WO2006030557A1 - 複合シール材 - Google Patents
複合シール材 Download PDFInfo
- Publication number
- WO2006030557A1 WO2006030557A1 PCT/JP2005/008729 JP2005008729W WO2006030557A1 WO 2006030557 A1 WO2006030557 A1 WO 2006030557A1 JP 2005008729 W JP2005008729 W JP 2005008729W WO 2006030557 A1 WO2006030557 A1 WO 2006030557A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seal
- seal member
- groove
- sealing material
- composite
- Prior art date
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 120
- 239000003566 sealing material Substances 0.000 title claims abstract description 114
- 238000007789 sealing Methods 0.000 claims description 109
- 229920005989 resin Polymers 0.000 claims description 53
- 239000011347 resin Substances 0.000 claims description 53
- 239000000463 material Substances 0.000 claims description 41
- 229920001971 elastomer Polymers 0.000 claims description 29
- 239000005060 rubber Substances 0.000 claims description 29
- 229920003002 synthetic resin Polymers 0.000 claims description 17
- 239000000057 synthetic resin Substances 0.000 claims description 17
- 229910052731 fluorine Inorganic materials 0.000 claims description 15
- 239000011737 fluorine Substances 0.000 claims description 15
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 13
- 239000004962 Polyamide-imide Substances 0.000 claims description 9
- 229920002312 polyamide-imide Polymers 0.000 claims description 9
- 229920001721 polyimide Polymers 0.000 claims description 6
- 239000009719 polyimide resin Substances 0.000 claims description 6
- 239000004697 Polyetherimide Substances 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 5
- 229920001601 polyetherimide Polymers 0.000 claims description 5
- 235000009854 Cucurbita moschata Nutrition 0.000 claims description 4
- 235000009852 Cucurbita pepo Nutrition 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 4
- 229920001643 poly(ether ketone) Polymers 0.000 claims description 4
- 235000020354 squash Nutrition 0.000 claims description 4
- 240000001980 Cucurbita pepo Species 0.000 claims 2
- 229920013716 polyethylene resin Polymers 0.000 claims 1
- 229920005672 polyolefin resin Polymers 0.000 claims 1
- 239000002923 metal particle Substances 0.000 abstract description 4
- 210000002381 plasma Anatomy 0.000 description 70
- 239000007789 gas Substances 0.000 description 32
- 238000004519 manufacturing process Methods 0.000 description 25
- 239000004065 semiconductor Substances 0.000 description 18
- 229920001973 fluoroelastomer Polymers 0.000 description 11
- 229920001577 copolymer Polymers 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 230000006835 compression Effects 0.000 description 9
- 238000007906 compression Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000011156 evaluation Methods 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 6
- 238000001312 dry etching Methods 0.000 description 6
- 230000013011 mating Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 238000005304 joining Methods 0.000 description 5
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 5
- 239000004734 Polyphenylene sulfide Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 description 4
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000001307 helium Substances 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229920003051 synthetic elastomer Polymers 0.000 description 3
- 239000005061 synthetic rubber Substances 0.000 description 3
- 240000004244 Cucurbita moschata Species 0.000 description 2
- 239000004693 Polybenzimidazole Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920002480 polybenzimidazole Polymers 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- NDMMKOCNFSTXRU-UHFFFAOYSA-N 1,1,2,3,3-pentafluoroprop-1-ene Chemical group FC(F)C(F)=C(F)F NDMMKOCNFSTXRU-UHFFFAOYSA-N 0.000 description 1
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 description 1
- 241000282693 Cercopithecidae Species 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000131 polyvinylidene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000003011 styrenyl group Chemical class [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/166—Sealings between relatively-moving surfaces with means to prevent the extrusion of the packing
Definitions
- the present invention relates to a composite sealing material used in a vacuum or ultra-vacuum state, for example, a composite sealing material used in a semiconductor manufacturing apparatus such as a dry etching apparatus or a CVD apparatus.
- sealing materials used in semiconductor manufacturing equipment such as dry etching equipment and plasma CVD equipment need vacuum sealing performance as a basic performance.
- performance such as plasma resistance and corrosion gas resistance.
- fluorine rubber that is not easily affected by fluid has been used in a seal portion that is required to have plasma resistance and corrosion gas resistance in addition to such vacuum sealing performance.
- fluororubber has insufficient performance such as plasma resistance and corrosion gas resistance, resulting in a decrease in sealing performance.
- new materials have been required. ! /
- Patent Document 1 Japanese Patent Laid-Open No. 49-17868
- Patent Document 2 Japanese Patent Laid-Open No. 11 2328
- Patent Document 3 Japanese Patent Laid-Open No. 8-193659
- Patent Document 4 Japanese Patent Application Laid-Open No. 2001-124213
- a rubber and a resin are combined to maintain a sealing performance by the elasticity of the rubber, and a corrosive fluid by a resin or a metal is used. A way to prevent it has been proposed.
- Patent Document 1 JP-A-49-17868
- Patent Document 2 Japanese Patent Laid-Open No. 11 2328
- Patent Document 3 Japanese Patent Laid-Open No. 8-193659
- Patent Document 4 Japanese Patent Laid-Open No. 2001-124213
- the seal member 100 of Patent Document 1 has a force such as a rubber-elastic O-ring member 102 and a tetrafluorinated styrene resin attached to the outer periphery of the O-ring member 102. And an outer peripheral ring member 104 having a substantially C-shaped cross section.
