公开(公告)号：US20010024078A1

公开(公告)日：2001-09-27

申请号：US09784910

申请日：2001-02-16

Applicant: FULLERENE INTERNATIONAL CORPORATION

Inventor： Stevan Dimitrijevic ,  James C. Withers ,  Raouf O. Loutfy

IPC: H01J001/05 ,  H01J001/62

CPC classification number: B82Y10/00 ,  H01J1/304 ,  H01J1/3044 ,  H01J9/025 ,  H01J2201/30457 ,  H01J2201/30469 ,  Y10S977/745 ,  Y10S977/939

Abstract: The present invention is directed to a nanotube coated with diamond or diamond-like carbon, a field emitter cathode comprising same, and a field emitter comprising the cathode. It is also directed to a method of preventing the evaporation of carbon from a field emitter comprising a cathode comprised of nanotubes by coating the nanotube with diamond or diamond-like carbon. In another aspect, the present invention is directed to a method of preventing the evaporation of carbon from an electron field emitter comprising a cathode comprised of nanotubes, which method comprises coating the nanotubes with diamond or diamond-like carbon.

Abstract translation: 本发明涉及涂覆有金刚石或类金刚石碳的纳米管，包含该金刚石或类金刚石碳的场致发射极阴极以及包括阴极的场致发射体。 还涉及一种通过用金刚石或类金刚石碳涂覆纳米管来防止来自包括由纳米管组成的阴极的场发射体蒸发碳的方法。 另一方面，本发明涉及一种防止碳从包含由纳米管构成的阴极的电子发射体蒸发的方法，该方法包括用金刚石或类金刚石碳涂覆纳米管。

公开(公告)号：US20010019238A1

公开(公告)日：2001-09-06

申请号：US09858783

申请日：2001-05-15

Inventor： Hongjie Dai ,  Shoushan Fan ,  Michael Chapline ,  Nathan Franklin ,  Thomas Tombler

IPC: H01J001/02 ,  B05D005/12 ,  H01J001/05 ,  H01J001/38 ,  H01J019/06 ,  H01J001/48 ,  H01J001/14 ,  H01J001/30

CPC classification number: H01J9/025 ,  B82Y10/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/06 ,  C01B2202/08 ,  H01J1/304 ,  H01J2201/30469 ,  Y10S977/939

Abstract: A field emission device having bundles of aligned parallel carbon nanotubes on a substrate. The carbon nanotubes are oriented perpendicular to the substrate. The carbon nanotube bundles may be up to 300 microns tall, for example. The bundles of carbon nanotubes extend only from regions of the substrate patterned with a catalyst material. Preferably, the catalyst material is iron oxide. The substrate is preferably porous silicon, as this produces the highest quality, most well-aligned nanotubes. Smooth, nonporous silicon or quartz can also be used as the substrate. The method of the invention starts with forming a porous layer on a silicon substrate by electrochemical etching. Then, a thin layer of iron is deposited on the porous layer in patterned regions. The iron is then oxidized into iron oxide, and then the substrate is exposed to ethylene gas at elevated temperature. The iron oxide catalyzes the formation of bundles of aligned parallel carbon nanotubes which grow perpendicular to the substrate surface. The height of the nanotube bundles above the substrate is determined by the duration of the catalysis step. The nanotube bundles only grow from the patterned regions.

公开(公告)号：US06283812B1

公开(公告)日：2001-09-04

申请号：US09236933

申请日：1999-01-25

Applicant: Sungho Jin ,  Gregory Peter Kochanski ,  Wei Zhu

Inventor： Sungho Jin ,  Gregory Peter Kochanski ,  Wei Zhu

IPC: H01J902

CPC classification number: H01J9/025 ,  C01B32/168 ,  C01B2202/08 ,  C01B2202/22 ,  H01J1/304 ,  H01J2201/30469 ,  H01J2223/04 ,  Y02E60/325 ,  Y10S977/742 ,  Y10S977/743 ,  Y10S977/842 ,  Y10S977/89

Abstract: The emission properties of aligned nanotube arrays are improved by truncating the ends of the nanotubes. Truncation provides nanotubes having a height within, for example, 30% of the average truncated nanotube height, as well as ends substantially free of end caps. The cap-free ends provide desirable field concentration, and the height uniformity increases the number of participating nanotubes.

