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公开(公告)号：US4159440A
公开(公告)日：1979-06-26
申请号：US870944
申请日：1978-01-20
申请人： Roger G. Little
发明人： Roger G. Little
摘要： An evacuated enclosure in the form of a cylindrical cavity having a dielectric located therein defines a dielectric guide for transporting an electron beam introduced into the cavity. The dielectric, which is disposed about the cavity wall, is operative to trap the charge associated with normal vacuum expansion of the electron beam. The trapped charge, in cases where the injected electron beam is not space charge limited, modifies the electric fields within the cavity in such a way as to provide focusing forces on the electron beam propagating through the cavity, the focusing forces being sufficient to quide a major portion of the beam through the enclosure without attenuation. Within the injected beam is space charge limited, the trapped charge induces an electrical discharge--either surface flashover or volume puncture of the dielectric--which liberates gaseous material. This gas then ionizes, is attracted by space charge electric fields into the body of the beam, and provides space charge neutralization. In this situation the beam is confirmed by its self-magnetic field and propagates through the cavity with little attenuation.
摘要翻译： 具有位于其中的电介质的圆柱形腔形式的抽真空的外壳限定用于传送引入空腔的电子束的电介质引导件。 围绕腔壁设置的电介质可操作以捕获与电子束的正常真空膨胀相关的电荷。 捕获的电荷在注入的电子束不受空间电荷限制的情况下，以这样的方式改变腔内的电场，以便对通过空腔传播的电子束提供聚焦力，聚焦力足以熄灭 光束通过外壳的主要部分没有衰减。 在注入的光束中，空间电荷受限，捕获的电荷会引起放电 - 释放气体材料的电介质的表面闪络或体积穿透。 然后这种气体电离，被空间电荷的电场吸引到光束的体内，并提供空间电荷中和。 在这种情况下，光束由其自身的磁场确认，并以很小的衰减传播通过腔体。
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22.发明授权
公开(公告)号：US4137477A
公开(公告)日：1979-01-30
申请号：US798315
申请日：1977-05-19
CPC分类号： H01J19/38 , C04B35/524 , H01J1/48 , H01J9/14
摘要： Disclosed are grid electrodes of glassy carbon which have good mechanical and electrical properties and can be manufactured in a simple manner with a great dimensional stability. The grid electrodes may be made by two alternative methods. In one method a body of cured synthetic resin is formed or processed into the shape of the desired electrode, after which it is carbonized. In the second method a preshaped body of cured synthetic resin which is in the unprocessed state, is carbonized after which the resulting glassy carbon body is further processed to the desired electrode, preferably by laser beam cutting.
摘要翻译： 公开了具有良好机械和电学性质的玻璃碳栅电极，并且可以以简单的方式制造具有很好的尺寸稳定性。 栅电极可以通过两种替代方法制成。 在一种方法中，将固化的合成树脂体形成或加工成所需电极的形状，然后将其碳化。 在第二种方法中，将处于未处理状态的固化合成树脂的预成型体碳化，然后将所得玻璃碳体进一步加工成所需电极，优选通过激光束切割。
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公开(公告)号：US10056219B2
公开(公告)日：2018-08-21
申请号：US15603340
申请日：2017-05-23
申请人： ELWHA LLC
发明人： William David Duncan , Roderick A. Hyde , Jordin T. Kare , Max N. Mankin , Tony S. Pan , Lowell L. Wood
CPC分类号： H01J1/48 , H01J3/021 , H01J2203/0232 , Y10T29/49204
摘要： Graphene grids are configured for applications in vacuum electronic devices. A multilayer graphene grid is configured as a filter for electrons in a specific energy range, in a field emission device or other vacuum electronic device. A graphene grid can be deformable responsive to an input to vary electric fields proximate to the grid. A mesh can be configured to support a graphene grid.
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公开(公告)号：US09805900B1
公开(公告)日：2017-10-31
申请号：US15145955
申请日：2016-05-04
发明人： David Glen Findley
CPC分类号： H01J1/3042 , B05D1/005 , B05D2203/30 , H01J1/3046 , H01J1/3048 , H01J1/48 , H01J9/025 , H01J21/105 , H01J2201/30469
摘要： In an embodiment, a method includes forming a first diamond layer on a substrate and inducing a layer of graphene from the first diamond layer by heating the substrate and the first diamond layer. The method includes forming a second diamond layer on top of the layer of graphene and applying a mask to the second diamond layer. The mask includes a shape of a cathode, an anode, and one or more grids. The method further includes forming a two-dimensional cold cathode, a two-dimensional anode, and one or more two-dimensional grids by reactive-ion electron-beam etching. Each of the two-dimensional cold cathode, the two-dimensional anode, and the one or more two-dimensional grids includes a portion of the first diamond layer, the graphene layer, and the second diamond layer such that the graphene layer is positioned between the first diamond layer and the second diamond layer.
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公开(公告)号：US09659735B2
公开(公告)日：2017-05-23
申请号：US14706485
申请日：2015-05-07
申请人： ELWHA LLC
发明人： William David Duncan , Roderick A. Hyde , Jordin T. Kare , Max N. Mankin , Tony S. Pan , Lowell L. Wood, Jr.