- the seal member 106 of Patent Document 2 has a resistance to the surface of the O-ring 108 that also has a synthetic rubber force, such as an annular fluorine resin, at least on the surface side that provides a highly reactive atmosphere.
- the member 110 that also has corrosive material strength is arranged, and the other parts are made of synthetic rubber.
- the sealing member 112 of Patent Document 3 has portions other than the upper and lower contact surfaces of the O-ring 114 made of fluorine rubber or the like, such as aluminum having a substantially C-shaped cross section.
- the metal member 116 is covered.
- the seal member 112 of Patent Document 3 includes the metal member 116 such as substantially C-shaped aluminum, metal particles are generated during use, and the semiconductor is contaminated during semiconductor manufacturing. As a result, the quality will deteriorate.
- the seal member 118 of Patent Document 4 includes a first seal material 120 that also has a fluororubber strength and a second seal that is made of a harder material such as fluorine resin.
- the member 122 and the member 122 are integrally joined by a joint portion 124 having a concave-convex fitting shape.
- the sealing member 118 of Patent Document 4 has a very complicated shape in which the joining portion 124 of rubber and other grease is difficult to manufacture, and the cost is low. Expensive I will end up.
- a first seal member 126 that also has a fluororubber strength and a second seal member 128 that is made of a fluorine resin that is a harder material.
- a sealing material 134 is disclosed in which straight end faces 130 and 132 are joined together.
- Seal groove force The width of the bottom side of the seal groove and the width of the opening side of the seal groove are substantially the same.
- the force is a seal groove having a substantially rectangular cross section, or the seal groove 136 conforms to the shape of the seal member 134.
- the present invention has performances such as vacuum sealing performance, plasma resistance, and corrosion gas resistance, and the vacuum sealing performance decreases even after repeated use. It is an object of the present invention to provide a composite sealing material which is easy to manufacture and can be manufactured at low cost without generating metal particles during use.
- the present invention provides a seal groove having a special shape which is a seal groove having a shape in which the width on the bottom side of the seal groove is wider than the width on the opening side of the seal groove, which is used in a semiconductor manufacturing apparatus.
- the purpose is to provide a composite sealing material applicable to so-called “grooves”.
- the composite sealing material of the present invention is a composite sealing material to be mounted in a seal groove.
- a first seal member positioned on one side wall of the seal groove when mounted in the seal groove
- a second seal member positioned on the other side wall of the seal groove when mounted in the seal groove
- the first seal member is constituted by an elastic member force
- the second seal member force comprises a harder material force than the first seal member
- the first seal member force includes a first seal member body, and a first seal portion having a bulge portion that bulges outward from the opening of the seal groove,
- the second seal member force includes a second seal member main body, and a second seal portion located closer to the opening side of the seal groove than the second seal member main body,
- the second seal portion of the second seal member includes a second extension portion extending toward the first seal member
- the first seal member main body force comprises a first extension part extending toward the bottom part 14 side of the seal groove of the second extension part of the second seal member,
- the bulging portion of the first seal portion of the first seal member is press-contacted to provide sealing performance
- the second extending portion of the second seal member is pressed against the opening side of the seal groove through the first extending portion of the first seal member, and the upper surface of the second seal portion is pressed. It is configured to be provided with a sealing property.
- the bulging portion of the first seal portion of the first seal member is pressure-contacted to provide sealing performance.
- the second extension of the second seal member is pressed toward the opening of the seal groove via the first extension of the first seal member, and the upper surface of the second seal part, In particular, the upper end portion of the second seal portion is pressed by stress concentration to provide a sealing property.
- the second sealing member force is also made of a material harder than the first sealing member, so that the second sealing member side is, for example, a dry etching apparatus or a plasma.
- the elastic member is pressed by the upper surface of the second seal part of the second seal member.
- the bulging part of the first seal part which is the pressure-contact part of the first seal member that is constructed, will be protected by these corrosive gases, plasma, and other forces, and the sealing performance will not deteriorate. .
- the second seal member having a material force that is harder than that of the first seal member is located on the severe environment side, resistance to corrosive gas, plasma, and the like.
- the durability of the first seal member, which is the elastic member force This protects the food gas, plasma, etc. and prevents the sealing performance from deteriorating.
- first seal member configured in this way with the elastic member force and the second seal member configured with a material force harder than the first seal member are complicated as in the conventional case.
- the composite sealing material of the present invention is characterized in that the bulging portion of the first sealing portion of the first sealing member bulges in a curved shape on the opening side of the sealing groove. To do.
- the bulging portion of the first seal portion which is the pressure contact portion of the first seal member serving as the seal surface, bulges out in a planar shape, so that the sealing performance at the time of pressure contact is improved.
- the composite sealing material of the present invention is characterized in that the bottom surface force on the sealing groove side of the first sealing member body has a substantially flat shape.
- the bottom force on the seal groove side of the first seal member body is substantially flat, the contact area with the bottom of the seal groove is increased, and the composite seal material rolls during use. Thus, the effect of preventing the sealing performance from being lowered is enhanced.
- the first extension portion of the first seal member and the second extension portion of the second seal member are the bottom portion 14 of the seal groove 12. It is characterized by being in contact with a flat surface substantially parallel to the surface.
- first extending portion of the first seal member and the second extending portion of the second seal member are in contact with each other on a substantially flat surface, processing is easy.
