Abstract:
A method of producing a fiber, comprising the steps of introducing catalytic particles originally formed in a particle-forming chamber into an arraying chamber together with a carrier gas, to cause the catalytic particles to become arranged on a substrate disposed in the arraying chamber. A next step includes growing fibers, each including carbon as a major component, based on the catalytic particles arranged on the substrate. The fibers grow by heating the catalytic particles arranged on the substrate in an atmosphere containing carbon.
Abstract:
An electronic device of the invention includes a tip emitter formed in a well that is defined in a substrate. An extractor disposed about the well extracts emissions from the tip emitter. A wide lens focuses the emissions through its opening. The opening is sufficiently large and spaced far enough away to encompass the majority of a divergence angle of the emissions. The emissions are focused into a spot.
Abstract:
A method of manufacturing an electronic device in which a substrate with a pair of electrodes is provided and a carbon nanotube is formed or arranged to electrically connect the electrodes.
Abstract:
A field-emission cathode having an emitter provided with a substrate, an emitter electrode layer, an insulating layer, a gate electrode layer, the layers being formed on the substrate in this order, needlelike projections for electron emission provided on the emitter electrode layer in a gate opening from which the insulating layer and the gate electrode layer are removed and each grown from one point in a given direction, and different projections for electron emission formed on all or part of the projections. The projections of the emitter are made of metallic particles, and thereby the manufacturing cost is lowered.
Abstract:
A mixed body made of at least nickel powder and electron emission agent powder is sintered through a hot isostatic pressing process to form a sintered body, and a cathode pellet is formed from the sintered body. Then, the cathode pellet Is inserted into a cup. Then, the cathode pellet and the cup are clamped between upper and lower welding electrodes each having approximately the same diameter as the cathode pellet, and the cathode pellet and the cup are subjected to resistance welding in this clamped state. Then, an assembly of the cathode pellet and the cup is inserted and fixed in an end portion of a sleeve, and a heater is inserted into the sleeve.
Abstract:
The present invention relates to a cathode for an electron gun for increasing its life cycle under a high current density load by ensuring a diffusion path of reducing component served for generating free radical barium. The present invention discloses a cathode for an electron gun comprising a base metal composed of nickel and at least one kind of reducing component, an upper metal layer formed by spraying powder to the surface of the base metal, implanting Ni thereto, or grinding the surface thereof and heating it, and an electron emitting layer containing alkaline earth metal oxide including at least barium on the upper metal layer.
Abstract:
A method of manufacturing a cold cathode type electron emitting device, comprising forming a pair of electrodes, which are spaced from each other, on a substrate, forming conductive thin films, which are electrically connected with the pair of electrodes and have a cracked portion therebetween, on a space between the pair of electrodes, forming conductive deposits on the cracked portion of the conductive thin films to form an electron emission section, and subjecting the electron emission section to a treatment using plasma to expand a gap between the conductive deposits on the cracked portion.
Abstract:
An electron emissive composition comprises a barium tantalate composition in an amount of about 50 to about 95 wt %; and a ferroelectric oxide composition in an amount of about 5 to about 50 wt %, wherein the weight percents are based on the total weight of the barium tantalate composition and the ferroelectric oxide composition. A method for manufacturing an electron emissive composition comprises blending a barium tantalate composition in an amount of about 50 to about 95 wt % with a ferroelectric oxide composition in an amount of about 5 to about 50 wt % to form an electron emissive precursor composition, wherein the weight percents are based on the total weight of the barium tantalate composition and the ferroelectric oxide composition; and sintering the composition at a temperature of about 1000null C. to about 1700null C.
Abstract:
Disclosed is an emitter composition of a field emission cell that is printed on a cathode substrate of a display to be applied to an electron emission source, including a carbon nanotube, a binder, glass frit, a dispersing agent and an organic solvent, characterized by further having 0.1-20 w % of diamond. Further, a manufacturing method of the emitter composition and a field emission cell using the emitter composition are also provided. In the current invention, since the field emission cell has the carbon nanotube and the diamond distributed simultaneously therein, it has a relatively high current density even at the same driving voltage, thereby improving emitting properties. In addition, the field emission cell is advantageous in terms of superior printability and stable field emission, while reducing various expenses required to operate and repair constitutive parts thereof.
Abstract:
A sensor chip and a lens mount accommodating therein the sensor chip are mounted on a surface of a wiring substrate and a lens holder accommodating a lens therein is coupled with the lens mount. On a rear surface of the wiring substrate, a logic chip, a memory chip and a passive component are mounted and they are sealed with a seal resin. An electrode pad of the sensor chip is electrically connected to an electrode on the surface of the wiring substrate via a bonding wire but a stud bump is also formed on the electrode at the surface of the wiring substrate and this stud bump is connected with the bonding wire. On the surface of the wiring substrate, a flexible substrate is bonded with an anisotropic conductive film and a bonding material. When a camera module is to be manufactured, the surface side of the wiring substrate is assembled after the rear surface side of the wiring substrate is assembled.