Electrolytic Erosion Of A Workpiece For Shape Or Surface Change (e.g., Etching, Polishing, Etc.) (process And Electrolyte Composition) Patents (Class 205/640)
  • Patent number: 10556280
    Abstract: A method of operating an electrochemical machining system includes selectively performing an electrochemical machining process by an electrochemical machine of the electrochemical machining system in a macromachining mode or a micromachining mode by controlling a purity level of a machining liquid supplied to the electrochemical machine.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: February 11, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Andrew Lee Trimmer, John Malott Cottrill
  • Patent number: 10535862
    Abstract: Disclosed is a system for manufacturing an electrode for a secondary battery, which includes an active material drying unit configured to dry an active material coated on an electrode current collector, and a tester unit configured to measure a dried state of the active material by performing a scratch test to the dried active material.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: January 14, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jin-Young Son, Jung-Min Yang, Taek-Soo Lee, Chan-Soo Jun, Hyung-Suk Cho, Sang-Hoon Choy
  • Patent number: 10487394
    Abstract: A method for improving the performance and/or service life of pistons, wherein at least one PVD coating source includes a target. The coating source is arranged on a wall of the coating chamber and is periodically operated. The target surface to be evaporated is positioned parallel to the vertical axis and the surface sections to be coated are positioned in front of the target surface in the coating region using a holding device. The substrate receiving area is rotated periodically about the rotational axis of the substrate receiving area by a rotary system which is a coupling system, or is arranged on the coupling system, or is a part of the coupling system. The rotational axis and the vertical axis form an angle which is larger than 10° and smaller than 180° such that the coating material reaches each part of the individual surface sections at least once.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: November 26, 2019
    Assignee: OERLIKON SURFACE SOLUTIONS AG, PFÄFFIKON
    Inventors: Beno Widrig, Arvid Stellmacher, Ruedi Roppel, Juergen Ramm
  • Patent number: 10465310
    Abstract: A method and apparatus for electrochemical etching are disclosed. The method comprises immersing parts of objects (2) to be etched in an electrolyte (4), applying a voltage between the objects (2) and at least one electrode (6) to cause an electrochemical reaction between the objects (2) and the electrolyte (4), and positioning the objects (2) and electrodes (6) relative to each other such that a reaction product accumulates on the objects (2) during the reaction to reduce the rate of the reaction.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: November 5, 2019
    Assignee: THE UNIVERSITY OF DURHAM
    Inventors: Richard Stone, Dagou Zeze
  • Patent number: 10315284
    Abstract: The invention relates to a removable electro-mechanical device for burnishing and smoothing metal parts, said device comprising: a tank (2) containing an electrolytic solution and the cathode (c); a main body (3) which closes the tank (2), and in which the electrical contacts (6), the mechanical components and the drive systems (5) are incorporated, said drive systems being located in the lower portion of the main body (3) and being vertically and radially secured to a part (7) such that, in addition, when said body (3) is coupled to the tank (2), they remain immersed in the solution; and a detachable head (4) that can be coupled to the main body (3) and includes an electric motor (14) linked to a rotating body (15) and a removable, coupleable, rod-shaped supporting structure (41) or anode (a) having securing means (42) for the parts to be treated, and being disposed in such a way that, when said head (4) is coupled to the main body (3), the parts remain immersed in said solution.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: June 11, 2019
    Assignee: STEROS GPA INNOVATIVE, S.L.
