摘要:
The object of the present invention is to make possible generation of high-density plasma even in the center of a plasma generation region. A plasma generation apparatus comprises a vacuum vessel 11, gas induction unit 12, exhaust unit 13, cylindrical discharge electrode 14, high-frequency oscillators 19 and 21, ring-shaped permanent magnets 15 and 16, and two disk-shaped walls 17 and 18. The discharge electrode 14 is fashioned so as to enclose a plasma generation region 41. The permanent magnets 15 and 16 form prescribed magnetic force lines. These magnetic force lines have portions that are roughly parallel to the center axis 42 of the discharge electrode 14, the lengths of which parallel portions become longer as the magnetic force lines approach the center axis 42. The two walls 17 and 18 define the scope of the plasma generation region 41 in the dimension of the center axis 42 of the discharge electrode 14. These two walls 17 and 18 are positioned so as to sandwich therebetween the plasma generation region 41 in the dimension of the center axis 42. The plasma generation apparatus is also configured so that the magnetic force lines 43 passing through the center of the plasma generation 41 are shaped so that they do not intersect the two walls 17 and 18.
摘要:
A method for conformally coating a microtextured surface. The method includes flash evaporating a polymer precursor forming an evaporate, passing the evaporate to a glow discharge electrode creating a glow discharge polymer precursor plasma from the evaporate, cryocondensing the glow discharge polymer precursor plasma on the microtextured surface and crosslinking the glow discharge polymer precursor plasma thereon, wherein the crosslinking resulting from radicals created in the glow discharge polymer precursor plasma.
摘要:
A glass material for use in a microwave-transparent window of a plasma processing apparatus is provided. The glass material has not only good properties similar to those of quartz glass but a corrosion resistance particularly to fluorine-containing plasma. The glass having the corrosion resistance to the fluorine-containing plasma is composed of a first glass phase consisting of Si and O and a second glass phase consisting of Si, Al and O. The second glass phase has a mass ratio of Al to Si of at least 0.01. The glass member is useful as a component for forming an electromagnetic-wave introducing window of the plasma processing apparatus or the like.
摘要:
A process chamber used in the manufacture of a semiconductor device for etching a material layer on a semiconductor wafer includes an electrostatic chuck for holding the semiconductor wafer, and an annular edge ring which surrounds the side of the semiconductor wafer on the electrostatic chuck to prevent the semiconductor wafer from departing from its original position. The annular edge ring has a first side which faces the side of the semiconductor wafer and contacts firmly with the side of the semiconductor wafer.
摘要:
A slot antenna plate is placed on a second dielectric for radiating microwave into a chamber interior, the slot antenna plate being provided on a side of the second dielectric that faces the chamber interior. The slot antenna plate is made of conductor and includes slots for passing the microwave there through to the chamber interior. In this way, a plasma processing apparatus is provided generating plasma by microwave, the plasma processing apparatus capable of easily adjusting ion irradiation energy for a material to be processed to achieve uniform plasma processing for the material within the plane of the material.
摘要:
The direct detection of dielectric etch system magnet driver and coil malfunctions is disclosed. A dielectric etch system includes a plasma chamber in which a semiconductor wafer is placed to remove dielectric therefrom, and a number of coils positioned around the chamber to excite the plasma. Magnet drivers of a magnet driver circuitry provide configurable preset current from a power source to the coils. Malfunction detection circuitry includes a number of comparators connected in parallel. Each comparator couples between one of the magnet drivers and one of the coils. A relay couples the comparators to ground, and turns off the power source when any of the comparators yields a substantially non-zero current, which indicates that either the driver or the coil coupled to the comparator is malfunctioning.
摘要:
A plasma vacuum pump including an array of permanent magnets, one or more plasma conduits or ducts, components for accelerating plasma ions through these conduits, and supporting structures that together comprise at least one applied plasma duct system (APDS) cell. The APDS cell permits large volumes of particles and plasma to flow rapidly in a preferred direction while constricting the flow of neutral particles in the reverse direction. A plasma pump utilizing APDS technology is intended to permit a large throughput of ionized gas at the intermediate pressures of interest in the plasma-enhanced processing industry, compressing this gas to a pressure at which blower-type pumps can be used efficiently to exhaust the spent processing gas at atmospheric pressure.
摘要:
A plasma processing chamber including a slip cast part having a surface thereof exposed to the interior space of the chamber. The slip cast part includes free silicon contained therein and a protective layer on the surface which protects the silicon from being attacked by plasma in the interior space of the chamber. The slip cast part can be made of slip cast silicon carbide coated with CVD silicon carbide. The slip cast part can comprise one or more parts of the chamber such as a wafer passage insert, a monolithic or tiled liner, a plasma screen, a showerhead, dielectric member, or the like. The slip cast part reduces particle contamination and reduces process drift in plasma processes such as plasma etching of dielectric materials such as silicon oxide.
摘要:
A plasma processing apparatus includes, in order to enhance the planar uniformity of the plasma density in a process space, a process chamber, an insulating plate attached airtightly to the ceiling of the process chamber, a planar antenna member placed above the insulating plate and including microwave radiation holes for transmitting therethrough microwave used for generating plasma, and a shield electrode member placed between the insulating plate and the planar antenna member for blocking out radiation of the microwave from the center and a part therearound of the planar antenna member.
摘要:
There is provided a battery separator comprising synthetic resin fibers, wherein hydrophilization treatment, preferably plasma treatment is applied, and a contact angle to pure water indicates a value of 0 to 100 degrees; an alkali secondary battery in which a electrode group having the separator between a positive electrode and a negative electrode is sealed in a battery case together with an alkali electrolyte, in particular, a nickel-metal hydride secondary battery whose positive electrode is a nickel electrode and whose negative electrode is a hydrogen absorbing alloy electrode, wherein active substances of said nickel electrode comprising powders consisting essentially of nickel hydroxides and higher-order cobalt hydroxides formed a surface of a part or whole thereof are employed, thereby providing its superiority in both of self-discharge properties and charge and discharge cycle life performance.