Abstract translation: 通过截断纳米管的端部来改善排列的纳米管阵列的发射特性。 截断提供具有例如平均截短的纳米管高度的30％内的高度的纳米管，以及基本上没有端盖的端部。 无帽端提供期望的场浓度，并且高度均匀性增加参与纳米管的数量。

公开(公告)号：US20010007783A1

公开(公告)日：2001-07-12

申请号：US09754148

申请日：2001-01-05

Inventor： Hang-woo Lee ,  Nae-sung Lee ,  Yong-soo Choi ,  Jong-min Kim

IPC: H01L021/00 ,  H01L021/84

CPC classification number: B82Y10/00 ,  H01J1/3042 ,  H01J9/025 ,  H01J2201/30469 ,  Y10S977/842

Abstract: A method for fabricating a triode field emitter array using carbon nanotubes having excellent electron emission characteristics is provided. In the method for fabricating a triode-structure carbon nanotube field emitter array, a catalyst layer is formed on a cathode electrode without forming a base layer, and carbon nanotubes are grown on the catalyst layer using a Spind't process. In this method, a non-reactive layer is formed on a catalyst layer outside the micro-cavity such that the carbon nanotubes can be grown only on the catalyst within the micro-cavity. Accordingly, even though a separation layer is etched and removed, since carbon nanotubes do not exist outside the micro-cavity, it does not happen that carbon nanotubes are drifted into the micro-cavities. Therefore, the fabrication yield is increased, and the fabrication cost is decreased.

Abstract translation: 提供了使用具有优异的电子发射特性的碳纳米管制造三极管场发射器阵列的方法。 在制造三极管结构碳纳米管场发射极阵列的方法中，在阴极上形成催化剂层而不形成基底层，并且使用Spind't工艺在催化剂层上生长碳纳米管。 在该方法中，在微腔外部的催化剂层上形成非反应性层，使得碳纳米管只能在微腔内的催化剂上生长。 因此，即使分离层被蚀刻和去除，由于碳纳米管不存在于微腔外部，碳纳米管不会漂移到微腔中。 因此，制造成品率增加，制造成本降低。

公开(公告)号：US6059627A

公开(公告)日：2000-05-09

申请号：US264308

申请日：1999-03-08

Applicant: Kenneth A. Dean ,  Paul von Allmen ,  Bernard F. Coll ,  Albert Alec Talin

Inventor： Kenneth A. Dean ,  Paul von Allmen ,  Bernard F. Coll ,  Albert Alec Talin

IPC: H01J9/02 ,  H01J1/304 ,  H01J1/30

CPC classification number: B82Y10/00 ,  H01J1/304 ,  H01J2201/30469

Abstract: A method or providing uniform emission current from a plurality of electron emitters with a composite current voltage characteristic (620), which include surface states that provide resonant tunneling emission of electrons (260). Field emission device (200) is operated beyond a decrease in the increase of emission current (630) as shown in the composite current voltage characteristic (620) in order to provide uniform emission current.

Abstract translation: 一种由具有复合电流电压特性（620）的多个电子发射器提供均匀发射电流的方法，其包括提供电子的共振隧道发射的表面状态（260）。 为了提供均匀的发射电流，如复合电流电压特性（620）所示，场发射器件（200）的运行超过了发射电流（630）增加的减小。

公开(公告)号：US5973444A

公开(公告)日：1999-10-26

申请号：US191269

申请日：1998-11-12

Applicant: Xueping Xu ,  Charles P. Beetz ,  George R. Brandes ,  Robert W. Boerstler ,  John W. Steinbeck