- the first extension portion 38 of the first seal member 20 and the second extension portion 36 of the second seal member 24 include a seal groove 12. It is characterized in that it comes into contact with a tapered surface 25 whose diameter is reduced as it approaches the bottom 14 of the plate.
- the composite sealing material of the present invention is characterized in that the second sealing member main body has a bottom extending portion that extends toward the first sealing member on the bottom side on the sealing groove side. .
- the second seal member having a harder material force than the first seal member is provided on one side of the chamber, which is a severe and environmental side such as corrosive gas and plasma. Since the bottom extension of the second seal member is located between the bottom of the seal groove and the bottom of the composite seal material, the bottom of the seal groove and the composite seal material This will protect the corrosive gas, plasma, and other forces from entering between the bottom and the seal.
- the end surface on the one side wall side of the seal groove of the first seal member body gradually decreases in diameter as it approaches the bottom 14 of the seal groove 12. Tapered surface And is characterized by that.
- the first sealing member force bulges into a gap formed between the tapered surface and the side wall of the sealing groove. It is possible to prevent the seal member 1 from protruding from the opening of the seal groove and damage the first seal member to prevent the sealing performance from being deteriorated and to prevent contamination. Monkey.
- the width of the bottom side of the seal groove used in the semiconductor manufacturing apparatus is wider than the width of the seal groove on the opening side.
- a composite seal material can be installed along this tapered surface, facilitating installation work.
- the composite sealing material of the present invention is a groove-like sealing groove having a width wider than the width of the opening side of the sealing force of the sealing groove. And Therefore, there is a specially shaped seal groove, V, a loose seal, which is a seal groove with a width on the bottom side of the seal groove wider than the width on the opening side of the seal groove used in semiconductor manufacturing equipment.
- the composite sealing material of the present invention can be applied to the “groove”.
- the composite seal material of the present invention is a seal groove having a substantially rectangular cross section in which the width of the seal groove force on the bottom side of the seal groove and the width on the opening side of the seal groove are substantially the same.
- the composite sealing material of the present invention can also be applied to a sealing groove having a substantially rectangular cross section in which the width on the bottom side of the sealing groove and the width on the opening side of the sealing groove are substantially the same.
- the composite sealing material of the present invention is characterized in that the first sealing member force rubber force is also configured.
- the first seal member also has a rubber force that is an elastic member. Therefore, when the composite seal material is pressed into contact with the elastic force of the rubber, the first seal member The bulge portion of the first seal portion can be pressed to provide high sealing performance.
- the composite sealing material of the present invention is characterized in that the rubber constituting the first sealing member has a fluorine rubber force.
- the rubber force that constitutes the first seal member is also made of fluororubber force, so even if it comes into contact with corrosive gas or plasma, it has good durability against corrosive gas or plasma. Sealing performance does not deteriorate.
- the composite sealing material of the present invention is characterized in that the second sealing member is made of a synthetic resin.
- the second sealing member force is made of synthetic resin, which is a harder material than the first sealing member, so that the durability against corrosive gas, plasma, etc. is good, and the elastic member The entire first sealing member constituted by these members is protected against such corrosive gas, plasma and other forces, and the sealing performance is not deteriorated.
- the synthetic resin constituting the second sealing member is a fluorine resin, a polyimide resin, a polyamideimide resin, a polyetherimide resin, or a polyamideimide resin. It is characterized by being composed of one or more synthetic resins selected from polyphenylene sulfide resin, polybenzimidazole resin, and polyetherolene resin.
- the synthetic resin constituting the second seal member is a fluorine resin, a polyimide resin, a polyamideimide resin, a polyetherimide resin, a polyamideimide resin, a polyphenylene sulfide resin, Because it is composed of one or more synthetic resins selected from polybenzimidazole resin and polyetherketone resin, it is resistant to corrosive gases and plasma.
- the entire first seal member which is extremely good, has both strength and elasticity, is protected from these corrosive gases, plasma, etc., and the sealing performance does not deteriorate. .
- the composite sealing material of the present invention has a seal height L3 of the first seal member and a seal height L5 force of the second seal member.
- the crushing ratio is set as follows: (seal height ⁇ groove depth L4) Z seal height X 100
- the composite sealing material of the present invention has performances such as vacuum sealing performance, plasma resistance, and corrosion gas resistance, and the vacuum sealing performance is not deteriorated even by repeated use. It is easy to manufacture and can be manufactured at low cost without generating metal particles during use.
- the seal groove used in the semiconductor manufacturing apparatus is a seal groove having a shape in which the width on the bottom side of the seal groove is wider than the width on the opening side of the seal groove.
- the present invention can be applied to a seal groove having a special shape, that is, a so-called “groove”.
- first extending portion of the first seal member and the second extending portion of the second seal member are in contact with each other on the taper surface, a predetermined tightening pressure is applied. Even in such a case, the plasma resistance can be sufficiently exhibited as well as the sealing property. Therefore, even if it is used for a large-diameter sealing material that is difficult to apply a sufficient tightening force to a wide sealing surface, sufficient sealing performance and plasma resistance are exhibited.
- FIG. 1 is a cross-sectional view of the composite sealing material of the present invention mounted in a so-called “groove” that is a seal groove.
- FIG. 2 is a schematic diagram for explaining the dimensional relationship between the composite sealing material of FIG. 1 and a seal groove.
- FIG. 3 is a cross-sectional view illustrating a state in which the composite sealing material of the present invention is mounted in a seal groove and pressed.
