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1. 发明授权

US09852870B2 Method for the fabrication of electron field emission devices including carbon nanotube field electron emisson devices 有权
公开(公告)号：US09852870B2
公开(公告)日：2017-12-26
申请号：US13113378
申请日：2011-05-23
申请人： Mehmet Ozgur , Paul Sunal , Lance Oh , Michael Huff , Michael Pedersen
发明人： Mehmet Ozgur , Paul Sunal , Lance Oh , Michael Huff , Michael Pedersen
IPC分类号： H01L21/00 , H01J1/02 , H01J1/304 , H01J9/02 , B82Y40/00 , B82Y10/00
CPC分类号： H01J1/304 , B82Y10/00 , B82Y40/00 , H01J9/025 , H01J2201/30469
摘要： The present invention is directed to a method for the fabrication of electron field emitter devices, including carbon nanotube (CNT) field emission devices. The method of the present invention involves depositing one or more electrically conductive thin-film layers onto a electrically conductive substrate and performing lithography and etching on these thin film layers to pattern them into the desired shapes. The top-most layer may be of a material type that acts as a catalyst for the growth of single- or multiple-walled carbon nanotubes (CNTs). Subsequently, the substrate is etched to form a high-aspect ratio post or pillar structure onto which the previously patterned thin film layers are positioned. Carbon nanotubes may be grown on the catalyst material layer. The present invention also described methods by which the individual field emission devices may be singulated into individual die from a substrate.

2. 发明授权

US09839112B2 Neutron generator 有权
公开(公告)号：US09839112B2
公开(公告)日：2017-12-05
申请号：US14645752
申请日：2015-03-12
申请人： Schlumberger Technology Corporation
发明人： Joel L. Groves
IPC分类号： H05H3/06 , G01V5/10 , B82Y99/00
CPC分类号： H05H3/06 , B82Y99/00 , G01V5/10 , H01J2201/30469 , Y10S977/963
摘要： A neutron generator includes an ion source disposed in a pressurized environment containing an ionizable gas. The ion source includes a substrate with a bundle of carbon nanotubes extending therefrom. The ends of the nanotubes are spaced from a grid. Ion source voltage supply circuitry supplies a positive voltage potential between the substrate and the grid of the ion source to cause ionization of the ionizable gas and emission of ions through the grid. An ion accelerator section is disposed between the ion source and a target. The ion accelerator section accelerates ions that pass through the grid towards the target such that collisions of the ions with the target cause the target to generate and emit neutrons therefrom. The ion source, accelerator section and target are housed in a sealed tube and preferably the carbon nanotubes of the bundle are highly ordered with at least 106 carbon nanotubes per cm2 that extend in a direction substantially parallel to the central axis of the tube. The neutron generator provides gas ionization at much higher atomic to molecular ratio that the prior art, which allows for small compact size designs suitable for logging tools that are used in space-constrained downhole environments.

3. 发明授权

US09728367B2 Digital X-ray source 有权
公开(公告)号：US09728367B2
公开(公告)日：2017-08-08
申请号：US14417546
申请日：2013-07-12
申请人： UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
发明人： Hun Kuk Park , Je Hwang Ryu
IPC分类号： H01J35/06 , H05G1/52 , H01J35/04
CPC分类号： H01J35/06 , H01J35/04 , H01J35/065 , H01J2201/30469 , H01J2235/062 , H05G1/52
摘要： The present invention discloses a digital X-ray source. The digital X-ray source includes an X-ray generation unit that emits X-rays, wherein the X-ray generation unit includes a cathode electrode; an emitter formed above the cathode electrode; an anode electrode located above the emitter; a gate electrode located between the emitter and the anode electrode; first and second focusing electrodes located between the emitter and the anode electrode; and an electrode connecting unit configured to include one or more insulating tubes capable of fixing and adjusting the locations of the gate electrode and the first and second focusing electrodes on the cathode electrode, and also configured to individually insulate and connect the cathode electrode, the gate electrode and the first and second focusing electrodes from and with electric lines

