公开(公告)号：US06297592B1

公开(公告)日：2001-10-02

申请号：US09631890

申请日：2000-08-04

Applicant: Yehuda Goren ,  Sungho Jin ,  Gregory P Kochanski ,  Wei Zhu

Inventor： Yehuda Goren ,  Sungho Jin ,  Gregory P Kochanski ,  Wei Zhu

IPC: H01J2304

CPC classification number: B82Y10/00 ,  H01J9/025 ,  H01J23/04 ,  H01J23/06 ,  H01J2201/30469 ,  Y10S977/939

Abstract: An improved gridded microwave tube is provided, the tube containing a cold cathode, an anode, and a grid located between the anode and cathode. In one embodiment, the cold cathode has a refractory metal substrate and carbon nanotube emitters, the emitters having a diameter of 1 to 300 nm and a length of 0.05 to 100 &mgr;m. The grid-cathode spacing is 1 to 100 &mgr;m, the grid contains apertures having a maximum dimension of 0.5 to 100 &mgr;m, and the grid thickness is 0.5 to 100 &mgr;m. Emission from the cathode directly onto the grid material itself, which undesirably heats the grid, is reduced by either (a) the presence of a shadow mask between the grid and the emitters or (b) selective formation of the emitters in locations that correspond to the grid apertures. The microwave tube operates at a frequency of greater than 0.5 GHz, advantageously greater than 2 GHz.

Abstract translation: 提供了一种改进的网格微波管，该管包含位于阳极和阴极之间的冷阴极，阳极和栅极。 在一个实施方案中，冷阴极具有难熔金属基底和碳纳米管发射体，发射体的直径为1至300nm，长度为0.05至100μm。 栅极 - 阴极间距为1〜100μm，栅格包含最大尺寸为0.5〜100μm的孔，栅格厚度为0.5〜100μm。 通过（a）在栅格和发射体之间存在阴影掩模，或（b）在对应于栅格和发射体的位置中选择性地形成发射体，从阴极直接排放到栅格材料本身上，这不利地加热栅格， 网格孔。 微波管的工作频率大于0.5GHz，有利地大于2GHz。

公开(公告)号：US06291402B1

公开(公告)日：2001-09-18

申请号：US07426485

申请日：1989-10-23

Applicant: Sungho Jin ,  Richard Curry Sherwood ,  Thomas Henry Tiefel ,  Robert Bruce van Dover

Inventor： Sungho Jin ,  Richard Curry Sherwood ,  Thomas Henry Tiefel ,  Robert Bruce van Dover

IPC: B05D512

CPC classification number: H01L39/143 ,  H01L39/126 ,  H01L39/2429 ,  H01L39/248

Abstract: Some mechanical, electrical, and thermal properties of high Tc superconductors such as (Ba, Y) cuprates can be substantially improved by the dispersal of an appropriate metal in the superconductive body. For instance, mixing Ag particles with superconductive powder of nominal composition Ba2YCu3O7 and processing the mixture in the conventional manner can produce superconductive bodies having Tc of about 93 K and substantially greater fracture strength and normal state electrical and thermal conductivity than otherwise identical bodies that do not contain Ag particles.

Abstract translation: 通过在超导体中分散适当的金属，可以显着提高高Tc超导体（如Ba，Y）铜酸盐的一些机械，电和热性能。 例如，将Ag颗粒与标称组成Ba2YCu3O7的超导粉末混合并以常规方式处理混合物可以产生具有大约93K的Tc的超导体，并且具有比其它不相同的相同体的断裂强度和正常状态的电和热导率更高的超导体 含有Ag颗粒。

公开(公告)号：US06250984B1

公开(公告)日：2001-06-26

申请号：US09236966

申请日：1999-01-25

Applicant: Sungho Jin ,  Gregory Peter Kochanski ,  Wei Zhu

Inventor： Sungho Jin ,  Gregory Peter Kochanski ,  Wei Zhu

IPC: H01J904

CPC classification number: H01J23/06 ,  B82Y10/00 ,  H01J1/304 ,  H01J9/025 ,  H01J23/04 ,  H01J2201/30469 ,  Y10S977/842

Abstract: An improved process for fabricating nanotube field emitter structures is provided, in which the nanotubes protrude from a supporting base material to improve emission properties. The resulting emitter structure are useful in a variety of devices, including microwave vacuum tube devices and flat-panel, field-emission displays. To attain the protruding nanotube emitter structure, according to one embodiment of the invention, nanotubes and metal particles are mixed and consolidated into a compact, and the compact is then sectioned to expose a substantial number of nanotube ends. A layer of the metal is selectively etched from the sectioned surface, leaving the exposed nanotubes protruding from the surface. The extent of protrusion is at least twice the average diameter of the nanotubes, advantageously at least ten times the average diameter of the nanotubes.