- FIG. 4 is a cross-sectional view for explaining a state in which the composite sealing material of the present invention is mounted in a seal groove and pressed.
- FIG. 5 is a cross-sectional view illustrating a state in which the composite sealing material of the present invention is mounted in a seal groove and pressed.
- FIG. 6 is a cross-sectional view for explaining a state in which the composite sealing material of the present invention is mounted in a seal groove and pressed.
- FIG. 7 is an enlarged cross-sectional view of another embodiment of the composite sealing material of the present invention. It is.
- FIG. 8 is an enlarged cross-sectional view of another embodiment of the composite sealing material of the present invention.
- FIG. 9 is an enlarged cross-sectional view of another embodiment of the composite sealing material of the present invention.
- FIG. 10 is a schematic view showing the behavior of the composite sealing material shown in FIG. 9 during compression.
- FIG. 11 is a schematic view showing the composite sealing material shown in FIG. 9, in particular, a state where a second sealing member is virtually divided.
- FIG. 12 is a schematic view showing the behavior of each part when the sealing material shown in FIG. 11 is compressed and deformed.
- FIG. 13 is a schematic view of a test apparatus used for examining the sealing performance of a sealing material according to an example of the present invention.
- FIG. 14 is a schematic view showing an evaluation jig when a sample sample is set in the sealing device.
- FIG. 15 is a schematic view of a test apparatus for examining plasma resistance performance.
- FIG. 16 is a cross-sectional view of a conventional composite sealing material.
- FIG. 17 is a cross-sectional view of a conventional composite sealing material.
- FIG. 18 is a partially enlarged perspective view of a conventional composite sealing material.
- FIG. 19 is a cross-sectional view of a conventional composite sealing material.
- FIG. 20 is a cross-sectional view of a conventional composite sealing material.
- FIG. 1 is a cross-sectional view of the composite sealing material of the present invention mounted in a so-called “groove” that is a sealing groove
- FIG. 2 is a schematic diagram for explaining the dimensional relationship between the composite sealing material of FIG. 1 and the sealing groove.
- FIG. 3 and FIG. 3 to FIG. 6 are cross-sectional views for explaining a state in which the composite sealing material of the present invention is mounted in a sealing groove and pressed.
- 10 indicates the composite sealing material of the present invention as a whole, and this composite sealing material 10 has a substantially annular shape and is attached to the substantially annular sealing groove 12.
- the seal groove 12 is, for example, a width force on the bottom 14 side of the seal groove 12 used in a semiconductor manufacturing apparatus such as a dry etching apparatus or a plasma CVD apparatus. It is a specially shaped seal groove that is wider than the width on the 6th side, so-called “dove groove”.
- the side of one side wall 18 of the seal groove 12 that is, a severe environment side such as corrosive gas or plasma in a semiconductor manufacturing apparatus.
- the first seal member 20 is provided on the side opposite to the one side of the chamber (for example, the atmosphere side).
- the other side wall 22 side of the seal groove 12 that is, a severe environment side such as corrosive gas or plasma in a semiconductor manufacturing apparatus.
- a second seal member 24 is provided on one side of the chamber.
- the first seal member 20 has a substantially L-shaped cross section
- the second seal member 24 has a shape complementary to the first seal member 20.
- the cross-section has a substantially inverted L shape.
- the first seal member 20 includes a first seal member main body 26 and a bulging portion 28 that gently bulges in a curved shape outward from the opening portion 16 of the seal groove 12. 1 seal part 30 is provided.
- the second seal member 24 includes a second seal member main body 32 and a second seal positioned closer to the opening 16 of the seal groove 12 than the second seal member main body 32. Part 34 is provided. Further, the second seal portion 34 of the second seal member 24 includes a second extending portion 36 extending toward the first seal member 20.
- first seal member main body 26 force is provided with a first extension 38 extending to the seal groove side of the second extension 36 of the second seal member 24.
- an end face 40 on one side wall side 18 of the seal groove 12 of the first seal member body 26 is a tapered surface 42 inclined toward the second seal member 24 side.
- the first sealing member 20 when the composite sealing material 10 is pressed, the first sealing member 20 has a gap formed between the tapered surface 42 and the side wall 18 of the sealing groove 12. 44, the first seal member 20 can be prevented from protruding from the opening 16 of the seal groove 12 to damage and damage the first seal member 20, and the sealing performance can be prevented from being deteriorated. It can be prevented from causing dyeing. [0056]
- the width force on the bottom 14 side of the seal groove 12 used in the semiconductor manufacturing apparatus is the width on the opening side of the seal groove.
- this tapered surface 42 When mounting in a specially shaped seal groove, a so-called ⁇ groove '', which is a wider seal groove, this tapered surface 42 is brought into contact with the opening of the dovetail groove and along the tapered surface 42, By inserting it so as to slide, the composite sealing material 10 can be mounted, and the mounting work is facilitated.
- first seal member 20 is also configured as an elastic member
- second seal member 24 is also configured as a material force that is harder than the first seal member 20.
- the bulging portion 28 of the first sealing portion 30 of the first sealing member 20 is formed.
- the seal member is pressed and sealed, and the second extension portion 36 of the second seal member 24 is opened to the seal groove 12 via the first extension portion 38 of the first seal member 20.
- the upper surface 34a of the second seal portion 34 is pressed against the portion 16 and pressed so as to provide a sealing property.
- the first seal member 20 is also configured with a rubber force that is an elastic member.
