摘要:
The object of the present invention is to provide a plasma processing apparatus wherein plasma is generated in process chamber to treat a sample. Said plasma processing apparatus is further characterized in that multiple closely packed through-holes are formed on the plate installed on the UHF antenna arranged opposite to the sample, an optical transmitter is installed almost in contact with the back of the through-holes, and an optical transmission means is arranged on the other end of said optical transmitter, thereby measuring optical information coming from the sample and plasma through optical transmitter and optical transmission means by means of a measuring instrument. No abnormal discharge or particle contamination occur to through-holes even in long-term discharge process, and no deterioration occurs to the optical performance at the end face of the optical transmitter. Said plasma processing apparatus ensures stable and high precision measurement of the state of the surface of sample and plasma for a long time.
摘要:
A wafer processing apparatus comprising a wafer stage, wherein a semiconductor wafer is mounted on the wafer stage so as to process the semiconductor wafer, wherein a holding mechanism of the wafer stage is commonly used for a plurality of wafer stages, and accordingly, the wafer stage can be changed into a wafer stage having a different function so as to process the semiconductor wafer.
摘要:
In the plasma processing apparatus for generating plasma in a processing chamber and processing a wafer by mutual action of electromagnetic waves radiated from a UHF band antenna installed in the processing chamber and a magnetic field formed by a magnetic field generator installed around the processing chamber, a hollow tube having one end in communication with an opening in the side wall of the processing chamber and another end, outside the processing chamber, which has a measuring window of plasma optical emission. By setting the lines of force of the magnetic field formed by the magnetic field generator so as to form an angle relative to the hollow tube, entry of plasma into the hollow tube can be prevented, and adhesion of deposits onto the measuring window can be suppressed, whereby the transmission factor of the measuring window can be kept constant over a long period of use.
摘要:
A plasma processing apparatus has plasma generating means including a means for generating capacitive coupled discharge and a means for radiating electromagnetic waves, so that the energy state of electrons is independently controlled by a combination of a plasma due to capacitive coupled discharge and a plasma due to radiation of electromagnetic waves of a high-frequency, to thereby control the occurrence of radical species, and thereby establishing a compatibility, for example, between high selective etching and high accuracy and high speed in etching or between film quality and film formation rate. Since the density distribution of the plasma can be controlled without any change in hardware configuration by adjusting distributions of the power for capacitive coupled discharge and the power for radiation of electromagnetic waves, the entire surface of a large-sized substrate can be etched at a high accuracy into a fine pattern. The apparatus is also intended to prevent the occurrence of dust caused by plasma processing and changes in characteristics of plasma processing, and hence to enhance productivity of semiconductor devices and/or liquid crystal display elements.
摘要:
A body structure of a motor vehicle includes a roof side rail, a side sill, a center pillar, a floor, a center tunnel and a doubler provided between the side sill and the center tunnel. The doubler has a flat closed cross section formed by the floor and a plurality of U-shaped channels and its lengthwise width is longer than that of the lower end of the center pillar. At the outer end of the doubler there are provided a pillar mating section and a side sill mating section. The doubler is connected by welds at the pillar mating section with the center pillar and at the side sill mating section with the side sill. The center pillar has a yieldable portion thereon and it can absorb an impact energy by bending itself. The center tunnel has a reinforcement panel reinforced from underneath.
摘要:
Provided is a vinyl chloride resin composition for powder molding comprising:(1) 100 parts by weight of a vinyl chloride resin powder having an average polymerization degree p of 600 to 3000 and an internal pore volume of 0.20 ml/g or more,(2) 80 to 150 parts by weight of a trimellitic ester having an alkyl group with a principal chain having an average carbon number n of 6 to 9, and(3) 5 to 25 parts by weight of a fine vinyl chloride resin having an average polymerization degree q of 400 to 1300 and a primary grain size distribution of two modes in which a smaller mode falls in a grain size range of 0.1 to 0.4 .mu.m and a larger mode falls in a grain size range of 0.9 to 1.4 .mu.m,wherein the parts by weight L of the trimellitic ester shown in (2), p and n each described above have the relation satisfying an equation (I):5
摘要:
A body structure of a motor vehicle includes a roof side rail, a side sill, a center pillar, a floor, a center tunnel, and a doubler provided between the side sill and the center tunnel. The doubler has a flat closed cross section formed by the floor and a plurality of U-shaped channels and its lengthwise width is longer than that of the lower end of the center pillar. At the outer end of the doubler there are provided a pillar mating section and a side sill mating section. The doubler is connected by welds at the pillar mating section with the center pillar at the side sill mating section with the side sill. The center pillar has a yieldable portion thereon and it can absorb an impact energy by bending with respect to itself. The center tunnel has a reinforcement panel reinforced from underneath.
摘要:
A side body structure of a motor vehicle includes a first and second crash boxes at the connecting portion of a side sill and a rear wheel arch. The first crash box is provided outside of a side sill reinforcement and the second crash box is inside the side sill reinforcement. The second crash box is connected with a cross member extended in a transversal direction of the vehicle. In the event of a side impact, first the first crash box collapses and then the second crash box does. Finally, the impact energy is transferred to and absorbed by other body structures through the cross member. The side sill portion and the rear wheel arch portion can be prevented from intruding into a rear compartment so as to save passengers from serious injury.
摘要:
A front frame structure of a cab over type vehicle comprises a side member provided in a longitudinal direction of the vehicle, an aluminum-made frame section connected with the front end of the side member, a front cross member connected with the front end of the frame section, a front bumper provided adjacent to the he front cross member, and an aluminum foam inserted in the frame section. When a head-on impact is applied to the vehicle body, an impact energy is transmitted to the aluminum-made frame section through the bumper and the front cross member and the frame section is subjected to a buckling deformation together with the aluminum foam contained therein. The impact energy can be effectively absorbed within a small crush space of the vehicle.