4. 发明申请

US20170117389A1 HIGH DENSITY VERTICAL NANOWIRE STACK FOR FIELD EFFECT TRANSISTOR 审中-公开
公开(公告)号：US20170117389A1
公开(公告)日：2017-04-27
申请号：US15398478
申请日：2017-01-04
申请人： International Business Machines Corporation
发明人： Kangguo Cheng , Ali Khakifirooz , Juntao Li
IPC分类号： H01L29/66 , H01L21/306 , H01L29/78 , H01L29/06 , H01L29/417 , H01L21/02 , H01L21/324
CPC分类号： H01L29/66795 , B82Y10/00 , B82Y40/00 , H01J2201/30469 , H01L21/02603 , H01L21/30604 , H01L21/30608 , H01L21/30617 , H01L21/30635 , H01L21/324 , H01L29/0673 , H01L29/0676 , H01L29/1033 , H01L29/16 , H01L29/2003 , H01L29/201 , H01L29/41791 , H01L29/42376 , H01L29/42392 , H01L29/66439 , H01L29/66545 , H01L29/775 , H01L29/785 , H01L29/7853 , H01L29/7854 , H01L2029/7858 , Y10S977/762 , Y10S977/765 , Y10S977/938
摘要： An alternating stack of layers of a first epitaxial semiconductor material and a second epitaxial semiconductor material is formed on a substrate. A fin stack is formed by patterning the alternating stack into a shape of a fin having a parallel pair of vertical sidewalls. After formation of a disposable gate structure and an optional gate spacer, raised active regions can be formed on end portions of the fin stack. A planarization dielectric layer is formed, and the disposable gate structure is subsequently removed to form a gate cavity. A crystallographic etch is performed on the first epitaxial semiconductor material to form vertically separated pairs of an upright triangular semiconductor nanowire and an inverted triangular semiconductor nanowire. Portions of the epitaxial disposable material are subsequently removed. After an optional anneal, the gate cavity is filled with a gate dielectric and a gate electrode to form a field effect transistor.

5. 发明申请

US20160372297A1 Systems and Methods for Generating Tunable Electromagnetic Waves Using Carbon Nanotube-Based Field Emitters 审中-公开
标题翻译：使用基于碳纳米管的场发射器产生可调谐电磁波的系统和方法
公开(公告)号：US20160372297A1
公开(公告)日：2016-12-22
申请号：US15187659
申请日：2016-06-20
申请人： California Institute of Technology
发明人： Harish Manohara , Risaku Toda , Mohammad M. Mojarradi , Linda Y. Del Castillo
IPC分类号： H01J35/06 , H01J35/08
CPC分类号： H01J35/065 , H01J35/08 , H01J2201/30469 , H01J2235/081
摘要： Systems and methods in accordance with embodiments of the invention generate tunable electromagnetic waves using carbon nanotube-based field emitters. In one embodiment, a CNT-based irradiator includes: at least one CNT-based cathode, itself including: a plurality of carbon nanotubes adjoined to a substrate; a plurality of anodic regions; where each anodic region is configured to emit a distinctly different class of photons in a direction away from the at least one cathode in response to a same reception of electrons; where each of the plurality of anodic regions is operable to receive electrons emitted from at least one of said at least one CNT-based cathode; and where each of the at least one CNT-based cathode and the plurality of anodic regions are disposed within a vacuum encasing.
摘要翻译：根据本发明的实施例的系统和方法使用基于碳纳米管的场发射器产生可调电磁波。在一个实施方案中，基于CNT的辐照器包括：至少一个基于CNT的阴极本身包括：与基底相邻的多个碳纳米管; 多个阳极区域; 其中每个阳极区域被配置为响应于相同的电子接收而沿远离所述至少一个阴极的方向发射明显不同类型的光子; 其中所述多个阳极区域中的每一个可操作以接收从所述至少一个基于CNT的阴极中的至少一个发射的电子; 并且其中所述至少一个CNT基阴极和所述多个阳极区域中的每一个设置在真空包装内。

6. 发明授权

US09508522B2 X-ray generator including heat sink block 有权
标题翻译： X射线发生器包括散热块
公开(公告)号：US09508522B2
公开(公告)日：2016-11-29
申请号：US14207216
申请日：2014-03-12
申请人： Samsung Electronics Co., Ltd. , SRI INTERNATIONAL
发明人： Shang-hyeun Park , Paul R. Schwoebel , Il-hwan Kim , Do-yoon Kim , Yong-chul Kim , Chang-soo Lee , Tae-won Jeong
IPC分类号： H01J35/06 , H01J35/04 , H01J19/44 , H01J3/02 , H01J3/38 , H01J1/30 , H01J1/90 , A61B6/00 , H01J1/304 , H01J19/24 , H01J19/42 , B82Y30/00
CPC分类号： H01J35/065 , A61B6/40 , A61B6/4064 , A61B6/4488 , B82Y30/00 , H01J1/304 , H01J1/90 , H01J3/021 , H01J3/38 , H01J19/24 , H01J19/42 , H01J19/44 , H01J35/045 , H01J35/06 , H01J2201/304 , H01J2201/30469 , H01J2201/3195 , H01J2203/0204 , H01J2203/0208 , H01J2203/0212 , H01J2203/0216 , H01J2203/0236 , H01J2235/06 , H01J2235/1212 , H01J2235/1291 , H01J2235/1295 , Y10S977/742 , Y10S977/939 , Y10S977/95
摘要： An x-ray generator includes a housing, a cathode block that is arranged in the housing and emits electrons via a field emission scheme, an anode block that is arranged in the housing and generates x-rays in response to the electrons emitted from the cathode block and collide with the anode block, and a heat sink block that contacts the cathode block and dissipates heat generated therein to an outside of the housing.
摘要翻译： X射线发生器包括壳体，阴极块，其布置在壳体中并经由场致发射方案发射电子;阳极块，布置在壳体中并响应于从阴极发射的电子产生X射线阻挡并与阳极块碰撞，以及散热块，其接触阴极块并将其中产生的热量散发到壳体的外部。