- a rubber force that is an elastic member.
- either natural rubber or synthetic rubber can be used as the rubber.
- the first sealing member 20 is also constituted by a rubber force which is an elastic member, and thus by the elastic force of this rubber.
- the composite sealing material 10 is pressure-contacted, the bulging portion 28 of the first seal portion 30 of the first seal member 20 is pressed and high sealing performance can be imparted.
- fluororubbers examples include vinylidene fluoride Z hexafluoropropylene copolymer, vinylidene fluoride Z trifluoroethylene copolymer, and vinylidene fluoride Z pentafluoropropylene.
- Binary vinylidene fluoride rubber such as copolymer, vinylidene fluoride Z tetrafluoroethylene Z hexafluoropropylene copolymer, vinyl fluoride
- the rubber force constituting the first seal member 20 is also configured as described above, even if the first seal member 20 is in contact with corrosive gas or plasma, it is corroded. Sealing performance with good durability against reactive gases and plasmas does not deteriorate.
- the second seal member 24 is made of a synthetic resin, preferably a fluorine resin, a polyimide resin, a polyamideimide resin, a polyetherimide resin, a polyimide resin. Desirably, it is composed of one or more synthetic resins selected from fat, polyphenylene sulfide resin, polybenzoimidazole resin, and polyether ketone resin.
- the second seal member 24 force is made of a synthetic resin that is harder than the first seal member 20, and therefore has good durability against corrosive gases and plasma.
- the entire force of the first seal member 20 that also constitutes the elastic member is protected against these corrosive gases, plasma and other forces, and the sealing performance is not lowered.
- fluorine resin polytetrafluoroethylene (PTFE) resin, tetrafluoroethylene perfluoroalkyl butyl ether copolymer (PFA) resin, tetrafluoroethylene monohexahexan.
- Fluoropropylene copolymer (FEP) resin Tetrafluoroethylene ethylene copolymer (ETFE) resin, Polyvinylidene Fluorite (PVDF) resin, Polychlorinated trifluoroethylene (PCTFE) resin
- Black Examples include trifluoroethylene-ethylene copolymer (ECTFE) resin, polybulufluoride (PVF) resin, among which heat resistance, corrosion resistant gas, plasma resistance, etc. Is considered, PT FE is preferable.
- the seal width L1 of the composite seal material 10 is larger than the groove width L2 of the opening 16 of the seal groove 12, and the seal groove 12 of the composite seal material 10 is larger. A force that increases the drop-off resistance is difficult, so it is desirable that the groove width be 101 to 130% of the groove width L2.
- the seal height L3 of the first seal member 20 is determined by the crushing of the seal. It is desirable that the ratio is 3 to 45%, preferably 5 to 30%. In this case, the crushing rate means (seal height-groove depth L4) Z seal height X 100.
- the height L5 of the second seal member 24 made of synthetic resin is at least the same as the groove depth L4 of the seal groove 12 in order to enhance the plasma shielding effect.
- the second seal member 24 made of synthetic resin is more rigid and harder to deform than the first seal member 20 also made of an elastic material. If it exceeds, the crushing rate should be 0-35%.
- the crushing rate means (seal height groove depth L4) Z seal height X100.
- the seal height is the seal height L3 for the first seal member 20, and the seal height L5 for the second seal member 24.
- the width L6 of the second seal member main body 32 of the second seal member 24 made of synthetic resin is considered to be a force that stabilizes the deformation of the first seal member 20 that is rubber as the width L6 becomes smaller. Therefore, it is desirable to set it to 50 m or more.
- the second seal member 24 made of synthetic resin has poor resilience, but the width L7 of the second extension 36 of the second seal member 24 is the first seal that is rubber. In order to receive the restoring force of the rubber of the first extending portion 38 of the member 20, it always comes into contact with the mating member and blocks the plasma.
- L8 is preferably 30% to 90% of the seal width L1 of the composite seal material 10.
- the seal groove that is a dovetail groove 1 In order to smoothly deform into the groove along one side wall 18 that is the slope of 2, the seal width L1 of the composite seal material 10 of the first seal part 30 of the first seal member 20 is the maximum. It is desirable that the angle between the point P1 and the point P2 having the same height as the opening 16 of the seal groove 12 is an inclined surface having an angle ⁇ 1 and a groove angle ⁇ 2 ⁇ 2 °.
- the seal surface is formed from the point P2 of the first seal portion 30 of the first seal member 20 to the joint point P3 with the resin, it is desirable to have a gentle curved surface.
- the groove width L2 of the opening 16 of the seal groove 12 It is desirable to be 50-100%.
- the bottom surface force of the first seal member body 26 of the first seal member 20 The height L10 up to the maximum seal width point P1 is the narrowest groove width L2 of the opening 16 of the seal groove 12 P5 It is desirable to keep it low.
- L10 is desirably 50 to 80% of the seal height L3 of the first seal member 20.
- the fluid contact region A1 is entirely coated with fluorine resin, polyimide resin, polyamideimide resin, polyetherimide resin, and polyamideimide resin as described above. It is desirable that the resin is composed of one or more synthetic resins selected from polyphenylene sulfide resin, polybenzoimidazole resin, and polyether ketone resin. [0078] Further, as shown in FIG. 2, the contact areas A2 and A3 of the first seal member 20 and the second seal member 24 have a higher cost if they are curved. It is desirable to use a simple substantially flat surface.