    Inventors: Pau Sarsanedas Millet, Pau Narcis Guasch Piriz, Arnau Garrell Bunuel, Gerard Tordera Xandri
  • Patent number: 10094225
    Abstract: According to one embodiment of this disclosure a core includes a first end and a second end spaced generally opposite from the first end. The core further includes a stacking axis defined between the first end and second end and a first toroidal structure located between the first end and the second end. The first toroidal structure includes a first passage extending through the first toroidal structure in a first direction that is perpendicular to and passes through the stacking axis. The core also includes a second toroidal structure located between the first toroidal structure and the second end. The second toroidal structure includes a second passage extending through the second toroidal structure in a second direction. The first direction and the second direction are oriented along the stacking axis at a non-zero degree angle with respect to each other.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: October 9, 2018
    Assignee: United Technologies Corporation
    Inventors: Paul M. Lutjen, Gary L. Grogg
  • Patent number: 9901895
    Abstract: A method of forming one or more protrusions on an outer surface of a polished face of a solid state material, said method including the step of applying focused inert gas ion beam local irradiation towards an outer surface of a polished facet of a solid state material in a way of protruding top surface material; wherein irradiated focused inert gas ions from said focused inert gas ion bean penetrate the outer surface of said polished facet of said solid state material; and wherein irradiated focused inert gas ions cause expansive strain within the solid state crystal lattice of the solid state material below said outer surface at a pressure so as to induce expansion of solid state crystal lattice, and form a protrusion on the outer surface of the polished face of said solid state material.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: February 27, 2018
    Assignee: Chow Tai Fook Jewellery Company
    Inventors: Koon Chung Hui, Ho Ching, Ching Tom Kong
  • Patent number: 9879356
    Abstract: In order to improve a method for decoating of ceramic hard material layers from steel and cemented carbide substrates having a ceramic hard material layer on part of the surface thereof and to make it amenable to further applications, it is proposed that the workpieces (10) to be decoated be inserted—preferably with a part thereof without a ceramic hard material layer—into guard elements, preferably protective plugs, which fit in diameter and height, and be pressed into a holder (50), the holder with the workpieces (10) to be decoated be contacted with the plus pole of the current pulse driver, an either acidic or basic electrolytic bath be selected, the contacted holder be placed into the selected electrolytic bath (30), at least one electrode (20) be positioned at a predetermined distance from the holder and the latter be contacted with the negative pole of the power pulse generator (40), the decoating is performed by means of the current pulse driver, with endpoint detection being performed continuously or
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: January 30, 2018
    Assignee: Platit AG
    Inventors: Birgit Wittel, Gunnar Lahtz, Christian Buchel, Jan Prochazka, Andreas Lumkemann, Peter Walchli, Tibor Cselle
  • Patent number: 9777389
    Abstract: A method is provided for fabricating a nanopore in a membrane. The method includes: applying an electric potential across the membrane, where value of the electric potential is selected to induce an electric field which causes a leakage current across the membrane; monitoring current flow across the membrane while the electric potential is being applied; detecting an abrupt increase in the leakage current across the membrane; and removing the electric potential across the membrane in response to detecting the abrupt increase in the leakage current.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: October 3, 2017
    Assignee: THE UNIVERSITY OF OTTAWA
    Inventors: Wing Hei Kwok, Vincent Tabard-Cossa, Kyle Alexander Zarkel Briggs
  • Patent number: 9764403
    Abstract: A method for electrochemically processing a workpiece surface using an electrode, which has at least one effective surface for processing the workpiece surface, and using an electrolyte, wherein the electrolyte is suctioned away from the effective surface. The invention further relates to an electrode, which has at least one electrolyte feed for supplying the electrolyte to the effective area and an electrolyte suctioning system for suctioning the electrolyte away from the effective area.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: September 19, 2017
    Assignee: MTU Aero Engines GmbH
    Inventors: Erwin Bayer, Roland Huttner
  • Patent number: 9746765
    Abstract: Manufacturing an exterior décor panel for a home appliance includes laminating a photosensitive dry film on a front surface of a metal sheet, the photosensitive dry film having a higher etch resistance than the metal sheet against an electrolytic solution, photo-masking the photosensitive dry film attached to the metal sheet to create a pattern having a minimum width of 0.1 mm in the photosensitive dry film to thereby expose the front surface of the metal sheet corresponding to the pattern in the photosensitive film, electrolytic-polishing the photo-masked metal sheet by dipping the photo-masked metal sheet in an electrolytic bath to allow the electrolytic solution to contact the exposed front surface of the metal sheet and form the pattern in the front surface of the metal sheet, and performing post-treatment on the metal sheet, the post-treatment including washing and removing the photosensitive dry film.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: August 29, 2017
    Assignee: LG Electronics Inc.