Abstract translation: 提供了一种用于制造纳米管场发射极结构的改进方法，其中纳米管从支撑基材突出以改善发射性质。 所得到的发射极结构可用于各种装置，包括微波真空管装置和平板，场致发射显示器。 为了获得突出的纳米管发射体结构，根据本发明的一个实施方案，将纳米管和金属颗粒混合并固结成压实体，然后将压块分段以暴露大量的纳米管末端。 从切片表面选择性地蚀刻金属层，留下暴露的纳米管从表面突出。 突起的程度是纳米管的平均直径的至少两倍，有利地是纳米管的平均直径的至少十倍。

公开(公告)号：US06222299B1

公开(公告)日：2001-04-24

申请号：US09020752

申请日：1998-02-09

Applicant: John Edwin Graebner ,  Sungho Jin ,  Wei Zhu

Inventor： John Edwin Graebner ,  Sungho Jin ,  Wei Zhu

IPC: H03H925

CPC classification number: H03H9/059 ,  H01L2224/16225 ,  H03H3/08 ,  H03H9/02582

Abstract: Embodiments of the invention include an improved diamond-based surface acoustic wave (SAW) filter device. The SAW device comprises polished, large-grained diamond in combination with a piezoelectric layer to enhance the acoustic velocity and operational frequency of the SAW device with reduced loss and increased efficiency. Also, the use of a pre-polished, large-grained diamond slab reduces processing complications such as contamination or stressing of delicate device circuitry adjacent to the diamond component. Alternative embodiments of the invention include planar or vertical interconnection schemes for packaging of the SAW device and also include planarization schemes for convenient deposition and patterning of the SAW device metallization layer.

Abstract translation: 本发明的实施例包括改进的基于金刚石的表面声波（SAW）滤波器装置。 SAW器件包括与压电层组合的抛光的大颗粒金刚石，以增加SAW器件的声速和操作频率，减少损耗并提高效率。 此外，使用预抛光的大颗粒金刚石板可减少加工并发症，例如与金刚石部件相邻的精密器件电路的污染或应力。 本发明的替代实施例包括用于SAW器件封装的平面或垂直互连方案，并且还包括用于SAW器件金属化层的方便沉积和图案化的平面化方案。

公开(公告)号：US6154590A

公开(公告)日：2000-11-28

申请号：US162325

申请日：1998-09-28

Applicant: Sungho Jin ,  Hareesh Mavoori

Inventor： Sungho Jin ,  Hareesh Mavoori

IPC: G02B6/34 ,  G02B6/36

CPC classification number: G02B6/022

Abstract: In accordance with the invention, a tunable optical grating device comprises a grating, which is fixed at both ends to a support frame and is flexed so that a tensile strain induced in the grating reconfigures the resonant wavelength. Typical embodiments include mechanical or magnetic latching arrangements capable of inducing a latchable change in grating periodicity. In typical embodiments programmable and latchable magnets accurately produce a predetermined amount of fiber deflection and tensile strain, thereby producing a latchable wavelength shift with minimal power. The device is especially useful in WDM communication systems for adding or dropping channels, for dynamically gain-equalizing optical amplifiers, for tuning lasers, and for dispersion compensation.

Abstract translation: 根据本发明，可调光学光栅装置包括光栅，其在两端固定到支撑框架并弯曲，使得在光栅中感应的拉伸应变重新配置谐振波长。 典型的实施例包括能够引起光栅周期性的可闩锁变化的机械或磁性锁定装置。 在典型的实施例中，可编程和可锁定的磁体精确地产生预定量的纤维偏转和拉伸应变，从而以最小的功率产生可锁定的波长位移。 该器件在用于添加或删除通道的WDM通信系统中，用于动态增益均衡的光放大器，用于调谐激光器和色散补偿特别有用。

公开(公告)号：US6149778A

公开(公告)日：2000-11-21

申请号：US196486

申请日：1998-11-19

Applicant: Sungho Jin ,  Ruichen Liu ,  Chien-Shing Pai ,  Wei Zhu

Inventor： Sungho Jin ,  Ruichen Liu ,  Chien-Shing Pai ,  Wei Zhu

IPC: H01L23/532 ,  C23C14/34

CPC classification number: H01L23/5329 ,  H01L2924/0002

Abstract: The invention provides a device containing a low .kappa., hydrogen-free a-C:F layer with good adhesion and thermal stability. It was found that the combination of desirable properties was attainable by a relatively easy process, as compared to processes that utilize gaseous sources, such as CVD. Specifically, the a-C:F layer is formed by sputter deposition, using only solid sources for the fluorine and carbon, and in the absence of any intentionally-added hydrogen-containing source. The sputtering is performed such that the layer contains 20 to 60 at. % fluorine, and also, advantageously, such that the a-C:F exhibits a bandgap of about 2.0 eV or greater. The a-C:F layer formed by the process of the invention exhibits a dielectric constant, at 1 MHz and room temperature, of 3.0 or less, advantageously 2.5 or less, along with being thermally stable up to at least 350.degree. C., advantageously 450.degree. C., and exhibiting a stress of about 100 MPa or less, in absolute value.