- first seal member 20 and the second seal member 24 can be joined together. Any known joining method such as welding, welding, bonding, and integral molding can be employed, and although not particularly limited, it is possible to form a composite by joining together with an adhesive, preferably a heat-resistant adhesive. It is desirable to produce sealant 10.
- the composite seal material 10 is mounted in the seal groove 12.
- the composite seal material 10 can be installed along the tapered surface 42 of the first seal member 20, which facilitates the installation work. It has become.
- the second extension portion of the second seal member 24 is passed through the first extension portion 38 of the first seal member 20.
- 36 is pressed upward (on the side of the opening 16 of the seal groove 12), and a rotational moment is generated as shown by an arrow C, so that the upper surface of the second seal portion 34 of the second seal member 24 is generated.
- 34a in particular, the upper end portion 34b of the second seal portion 34 is pressed by stress concentration to provide a sealing property.
- the second seal member 24 also has a harder material force than the first seal member 20, so that the second seal member 24 side is, for example, a dry etching device.
- the second seal member is placed on one side of the chamber, which is the harsh and environmental side of corrosive gases and plasma in semiconductor manufacturing equipment such as plasma CVD equipment.
- 24 is a pressure contact portion of the first seal member 20 constituted by an elastic member force by pressure contact with the upper surface portion 34 of the second seal portion 34 (particularly, the upper surface end portion 34b of the second seal portion 34).
- the bulging portion 28 of the first seal portion 30 is protected against such forces as corrosive gas and plasma, and the sealing performance is not deteriorated.
- the upper surface portion 34a of the second seal portion 34 of the second seal member 24 is flattened, but the upper surface end portion 34b of the second seal portion 34 is previously set upward. It may be tilted so that
- first seal member 20 and the second seal member 24 are! And all are solid, but V, one or both of them can be hollow. .
- FIG. 7 is an enlarged cross-sectional view of another embodiment of the composite sealing material of the present invention.
- the composite sealing material 10 of this embodiment has basically the same configuration as shown in FIG. 1, and the same reference numerals are assigned to the same components.
- the second sealing member main body 32 of the second sealing member 24 has the first sealing member 20 on the bottom surface side on the sealing groove 12 side. It has a bottom extension 46 extending to the side.
- the second seal member 24 is configured such that a material force harder than the first seal member 20 is formed on one side of the chamber, which is a severe and environmental side, such as corrosive gas and plasma. Since the bottom extending portion 46 of the second seal member 24 is located between the bottom 14 of the seal groove 12 and the bottom of the composite seal material 10, the seal groove 12 It is protected from the corrosive gas, plasma, etc. that wraps around between the bottom 14 and the bottom of the composite sealing material 10, so that the sealing performance does not deteriorate.
- FIG. 8 is an enlarged cross-sectional view of still another embodiment of the composite sealing material of the present invention.
- the composite sealing material 10 of this embodiment has basically the same configuration as shown in FIG.
- the same reference numerals are assigned to the same components.
- the seal groove 12 has substantially the same width on the bottom 14 side of the seal groove 12 and the width on the opening 16 side of the seal groove 12.
- the seal groove has a substantially rectangular cross section.
- the composite sealing material 10 of the embodiment shown in FIG. 1 has substantially the same action, and the composite sealing material 10 of the present invention is used as the bottom 14 side of the seal groove 12.
- This can also be applied to a seal groove having a substantially rectangular cross-section with substantially the same width on the opening 16 side of the seal groove 12.
- FIG. 9 is an enlarged cross-sectional view of still another embodiment of the composite sealing material of the present invention.
- the composite sealing material 10 of this embodiment has basically the same configuration as shown in FIG. 1, and the same reference numerals are assigned to the same components.
- the contact areas A2 and A3 of the first sealing member 20 and the second sealing member 24 are parallel to the bottom 14 of the sealing groove 12. It is in contact with a slanted surface that is not the same surface. That is, in the composite sealing material 10 shown in FIG. 9, the lines connecting the points P6 and P7 at both ends of the contact areas A2 and A3 are inclined obliquely when viewed in cross section.
- inclination angle ⁇ formed by the obliquely inclined taper surface 25 and the bottom 14 of the seal groove 12 is not particularly limited and can be adjusted as appropriate.
- the composite sealing material 10 of the embodiment shown in FIG. 1 has almost the same effect.
- such a composite sealing material 10 is particularly suitable for a large-diameter sealing material for the following reasons. It can be preferably applied.
- the caliber force of the seal material is, for example, about 3 times larger than usual.
- it is difficult to ensure such tightening pressure because it usually increases the size of the device.Furthermore, a large-diameter seal material also has a long peripheral length, so the gap between the bolts The interval becomes longer, and it is difficult to apply a uniform tightening surface pressure to the sealing material over the entire circumference. Therefore, with a large-diameter sealing material, the tightening surface pressure that can be generally applied tends to be small and non-uniform. [0096] However, if the tightening surface pressure is reduced in this way, the plasma resistance cannot be sufficiently secured even if the sealing performance as the sealing material can be secured!
- the sealing performance is exhibited by the deformation of the bulging portion 28 of the first sealing member 20 which also serves as an elastic member, while the plasma resistance is deformed by the hard second sealing member 24. It is demonstrated for the first time. Therefore, although sealing performance is ensured at a relatively early stage of tightening, plasma resistance cannot be achieved unless sufficient tightening pressure is applied. Therefore, it is conceivable to reduce the rigidity of the second seal member by narrowing the width of L6.