    Inventors: Wonseok Choi, Taihun Lim, Seonkyu Kim, Bonghyang Kim
  • Patent number: 9333577
    Abstract: An electro discharge machining apparatus comprises an electrode configured to machine a desired feature in a workpiece, a pulse generator configured to energize the electrode and the workpiece to opposite electrical polarities, a machining solution source configured to pass a machining solution between the electrode and the workpiece, and a servomotor configured to drive the electrode to move relative to the workpiece. The electro discharge machining apparatus further comprises at least one detection element configured to detect machining signals, and a controller. The controller controls the pulse generator and the servomotor to machine the workpiece according to a plurality of first process parameters predetermined therein and analyzes the detected machining signals to generate a first response signal to activate a plurality of second process parameters predetermined therein and different from the first process parameters to machine the workpiece. An electro discharge machining method is also presented.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: May 10, 2016
    Assignee: General Electric Company
    Inventors: Peng Li, Bin Wei, Huiya Xu, Mark Joseph Gleason, William Charles Allison, Jeffrey Francis Wessels, John Fitzgerald Zurawka
  • Patent number: 9244039
    Abstract: A method for wetting a nanopore device includes filling a first cavity of the nanopore device with a first buffer solution having a first potential hydrogen (pH) value, filling a second cavity of the nanopore device with a second buffer solution having a second pH value, wherein the nanopore device includes a transistor portion having a first surface, an opposing second surface, and an orifice communicative with the first surface and the second surface, the first surface partially defining the first cavity, the second surface partially defining the second cavity, applying a voltage in the nanopore device, and measuring a current in the nanopore device, the current having a current path partially defined by the first cavity, the second cavity, and the orifice.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: January 26, 2016
    Assignee: International Business Machines Corporation
    Inventor: Venkat K. Balagurusamy
  • Patent number: 9244038
    Abstract: A method for wetting a nanopore device includes filling a first cavity of the nanopore device with a first buffer solution having a first potential hydrogen (pH) value, filling a second cavity of the nanopore device with a second buffer solution having a second pH value, applying a voltage in the nanopore device, and measuring a current in the nanopore device, the current having a current path partially defined by the first cavity, the second cavity, and an orifice communicative with the first cavity and the second cavity.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: January 26, 2016
    Assignee: International Business Machines Corporation
    Inventor: Venkat K. Balagurusamy
  • Patent number: 9074295
    Abstract: A method for etching Carbon Nanotube (CNT) sheet material for electrical circuit and thin film thermal structures. The method includes: forming an mask on a sheet of electrically conductive CNT material; and electrochemically removing unmasked portions of the CNT material.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 7, 2015
    Assignee: RAYTHEON COMPANY
    Inventors: James R. Chow, Carl W. Townsend
  • Patent number: 9039887
    Abstract: An example component finishing method includes immersing a surface of a component within a fluid during a finishing process. The method heats fluid near the surface during the finishing to create a convection current within the fluid that carries a byproduct of the finishing away from the surface.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: May 26, 2015
    Assignee: United Technologies Corporation
    Inventor: John P. Rizzo, Jr.
  • Patent number: 9039886
    Abstract: A method of transferring graphene includes depositing graphene on a side of at least one metal substrate to provide a metal substrate-graphene layer, stacking a target substrate on a side of the metal substrate-graphene layer to provide a stacked structure in which a side of the target substrate faces the graphene layer, and exposing the stacked structure to an electrolysis bath to remove the metal substrate and transfer the graphene onto the side of the target substrate.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: May 26, 2015
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Kuanping Gong, Lijie Ci, Sung-Hee Ahn, Jin-Seong Park, Byeong-Yeol Kim
  • Publication number: 20150132596
    Abstract: Provided are a heat-absorbing material having high heat resistance and high wavelength selectivity, and a process for producing the same. The heat-absorbing material includes: a heat-resistant metal having the substantially same periodic structure in the light incidence plane as the wavelength of sunlight having a specific wavelength in the wavelength regions of visible light and near-infrared rays; and a cermet formed on the light incidence plane of the heat-resistant metal. Thus, there can be achieved desirable absorption and radiation characteristics being such that absorption is performed in the visible light region meanwhile reflection is performed in the infrared region. Furthermore, the cermet does not need complicated film-formation control, and therefore, the high heat resistance can be maintained.
