Rectangular parallelepiped fluid storage and dispensing vessel
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/04
B01D-053/14
출원번호
US-0314777
(2002-12-09)
발명자
/ 주소
Brestovansky,Dennis
Wodjenski,Michael J.
Arno,Jose I.
Carruthers,J. Donald
출원인 / 주소
Advanced Technology Materials, Inc.
인용정보
피인용 횟수 :
30인용 특허 :
47
초록▼
A fluid storage and dispensing apparatus including a fluid storage and dispensing vessel having a rectangular parallelepiped shape, and an integrated gas cabinet assembly including such fluid storage and dispensing apparatus and/or a point-of-use ventilation gas scrubber in the vented gas cabinet. B
A fluid storage and dispensing apparatus including a fluid storage and dispensing vessel having a rectangular parallelepiped shape, and an integrated gas cabinet assembly including such fluid storage and dispensing apparatus and/or a point-of-use ventilation gas scrubber in the vented gas cabinet. By the use of physical adsorbent and chemical sorbent media, the gas cabinet can be enhanced in safety of operation, e. g., where the process gas supplied from the gas cabinet is of a toxic or otherwise hazardous character.
대표청구항▼
What is claimed is: 1. A method of reducing footprint of a gas cabinet assembly comprising a gas cabinet containing a gas source including at least one gas storage and dispensing vessel that is manually transportable for vessel change-outs in operation of the gas cabinet, said gas cabinet containin
What is claimed is: 1. A method of reducing footprint of a gas cabinet assembly comprising a gas cabinet containing a gas source including at least one gas storage and dispensing vessel that is manually transportable for vessel change-outs in operation of the gas cabinet, said gas cabinet containing a physical adsorbent sorptively retaining said gas thereon, said method comprising providing each of said at least one gas storage and dispensing vessel as a vessel with a rectangular parallelepiped form. 2. The method of claim 1, wherein each said vessel with a rectangular parallelepiped form is fabricated from sheet metal. 3. The method of claim 1, wherein said gas source comprises two or more gas storage and dispensing vessels, comprising disposing successive gas storage and dispensing vessels in side-by-side relationship to one another. 4. The method of claim 3, comprising disposing successive gas storage and dispensing vessels in abutting relationship to one another along facing walls thereof. 5. The method of claim 3, further comprising disposing at least some of said gas storage and dispensing vessels in abutting relationship to one or more walls of said gas cabinet. 6. A method of storing and dispensing a gas at low pressure, comprising: fabricating a manually transportable vessel having a rectangular parallelepiped form; disposing a physical adsorbent in the vessel having sorptive affinity for said gas; charging said gas to said vessel for adsorption on said physical adsorbent; sealing said vessel with a valve head containing an actuatable valve, to enclose the physical adsorbent and adsorbed gas, and isolate same from an exterior environment of the vessel; desorbing the adsorbed gas from the physical adsorbent, and actuating the actuatable valve in the valve head, to flow gas from the vessel and through the actuatable valve, for gas dispensing. 7. A method of reducing fluid burden on an exhaust scrubber of a semiconductor manufacturing facility comprising a vented gas cabinet through which ventilation gas is flowed in operation of the gas cabinet, said method comprising contacting said ventilation gas prior to discharge thereof from the gas cabinet with a scrubbing medium in the gas cabinet, to remove scrubbable contaminant therefrom, and discharging scrubbed ventilation gas from the gas cabinet, whereby need for treatment of discharged ventilation gas by said exhaust scrubber of the semiconductor manufacturing facility is obviated. 8. The method of claim 7, further comprising recirculating the scrubbed ventilation gas to the vented gas cabinet to reduce make-up ventilation gas requirement. 9. The method of claim 7, wherein said scrubbing medium comprises a chemisorbent reactive with the contaminant for removal thereof from the ventilation gas. 10. A manually transportable fluid storage and dispensing apparatus, comprising a fluid storage and dispensing vessel having an interior volume, wherein the interior volume contains a physical adsorbent sorptively retaining a fluid thereon and from which the fluid is desorbable for dispensing from the vessel, and a dispensing assembly coupled to the vessel for dispensing desorbed fluid from the vessel, wherein the fluid storage and dispensing vessel is of rectangular parallelepiped form. 11. The fluid storage and dispensing apparatus of claim 10, wherein the physical adsorbent is of divided form constituting a bed in the interior volume of the vessel. 12. The fluid storage and dispensing apparatus of claim 11, wherein said divided form comprises a form selected from the group consisting of beads, particles, granules, pellets, rings, platelets, tablets, cylindrical extrudates, cubic shapes, and molded geometrically regular and irregular shapes. 