- the contact areas A2 and A3 are composed of a tapered surface 25.
- the second seal member 24 when the tapered surface 25 is provided in the substantially middle part of the contact region, as shown in FIG. 11, the second seal member 24 includes a wide plasma shielding part A and a deformation suppressing part B having a trapezoidal cross section. It can be divided into three areas: the length in the vertical direction and the compression load absorber.
- the first seal member 20 is first deformed to the bottom 14 side of the seal groove 12, and the first extension 38 is formed. Sea Enter the area E behind the groove 12.
- the plasma shielding portion A is compressed from the counterpart member 70, and the upper end portion 34b thereof is in strong contact with the counterpart member 70. This provides a plasma shielding effect. Moreover, even if the load is low, a plasma shielding effect can be obtained.
- a certain size or more is required.
- the width L6 of the compressive load absorbing portion C is 3% or more, preferably 10% or more of L5.
- L2 is preferably 10 to 40% of L5.
- L3 is preferably 80% or less of L5.
- Example 1 (As shown in FIG. 1, the first protrusion and the second protrusion Equivalent to sealing material)
- Example 2 (As shown in FIG. 9, equivalent to a composite sealing material in which the first protrusion and the second protrusion contact in a tapered manner)
- NK ring (product name) is a seal material made by NES in the UK and completely wrapped in a fluoro rubber jacket.
- the sample sample 10 was clamped to a tightening load of 86 kgf using a torque wrench between the flanges 72 and 74, fixed with bolts 76, and measured with the helium leak detector 78.
- the inner diameter side of the sample sample 10 is evacuated, and helium gas is flowed to the outer diameter side of the sample sample 10 (lOmlZmin), and the permeation leakage amount of each sample sample 10 is measured. After that, tighten the same sample to a tightening load of 400kgf and measure the permeation leakage amount in the same way.
- the plasma resistance evaluation test was conducted separately under the conditions of low and high tightening loads. That is, as shown in FIG. 14, an aluminum plus jig for jig evaluation is prepared which is composed of an upper member 80 and a lower member 82 having a substantially disk shape, and a lower groove 82 for mounting a sample sample is formed in the lower member 82. did. Then, after mounting one sample sample 10 on the lower member 82 of the plasma evaluation jig, the upper member 80 was fixed with a bolt using a torque wrench so as to have a low tightening load (86 kgf). After that, as shown in FIG. 15, the evaluation jig equipped with the sample sample was placed on the lower electrode of the plasma CVD apparatus and irradiated with plasma under the following conditions.
- Test temperature Room temperature
- Table 1 shows the test results.
- the superiority or inferiority of each sample was evaluated in two grades, ⁇ or X.
- the amount in the parenthesis is the amount of permeation of helium, and the unit is Pa ⁇ m 3 Zs.
- Example 1 and Example 2 showed the same sealing performance as the fluororubber ring. This shows that even under low tightening conditions, the product of the present invention can exhibit the sealing performance by the first seal member 20 even in the shape of FIGS. 1 and 9.
- Example 2 (a product equivalent to Fig. 9), the plasma resistance was good both when the clamping pressure was low and when the clamping pressure was high. This is because the first seal member 20 is sufficiently compressed and deformed by providing the tapered surface 25, so that the second seal member 24 made of PTFE resin and the mating member (the upper member 80 of the test jig) It is considered that the gap is substantially eliminated and the plasma shielding effect by the second seal member 24 is functioning effectively.
- Example 2 shown in FIG. 9 even when the seal material receives only a compressive load lower than that in Example 1 shown in FIG. It was confirmed that the performance was demonstrated.
- both the composite sealing material of Example 1 of the present invention and the conventional "NK ring (trade name)" are resistant to the plasma that becomes a corrosive fluid. Confirmed blocking in minutes. The surface of the fluororubber O-ring was severely etched by the plasma.
- the product of the present invention has both the sealing performance and the function of preventing the corrosive fluid regardless of the shape of FIG. 1 or the shape of FIG.
- the power for explaining the preferred embodiments of the present invention is not limited to this.
- a semiconductor device such as a dry etching apparatus or a plasma CVD apparatus.