    Type: Application
    Filed: May 1, 2013
    Publication date: May 14, 2015
    Inventors: Takatoshi Yamada, Akio Takada, Hiroo Yugami, Fumitada Iguchi, Makoto Shimizu
  • Publication number: 20150123516
    Abstract: A method for producing a multilayer component (21) is specified, which involves providing a body having dielectric layers (3) arranged one above another and first and second electrically conductive layers (4, 84, 5, 85) arranged therebetween. The first conductive layers (4, 84) are connected to a first auxiliary electrode (6) and the second conductive layers (5, 85) are connected to a second auxiliary electrode (7). The body (1, 81) is introduced into a medium and a voltage is applied between the first and second auxiliary electrodes (6, 7) for producing a material removal. Furthermore, a multilayer component is specified, which has depressions (20) formed by an electrochemically controlled material removal.
    Type: Application
    Filed: June 6, 2013
    Publication date: May 7, 2015
    Inventors: Franz Rinner, Dieter Somitsch, Christoph Auer, Gerhard Fuchs
  • Publication number: 20150114846
    Abstract: Methods of forming a cutting element include disposing a volume of polycrystalline material adjacent a liquid electrolytic solution and applying an electrical between the polycrystalline material and a cathode in contact with the liquid electrolytic solution to increase an oxidation state of the metal catalyst material. The polycrystalline material includes interbonded grains of hard material and metal catalyst particles in the interstitial spaces between adjacent grains of hard material. Some methods include forming a barrier over a portion of a surface of a volume of polycrystalline material.
    Type: Application
    Filed: January 9, 2015
    Publication date: April 30, 2015
    Inventor: Oleg A. Mazyar
  • Publication number: 20150108001
    Abstract: Disclosed is a liquid processing jig for performing a predetermined processing on a workpiece using a processing liquid. The liquid processing jig includes: a liquid processing unit formed on a surface of the liquid processing jig and configured to perform a predetermined processing on the workpiece by the processing liquid; a liquid supplying unit configured to supply the processing liquid to the liquid processing unit; a liquid supplying channel configured to connect the liquid supplying unit and the liquid processing unit and supply the processing liquid from the liquid supplying unit to the liquid processing unit; and a liquid discharging channel configured to discharge the processing liquid from the liquid processing unit. The liquid supplying unit, the liquid supplying channel, the liquid processing unit, and the liquid discharging channel are provided to cause the processing liquid to flow by a capillary phenomenon.
    Type: Application
    Filed: October 21, 2014
    Publication date: April 23, 2015
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kazuo SAKAMOTO, Haruo IWATSU
  • Publication number: 20150104665
    Abstract: A method of manufacturing an article (such as a dental restoration) comprising taking an article, comprising at least one product (such as a dental restoration), in an initial state, formed from a powdered material, layer-by-layer and electrochemically processing at least a select region of the at least one product (such as a dental restoration) so as to smoothen at least said select region.
    Type: Application
    Filed: May 10, 2013
    Publication date: April 16, 2015
    Inventor: David Beeby
  • Patent number: 8980067
    Abstract: For electrolytically etching the surfaces of integrally bladed rotors (blisks) (6) made of nickel-base material for aircraft gas turbines, auxiliary cathodes (10), in addition to the main cathodes (3) provided in the electrolyte (1), are arranged in the area of the blades (9) remote from the electric contact points at the rotor disk (7). The auxiliary cathodes are adaptable in shape, arrangement and size to the blade and disk geometry, so that a uniform current flow from all parts of the rotor connected as anode via the electrolyte to the main and auxiliary cathodes is produced and an intense and uniform etching effect is achieved. This ensures a reliable structural assessment in all rotor areas and in particular also in the area of the integral blading.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: March 17, 2015
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Arno Secherling, Reinhard Koenig, Morgan Oparaugo
  • Patent number: 8961771
    Abstract: Processes and systems for electrolytically processing a microfeature workpiece with a first processing fluid and an anode are described. Microfeature workpieces are electrolytically processed using a first processing fluid, an anode, a second processing fluid, and a cation permeable barrier layer. The cation permeable barrier layer separates the first processing fluid from the second processing fluid while allowing certain cationic species to transfer between the two fluids. The described processes produce deposits over repeated plating cycles that exhibit deposit properties (e.g., resistivity) within desired ranges.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: February 24, 2015
    Assignee: APPLIED Materials, Inc.