Inventor： Xueping Xu ,  Charles P. Beetz ,  George R. Brandes ,  Robert W. Boerstler ,  John W. Steinbeck

IPC: H01J1/304 ,  H01J1/30

CPC classification number: H01J1/304 ,  B82Y10/00 ,  H01J2201/30469 ,  H01J2201/319 ,  Y10S977/939

Abstract: Electron field emission devices (cold cathodes), vacuum microelectronic devices and field emission displays which incorporate cold cathodes and methods of making and using same. More specifically, cold cathode devices comprising electron emitting structures grown directly onto a substrate material. The invention also relates to patterned precursor substrates for use in fabricating field emission devices and methods of making same and also to catalytically growing other electronic structures, such as films, cones, cylinders, pyramids or the like, directly onto substrates.

公开(公告)号：US5773834A

公开(公告)日：1998-06-30

申请号：US799767

申请日：1997-02-12

Applicant: Kazuhiro Yamamoto ,  Yoshinori Koga ,  Shuzo Fujiwara

Inventor： Kazuhiro Yamamoto ,  Yoshinori Koga ,  Shuzo Fujiwara

IPC: C01B31/02 ,  C23C14/46 ,  H01J1/304 ,  H01J9/02 ,  H01J27/02

CPC classification number: B82Y10/00 ,  H01J9/025 ,  H01J2201/30469 ,  H01J2237/317 ,  Y10S977/742 ,  Y10S977/842 ,  Y10S977/843 ,  Y10S977/844 ,  Y10S977/901 ,  Y10S977/951

Abstract: A composite material is produced by irradiating a surface of a shaped body of a carbonaceous material with an ion beam to form a layer of carbon nanotubes on the surface. The composite material is useful as a cathode of an electron beam source element.

Abstract translation: 通过用离子束照射碳质材料成形体的表面，在表面上形成碳纳米管层来制造复合材料。 复合材料可用作电子束源元件的阴极。

公开(公告)号：US10008358B2

公开(公告)日：2018-06-26

申请号：US15229063

申请日：2016-08-04

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jin-Woo Jeong ,  Yoon-Ho Song

IPC: H01J35/06 ,  H01J35/16 ,  G21K1/02

CPC classification number: H01J35/06 ,  G21K1/02 ,  H01J35/065 ,  H01J35/16 ,  H01J2201/30469 ,  H01J2235/068 ,  H01J2235/166

Abstract: Disclosed is an X-ray source, including: a cathode including a shielding channel through which an X-ray passes; emitters formed on an upper surface of the cathode, and arranged around the shielding channel; an anode positioned so as to face the cathode, and including an anode target in which an E-beam is focused; and a gate electrode positioned between the cathode and the anode, and including gate holes at positions corresponding to those of the emitters.

公开(公告)号：US09805900B1

公开(公告)日：2017-10-31

申请号：US15145955

申请日：2016-05-04

Applicant: Lockheed Martin Corporation

Inventor： David Glen Findley

IPC: H01J1/316 ,  H01J1/304 ,  H01J9/02 ,  B05D1/00

CPC classification number: H01J1/3042 ,  B05D1/005 ,  B05D2203/30 ,  H01J1/3046 ,  H01J1/3048 ,  H01J1/48 ,  H01J9/025 ,  H01J21/105 ,  H01J2201/30469

Abstract: 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.

公开(公告)号：US20170172526A1

公开(公告)日：2017-06-22

申请号：US15337692

申请日：2016-10-28

Applicant: Teratech Corporation

Inventor： Alice Chiang

IPC: A61B6/00 ,  G01T1/20 ,  A61B6/03

CPC classification number: A61B6/4233 ,  A61B6/032 ,  A61B6/4007 ,  A61B6/502 ,  G01T1/2018 ,  H01J2201/30469

Abstract: The present invention relates to x-ray detector systems and methods for imaging of objects. The detector system can include a scintillator mounted to a solid state pixelated detector having a buried channel structure. An electronic shutter can be used to control detector exposure during an imaging procedure.