摘要:
To improve an actual exhaust speed, in a vacuum processing device for processing a work located in a vacuum processing chamber by using a processing gas introduced into the vacuum processing chamber, the vacuum processing device having means for introducing the processing gas into the vacuum processing chamber, means for controlling a gas flow of the processing gas, and means for exhausting the processing gas after the work is processed by the processing gas; the exhausting means comprises an exhaust pump, a buffer space extended in a direction substantially perpendicular to a center of the work with an extended area larger than a size of a suction port of the exhaust pump, and a gas outlet formed on a back side of a surface of the work to be processed, the gas outlet having a size substantially equal to or larger than the size of the suction port of the exhaust pump.
摘要:
To improve an actual exhaust speed, in a vacuum processing device for processing a work located in a vacuum processing chamber by using a processing gas introduced into the vacuum processing chamber, the vacuum processing device having means for introducing the processing gas into the vacuum processing chamber, means for controlling a gas flow of the processing gas, and means for exhausting the processing gas after the work is processed by the processing gas; the exhausting means comprises an exhaust pump, a buffer space extended in a direction substantially perpendicular to a center of the work with an extended area larger than a size of a suction port of the exhaust pump, and a gas outlet formed on a back side of a surface of the work to be processed, the gas outlet having a size substantially equal to or larger than the size of the suction port of the exhaust pump. Further, the exhaust arrangement can be provided at a shifted position so as to allow a work space beneath a work table.
摘要:
A microwave penetrating window and a cavity which are substantially equal in diameter to a plasma generating chamber are successively connected to the plasma generating chamber and microwaves are introduced via the cavity into the plasma generating chamber. A processing gas in the plasma generating chamber is converted into a plasma by means of the microwaves introduced into the plasma generating chamber and the microwaves in specific modes are resonated in between a microwave reflective interface with the plasma generated in the plasma generating chamber and the reflective edge face of the cavity. The microwaves in the specific modes are thus formed in the cavity and the energy of the microwaves in the specific modes is increased by resonance. The boosted energy is added to the plasma and the plasma is densified accordingly. Moreover, a plasma excellent in uniformity and stability can be generated by resonating the microwaves in the specific modes in the presence of a uniform electromagnetic field.
摘要:
A wafer processing apparatus comprises a vacuum processing chamber, and a wafer holder disposed within the vacuum processing chamber to hold a wafer to be processed fixedly thereon by electrostatic attraction. A cooling or heating gas is supplied into the space between the surface of the wafer holder and the backside of a wafer set on the wafer holder to cool or heat the wafer. In case the electrostatic attraction disappears accidentally due to, for example, power failure, the cooling or heating gas in the space between the surface of the wafer holder and the backside of the wafer set on the wafer holder is discharged quickly upon the disappearance of the electrostatic attraction between the wafer holder and the wafer to prevent the wafer being caused to float and being dislocated by the pressure of the cooling or heating gas existing in the space between the surface of the wafer holder and the backside of the wafer.
摘要:
Outer side sill member includes an upper wall section slanting upward in a horizontal, outer-to-inner direction, and a lower wall section slanting downward in the horizontal, outer-to-inner direction. At least one of upper and lower wall sections of the outer side sill member has a channel-shaped bead extending along the side sill, so that the side sill has a polygonal closed sectional shape extending in the front-rear direction of the vehicle. The bead has a bottom portion having a width greater than a vertical dimension in a direction orthogonal to the surface of the bottom portion. Each of bulkheads, partitioning the interior of the side sill, is fixedly joined to the outer side sill member with its recessed edge portion substantially fittingly engaging with the bottom portion of the depressed wall portion of the outer side sill member.
摘要:
A vehicle body structure for securing sufficient interior space and for opposing the load for forcing the suspension to fall sideward by effectively using the existing members of the body structure, thereby improving the rigidity of the vehicle body. The structure has damper bases provided at both sides of the vehicle; a cross member portion between the damper bases; and gussets fastened to both ends of the cross member portion. Each gusset is attached at the outside of an interior of the vehicle to an upper wall and a side wall of each damper base, and typically has an upper wall combined with a bottom face of the upper wall of the damper base; a side wall fastened to an outer face of the side wall of the damper base; and front and rear walls, each being joined to the upper and side walls of the gusset.
摘要:
A method and system of holding a substrate where foreign substances on the back surface can be decreased. The substrate holding system comprises a ring-shaped leakage-proof surface having a smooth surface on the specimen table corresponding to the periphery of the substrate, a plurality of contact holding portions within the periphery of the substrate, and electrostatic attraction means for fixing the substrate by contacting the back surface of the substrate to the ring-shaped leakage-proof surface and the contact holding portions. The substrate contacts to the cooling surface at the ring-shaped leakage-proof surface and the contact holding portion placed on a position inside the ring-shaped leakage-proof surface. The back surface of the substrate and the cooling surface do not contact to each other in the large portion of the remaining area.
摘要:
In a method of holding a substrate and a substrate holding system where, the amount of foreign substances on the back surface of the substrate can be decreased and only a small amount of foreign substances transferred from a mounting table to the substrate. For this purpose, the substrate holding system has a ring-shaped leakage-proof surface providing a smooth support surface on the specimen table corresponding to the periphery of the substrate, a plurality of contact holding portions which bear against the substrate on the specimen table between the corresponding position to the periphery of the substrate and the corresponding position to the center of the substrate, and electrostatic attraction means for fixing the substrate by contacting the back surface of the substrate to the ring-shaped leakage-proof surface and the contact holding portions. The substrate is exposed to a cooling surface at the ring-shaped leakage-proof surface and the contact holding portion placed at a position inside the ring-shaped leakage-proof surface. The back surface of the substrate and the cooling surface do not contact each other in the large portion of the remaining area.
摘要:
A vacuum treating apparatus having a vacuum treating chamber for treating a to-be-treated substrate in vacuum, includes a plurality of substrate cassettes which are installed in the open air and hold substrates that are to be conveyed into the vacuum treating chamber, a device for conveying the substrates between the substrate cassettes and the vacuum treating chamber, and a device which selects either that the to-be-treated substrate after treated in the vacuum treating chamber be held in the substrate cassette from which the to-be-treated substrate was taken out or that the to-be-treated substrate after treated in the vacuum treating chamber be held in another substrate cassette which is different from the substrate cassette.
摘要:
An air nozzle for use in the production of nonwoven fabric that is adapted to receive spun filaments from a spinning nozzle and feed the filaments in an air jet into a receiver. The air nozzle is directed to the prevention of any abrasion of the inner surface of the nozzle body by an additive, such as titanium white, contained in filaments, and thus to the prevention of any defects in the nonwoven fabric. The inner surface of a nozzle body for guiding filaments is formed using a ceramic material to protect that surface. The nozzle body has a conical passage whose diameter gradually decreases from an inlet for receiving the filaments from the spinning nozzle, and a straight passage continuing from the conical passage and extending with a constant diameter, at least part of the inner surface of the conical passage and/or the straight passage being formed as a ceramic surface.