    Inventors: Rajesh Baskaran, Robert W. Batz, Jr., Bioh Kim, Tom L. Ritzdorf, John L. Klocke, Kyle M. Hanson
  • Patent number: 8961870
    Abstract: The invention relates to an aluminum alloy lithographic sheet product having an enhanced electrolytic graining response in which Zn between 0.5 and 2.5 wt % is added to an aluminum base alloy, in particular an alloy of the 1XXX, 3XXX or 5XXX series alloys. The invention also relates to a method of producing a lithographic sheet product.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: February 24, 2015
    Assignee: Novelis Inc.
    Inventors: Andrew Coleman, David S. Wright, Nicolas Kamp, Jeremy Mark Brown
  • Patent number: 8962085
    Abstract: Disclosed are pre-wetting apparatus designs and methods. These apparatus designs and methods are used to pre-wet a wafer prior to plating a metal on the surface of the wafer. Disclosed compositions of the pre-wetting fluid prevent corrosion of a seed layer on the wafer and also improve the filling rates of features on the wafer.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: February 24, 2015
    Assignee: Novellus Systems, Inc.
    Inventors: Steven T. Mayer, David W. Porter, Mark J. Willey
  • Publication number: 20150041330
    Abstract: A method of removing a metal detail from a dielectric material of an article may include placing the article in an electrolyte bath such that at least a portion of the metal detail is submerged. The metal detail may be coupled to a dielectric material. The method may further include positioning at least one cathode in the electrolyte bath in spaced relation to the metal detail, and passing electrical current through the metal detail. The method may additionally include deplating the metal detail from the dielectric material in response to passing the electrical current through the metal detail.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 12, 2015
    Applicant: The Boeing Company
    Inventors: Robert T. Loftus, JR., Robert L. Knicely, Nicklaus C. Kimball
  • Publication number: 20150034494
    Abstract: A method includes rotating a first motor part around a first structure substantially similar to a second motor part. The method also includes applying a first current to the first structure to electro-chemically machine the first motor part.
    Type: Application
    Filed: August 1, 2013
    Publication date: February 5, 2015
    Applicant: Seagate Technology LLC
    Inventors: Timothy Edward Langlais, Chris M. Woldemar, Troy M. Herndon
  • Patent number: 8945343
    Abstract: An apparatus and a method for selectively etching an encapsulant forming a package of resinous material around an electronic device includes an electronic device package mountable on the etch head; a conductive electrode in electrical contact with package leads of the electronic device package to apply a first voltage to the package leads of the electronic device; a first pump configured to pump a first quantity of the etchant solution from the source into the etch head where the etchant solution is electrically biased to a second voltage different from the first voltage. An etch cavity is formed on an exterior surface of the electronic device package. When the etchant solution has etched through an exterior surface of the electronic device package, the conductive bond wires of the electronic device is prevented from being etched by the applied first voltage.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 3, 2015
    Assignee: Nisene Technology Group
    Inventor: Alan M. Wagner
  • Publication number: 20150028548
    Abstract: A tool holder with a main part, a deformable receiving portion for clamping a tool, and at least one blocking element which is designed to engage into a corresponding counter element on the tool in order to prevent the tool from moving axially out of the tool holder. The at least one blocking element is integrally formed with the receiving portion. A clamping system having such a tool holder and a method for producing a receiving portion for such a tool holder are also described.
    Type: Application
    Filed: December 20, 2012
    Publication date: January 29, 2015
    Inventor: Franz Haimer
  • Publication number: 20150021198
    Abstract: The present invention provides a continuous machining system and the machining method thereof. The machining system comprises a feeding module, an electrochemical machining module, and a separating module. The feeding module supplies a material strip continuously; the electrochemical machining module performs an electrochemical machining to the material strip. When the feeding module supplies the material strip to the electrochemical machining module continuously, the electrochemical machining module performs the electrochemical machining to the material strip continuously for forming continuously a plurality of components on the material strip. The separating module separates the plurality of components from the material strip. Thereby, the machining time is saved, and thus achieving the purposes of continuous machining and mass production.
