1 of the first embodiment except that the gas replacement units 3R and 3L are different from the gas replacement units 3R and 3L of the first embodiment.
- description is abbreviate
- FIG. 13 is a perspective view of the gas replacement unit of the second embodiment
- FIG. 14 is an exploded perspective view of the gas replacement unit of the second embodiment.
- FIG. 15 is the (a) front view of the gas substitution unit of 1st Embodiment, (b) Top view, (c) Bottom view, (d) Back view. 13 and 14 show the gas replacement unit 3R on the right side when viewed from the front F.
- the gas replacement unit 3L has the same shape and structure except that the gas replacement unit 3L is symmetrical to the gas replacement unit 3R.
- the gas replacement unit 3R shown in FIG. 13 includes a housing member 31 and a cover member 32 and is formed in a substantially pentagonal column shape, the shape is not limited to this. Further, the gas replacement unit 3R may be formed of the same resin as the container body 2 or the like, or may be formed of a different resin.
- the housing member 31 is formed in a box shape having a surface opened on one side (the direction of the front face F), and the cover member 32 is provided with a locking means (engagement means) such as a claw so as to cover the opened surface. ) Or ultrasonic welding means (see FIG. 14).
- the housing member 31 and the cover member 32 form a space for storing the gas G.
- the cover member 32 is formed in an L-shaped plate shape having two surface portions 31A and 31B which intersect at a predetermined angle and have different sizes (see FIG. 14).
- the crossing angle between the surface portion 31A and the surface portion 31B is an inner angle in a range of 120 ° to 170 °.
- the area of the surface portion 31A is formed larger than the area of the surface portion 31B.
- the first blowing holes 31a, 31b, 31c... 31x, 31y, 31z and the third blowing holes 33a, 33b, 33c, respectively. ... 33x, 33y, 33z are formed.
- a cylindrical connector 311 into which the gas G from the air supply valve 50 flows is provided so as to protrude from the lower surface portion 31C of the housing member 31.
- a rotation stop projection 312 is formed to stop the rotation of the gas replacement unit 3 ⁇ / b> R in the left-right direction and position the rotation direction (see FIG. 15).
- a cylindrical positioning projection 313 for positioning and fixing to the container body 2 is formed on the upper surface portion 31D of the housing member 31.
- connection tool 311, the rotation stop projection 312, and the positioning protrusion 313 of the second embodiment have the same functions as the connection tool 311, rotation stop protrusion 312, and positioning protrusion 313 of the first embodiment.
- the main body part 31E of the housing member 31 has substantially rectangular or square blow holes, which are arranged in the vertical direction (longitudinal direction) from the top in the second blow holes 32a, 32b,. It is formed at six locations as 32e and 32f.
- the height position of the uppermost second blowing hole 32a is substantially the same as the height position of the first blowing hole 31c, and hereinafter, the second blowing hole 32b and the first blowing hole 31h are referred to as the second blowing hole 32c.
- the first blow hole 31m, the second blow hole 32d and the first blow hole 31s, the second blow hole 32e and the first blow hole 31w, the second blow hole 32f and the first blow hole 31y They are almost the same height and match.
- the lower surface portion 31C, the upper surface portion 31D, and the main body portion 32E are integrally formed in the housing member 31, but at least one of the lower surface portion 31C or the upper surface portion 31D may be formed separately.
- the opening area, quantity, and arrangement of the first blow hole group 31a-z, the third blow hole group 33a-z, and the second blow hole 32a-f are not limited to the above embodiment. Instead, the lower blown air volume may be increased so that the air can be opposed from the outside such as downflow air blown along the upper surface of the bottom surface 2f.
- the ratio of the blown air volume in the front F direction and the rear B direction may be adjusted by selectively closing or additionally drilling the second blow hole group 32a-f.
- the direction of the gas replacement units 3R and 3L may be changed by changing the position of the recess 12 of the offset member 9. Or you may change the crossing angle of the two surface parts 31A and 31B of the housing member 31, or change an area, and may adjust the ratio of the blowing direction and / or the amount of blowing air. These changes can be dealt with by using nesting in the molding die.
- the housing member 31 may be positioned and fixed at the central portion instead of the upper portion, or may be positioned and fixed at the upper portion and the central portion. At this time, the position of the through hole 27 formed in the back wall 2b is appropriately changed, and the shape of the positioning fixing member 8 is also appropriately changed.
- gas replacement units 3R and 3L in addition to the gas replacement units 3R and 3L, a plurality of other gas replacement units may be provided, or conversely, any one of the gas replacement units 3R or 3L may be provided.
