公开(公告)号：US5180951A

公开(公告)日：1993-01-19

申请号：US831592

申请日：1992-02-05

Applicant: Lawrence N. Dworsky ,  James E. Jaskie ,  Robert C. Kane

Inventor： Lawrence N. Dworsky ,  James E. Jaskie ,  Robert C. Kane

IPC: H01J1/304

CPC classification number: H01J1/304 ,  H01J2201/30457

Abstract: An electron device employing an electron source including a polycrystalline diamond film having a surface with a plurality of crystallographic planes some of which exhibit a very low/negative electron affinity such as, for example, the 111 crystallographic plane of type II-B diamond. Electron devices employing such electron sources are described including image generation electron devices, light source electron devices, and information signal amplifier electron devices.

公开(公告)号：US5156997A

公开(公告)日：1992-10-20

申请号：US653609

申请日：1991-02-11

Applicant: Nalin Kumar ,  Rama R. Goruganthu ,  Mohammed K. Ghazi

Inventor： Nalin Kumar ,  Rama R. Goruganthu ,  Mohammed K. Ghazi

IPC: H01L21/60 ,  H01L23/485 ,  H05K3/00

CPC classification number: H01L24/13 ,  H01L24/11 ,  H01J2201/30457 ,  H01L2224/11822 ,  H01L2224/13099 ,  H01L2224/13111 ,  H01L2224/13116 ,  H01L2224/13144 ,  H01L2224/13155 ,  H01L2924/0001 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01019 ,  H01L2924/01022 ,  H01L2924/01023 ,  H01L2924/01024 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01039 ,  H01L2924/0104 ,  H01L2924/01046 ,  H01L2924/01049 ,  H01L2924/01072 ,  H01L2924/01073 ,  H01L2924/01074 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/04941 ,  H01L2924/04953 ,  H01L2924/14 ,  H05K2201/2081 ,  H05K2203/0554 ,  H05K2203/107 ,  H05K3/0023 ,  H05K3/0041

Abstract: A method of making bonding bumps on the pads of an electrical chip including depositing a layer of metallic adhesion material over the surface, depositing metallic bumps on the metallic adhesion material over each of the pad areas using a focused liquid metal ion source, and chemically etching the layer of metallic adhesion material off the surface outside of the deposited bumps.

Abstract translation: 一种在电芯片的焊盘上形成接合凸块的方法，包括在表面上沉积一层金属粘附材料，使用聚焦的液态金属离子源在每个焊盘区域上沉积金属粘附材料上的金属凸块，以及化学蚀刻 金属粘合材料层从沉积的凸块外部的表面离开。

公开(公告)号：US5129850A

公开(公告)日：1992-07-14

申请号：US747562

申请日：1991-08-20

Applicant: Robert C. Kane ,  James E. Jaskie

Inventor： Robert C. Kane ,  James E. Jaskie

IPC: G01Q70/14 ,  H01J1/304 ,  H01J9/02

CPC classification number: H01J1/3042 ,  H01J9/025 ,  B82Y35/00 ,  H01J2201/30457

Abstract: A field emission electron emitter employing a coating of diamond material disposed on a surface of a layer of conductive/semiconductive material is constructed by a method including the steps of implanting carbon ions at a surface of a selectively shaped substrate to function as nucleation sites for the diamond formation. A conductive layer is deposited over the diamond and the substrate is removed to leave an electron emitter with a diamond coating.

公开(公告)号：US5085746A

公开(公告)日：1992-02-04

申请号：US579892

申请日：1990-09-10

Applicant: Inga H. Musselman ,  Phillip E. Russell

Inventor： Inga H. Musselman ,  Phillip E. Russell

IPC: C25F3/02 ,  C25F3/16 ,  H01J9/02

CPC classification number: G01Q60/16 ,  B82Y35/00 ,  C25F3/02 ,  C25F3/16 ,  H01J9/025 ,  H01J2201/30457

Abstract: A method of fabricating a double-tapered scanning tunneling microscope comprises (a) immersing one end of the tip in a bath of an acidic aqueous etchant solution containing an alkaline earth salt, with the wire positioned substantially perpendicularly to the surface of the solution; and (b) etching the wire at about 25 volts root mean squared (rms) alternating current (ac) until a double-tapered tip is formed thereon. The etching step is preferably followed by a polishing step which comprises (c) providing a thin film of a second acidic aqueous etchant solution containing an alkaline earth salt; then (d) contacting said electrode tip to the thin film: and then (e) etching the tip at about 2 volts rms ac to thereby polish the tip.Also disclosed is a method inhibiting the formation of carbon on a scanning tunneling microscope tip which comprises (a) positioning a wire in an etchant solution and then (b) etching the wire while excluding carbon dioxide therefrom.Double-tapered scanning tunneling microscope tip comprised of an elongate wire and methods of using the same are also disclosed.

Abstract translation: 制造双锥形扫描隧道显微镜的方法包括（a）将尖端的一端浸入含有碱土盐的酸性含水蚀刻剂溶液的浴中，其中丝线基本上垂直于溶液的表面定位; 并且（b）以约25伏的均方根（rms）交流电（ac）蚀刻线，直到其上形成双锥形尖端。 优选的蚀刻步骤之后是抛光步骤，其包括（c）提供含有碱土金属盐的第二酸性水性蚀刻剂溶液的薄膜; 然后（d）使所述电极尖端接触所述薄膜：然后（e）以约2伏rms ac蚀刻所述尖端，从而抛光所述尖端。 还公开了一种抑制扫描隧道显微镜尖端上形成碳的方法，其包括（a）将线定位在蚀刻剂溶液中，然后（b）在不排除二氧化碳的情况下蚀刻线。 还公开了由细长线组成的双锥形扫描隧道显微镜尖端及其使用方法。

公开(公告)号：US4272699A

公开(公告)日：1981-06-09

申请号：US18646

申请日：1979-03-08

Applicant: Manfred Faubel ,  William M. Holber ,  Jan P. Toennies

Inventor： Manfred Faubel ,  William M. Holber ,  Jan P. Toennies

IPC: H01J49/14 ,  H01J1/30 ,  H01J1/304 ,  H01J9/02 ,  H01J37/073 ,  H01J19/24 ,  H01J37/08

CPC classification number: H01J9/025 ,  H01J1/304 ,  H01J2201/30457

Abstract: A field emission cathode affording multiple emitting points, formed by a tiplicity of carbon fibers mounted on a conductive base, preferably in spaced clusters of about one thousand or more fibers, and projecting from the base to afford a multiplicity of emission points at the fiber tips. The fibers are in a range of diameters of about two to ten microns. As applied to an electron impact ion source for an instrument such as a mass spectrometer or molecular beam detector, the cathode is of annular configuration, incorporated in an electrode assembly comprising, radially inwardly of the assembly, the cathode, an extraction grid, a retardation grid and an ionization cage.

Abstract translation: 提供多个发射点的场发射阴极，其由安装在导电基底上的多个碳纤维形成，优选地具有约一千个或更多个纤维的间隔开的簇，并且从基底突出以在纤维尖端处提供多个发射点 。 纤维的直径范围约为2至10微米。 当应用于诸如质谱仪或分子束检测器的仪器的电子冲击离子源时，阴极是环形结构，并入电极组件中，包括在组件的径向内部，阴极，提取栅格，延迟 栅格和电离笼。