    Type: Application
    Filed: November 6, 2013
    Publication date: January 22, 2015
    Applicant: METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTRE
    Inventors: HUNG-YI CHEN, JUNG-CHOU HUNG
  • Publication number: 20150008140
    Abstract: A method for manufacturing a microchannel cooling passage in a surface of a machine component that includes: forming an elongated open channel in the surface of the machine component, the open channel comprising a cross-sectional profile having a mouth and a floor, and, defined therebetween, a middle region; inserting a corresponding elongated electrode having a directional bias into the channel; and using the electrode as a tooling piece in an electrochemical machining process, widening the middle region of the open channel.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 8, 2015
    Inventors: BENJAMIN PAUL LACY, BIN WEI
  • Publication number: 20150001093
    Abstract: A method of manufacturing a component comprises forming a component on a conductive build plate. The component defines at least one access port and includes an inner surface that defines at least one internal passage. The method further includes forming at least one electrode within the at least one internal passage, wherein the at least one electrode is electrically isolated from the component. An electromotive force is applied to the at least one electrode to facilitate smoothing the inner surface.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 1, 2015
    Inventors: William Thomas Carter, John Broddus Deaton, JR., Andrew Lee Trimmer, Michael John Fornasiero
  • Patent number: 8920625
    Abstract: Provided is a particle that includes a first porous region and a second porous region that differs from the first porous region. Also provided is a particle that has a wet etched porous region and that does have a nucleation layer associated with wet etching. Methods of making porous particles are also provided.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: December 30, 2014
    Assignees: Board of Regents of the University of Texas System, The Ohio State University Research Foundation
    Inventors: Mauro Ferrari, Xuewu Liu, Ming-Cheng Cheng
  • Publication number: 20140360887
    Abstract: A method for electropolishing a medical device includes moving a plunger mechanism towards a side of the medical device to establish electrical contact between the medical device and an anode, the plunger mechanism moving transversely to a longitudinal axis of the medical device. Electropolishing the medical device following positioning the plunger mechanism and medical device and then removing the medical device and the anode from the electrolytic bath and unloading the medical device from the anode following electropolishing.
    Type: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Inventors: Anthony S. Andreacchi, Sophia L. Wong
  • Patent number: 8888967
    Abstract: A process for creating porous anode foil for use in an electrolytic capacitor of an implantable cardioverter defibrillator is provided. The process includes electrochemical drilling a plurality of etched metal foils in sequence one after the other in a bath containing electrochemical drilling (ECD) solution initially having a pH of less than 5. Alternatively, an etched foil sheet may be passed through the bath in a substantially continuous manner such that a portion of said etched foil sheet is in contact with the ECD solution is electrochemically drilled to generate pores.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: November 18, 2014
    Assignee: Pacesetter, Inc.