- the gas replacement units 3R and 3L are not limited to the left and right two locations on the rear B, and may be disposed in any region that does not interfere with the substrate W at the center of the rear B.
- Substrate storage container 2 Container main body, 2a Front opening frame, 2b Back wall, 2c Right side wall, 2d Left side wall, 2e Top surface, 2f Bottom surface 21 Support piece 22 Position control part 23 Grip 25 Top flange 26 Bottom plate 27 Through-hole 28 Stopper 29 Mounting hole 3R, 3L Gas replacement unit 31 Housing member, 31A, 31B Surface portion, 31C Lower surface portion, 31D Upper surface portion, 31E Main body portion, 311 Connector, 312 Non-rotating projection, 313 Positioning projection 32 Cover member 31a ... 31z 1st blowing hole 32a ... 32f 2nd blowing hole 33a ...
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Abstract
Description
(2)本発明に係る別の1つの態様は、複数枚の基板を収納可能な容器本体と、前記容器本体の外部から内部空間に気体を供給する給気弁と、前記給気弁から供給された前記気体を前記容器本体の内部空間に吹出す気体置換ユニットと、を備え、前記容器本体をフロントオープンボックスに形成し、底面の後方に前記給気弁を取付けた基板収納容器であって、前記気体置換ユニットは、前記給気弁から供給された前記気体を貯留するハウジング部材と、前記ハウジング部材の開口を覆うカバー部材と、を含み、前記ハウジング部材の前記開口を前記容器本体の正面方向に向けるとともに、前記ハウジング部材の下部を前記給気弁に接続し、前記カバー部材は、貯留された前記気体を前記容器本体の正面方向に吹出す複数の第1吹出孔を有し、前記ハウジング部材は、前記第1吹出孔の吹出方向と反対の後方方向に吹出す第2吹出孔を有するものである。
(3)上記(1)又は(2)までの態様において、前記気体置換ユニットの少なくとも1つは、前記気体を異なる3方向に吹出してもよい。
(4)上記(1)から(3)までのいずれか1つの態様において、前記ハウジング部材の上部又は中央部の少なくとも一方が、前記容器本体の背面壁に形成された貫通孔を用いて位置決め固定されてもよい。
(5)上記(1)から(4)までのいずれか1つの態様において、前記第1吹出孔の少なくとも1つは、前記容器本体に収納された最下段の前記基板よりも下方に位置してもよい。
(6)上記(1)から(5)までのいずれか1つの態様において、前記気体置換ユニットは、前記ハウジング部材及び前記カバー部材の内側に通気性を有するフィルタ部材を含んでもよい。
(7)上記(1)から(6)までのいずれか1つの態様において、前記気体は、窒素ガス又はドライエアであってもよい。
(8)本発明に係る別の1つの態様は、複数枚の基板を収納可能な容器本体と、前記容器本体の外部から内部空間に気体を供給する給気弁と、を備え、前記容器本体の底面の後方に前記給気弁を取付けた基板収納容器用の気体置換ユニットであって、前記給気弁から供給された前記気体を貯留するハウジング部材と、前記ハウジング部材の開口を覆うカバー部材と、を含み、前記ハウジング部材の前記開口を前記容器本体の後方方向に向けるとともに、前記ハウジング部材の下部を前記給気弁に接続し、前記ハウジング部材は、貯留された前記気体を前記容器本体の正面方向に吹出す複数の第1吹出孔を有し、前記カバー部材は、前記第1吹出孔の吹出方向と反対の後方方向に吹出す第2吹出孔を有するものである。
(9)本発明に係る別の1つの態様は、複数枚の基板を収納可能な容器本体と、前記容器本体の外部から内部空間に気体を供給する給気弁と、を備え、前記容器本体の底面の後方に前記給気弁を取付けた基板収納容器用の気体置換ユニットであって、前記給気弁から供給された前記気体を貯留するハウジング部材と、前記ハウジング部材の開口を覆うカバー部材と、を含み、前記ハウジング部材の前記開口を前記容器本体の正面方向に向けるとともに、前記ハウジング部材の下部を前記給気弁に接続し、前記カバー部材は、貯留された前記気体を前記容器本体の正面方向に吹出す複数の第1吹出孔を有し、前記ハウジング部材は、前記第1吹出孔の吹出方向と反対の後方方向に吹出す第2吹出孔を有するものである。
第1実施形態の基板収納容器1について説明する。図1は、本発明の第1実施形態に係る基板収納容器の分解斜視図である。図2は、容器本体の正面図であり、図3は、容器本体の底面図であり、図4は、容器本体の断面平面図である。
