Abstract:
Apparatus and method for volatilizing a source reagent susceptible to particle generation or presence of particles in the corresponding source reagent vapor, in which such particle generation or presence is suppressed by structural or processing features of the vapor generation system. Such apparatus and method are applicable to liquid and solid source reagents, particularly solid source reagents such as metal halides, e.g., hafnium chloride. The source reagent in one specific implementation is constituted by a porous monolithic bulk form of the source reagent material. The apparatus and method of the invention are usefully employed to provide source reagent vapor for applications such as atomic layer deposition (ALD) and ion implantation.
Abstract:
Apparatus and method for determining endpoint of a fluid supply vessel in which fluid flow is controlled through a flow passage disposed in an interior volume of the fluid supply vessel with a static flow restricting device and a selectively actuatable valve element upon establishing fluid flow. The endpoint determination can be employed to terminate fluid supply from the fluid supply vessel and/or to switch from a fluid-depleted supply vessel to a fresh vessel for continuity or renewal of fluid supply operation. The apparatus and method are suitable for use with fluidutilizing apparatus such as ion implanters.
Abstract:
A porous carbon composite having porosity that is at least partially filled with material imparting to the composite an enhanced character with respect to characteristics selected from the group consisting of hardness, wear-resistance and toughness, as compared with the nanoporous carbon alone. Porous carbon material is also described as a storage medium for chlorine gas, or as a hydrogen storage medium, e.g., for hydrogen fuel cells.
Abstract:
A monitoring system (100) for monitoring fluid in a fluid supply vessel (22, 24, 26, 28, 108) during operation including dispensing of fluid from the fluid supply vessel. The monitoring system includes (i) one or more sensors (114, 126) for monitoring a characteristic of the fluid supply vessel or the fluid dispensed therefrom, (ii) a data acquisition module (40, 132, 146) operatively coupled to the one or more sensors to receive monitoring data therefrom and responsively generate an output correlative to the characteristic monitored by the one or more sensors, and (iii) a processor (50, 150) and display (52, 150) operatively coupled with the data acquisition module and arranged to process the output from the data acquisition module and responsively output a graphical representation of fluid in the fluid supply vessel, billing documents, usage reports, and/or resupply requests.
Abstract:
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.
Abstract:
A vessel having a drawn seamless tube closed at one end to define an interior volume holding a monolithic carbon adsorbent that is confonned in size and shape to the interior volume of the drawn seamless tube and occupies at least 60% of said interior volume is described. The drawn seamless tube having an opposite end to which a top plate member is welded, with a fluid dispensing assembly secured to the top plate member. By the use of the adsorbent media, a 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.
Abstract:
Apparatus and method for dispensing a gas using a gas source (102) coupled in selective flow relationship with a gas manifold (126). The gas manifold (126) including flow circuitry (110) for discharging gas to a gas-using zone, and the gas source (126) includes a pressure-regulated gas source vessel (126) containing the gas at superatomospheric pressure.
Abstract:
Apparatus and method for determining endpoint of a fluid supply vessel in which fluid flow is controlled through a flow passage disposed in an interior volume of the fluid supply vessel with a static flow restricting device and a selectively actuatable valve element upon establishing fluid flow. The endpoint determination can be employed to terminate fluid supply from the fluid supply vessel and/or to switch from a fluid-depleted supply vessel to a fresh vessel for continuity or renewal of fluid supply operation. The apparatus and method are suitable for use with fluidutilizing apparatus such as ion implanters.
Abstract:
Carbonaceous materials are described, having utility for fluid storage/dispensing and desulfurization applications. The carbonaceous material in one implementation is a nanoporous carbon composite having porosity that is at least partially filled with material imparting to the composite an enhanced character with respect to characteristics selected from the group consisting of hardness, wear-resistance and toughness, as compared with the nanoporous carbon alone. Another implementation utilizes porous carbon material as a storage medium for chlorine gas. A further implementation utilizes porous carbon material as a hydrogen storage medium, e.g., for hydrogen fuel cells. In another implementation, porous carbon material is employed as a sorbent medium in a fluid storage and dispensing system, in an arrangement of multiple porous carbon articles, and positional stabilization structure is employed to restrain the arrangement against movement. Infrared emitter devices are described, which utilize carbon adsorbent to store silane for reaction with oxygen in a controlled manner. An arrangement in which carbon adsorbent is desorbed of residual fluid by resistive and/or inductive heating of the adsorbent is described. Also described is a method of increasing the loading capacity of a porous carbon adsorbent, by contacting of the carbon adsorbent with a swelling agent, followed by contacting of the carbon adsorbent with a pressurized gaseous penetration agent, and by removal of the swelling agent and penetration agent.
Abstract:
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.