    Inventors: Jason Hemphill, Thomas F. Strange
  • Patent number: 8858778
    Abstract: The present invention provides a method for etching graphene using a DNA sample of a predetermined DNA shape. The DNA sample is preferably placed onto a reaction area of a piece of highly oriented pyrolytic graphite (HOPG), and both the DNA sample and HOPG are then preferably placed into a humidity-controlled chamber. Humidity is preferably applied to the HOPG to produce a film of water across the surface of the DNA sample. Electrical voltage is also applied to the HOPG to create potential energy for the etching process. After the etching is completed, the reaction area is typically rinsed with deionized water.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: October 14, 2014
    Inventor: Michael James Darling
  • Patent number: 8852447
    Abstract: A method for simultaneously detecting and separating a target analyte such as a protein or other macromolecule that includes providing a porous silicon matrix on the silicon substrate, exposing the porous silicon matrix to an environment suspect of containing the target analyte, observing optical reflectivity of the porous silicon matrix; and correlating the changes in the silicon substrate to the target analyte.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: October 7, 2014
    Assignee: The Regents of the University of California
    Inventors: Michael J. Sailor, Gaurav Abbi, Boyce E. Collins, Keiki-Pua S. Dancil
  • Publication number: 20140284216
    Abstract: According to the invention an electrochemical deposition or polishing clamber including: a support for a substrate, the support having an in-use position; a housing having an interior surface and a fluid outlet pathway for removing an electrolyte from the chamber, wherein the fluid outlet pathway includes one or more slots which extend into the housing from at least one slotted opening formed in the interior surface; a seal for sealing the housing to a peripheral portion of a surface of a substrate position on the support in its in-use position; and a tilting mechanism for tilting the chamber in order to assist in removing electrolyte from the housing through the fluid outlet pathway.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 25, 2014
    Applicant: PICOFLUIDICS LIMITED
    Inventor: John MACNEIL
  • Publication number: 20140246399
    Abstract: A copper foil for producing graphene having a ratio (Ra1/Ra2) between an arithmetic mean roughness Ra1 in a rolling direction and an arithmetic mean roughness Ra2 in a direction transverse to rolling direction of 0.7 <=(Ra1/Ra2) <=1.3.
    Type: Application
    Filed: October 26, 2012
    Publication date: September 4, 2014
    Applicant: JX Nippon Mining & Metals Corporation
    Inventor: Yoshihiro Chiba
  • Publication number: 20140238872
    Abstract: Systems and methods for separating components of a multilayer stack of electronic components are disclosed herein. The multilayer stack may include an electronic assembly, a substrate, and a sacrificial anode portion that is located between the electronic assembly and the substrate and that operatively attaches the electronic assembly to the substrate. The methods may include locating the multilayer stack within an electrically conductive fluid to form an electrochemical cell and generating a potential difference between a cathode portion of the electronic assembly and the sacrificial anode portion. The methods further may include separating the electronic assembly from the substrate by electrochemically oxidizing the sacrificial anode portion to dissolve the sacrificial anode portion within the electrically conductive solution.
    Type: Application
    Filed: April 28, 2014
    Publication date: August 28, 2014
    Applicant: The Boeing Company
    Inventors: Robyn L. Woo, Xiaobo Zhang, Christopher M. Fetzer, Eric M. Rehder
  • Patent number: 8815061
    Abstract: An electropolishing fixture with a plunger mechanism. The plunger mechanism can establish contact between a device and an anode mandrel during an electropolishing process while the device is immersed in an electrolytic bath.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 26, 2014
    Assignee: Abbott Cardiovascular Systems, Inc.
    Inventors: Anthony S. Andreacchi, Sophia L. Wong
  • Publication number: 20140231270
    Abstract: Methods of delaminating a graphene film (60) from a metal substrate (50) are disclosed that substantially preserve the metal substrate. The methods include forming a support layer (80) on the graphene film and then performing an electrochemical process in an electrochemical apparatus (10). The electrochemical process creates gas bubbles (36) at the metal-film interface (64), thereby causing the delamination. The graphene film and support layer form a structure (86) that is collected by a take-up roller (120). The support layer and graphene structure are then separated to obtain the graphene film.
    Type: Application
    Filed: September 4, 2012
    Publication date: August 21, 2014
    Applicant: National University of Singapore
    Inventors: Kian Ping Loh, Yu Wang
  • Patent number: 8808560
    Abstract: The utilization of single crystal diamond in a nano- or micro-machine (N/MEMS) device is difficult, and there has been no report on such utilization. The reason for this resides in that it is difficult to grow single crystal diamond on an oxide which is a sacrifice layer. In a conventional technique, a cantilever or the like is produced by forming polycrystalline diamond or nanodiamond on an oxide as a sacrifice layer, but the mechanical performance, vibration characteristics, stability, and reproducibility of the produced cantilever or the like are unsatisfactory. In the present invention, utilizing the fact that the high concentration ion-implanted region in a diamond substrate 101 is modified into graphite, the layer 104 modified into graphite as a sacrifice layer is removed by electrochemical etching to obtain the diamond layer remaining on the resultant substrate as a movable structure. The produced cantilever 106 exhibited high frequency resonance.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: August 19, 2014
    Assignee: National Institute for Materials Science
    Inventors: Meiyong Liao, Yasuo Koide, Shunichi Hishida
  • Publication number: 20140225498
    Abstract: A plasma device is disclosed. The plasma device includes: at least one electrode including a nanoporous dielectric layer disposed on at least a portion thereof, the nanoporous dielectric layer including a plurality of pores, wherein at least a portion of the plurality of pores include a catalyst embedded therein.