- Force S the composite sealing material of the present invention is
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005800311508A CN101023289B (zh) | 2004-09-17 | 2005-05-12 | 复合密封材料 |
US11/662,997 US7866669B2 (en) | 2004-09-17 | 2005-05-12 | Composite sealing material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-271703 | 2004-09-17 | ||
JP2004271703A JP4689221B2 (ja) | 2003-11-10 | 2004-09-17 | 複合シール材 |
Publications (1)
Publication Number | Publication Date |
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WO2006030557A1 true WO2006030557A1 (ja) | 2006-03-23 |
Family
ID=36059819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/008729 WO2006030557A1 (ja) | 2004-09-17 | 2005-05-12 | 複合シール材 |
Country Status (5)
Country | Link |
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US (1) | US7866669B2 (ja) |
KR (2) | KR100877283B1 (ja) |
CN (1) | CN101023289B (ja) |
TW (1) | TWI387695B (ja) |
WO (1) | WO2006030557A1 (ja) |
Cited By (1)
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CN112424513A (zh) * | 2018-07-19 | 2021-02-26 | 应用材料公司 | 多节点多用途o形环及制作密封的方法 |
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WO2010093782A2 (en) * | 2009-02-12 | 2010-08-19 | Halliburton Energy Services, Inc. | Anti-extrusion seal for high temperature applications |
CA2667320A1 (en) | 2009-06-08 | 2010-12-08 | Noetic Technologies Inc. | Seal assembly |
US20100314838A1 (en) * | 2009-06-15 | 2010-12-16 | Noetic Technologies Inc. | Seal assembly |
GB201004045D0 (en) * | 2010-03-11 | 2010-04-28 | Tendeka Bv | Fully bonded end rings |
US8623145B2 (en) * | 2010-03-25 | 2014-01-07 | Parker-Hannifin Corporation | Substrate processing apparatus with composite seal |
DE102010045672B3 (de) * | 2010-09-17 | 2012-03-01 | Carl Freudenberg Kg | Verfahren zur Herstellung einer Dichtung |
CA2863581C (en) * | 2011-02-02 | 2019-04-02 | Technofast Industries Pty Ltd | High-pressure sealing ring |
DE102011102922A1 (de) * | 2011-05-31 | 2012-12-06 | Hydrometer Gmbh | Dichtung und Gehäuse mit einer solchen Dichtung |
US8608173B2 (en) * | 2011-08-25 | 2013-12-17 | Hamilton Sundstrand Corporation | Method and apparatus to provide sealing contact between first and second fueldraulic components |
US9869392B2 (en) | 2011-10-20 | 2018-01-16 | Lam Research Corporation | Edge seal for lower electrode assembly |
US9859142B2 (en) | 2011-10-20 | 2018-01-02 | Lam Research Corporation | Edge seal for lower electrode assembly |
JP5425954B2 (ja) * | 2012-03-14 | 2014-02-26 | 石川ガスケット株式会社 | ガスケット用ラバーリング |
CN102678923A (zh) * | 2012-05-15 | 2012-09-19 | 苏州国环环境检测有限公司 | 耐高温采样口密封装置 |
US10428955B2 (en) * | 2012-06-25 | 2019-10-01 | Hamilton Sundstrand Corporation | Contamination resistant butterfly valve |
US20140015201A1 (en) * | 2012-07-13 | 2014-01-16 | Halliburton Energy Services, Inc. | High pressure seal back-up |
US9892945B2 (en) * | 2012-10-09 | 2018-02-13 | Nippon Valqua Industries, Ltd. | Composite seal |
KR101471766B1 (ko) * | 2013-06-17 | 2014-12-10 | 주식회사 엠앤이 | 불소수지 본디드 씨일링 및 그 제조방법 |
US10036355B2 (en) * | 2013-08-08 | 2018-07-31 | Cummins Inc. | Heat transferring fuel injector combustion seal with load bearing capability |
US10090211B2 (en) | 2013-12-26 | 2018-10-02 | Lam Research Corporation | Edge seal for lower electrode assembly |
WO2015170519A1 (ja) * | 2014-05-08 | 2015-11-12 | Nok株式会社 | ガスケット及び密封構造 |
US9909667B2 (en) * | 2015-07-31 | 2018-03-06 | GM Global Technology Operations LLC | Seal for pressurized fluid and open interface gap |
KR20180079342A (ko) | 2015-11-11 | 2018-07-10 | 그린, 트위드 테크놀로지스, 인코포레이티드 | 고온 엔드 적용을 위한 밀봉링 및 밀봉링 조립체 |
DE102016213899A1 (de) * | 2016-07-28 | 2018-02-01 | Mahle International Gmbh | Dichtungselement |
USD818089S1 (en) | 2016-09-14 | 2018-05-15 | Nippon Valqua Industries, Ltd. | Composite seal |
US10533666B2 (en) * | 2017-01-12 | 2020-01-14 | The Boeing Company | Sealing structures and valve assemblies including the sealing structures |
JP6809917B2 (ja) * | 2017-01-31 | 2021-01-06 | 株式会社バルカー | 複合シール材 |
US9915389B1 (en) * | 2017-02-06 | 2018-03-13 | Emerson Process Management Regulator Technologies, Inc. | Mechanically-retained sealing disks for use with fluid regulators |
US10648602B2 (en) * | 2017-05-23 | 2020-05-12 | S&B Technical Products, Inc | Sealing gasket with specialized reinforcing ring for sealing plastic pipelines |
CN112324524A (zh) * | 2020-11-03 | 2021-02-05 | 中国北方发动机研究所(天津) | 一种增压器复合密封环 |
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- 2005-05-12 US US11/662,997 patent/US7866669B2/en active Active
- 2005-05-12 KR KR1020087024183A patent/KR20080097489A/ko not_active Application Discontinuation
- 2005-05-12 CN CN2005800311508A patent/CN101023289B/zh active Active
- 2005-05-12 WO PCT/JP2005/008729 patent/WO2006030557A1/ja active Application Filing
- 2005-05-13 TW TW094115493A patent/TWI387695B/zh active
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Also Published As
Publication number | Publication date |
---|---|
KR20070053325A (ko) | 2007-05-23 |
US20080018058A1 (en) | 2008-01-24 |
US7866669B2 (en) | 2011-01-11 |
TW200610911A (en) | 2006-04-01 |
TWI387695B (zh) | 2013-03-01 |
KR100877283B1 (ko) | 2009-01-07 |
CN101023289B (zh) | 2011-08-10 |
CN101023289A (zh) | 2007-08-22 |
KR20080097489A (ko) | 2008-11-05 |
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