Abstract translation: 本发明提供含有低κ，无氢a-C：F层的装置，其具有良好的粘附性和热稳定性。 已经发现，与使用气体源（例如CVD）的方法相比，期望性质的组合可通过相对容易的方法获得。 具体地，通过溅射沉积形成a-C：F层，仅使用固体源作为氟和碳，并且在没有任何有意添加的含氢源的情况下。 进行溅射使得该层含有20至60at。 ％氟，并且还有利地使得a-C：F表现出约2.0eV或更大的带隙。 通过本发明的方法形成的aC：F层在1MHz和室温下表现出3.0或更小，有利地为2.5或更小的介电常数，并且热稳定性高达至少350℃，有利地为450 并且以绝对值表现出约100MPa以下的应力。

公开(公告)号：US6128427A

公开(公告)日：2000-10-03

申请号：US141906

申请日：1998-08-28

Applicant: Rolando Patricio Espindola ,  Sungho Jin ,  Hareesh Mavoori

Inventor： Rolando Patricio Espindola ,  Sungho Jin ,  Hareesh Mavoori

IPC: G02B6/02 ,  G02B6/34 ,  G02F1/01 ,  G02B6/26

CPC classification number: G02F1/0115 ,  G02B6/022 ,  G02F2201/307

Abstract: The invention discloses digitally tunable optical grating device using force between switchable and nonswitchable magnets to reconfigure the mechanical strain, preferably a tensile strain, or gratings so that a pulse or short-duration current can induce a latchable change in grating periodicity. Preferred embodiments include fiber gratings with magnet gaps dimensioned for limiting the maximum strain applied to the grating and guides for providing strain without rotation or twisting. The magnets provide an accurately predetermined amount of strain and hence provide a latchable wavelength shift in the grating with a minimal amount of electrical power. The device is especially useful in WDM communication systems, particularly for adding or dropping channels and for dynamically equalizing amplifier gain.

Abstract translation: 本发明公开了使用在可切换和不可切换磁体之间的力的数字可调谐光栅装置，以重新配置机械应变，优选拉伸应变或光栅，使得脉冲或短持续时间电流可以引起光栅周期性的可锁定变化。 优选实施例包括具有磁体间隙的光纤光栅，其尺寸用于限制施加到光栅的最大应变和用于在不旋转或扭转的情况下提供应变的引导件。 这些磁体提供了精确的预定量的应变，并因此以最小的电功率在光栅中提供可锁定的波长位移。 该器件在WDM通信系统中特别有用，特别是用于增加或删除通道，并用于动态均衡放大器增益。

公开(公告)号：US6108470A

公开(公告)日：2000-08-22

申请号：US179136

申请日：1998-10-26

Applicant: Sungho Jin ,  Hareesh Mavoori

Inventor： Sungho Jin ,  Hareesh Mavoori

IPC: G02B6/34

CPC classification number: G02B6/022 ,  G02B6/0218 ,  G02B6/2932 ,  G02B6/29322

Abstract: A temperature-compensated tunable optical waveguide grating device comprises a length of optical waveguide grating including an optical grating region, a guiding tube or frame mechanically coupled to the waveguide at one end of the grating region, and mechanically coupled to the waveguide at the other end of the grating region, a movable element responsive to control signals for applying adjustable strain across the grating region, thereby tuning the grating. The device further comprises a temperature-compensating element for modulating the strain in proportion to changes in temperature, thereby temperature compensating the device. Advantageously the waveguide is an optical fiber and the movable element is a movable magnet.The inventive device can reduce the temperature-dependent wavelength change to less than 0.5 nm/100 deg. C., and advantageously less than 0.05 nm/100 deg. C. In an advantageous embodiment, the packaging assembly also includes a fine wavelength-adjusting mechanism for post-assembly corrective tuning. The device is especially useful in WDM communication systems, particularly for adding or dropping channels, for dynamically gain-equalizing optical amplifiers and for dispersion compensation.