    Type: Application
    Filed: January 16, 2014
    Publication date: August 14, 2014
    Applicant: Colorado State University Research Foundation
    Inventors: IL-GYO KOO, JIN HOON CHO, MYEONG YEOL CHOI, CAMERON A. MOORE, GEORGE J. COLLINS
  • Publication number: 20140228934
    Abstract: The invention relates to a method of manufacture of an intravascular functional element that can be introduced into a hollow organ and that comprises at least one wire (10) of an alloy having nickel and titanium as alloying elements, with the following steps: preparation of a metal body of the wire (10) with a metallic surface, then formation of a first oxide layer on the metallic surface of the metal body, then performance of a heat treatment of the wire (10) in a nitrogen-containing salt bath for thermal formation of a second mixed oxide layer on the first oxide layer, wherein the total layer thickness is 15 nm to 100 nm and the mixed oxide layer contains TiO2 and at least one nitride, especially titanium oxynitride and/or titanium nitride.
    Type: Application
    Filed: February 11, 2014
    Publication date: August 14, 2014
    Applicant: Admedes Inc
    Inventors: Andreas Schüßler, Gerd Siekmeyer, Giorgio Cattaneo, Werner Mailänder
  • Patent number: 8764515
    Abstract: An example component machining method includes immersing a surface of a component within a fluid during a machining process. The method heats the surface during the machining to vary the machining process at the surface relative to other surfaces of the component.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: July 1, 2014
    Assignee: United Technologies Corporation
    Inventor: John P. Rizzo, Jr.
  • Publication number: 20140178637
    Abstract: Provided are low friction coatings with improved abrasion, wear resistance and methods of making such coatings. In one form, the coating includes: i) an under layer selected from the group consisting of CrN, TiN, TiAlN, TiAlVN, TiAlVCN, TiSiN, TiSiCN, TiAlSiN and combinations thereof, wherein the under layer ranges in thickness from 0.1 to 100 ?m, ii) an adhesion promoting layer selected from the group consisting of Cr, Ti, Si, W, CrC, TiC, SiC, WC, and combinations thereof, wherein the adhesion promoting layer ranges in thickness from 0.1 to 50 ?m and is contiguous with a surface of the under layer, and iii) a functional layer selected from the group consisting of a fullerene based composite, a diamond based material, diamond-like-carbon and combinations thereof, wherein the functional layer ranges from 0.1 to 50 ?m and is contiguous with a surface of the adhesion promoting layer.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Srinivasan Rajagopalan, Tabassumul Haque, Mehmet Deniz Ertas, Adnan Ozekcin, HyunWoo Jin, Bo Zhao
  • Patent number: 8758590
    Abstract: Disclosed is a method of treating the surface of an electrically conducting substrate surface wherein a tool comprising an ion-conducting solid material is brought into contact at least in some areas with the substrate surface. The tool conducts the metal ions of the substrate and an electric potential is applied so that an electrical potential gradient is applied between the substrate surface and the tool in such a manner that metal ions are drawn from the substrate surface or deposited onto the substrate surface by means of the tool.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: June 24, 2014
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Hans-Joachim Quenzer, Gerfried Zwicker
  • Patent number: 8747649
    Abstract: An apparatus and method for electrochemically treating the struts of an intravascular stent is disclosed. An intravascular stent is mounted in a chamber and is electrochemically treated in order to remove a portion of the stent struts in order to form an airfoil shape. The airfoil-shaped stent struts will reduce turbulent blood flow in the vasculature in which the stent is implanted thereby improving clinical outcome.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: June 10, 2014
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventor: Randolf von Oepen