13. The fluid storage and dispensing apparatus of claim 10, wherein the physical adsorbent is of monolithic form. 14. The fluid storage and dispensing apparatus of claim 13, wherein said monolithic form is selected from the group consisting of blocks, bricks, and boules. 15. The fluid storage and dispensing apparatus of claim 13, wherein the monolithic form comprises a single monolithic article. 16. The fluid storage and dispensing apparatus of claim 13, wherein the monolithic form comprises a multiplicity of discrete monolithic articles. 17. The fluid storage and dispensing apparatus of claim 16, wherein the interior volume of the vessel contains less than 75 discrete monolithic articles of said physical absorbent. 18. The fluid storage and dispensing apparatus of claim 16, wherein the interior volume of the vessel contains less than 20 discrete monolithic articles of said physical adsorbent. 19. The fluid storage and dispensing apparatus of claim 16, wherein the interior volume of the vessel contains less than 8 discrete monolithic articles of said physical adsorbent. 20. The fluid storage and dispensing apparatus of claim 16, wherein the interior volume of the vessel contains less than 4 discrete monolithic articles of said physical adsorbent. 21. The fluid storage and dispensing apparatus of claim 16, wherein each of the multiplicity of discrete monolithic articles has a length that is between 0.3 and 1.0 times the height of the interior volume of the vessel, and a cross-sectional area that is between 0.1 and 0.5 times the rectangular cross-sectional area of the vessel. 22. The fluid storage and dispensing apparatus of claim 16, wherein each of the multiplicity of discrete monolithic articles has a rectangular parallelepiped shape. 23. The fluid storage and dispensing apparatus of claim 16, wherein each of the multiplicity of discrete monolithic articles is laterally and/or longitudinally abutted in surface contact with adjacent monolithic members in the interior volume of the vessel. 24. The fluid storage and dispensing apparatus of claim 16, wherein each of the multiplicity of discrete monolithic articles has a solid cylinder form. 25. The fluid storage and dispensing apparatus of claim 13, wherein the monolithic physical adsorbent provides a sorbent mass that is conformed in size and shape to the interior volume of the vessel. 26. The fluid storage and dispensing apparatus of claim 25, wherein the sorbent mass occupies at least 60% of the interior volume of the vessel. 27. The fluid storage and dispensing apparatus of claim 25, wherein the sorbent mass occupies from about 75% to about 95% of the interior volume of the vessel. 28. The fluid storage and dispensing apparatus of claim 13, wherein the physical adsorbent is a pyrolysis product of an organic resin. 29. The fluid storage and dispensing apparatus of claim 28, wherein the physical adsorbent has been formed in situ in the vessel. 30. The fluid storage and dispensing apparatus of claim 10, wherein the fluid comprises a fluid having utility in semiconductor manufacturing. 31. The fluid storage and dispensing apparatus of claim 30, wherein the fluid comprises a fluid species selected from the group consisting of arsine, phosphine, hydrogen selenide, hydrogen telluride, nitrogen trifluoride, boron trifluoride, boron trichloride, diborane, trimethylsilane, tetramethylsilane, disilane, silane, germane, and organometallic gaseous reagents. 32. The fluid storage and dispensing apparatus of claim 10, wherein the fluid has a pressure in said interior volume not exceeding about 1500 torr. 33. The fluid storage and dispensing apparatus of claim 10, wherein the fluid has a pressure in said interior volume not exceeding about 700 torr. 34. The fluid storage and dispensing apparatus of claim 10, wherein the fluid has a pressure in said interior volume in a range of from about 400 to about 700 torr. 35. The fluid storage and dispensing apparatus of claim 10, wherein the vessel comprises a material of construction selected from the group consisting of metals, glasses, ceramics, vitreous materials, polymers, and composite materials. 36. The fluid storage and dispensing apparatus of claim 35, wherein the vessel comprises a metal material of construction. 37. The fluid storage and dispensing apparatus of claim 36, wherein said metal is selected from the group consisting of steel, stainless steel, aluminum, copper, brass, bronze, and alloys thereof. 38. The fluid storage and dispensing apparatus of claim 10, wherein the physical adsorbent comprises a sorbent material selected from the group consisting of carbon, activated carbon, metal-impregnated carbon, molecular sieve (aluminosilicate) materials, porous silicon, silica, alumina, styrene divinylbenzene polymeric materials, sorptive clays, and functionalized sintered glass media. 39. The fluid storage and dispensing apparatus of claim 10, wherein the physical adsorbent comprises carbon. 40. The fluid storage and dispensing apparatus of claim 10, wherein the physical adsorbent comprises activated carbon. 