図1に示される基板収納容器1は、複数枚の基板Wを収納する容器本体2と、この容器本体2の開口に着脱自在に装着される蓋体4と、を備えている。基板収納容器1に収納される基板Wとしては、直径が300mmや450mmの半導体ウェーハ、マスクガラスなどが挙げられる。
図12において、給気弁50から高圧で導入された気体Gは、フィルタ部材51を通過し、オフセットプレート押さえ90とオフセットプレート95との隙間を流れ、後方Bのオフセットプレート押さえ90と気体置換ユニット3Rの下部の接続具311との接続部に向かう。
以下、第2実施形態の基板収納容器1について説明する。
第2実施形態の基板収納容器1では、気体置換ユニット3R,3Lが第1実施形態の気体置換ユニット3R,3Lと異なる点を除いて、第1実施形態の基板収納容器1と同様である。このため、第2実施形態では、第1実施形態と同様の点については、説明を省略し、第1実施形態と主に異なる点(気体置換ユニット3R,3L)について説明する。
上記実施形態の気体置換ユニット3R,3Lにおいて、第1吹出孔群31a-z、第3吹出孔群33a-z及び第2吹出孔32a-fの開口面積や数量や配置も上記実施形態に限らず、底面2fの上面に沿って吹き込むダウンフローエアなどの外部からエアに対向できるように、下方の吹出風量を増やすように構成してもよい。
2 容器本体、2a 正面開口枠、2b 背面壁、2c 右側壁、2d 左側壁、2e 天面、2f 底面
21 支持片
22 位置規制部
23 グリップ
25 トップフランジ
26 ボトムプレート
27 貫通孔
28 ストッパ
29 取付孔
3R,3L 気体置換ユニット
31 ハウジング部材、31A,31B 面部、31C 下面部、31D 上面部、31E 本体部、311 接続具、312 回止め突起、313 位置決め突起
32 カバー部材
31a・・・31z 第1吹出孔
32a・・・32f 第2吹出孔
33a・・・33z 第3吹出孔
34,35 フィルタ部材
4 蓋体
50 給気弁、50a グロメット、51 フィルタ部材、52 逆止弁、53 コイルバネ、54 バルブハウジング
60 排気弁
8 位置決め固定部材
81,82,83 フランジ
84A,84B Oリング
85 Cリング
86 スリット
87 端部
88 切欠き
9 オフセット部材
90 オフセットプレート押さえ
91 Oリング
92 凹部
93 パッキン
94 Oリング
95 オフセットプレート
96 差込孔
F 正面
B 後方
G 気体
W 基板
NL 法線
Claims (9)
- 複数枚の基板を収納可能な容器本体と、
前記容器本体の外部から内部空間に気体を供給する給気弁と、
前記給気弁から供給された前記気体を前記容器本体の内部空間に吹出す気体置換ユニットと、を備え、
前記容器本体をフロントオープンボックスに形成し、底面の後方に前記給気弁を取付けた基板収納容器であって、
前記気体置換ユニットは、
前記給気弁から供給された前記気体を貯留するハウジング部材と、
前記ハウジング部材の開口を覆うカバー部材と、を含み、
前記ハウジング部材の前記開口を前記容器本体の後方方向に向けるとともに、前記ハウジング部材の下部を前記給気弁に接続し、
前記ハウジング部材は、貯留された前記気体を前記容器本体の正面方向に吹出す複数の第1吹出孔を有し、
前記カバー部材は、前記第1吹出孔の吹出方向と反対の後方方向に吹出す第2吹出孔を有する、
ことを特徴とする基板収納容器。 - 複数枚の基板を収納可能な容器本体と、
前記容器本体の外部から内部空間に気体を供給する給気弁と、
前記給気弁から供給された前記気体を前記容器本体の内部空間に吹出す気体置換ユニットと、を備え、
前記容器本体をフロントオープンボックスに形成し、底面の後方に前記給気弁を取付けた基板収納容器であって、
前記気体置換ユニットは、
前記給気弁から供給された前記気体を貯留するハウジング部材と、
前記ハウジング部材の開口を覆うカバー部材と、を含み、
前記ハウジング部材の前記開口を前記容器本体の正面方向に向けるとともに、前記ハウジング部材の下部を前記給気弁に接続し、
前記カバー部材は、貯留された前記気体を前記容器本体の正面方向に吹出す複数の第1吹出孔を有し、
前記ハウジング部材は、前記第1吹出孔の吹出方向と反対の後方方向に吹出す第2吹出孔を有する、
ことを特徴とする基板収納容器。 - 前記気体置換ユニットの少なくとも1つは、前記気体を異なる3方向に吹出す
ことを特徴とする請求項1又は2に記載の基板収納容器。 - 前記ハウジング部材の上部又は中央部の少なくとも一方が、前記容器本体の背面壁に形成された貫通孔を用いて位置決め固定される
ことを特徴とする請求項1から3までのいずれか1項に記載の基板収納容器。 - 前記第1吹出孔の少なくとも1つは、前記容器本体に収納された最下段の前記基板よりも下方に位置する
ことを特徴とする請求項1から4までのいずれか1項に記載の基板収納容器。 - 前記気体置換ユニットは、前記ハウジング部材及び前記カバー部材の内側に通気性を有するフィルタ部材を含む
ことを特徴とする請求項1から5までのいずれか1項に記載の基板収納容器。 - 前記気体は、窒素ガス又はドライエアである
ことを特徴とする請求項1から6までのいずれか1項に記載の基板収納容器。 - 複数枚の基板を収納可能な容器本体と、
前記容器本体の外部から内部空間に気体を供給する給気弁と、を備え、
