摘要:
A plasma processing system provided with a vacuum chamber for accommodating a substrate and for generation of plasma in a space in the front of the same, an antenna provided at the vacuum chamber, and a high frequency power source for supplying high frequency power to the antenna. The antenna emits high frequency power, generates plasma inside the vacuum chamber, and processes the surface of the substrate by the plasma. In the plasma processing system, the antenna has a disk-shaped conductor plate having a predetermined thickness. A coaxial waveguide having a folded portion is formed around the disk-shaped conductor plate. The folded portion of the waveguide is provided with a short-circuit 3 dB directional coupler having an impedance matching function. The antenna having the above structure prevents the generation of a standing wave in the high frequency wave propagation path from the high frequency power source to the vacuum chamber and generates high density plasma by supply of a large power. Due to this, processing of a large area substrate becomes possible.
摘要:
A plasma generating apparatus and processing method, which generate high-density plasma, even in the central portion of the plasma generating zone. The apparatus comprises rectangular electrodes, a rectangular fistulous discharge electrode which surrounds the plasma generating zone, and a vacuum chamber of rectangular cross-section. Permanent magnets surround the discharge electrode, produce predetermined magnetic lines of force with portions which extend approximately parallel to the central axis of discharge electrode. A pair of parallel plate electrodes define the extension of the plasma generating zone in the direction of the central axis of the discharge electrode. The apparatus is configured such that the magnetic lines of force passing through the central portion of the plasma generating zone do not intersect with the electrodes.
摘要:
An apparatus for processing particulate dust when a substrate is arranged in a high vacuum enclosure, plasma is generated in the high vacuum enclosure, and a reactive material is introduced into the high vacuum enclosure to perform processing of the substrate. At least one collecting electrode is provided around the substrate in the high vacuum enclosure other than the electrode that generates plasma, and particulates generated in plasma are efficiently removed by applying a predetermined electric potential of a direct-current or an alternating current to the collecting electrode, and thus a deposition problem onto an inner wall of the vacuum enclosure and a deterioration problem of processing accuracy and a film quality associated with flowing of the particulates onto the substrate are solved.
摘要:
An object is to make it possible to prevent electron temperature distribution from becoming uneven at surface of a process object when dimensions of the process object are large. A region division unit 30 encloses the inside of a ring-shaped discharge electrode 15 in the vicinity of that discharge electrode 15, thereby dividing the interior region of a tube-shaped vacuum vessel 11 in a direction perpendicular to the center axis Z thereof into a plasma generation region R1 and a plasma diffusion region R2, This region division unit 30 has a tube-shaped grid 301. This grid 301 has a plurality of electron passing holes and exhibits electrical conductivity. This grid 301, furthermore, is set in place concentrically with the vacuum vessel 11 so as to be positioned on the outside of a substrate W.
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:
Provided is a portable wireless device capable of preventing deterioration in performance of an antenna caused by reverse phase current. The portable wireless device (100) comprises at least two box-shaped housings each of which is formed by fitting respective annular fitting surfaces of two cases. Further, in the portable wireless device (100), a first circuit board (110) is provided in a first housing (101). A second circuit board (115) is provided in a second housing (102). A signal line (119) electrically connects the first circuit board (110) and the second circuit board (115). A waterproofing packing (116) has an annular shape, and is provided between the fitting surfaces of the two cases and held by the two cases which constitute the second housing (102). A conductive element (118) is integrally formed with the waterproofing packing (116), electrically connected to an end of the second circuit board (115), and electrically connected to the signal line (119).
摘要:
In an information terminal apparatus with a camera having a rotating function, the object of the invention is to impart a predetermined torque to a camera so as to render the camera easily rotatable by the force of a finger in a desired direction and to continue its state of standstill when the rotation is stopped.An information terminal apparatus with a camera having a rotating function in accordance with the invention comprises: a camera unit including a cylindrical member 62 having a shaft portion 62C at one end thereof and for accommodating a camera therein, and an annular member 72 which is fitted over the shaft portion 62C; a main body portion 1 having a bearing portion 42 for holding the annular member 72 and for rotatably supporting the camera unit; and an elastic member 74 provided between the main body portion 1 and the cylindrical member 72, wherein the elastic member 74 is arranged to impart a direction-of-axis force in an axial direction of the camera unit while moving together with the rotation of the camera unit.
摘要:
A mobile terminal includes: a first body including an operation part; a second body including a display; and a connector which rotatably connects the first body and the second body. The connector is connected to the first body, and rotates with respect to the first body about a first rotating shaft. The connector is connected to a lateral end of the second body, and rotates with respect to the second body about a second rotating shaft orthogonal to the first rotating shaft. A first fitting portion is formed on a connected surface of the connector to be connected with the second body. A second fitting portion which is fitted to the first fitting portion, is formed on the second body. When the second body relatively rotates about the second rotating shaft to overlap the connector on the connected surface, the first fitting portion fits to the second fitting portion.
摘要:
A method for producing particles having a monocrystalline diamond structure, comprises the steps of operating a plasma chamber (100) containing a reaction gas with at least one carbon compound and generating a reactive plasma, providing seed particles in said plasma chamber (100) which are arranged under the influence of external gravity compensating forces within the reactive plasma, and polydirectional growing carbon with diamond structure on said seed particles, so that growing diamond containing particles are formed.
摘要:
A portable radio having a housing 10 made up of a combination of a first case 11 and a second case 12 includes: an annular resilient member 13 sandwiched between the first case 11 and the second case 12; a flexible printed board 14 that is formed integrally with the annular resilient member 13 and that is provided in at least an area surrounded by the annular resilient member 13; an antenna section 15 that is provided on the flexible printed board 14 while being folded along a plurality of inner wall surfaces which are oriented in mutually different orientations and which belong to at least one of the first case 11 and the second case 12; and a circuit board 17 placed within an area surrounded by the annular resilient member 13.