41. The fluid storage and dispensing apparatus of claim 10, wherein the dispensing assembly is coupled to an upper portion of the vessel for dispensing desorbed fluid from the vessel. 42. The fluid storage and dispensing apparatus of claim 10, further comprising a cap detachably secured to the vessel. 43. The fluid storage and dispensing apparatus of claim 42, wherein the dispensing assembly is protectively surrounded by the cap. 44. The fluid storage and dispensing apparatus of claim 42, wherein the cap has openings therein. 45. The fluid storage and dispensing apparatus of claim 44, wherein the cap has a rectangular parallelepiped shape. 46. The fluid storage and dispensing apparatus of claim 45, wherein the cap is of cross-section co-extensive with cross-section of the vessel. 47. The fluid storage and dispensing apparatus of claim 44, wherein the openings are of a size adapted for manual carrying of the apparatus by the cap. 48. The fluid storage and dispensing apparatus of claim 10, further comprising a handle secured to the vessel, for carrying of the apparatus. 49. The fluid storage and dispensing apparatus of claim 10, wherein the vessel comprises a drawn over mandrel forged metal body. 50. The fluid storage and dispensing apparatus of claim 49, wherein the forged metal body is formed of aluminum. 51. A gas cabinet assembly, comprising: (a) a gas cabinet defining an enclosed interior volume and including flow circuitry in said interior volume arranged for dispensing of gas from the cabinet; and (b) a gas source disposed in the interior volume of the gas cabinet and coupled in gas supply relationship to the flow circuitry, wherein said gas source comprises at least one fluid storage and dispensing vessel of rectangular parallelepiped form, each said fluid storage and dispensing vessel containing a physical adsorbent sorptively retaining said gas thereon, and a dispensing assembly coupled to said fluid storage and dispensing vessel for dispensing said gas from the vessel for flow to said flow circuitry. 52. The gas cabinet assembly of claim 51, comprising at least two fluid storage and dispensing vessels of rectangular parallelepiped form. 53. The gas cabinet assembly of claim 52, wherein successive ones of said at least two fluid storage and dispensing vessels of rectangular parallelepiped form are arranged in side-by-side relationship to one another. 54. The gas cabinet assembly of claim 52, wherein successive ones of said at least two fluid storage and dispensing vessels of rectangular parallelepiped form are arranged in abutting relationship to one another at their facing walls. 55. The gas cabinet assembly of claim 51, wherein the gas cabinet is vented. 56. The gas cabinet assembly of claim 55, wherein a source of ventilation gas is coupled to the gas cabinet, for flow of ventilation gas through the interior volume of the gas cabinet, and venting thereof. 57. The gas cabinet assembly of claim 56, wherein the source of ventilation gas comprises an air source. 58. The gas cabinet assembly of claim 51, wherein the gas cabinet is vented to a house exhaust system of a semiconductor manufacturing facility. 59. The gas cabinet assembly of claim 51, wherein the gas cabinet is vented to a treatment and recirculation unit, wherein vented gas is treated and recycled to the gas cabinet. 60. The gas cabinet assembly of claim 51, wherein the gas cabinet comprises a gas box of an ion implantation system. 61. The gas cabinet assembly of claim 51, comprising at least two vessels coupled with said flow circuitry, and a monitoring and control unit arranged to shut off a gas-depleted vessel and to contemporaneously actuate a gas-full vessel for supply of gas to the flow circuitry. 62. The gas cabinet assembly of claim 61, wherein the monitoring and control unit comprises a cycle timer joined to a microprocessor controller and arranged to operate the on-stream vessel for a predetermined time, or a time during which one or more monitored process conditions is in a predetermined set point range. 63. The gas cabinet assembly of claim 61, wherein the flow circuitry comprises valves for controlling flow of gas from each of the gas storage and dispensing vessels in the gas cabinet, with each of said valves being coupled to an automatic valve actuator connected by a signal transmission line to the monitoring and control unit, wherein the monitoring and control unit comprises a general purpose programmable computer programmably arranged to carry out operation with dispensing of gas from a first vessel during a first predetermined period of operation of the gas cabinet assembly, by actuation of the automatic valve actuator of the valve controlling flow of gas from the first vessel, and shut-off of the valve controlling flow of gas from the first vessel at the end of said first predetermined period of operation of the gas cabinet assembly, and with dispensing of gas from a second vessel during a second predetermined period of operation of the gas cabinet assembly, by actuation of the automatic valve actuator of the valve controlling flow of gas from the second vessel, and shut-off of the valve controlling flow of gas from the second vessel at the end of said second predetermined period of operation of the gas cabinet assembly. 