7. 发明授权

US09437391B2 Carbon nanotube based micro-tip structure and method for making the same 有权
标题翻译：基于碳纳米管的微尖端结构及其制造方法
公开(公告)号：US09437391B2
公开(公告)日：2016-09-06
申请号：US13592751
申请日：2012-08-23
申请人： Yang Wei , Shou-Shan Fan
发明人： Yang Wei , Shou-Shan Fan
IPC分类号： H01J37/073 , H01J1/14 , H01J1/304 , H01J63/02 , H01J63/06
CPC分类号： H01J1/14 , H01J1/3044 , H01J9/042 , H01J37/073 , H01J63/02 , H01J63/06 , H01J2201/196 , H01J2201/30411 , H01J2201/30469 , H01J2237/06316 , H01J2237/06333 , H01J2237/06341 , H01J2237/26 , H01J2237/28 , H01J2329/0455 , Y10T428/24132
摘要： A carbon nanotube micro-tip structure includes an insulating substrate and a patterned carbon nanotube film structure. The insulating substrate includes a surface. The surface includes an edge. The patterned carbon nanotube film structure is partially arranged on the surface of the insulating substrate. The patterned carbon nanotube film structure includes two strip-shaped arms joined at one end to form a tip portion protruded from the edge of the surface of the insulating substrate and suspended. Each of the two strip-shaped arms includes a plurality of carbon nanotubes parallel to the surface of the insulating substrate.
摘要翻译：碳纳米管微尖端结构包括绝缘基板和图案化碳纳米管薄膜结构。绝缘基板包括表面。表面包括边缘。图案化的碳纳米管膜结构部分地布置在绝缘基板的表面上。图案化碳纳米管膜结构包括两端连接的带状臂，形成从绝缘基板的表面的边缘突出的顶端部分并悬挂。两个条形臂中的每一个包括平行于绝缘基板的表面的多个碳纳米管。

8. 发明授权

US09312089B2 Method for making field emission cathode 有权
标题翻译：场致发射阴极的制作方法
公开(公告)号：US09312089B2
公开(公告)日：2016-04-12
申请号：US14753393
申请日：2015-06-29
申请人： Tsinghua University , HON HAI PRECISION INDUSTRY CO., LTD.
发明人： Bing-Chu Du , Peng Liu , Duan-Liang Zhou , Chun-Hai Zhang , Shou-Shan Fan
IPC分类号： H01J9/02 , H01J1/304
CPC分类号： H01J9/025 , H01J1/304 , H01J3/021 , H01J2201/30469 , H01J2203/0268 , H01J2203/0272 , H01J2203/028 , H01J2203/0284 , H01J2203/0288 , Y10S977/742
摘要： The disclosure relates to a method for making field emission cathode. A microchannel plate is provided. The microchannel plate includes a first surface and a second surface opposite to the first surface. The microchannel plate defines a number of holes extending through the microchannel plate from the first surface to the second surface. The plurality of holes are filled with a carbon nanotube slurry. The carbon nanotube slurry is adhered on inner walls of the plurality of holes. The carbon nanotube slurry in the plurality of holes is solidified.
摘要翻译：本公开涉及一种用于制造场致发射阴极的方法。提供微通道板。微通道板包括第一表面和与第一表面相对的第二表面。微通道板限定了从第一表面到第二表面延伸通过微通道板的许多孔。多个孔填充有碳纳米管浆料。碳纳米管浆料粘附在多个孔的内壁上。多个孔中的碳纳米管浆料固化。