前記容器本体の底面の後方に前記給気弁を取付けた基板収納容器用の気体置換ユニットであって、
前記給気弁から供給された前記気体を貯留するハウジング部材と、
前記ハウジング部材の開口を覆うカバー部材と、を含み、
前記ハウジング部材の前記開口を前記容器本体の後方方向に向けるとともに、前記ハウジング部材の下部を前記給気弁に接続し、
前記ハウジング部材は、貯留された前記気体を前記容器本体の正面方向に吹出す複数の第1吹出孔を有し、
前記カバー部材は、前記第1吹出孔の吹出方向と反対の後方方向に吹出す第2吹出孔を有する、
ことを特徴とする気体置換ユニット。 - 複数枚の基板を収納可能な容器本体と、
前記容器本体の外部から内部空間に気体を供給する給気弁と、を備え、
前記容器本体の底面の後方に前記給気弁を取付けた基板収納容器用の気体置換ユニットであって、
前記給気弁から供給された前記気体を貯留するハウジング部材と、
前記ハウジング部材の開口を覆うカバー部材と、を含み、
前記ハウジング部材の前記開口を前記容器本体の正面方向に向けるとともに、前記ハウジング部材の下部を前記給気弁に接続し、
前記カバー部材は、貯留された前記気体を前記容器本体の正面方向に吹出す複数の第1吹出孔を有し、
前記ハウジング部材は、前記第1吹出孔の吹出方向と反対の後方方向に吹出す第2吹出孔を有する、
ことを特徴とする気体置換ユニット。
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
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| JP2018538304A JP6977217B2 (ja) | 2016-09-06 | 2017-08-02 | 基板収納容器及び気体置換ユニット |
| CN201780054661.4A CN109891567B (zh) | 2016-09-06 | 2017-08-02 | 基板收纳容器以及气体置换单元 |
| SG11201901884RA SG11201901884RA (en) | 2016-09-06 | 2017-08-02 | Substrate Storage Container and Gas Replacement Unit |
| DE112017004469.3T DE112017004469T5 (de) | 2016-09-06 | 2017-08-02 | Substratlagerungsbehälter bzw. Substrataufbewahrungsbehälter und Gasaustauscheinheit |
| US16/330,161 US10923373B2 (en) | 2016-09-06 | 2017-08-02 | Substrate storage container and gas replacement unit |
| KR1020197005302A KR102373746B1 (ko) | 2016-09-06 | 2017-08-02 | 기판 수납 용기 및 기체 치환 유닛 |
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| PCT/JP2017/028127 Ceased WO2018047541A1 (ja) | 2016-09-06 | 2017-08-02 | 基板収納容器及び気体置換ユニット |
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| Country | Link |
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| US (1) | US10923373B2 (ja) |
| JP (1) | JP6977217B2 (ja) |
| KR (1) | KR102373746B1 (ja) |
| CN (1) | CN109891567B (ja) |
| DE (1) | DE112017004469T5 (ja) |
| SG (1) | SG11201901884RA (ja) |
| TW (1) | TWI729199B (ja) |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20190045176A (ko) | 2019-05-02 |
| US20190189485A1 (en) | 2019-06-20 |
| TW201823119A (zh) | 2018-07-01 |
| CN109891567A (zh) | 2019-06-14 |
| TWI729199B (zh) | 2021-06-01 |
| US10923373B2 (en) | 2021-02-16 |
| SG11201901884RA (en) | 2019-04-29 |
| KR102373746B1 (ko) | 2022-03-15 |
| JPWO2018047541A1 (ja) | 2019-06-24 |
| CN109891567B (zh) | 2023-05-12 |
| JP6977217B2 (ja) | 2021-12-08 |
| DE112017004469T5 (de) | 2019-05-16 |
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