64. The gas cabinet assembly of claim 51, wherein the gas cabinet is vented and arranged for flow of ventilation gas therethrough, further comprising a point-of-use scrubber in the gas cabinet for scrubbing of said ventilation gas prior to discharge thereof from the vented gas cabinet, to remove contaminant therefrom. 65. The gas cabinet assembly of claim 64, wherein the point-of-use scrubber comprises a chemisorbent material reactive with said contaminant for removal thereof from the ventilation gas. 66. The gas cabinet assembly of claim 65, wherein the chemisorbent material is effective to remove said contaminant below its threshold limit value (TLV) concentration. 67. The gas cabinet assembly of claim 64, wherein the point-of-use scrubber is mounted on a wall of said gas cabinet. 68. The gas cabinet assembly of claim 64, further comprising an end-point detector for said point-of-use scrubber. 69. The gas cabinet assembly of claim 68, wherein the point-of-use scrubber comprises a scrubber housing containing a scrubbing medium therein, wherein the scrubbing medium undergoes a color change on contacting with said contaminant, and said housing has a sight glass viewing port therein, for visual determination of exhaustion of the scrubbing medium. 70. The gas cabinet assembly of claim 68, wherein the point-of-use scrubber comprises a scrubber housing containing a scrubbing medium therein, wherein the scrubbing medium undergoes a color change on contacting with said contaminant, and the gas cabinet assembly further comprises a colorimetric sensor unit for detecting said color change and producing an output indicative of exhaustion of the scrubbing medium. 71. The gas cabinet assembly of claim 70, wherein said output is arranged to shut off gas flow control valves in the gas cabinet and to prevent operation of the gas cabinet assembly from resuming until the exhausted scrubbing medium is replaced by fresh scrubbing medium. 72. The gas cabinet assembly of claim 68, wherein the point-of-use scrubber comprises a scrubbing medium, and the gas cabinet assembly further comprises a toxic gas monitor (TGM) unit arranged to (i) detect breakthough of said contaminant from the scrubbing medium and (ii) produce an output indicative of exhaustion of the scrubbing medium. 73. The gas cabinet assembly of claim 68, wherein the point-of-use scrubber comprises a scrubbing medium, and the gas cabinet assembly further comprises a programmable logic controller (PLC) unit arranged to count the number of change-outs of gas storage and dispensing vessels since the installation of the scrubbing medium, and to provide an output indicative of need for change out of the scrubbing medium. 74. The gas cabinet assembly of claim 73, wherein the PLC unit is arranged to calculate (i) the amount of gas to which the point-of-use scrubber will be exposed from a single gas storage and dispensing vessel and (ii) based on an inputted scrubbing medium capacity, the number of gas storage and dispensing vessel change-outs that can be performed before the scrubbing medium is exhausted. 75. The gas cabinet assembly of claim 51, wherein the physical adsorbent is of divided form constituting a bed in the interior volume of the vessel. 76. The gas cabinet assembly of claim 75, wherein said divided form comprises a form selected from the group consisting of beads, particles, granules, pellets, rings, platelets, tablets, cylindrical extrudates, cubic shapes, and molded geometrically regular and irregular shapes. 77. The gas cabinet assembly of claim 51, wherein the physical adsorbent is of monolithic form. 78. The gas cabinet assembly of claim 77, wherein said monolithic form is selected from the group consisting of blocks, bricks, and boules. 79. The gas cabinet assembly of claim 77, wherein the monolithic form comprises a single monolithic article. 80. The gas cabinet assembly of claim 77, wherein the monolithic form comprises a multiplicity of discrete monolithic articles. 81. The gas cabinet assembly of claim 80, wherein the interior volume of the vessel contains less than 75 discrete monolithic articles of said physical adsorbent. 82. The gas cabinet assembly of claim 80, wherein the interior volume of the vessel contains less than 20 discrete monolithic articles of said physical adsorbent. 83. The gas cabinet assembly of claim 80, wherein the interior volume of the vessel contains less than 8 discrete monolithic articles of said physical adsorbent. 84. The gas cabinet assembly of claim 80, wherein the interior volume of the vessel contains less than 4 discrete monolithic articles of said physical adsorbent. 85. The gas cabinet assembly of claim 80, wherein each of the multiplicity of discrete monolithic articles has a length that is between 0.3 and 1.0 times the height of the interior volume of the vessel, and a cross-sectional area that is between 0.1 and 0.5 times the rectangular cross-sectional area of the vessel. 