Abstract translation: 温度补偿可调谐光波导光栅器件包括一段长度的光波导光栅，其包括光栅区域，在光栅区域的一端机械耦合到波导的导向管或框架，并在另一端机械耦合到波导管 的光栅区域，响应于控制信号的可移动元件，以在光栅区域上施加可调应变，从而调谐光栅。 该装置还包括用于与温度变化成比例地调制应变的温度补偿元件，从而对器件进行温度补偿。 有利地，波导是光纤，可移动元件是可动磁体。 本发明的装置可将温度依赖性波长变化降低到小于0.5nm / 100deg。 有利地小于0.05nm / 100度。 在有利的实施例中，包装组件还包括用于后组装校正调谐的精细波长调节机构。 该器件在WDM通信系统中特别有用，特别是用于增加或删除通道，用于动态增益均衡的光放大器和色散补偿。

公开(公告)号：US6085016A

公开(公告)日：2000-07-04

申请号：US97549

申请日：1998-06-15

Applicant: Rolando Patricio Espindola ,  Sungho Jin ,  Hareesh Mavoori ,  Kenneth Lee Walker

Inventor： Rolando Patricio Espindola ,  Sungho Jin ,  Hareesh Mavoori ,  Kenneth Lee Walker

IPC: G02B6/26 ,  G02B6/00

CPC classification number: G02B6/266

Abstract: Magnets are used to control the amount of coupling loss between fibers. The fiber ends are attached to magnets and by controllably magnetizing the magnets, the fibers can be pulled apart or brought closer together to vary the amount of coupling loss. Preferably at least one of the magnets is latchable. The advantage of the latchable version is that a predetermined amount of loss can be latchably set by magnetizing the magnets to a particular level and afterwards no additional power is required to maintain the amount of attenuation. This is advantageous compared to other approaches in which power is required continuously to maintain a particular loss level.

Abstract translation: 磁铁用于控制纤维之间的耦合损耗。 光纤端部附着在磁体上，并通过可控制地磁化磁体，可以将光纤拉开或靠近在一起以改变耦合损耗。 优选地，至少一个磁体是可锁定的。 可锁定版本的优点是可以通过将磁体磁化到特定水平来锁定预定量的损耗，然后不需要额外的功率来保持衰减量。 与其中需要连续维持功率以维持特定损耗水平的其它方法相比，这是有利的。

公开(公告)号：US5976715A

公开(公告)日：1999-11-02

申请号：US965682

申请日：1997-11-06

Applicant: Li-Han Chen ,  Sungho Jin ,  Wei Zhu ,  Robert Bruce van Dover

Inventor： Li-Han Chen ,  Sungho Jin ,  Wei Zhu ,  Robert Bruce van Dover

IPC: C22C38/00 ,  C22C38/26 ,  C22C38/28 ,  G11B5/127 ,  G11B5/187 ,  G11B5/31 ,  G11B5/39 ,  G11B5/667 ,  H01F10/08 ,  H01F10/12 ,  H01F10/13 ,  H01F10/14 ,  H01F10/32 ,  H01F17/00 ,  H01F41/30 ,  G11B5/66

CPC classification number: B82Y25/00 ,  B82Y40/00 ,  G11B5/1878 ,  G11B5/3109 ,  G11B5/3903 ,  G11B5/3906 ,  H01F10/002 ,  H01F10/08 ,  H01F10/13 ,  H01F10/138 ,  H01F10/147 ,  H01F10/3204 ,  H01F10/3254 ,  H01F17/0033 ,  H01F41/302 ,  Y10S428/90 ,  Y10T428/115

Abstract: The invention is embodied in a soft magnetic thin film article comprising an iron--chromium-nitrogen (Fe--Cr--N) based alloy and methods for making such article. The soft magnetic thin film article is formed using an iron--chromium--nitrogen based alloy with tantalum in one embodiment and with at least one of the elements titanium (Ti), zirconium (Zr), hafnium (Hf), vanadium (V), molybdenum (Mo), niobium (Nb) or tungsten (W) in another embodiment. The article is formed such that the alloy has a relatively high saturation magnetization (e.g., greater than approximately 15 kG) and a relatively low coercivity (e.g., less than approximately 2.0 oersteds) in an as-deposited condition or, alternatively, with a very low temperature treatment (e.g., below approximately 150.degree. C.). The inventive films are suitable for use in electromagnetic devices, for example, in microtransformer cores, inductor cores and in magnetic read-write heads.

Abstract translation: 本发明体现在包含铁 - 铬 - 氮（Fe-Cr-N）基合金的软磁薄膜制品和制造这种制品的方法中。 在一个实施方案中，使用具有钽的铁 - 铬 - 氮基合金与所述软磁性薄膜制品形成钛（Ti），锆（Zr），铪（Hf），钒（V）， 钼（Mo），铌（Nb）或钨（W）。 制品形成为使得合金在沉积条件下具有相对高的饱和磁化强度（例如，大于约15kG）和相对较低的矫顽力（例如，小于约2.0奥斯特），或者替代地， 低温处理（如低于约150℃）。 本发明的膜适用于电磁装置，例如在微型变压器芯，电感芯和磁读写头中。