摘要:
There is provided an iridium tip including a pyramid structure having one {100} crystal plane as one of a plurality of pyramid surfaces in a sharpened apex portion of a single crystal with orientation. The iridium tip is applied to a gas field ion source or an electron source. The gas field ion source and/or the electron source is applied to a focused ion beam apparatus, an electron microscope, an electron beam applied analysis apparatus, an ion-electron multi-beam apparatus, a scanning probe microscope or a mask repair apparatus.
摘要:
A method of fabricating metallic Cu nanowires with lengths up to about 25 μm and diameters in a range 20-100 nm, or greater if desired. Vertically oriented or laterally oriented copper oxide structures (CuO and/or Cu2O) are grown on a Cu substrate. The copper oxide structures are reduced with 99+ percent H or H2, and in this reduction process the lengths decrease (to no more than about 25 μm), the density of surviving nanostructures on a substrate decreases, and the diameters of the surviving nanostructures have a range, of about 20-100 nm. The resulting nanowires are substantially pure Cu and can be oriented laterally (for local or global interconnects) or can be oriented vertically (for standard vertical interconnects).
摘要:
This invention provides a process for improving the field emission of an electron field emitter comprised of an acicular emitting substance such as acicular carbon, an acicular semiconductor, an acicular metal or a mixture thereof, comprising applying a force to the surface of the electron field emitter wherein the force results in the removal of a portion of the electron field emitter thereby forming a new surface of the electron field emitter.
摘要:
This invention provides a process for improving the field emission of an electron field emitter comprised of an acicular emitting substance such as acicular carbon, an acicular semiconductor, an acicular metal or a mixture thereof, comprising applying a force to the surface of the electron field emitter wherein the force results in the removal of a portion of the electron field emitter thereby forming a new surface of the electron field emitter.
摘要:
A process for making nanostructures on a support, including: supplying a support including a surface layer on one of its faces, covering the surface layer by a catalyst layer structured according to a pattern exposing areas of the surface layer covered by the catalyst and areas of the surface layer not covered by the catalyst, etching the thickness of the surface layer in the areas not covered by the catalyst layer, and selectively growing nanostructures on the areas of the surface layer covered by the catalyst. The process can also be used to make cathode structures with electrically independent nanostructures.
摘要:
A method for making carbon nanotube particulates involves providing a catalyst comprising catalytic metals, such as iron and molybdenum or metals from Group VIB or Group VIIIB elements, on a support material, such as magnesia, and contacting the catalyst with a gaseous carbon-containing feedstock, such as methane, at a sufficient temperature and for a sufficient contact time to make small-diameter carbon nanotubes having one or more walls and outer wall diameters of less than about 3 nm. Removal of the support material from the carbon nanotubes yields particulates of enmeshed carbon nanotubes that retain an approximate three-dimensional shape and size of the particulate support that was removed. The carbon nanotube particulates can comprise ropes of carbon nanotubes. The carbon nanotube particulates disperse well in polymers and show high conductivity in polymers at low loadings. As electrical emitters, the carbon nanotube particulates exhibit very low “turn on” emission field.
摘要:
An electron emission film having a pattern of diamond in X-ray diffraction and formed of a plurality of diamond fine grains having a grain diameter of 5 nm to 10 nm is formed on a substrate. The electron emission film can restrict the field intensity to a low level when it causes an emission current to flow, and has a uniform electron emission characteristic.
摘要:
Provided are a composition for preparing an electron emission source, including a nano-sized inorganic material and a vehicle, a method for preparing an electron emission source using the composition, an electron emission source including a nano-sized inorganic material and a small amount of a residual carbon, and further, an electron emission device including the electron emission source.
摘要:
A field emission plane light source generally incorporates an anode and a cathode. The anode includes an anode substrate, an anode conductive layer formed on a surface of the anode substrate, and a fluorescent layer formed on the anode conductive layer. The cathode includes a cathode substrate facing and separated from the anode substrate, a cathode conductive layer formed on a surface of the cathode substrate, and an electron emission layer formed on the cathode conductive layer and facing the fluorescent layer of the anode. The cathode and anode substrates have a seal formed therebetween. The electron emission layer includes a glass matrix and a plurality of carbon nanotubes, metallic conductive particles and getter powders dispersed therein. A method for making such field emission plane light source is also provided.
摘要:
There is provided an electron-emitting device of a field emission type, with which the spot size of an electron beam is small, an electron emission area is large, highly efficient electron emission is possible with a low voltage, and the manufacturing process is easy. The electron-emitting device includes a layer 2 which is electrically connected to a cathode electrode 5, and a plurality of particles 3 which contains a material having a resistivity lower than that of a material constituting the layer 2, and is wherein a density of particles 3 in the layer 2 is 1×1014/cm3 or more and 5×1018/cm3 or less.
摘要翻译:提供了一种场致发射型电子发射装置,其电子束的光点尺寸小,电子发射面积大,电子发射能够以低电压发射,制造工艺容易 。 电子发射器件包括电连接到阴极电极5的层2和包含电阻率低于构成层2的材料的电阻率的多个颗粒3,其中颗粒的密度 层2中的3为1×10 14 / cm 3以上且5×10 18 / cm 3以下。