86. The gas cabinet assembly of claim 80, wherein each of the multiplicity of discrete monolithic articles has a rectangular parallelepiped shape. 87. The gas cabinet assembly of claim 80, wherein each of the multiplicity of discrete monolithic articles is laterally and/or longitudinally abutted in surface contact with adjacent monolithic members in the interior volume of the vessel. 88. The gas cabinet assembly of claim 80, wherein each of the multiplicity of discrete monolithic articles has a solid cylinder form. 89. The gas cabinet assembly of claim 77, wherein the monolithic physical adsorbent provides a sorbent mass that is conformed in size and shape to the interior volume of the vessel. 90. The gas cabinet assembly of claim 89, wherein the sorbent mass occupies at least 60% of the interior volume of the vessel. 91. The gas cabinet assembly of claim 89, wherein the sorbent mass occupies from about 75% to about 95% of the interior volume of the vessel. 92. The gas cabinet assembly of claim 77, wherein the physical adsorbent is a pyrolysis product of an organic resin. 93. The gas cabinet assembly of claim 77, wherein the physical adsorbent has been formed in situ in the vessel. 94. The gas cabinet assembly of claim 51, wherein the fluid comprises a fluid having utility in semiconductor manufacturing. 95. The gas cabinet assembly of claim 94, wherein the fluid comprises a fluid species selected from the group consisting of arsine, phosphine, hydrogen selenide, hydrogen telluride, nitrogen trifluoride, boron trifluoride, boron trichloride, diborane, trimethylsilane, tetramethylsilane, disilane, silane, germane, and organometallic gaseous reagents. 96. The gas cabinet assembly of claim 61, wherein the fluid has a pressure in said interior volume not exceeding about 1500 torr. 97. The gas cabinet assembly of claim 51, wherein the fluid has a pressure in said interior volume not exceeding about 700 torr. 98. The gas cabinet assembly of claim 51, wherein the fluid has a pressure in said interior volume in a range of from about 400 to about 700 torr. 99. The gas cabinet assembly of claim 51, wherein the vessel comprises a material of construction selected from the group consisting of metals, glasses, ceramics, vitreous materials, polymers, and composite materials. 100. The gas cabinet assembly of claim 99, wherein the vessel comprises a metal material of construction. 101. The gas cabinet assembly of claim 100, wherein said metal is selected from the group consisting of steel, stainless steel, aluminum, copper, brass, bronze, and alloys thereof. 102. The gas cabinet assembly of claim 51, wherein the physical adsorbent comprises a sorbent material selected from the group consisting of carbon, activated carbon, metal-impregnated carbon, molecular sieve (aluminosilicate) materials, porous silicon, silica, alumina, styrene divinylbenzene polymeric materials, sorptive clays, and functionalized sintered glass media. 103. The gas cabinet assembly of claim 51, wherein the physical adsorbent comprises carbon. 104. The gas cabinet assembly of claim 51, wherein the physical adsorbent comprises activated carbon. 105. A gas cabinet assembly comprising: a vented gas cabinet defining an enclosed interior volume and including flow circuitry in said interior volume arranged for dispensing of process gas from the cabinet; a process gas source disposed in the interior volume of the gas cabinet and coupled in gas supply relationship to the flow circuitry; a ventilation gas source arranged for feeding ventilation gas to the vented gas cabinet; a ventilation gas outlet for discharging ventilation gas from the vented gas cabinet; and a point-of-use scrubber disposed in the interior volume of the vented gas cabinet, arranged to remove scrubbable contaminant from the ventilation gas prior to discharge of the ventilation gas from the vented gas cabinet via the ventilation gas outlet. 106. The gas cabinet assembly of claim 105, wherein the point-of-use scrubber comprises a chemisorbent medium reactive with contaminant in the ventilation gas for reactive removal thereof from the ventilation gas. 107. The gas cabinet assembly of claim 105, wherein the process gas source comprises a gas storage and dispensing vessel containing a physical sorbent having sorptive affinity for the process gas. 108. The gas cabinet assembly of claim 107, wherein the physical sorbent comprises carbon. 109. The gas cabinet assembly of claim 107, wherein the physical sorbent comprises activated carbon. 110. The gas cabinet assembly of claim 105, wherein the process gas comprises a gas having utility in semiconductor manufacturing. 111. The gas cabinet assembly of claim 110, wherein the process gas comprises a gas selected from the group consisting of arsine, phosphine, hydrogen selenide, hydrogen telluride, nitrogen trifluoride, boron trifluoride, boron trichloride, diborane, trimethylsilane, tetramethylsilane, disilane, silane, germane, and organometallic gaseous reagents.
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