9. 发明申请

US20160089102A1 COMPACT MEDICAL X-RAY IMAGING APPARATUS 审中-公开
标题翻译：紧凑医疗X射线成像装置
公开(公告)号：US20160089102A1
公开(公告)日：2016-03-31
申请号：US14964283
申请日：2015-12-09
申请人： TSUKUBA TECHNOLOGY CO., LTD.
发明人： Bo Wang , Norio Saito , Xiaojun Liu , Ryoichi Suzuki
IPC分类号： A61B6/00 , H01J35/06
CPC分类号： A61B6/542 , A61B6/40 , A61B6/4405 , A61B6/56 , A61B6/587 , G01T1/02 , G01T7/00 , H01J35/065 , H01J2201/30469 , H01J2235/062 , H05G1/36
摘要： The present invention provides a compact medical X-ray imaging apparatus, which is a portable X-ray imaging apparatus capable of capturing clear X-ray images while maintaining low radiation exposure. The compact medical X-ray imaging apparatus comprises of: a carbon nanostructure triode cold cathode X-ray tube that radiates X-rays; an X-ray image sensor that captures an image of X-rays that pass through a patient; The first detector that detects the X-ray radiation dose and is positioned between the carbon nanostructure triode cold cathode X-ray tube and the X-ray image sensor, while out of the X-ray irradiation area for the imaging sensor; the second detector that detects the X-ray dose and is positioned in the center on one side of the X-ray image sensor frame; the third detector that detects the X-ray dose and is positioned on the other side of the X-ray image sensor frame facing to the second detector with the detection surface of the image sensor in between the second and third detector; a power supply which supplies a negative and a positive high-voltage pulse to the cathode and anode of the carbon nanostructure triode cold cathode X-ray tube respectively; and an X-ray imaging controller which acquires detection data from the first detector, second detector and third detector in addition to the distance from the carbon nanostructure triode cold cathode X-ray tube to the X-ray image sensor, calculates the X-ray radiation dose and amount of decay, determines the optimum X-ray dose for the patient and the voltage of the carbon nanostructure triode cold cathode X-ray tube, controls the pulse number and pulse width of the high-voltage pulse of the carbon nanostructure triode cold cathode X-ray tube, as well as the voltage of the cathode and the anode with feedback control means.
摘要翻译：本发明提供一种紧凑型医用X射线成像装置，其是能够在保持低辐射照射的同时捕获清晰的X射线图像的便携式X射线成像装置。紧凑型医疗X射线成像装置包括：辐射X射线的碳纳米结构三极管冷阴极X射线管; X射线图像传感器，其捕获通过患者的X射线的图像; 检测X射线辐射剂量的第一检测器，并位于碳纳米结构三极管冷阴极X射线管和X射线图像传感器之间，同时用于成像传感器的X射线照射区域; 所述第二检测器检测所述X射线剂量并位于所述X射线图像传感器框架的一侧的中心; 所述第三检测器检测所述X射线剂量，并且位于所述X射线图像传感器框架的面向所述第二检测器的另一侧，所述图像传感器的检测表面位于所述第二和第三检测器之间; 分别向碳纳米结构三极管冷阴极X射线管的阴极和阳极提供负极和正电压脉冲的电源; 以及除了从碳纳米结构三极管冷阴极X射线管到X射线图像传感器的距离之外，还从第一检测器，第二检测器和第三检测器获取检测数据的X射线成像控制器，计算X射线辐射剂量和衰减量决定了患者的最佳X射线剂量和碳纳米结构三极管冷阴极X射线管的电压，控制了碳纳米结构三极管的高电压脉冲的脉冲数和脉冲宽度冷阴极X射线管，以及具有反馈控制装置的阴极和阳极的电压。

10. 发明授权

US09269523B2 Electron emission device and electron emission display 有权
标题翻译：电子发射装置和电子发射显示
公开(公告)号：US09269523B2
公开(公告)日：2016-02-23
申请号：US14599988
申请日：2015-01-19
申请人： Tsinghua University , HON HAI PRECISION INDUSTRY CO., LTD.
发明人： Peng Liu , De-Jie Li , Chun-Hai Zhang , Duan-Liang Zhou , Bing-Chu Du , Shou-Shan Fan
IPC分类号： H01L29/06 , H01J29/18 , H01J1/308 , H01J1/304 , H01J1/312 , H01J31/12
CPC分类号： H01J29/18 , H01J1/304 , H01J1/308 , H01J1/312 , H01J31/127 , H01J2201/30461 , H01J2201/30469 , H01J2201/3125 , H01J2329/0449 , H01J2329/0455 , H01J2329/0478 , H01J2329/0484
摘要： An electron emission device includes a number of first electrodes and a number of second electrodes intersected with each other to define a number of intersections. An electron emission unit is sandwiched between the first electrode and the second electrode at each of the number of intersections, wherein the electron emission unit includes a semiconductor layer and an insulating layer stacked together, the semiconductor layer defines a number of holes, the carbon nanotube layer covers the number of holes, and a portion of the carbon nanotube layer is suspended on the number of holes.
摘要翻译：电子发射装置包括多个第一电极和多个彼此相交的第二电极以限定多个交点。电子发射单元在每个交叉点的每一个处夹在第一电极和第二电极之间，其中电子发射单元包括层叠在一起的半导体层和绝缘层，半导体层限定多个孔，碳纳米管层覆盖孔的数量，并且一部分碳纳米管层悬浮在孔的数量上。

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