CPC分类号： H01J1/48 , H01J3/021 , H01J2203/0232 , Y10T29/49204
摘要： Graphene grids are configured for applications in vacuum electronic devices. A multilayer graphene grid is configured as a filter for electrons in a specific energy range, in a field emission device or other vacuum electronic device. A graphene grid can be deformable responsive to an input to vary electric fields proximate to the grid. A mesh can be configured to support a graphene grid.
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公开(公告)号：US09384933B2
公开(公告)日：2016-07-05
申请号：US14634094
申请日：2015-02-27
申请人： Elwha LLC
IPC分类号： H05B37/00 , H05B39/00 , H05B41/00 , H01J29/98 , H01J29/02 , H01J29/48 , H01J29/46 , H01J1/48 , H01J3/02
摘要： A field emission device is configured as a heat engine, and the performance of the device is optimized.
摘要翻译： 场致发射器件被配置为热引擎，并优化器件的性能。
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27.发明申请Fabrication of Nanoscale Vacuum Grid and Electrode Structure With High Aspect Ratio Dielectric Spacers Between the Grid and Electrode 有权在栅格和电极之间制备具有高比例介质间隔的纳米级真空栅格和电极结构公开(公告)号：US20160141382A1
公开(公告)日：2016-05-19
申请号：US14939743
申请日：2015-11-12
申请人： Elwha LLC
发明人： Max N. Mankin , Tony S. Pan
IPC分类号： H01L29/45 , H01L29/417 , H01L21/3213 , H01L29/167 , H01L21/311 , H01L21/02
CPC分类号： H01L29/456 , H01J1/46 , H01J1/48 , H01J9/14 , H01L21/02164 , H01L21/0217 , H01L21/02178 , H01L21/02181 , H01L21/31111 , H01L21/32133 , H01L29/167 , H01L29/417
摘要： Some embodiments of vacuum electronics call for a grid that is fabricated in close proximity to an electrode, where, for example, the grid and electrode are separated by nanometers or microns. Methods and apparatus for fabricating a nanoscale vacuum grid and electrode structure are described herein.
摘要翻译： 真空电子设备的一些实施例要求在电极附近制造的电网，其中例如栅极和电极被纳米或微米分开。 本文描述了用于制造纳米级真空栅格和电极结构的方法和装置。
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公开(公告)号：US20150179389A1
公开(公告)日：2015-06-25
申请号：US14634094
申请日：2015-02-27
申请人： Elwha LLC
摘要： A field emission device is configured as a heat engine, and the performance of the device is optimized.
摘要翻译： 场致发射器件被配置为热引擎，并优化器件的性能。
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公开(公告)号：US20120006784A1
公开(公告)日：2012-01-12
申请号：US13052064
申请日：2011-03-19
申请人： XIAO-YANG LIN , CHEN FENG , LI-NA ZHANG , KAI-LI JIANG
发明人： XIAO-YANG LIN , CHEN FENG , LI-NA ZHANG , KAI-LI JIANG
CPC分类号： H01J9/14 , H01J1/48 , H01J37/20 , H01J2203/0232
摘要： The present disclosure relates to a method for making a transmission electron microscope grid. The method includes: (a) providing a substrate with a graphene layer on a surface of the substrate; (b) applying a carbon nanotube film structure to cover the graphene layer; (c) removing the substrate, to obtain a graphene layer-carbon nanotube film composite structure; and (d) placing the graphene layer-carbon nanotube film composite structure on a grid.
摘要翻译： 本公开涉及一种制造透射电子显微镜栅格的方法。 该方法包括：（a）在衬底的表面上提供具有石墨烯层的衬底; （b）施加覆盖所述石墨烯层的碳纳米管膜结构; （c）除去基板，得到石墨烯层 - 碳纳米管膜复合结构体; 和（d）将石墨烯层 - 碳纳米管膜复合结构放置在栅格上。
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公开(公告)号：US5264050A
公开(公告)日：1993-11-23
申请号：US793368
申请日：1992-01-06
申请人： Nobuaki Nakashima , Shinzo Sugai , Eiichi Watanabe
发明人： Nobuaki Nakashima , Shinzo Sugai , Eiichi Watanabe
IPC分类号： C22C19/03 , C22C38/08 , C22C38/12 , H01F1/147 , H01J1/38 , H01J1/48 , H01J9/14 , H01J29/02 , H01L23/495
CPC分类号： C22C19/03 , C22C38/08 , C22C38/12 , H01F1/14708 , H01J1/38 , H01J1/48 , H01J29/02 , H01J9/14 , H01L23/49579 , H01L2924/0002
摘要： A Fe-Ni based alloy consists essentially of Ni of 25% by weight to 55% by weight, C of 0.001% by weight to 0.1% by weight, at least one element selected from Group IVb elements and Group Vb elements, e.g., Nb, or Ta of 0.01% by weight to 6% weight, and the balance being Fe and unavoidable impurities. The Fe-Ni based alloy contains dispersed particles inclusive of a carbide in the substructure. The carbide is a carbide of the Group IVb element or the Group Vb element. Since the dispersed particle inclusive of the carbide are finely and uniformly present in the substructure, mechanical strength, heat resistance and, a performance of punching work are improved. Additionally, a quantity of gas release in a vacuum can be reduced.
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