Elements Patents (Class 204/279)
  • Patent number: 7976687
    Abstract: Provided is a roll unit to be dipped in a surface treatment liquid of a copper foil, wherein a bearing box for housing a roil shaft is configured from two bearing boxes that are divisible, one of the bearing boxes is configured from a roll-side bearing box arranged on a roll main body-side and the other bearing box is configured from a shaft end-side bearing box arranged on the shaft end-side of the roll, a shaft sleeve covering an outer periphery of the roll shaft is provided in the roll-side bearing box and an oil seal is provided along an outer periphery of the shaft sleeve, and a bearing for rotatably supporting the shaft is disposed in the shaft end-side bearing box.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: July 12, 2011
    Assignee: JX Nippon Mining & Metals Corporation
    Inventor: Haruo Sato
  • Patent number: 7976685
    Abstract: Pot tending module (7) for a series of electrolytic cells for production by igneous electrolysis, including a chassis (8) that can be fixed to a trolley (6) moving along a travelling crane (4) and provided with a set of tools, particularly including at least one anode handling device (11), which is also provided with at least two display means (41 and 42) capable of taking views and transmitting them in the form of electromagnetic signals, typically two video cameras, the display means disposed at a distance from each other and from the working area, to be able to aim at the working area (23) of the anode handling device(s) along two non-parallel directions (D1) and (D2), forming an angle preferably close to 90°. This pot tending module may also include a third camera (43) that presents an overview of the tools and working areas for these tools, and a fourth camera (44) fixed onto the base of the anode grab actuators.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: July 12, 2011
    Assignee: E.C.L.
    Inventor: Benoit Wartelle
  • Publication number: 20110114479
    Abstract: Composite materials comprising titanium diboride and boron nitride that are used to line electrolytic aluminum production cells are disclosed. The composite materials may be used to line the side walls and/or bottom wall of the cell. The ratio of titanium diboride to boron nitride may be controlled in order to provide the desired level of electrical conductivity depending upon the particular region of the cell in which the liner plate is installed. The titanium diboride/boron nitride composite materials exhibit desirable aluminum wetting behavior, and are capable of withstanding exposure to molten cryolite, molten aluminum and oxygen at elevated temperatures during operation of the electrolytic aluminum production cells.
    Type: Application
    Filed: November 13, 2009
    Publication date: May 19, 2011
    Applicant: Kennametal Inc.
    Inventors: Russell Lee Yeckley, Robinson Lattimer, Sean Erin Landwehr
  • Patent number: 7935231
    Abstract: Embodiments of a closed-contact electroplating cup assembly that may be rapidly cleaned while an electroplating system is on-line are disclosed. One disclosed embodiment comprises a cup assembly and a cone assembly, wherein the cup assembly comprises a cup bottom comprising an opening, a seal surrounding the opening, an electrical contact structure comprising a plurality of electrical contacts disposed around the opening, and an interior cup side that is tapered inwardly in along an axial direction of the cup from a cup top toward the cup bottom.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: May 3, 2011
    Assignee: Novellus Systems, Inc.
    Inventors: Shantinath Ghongadi, Robert Rash, Jeff Hawkins, Seshasayee Varadarajan, Tariq Majid, Kousik Ganesan, Bryan Buckalew, Brian Evans
  • Patent number: 7918974
    Abstract: The invention relates to an insulating frame of an electrolysis cell having a microstructured internal section allowing the penetration of the electrolyte even if the structured section is partly or completely overlapped by the membrane, and to an electrolysis cell equipped with the same.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: April 5, 2011
    Assignee: Uhdenora S.p.A.
    Inventors: Ulf Bäumer, Randolf Kiefer, Karl Heinz Dulle, Stefan Oelmann, Peter Woltering, Wolfram Stolp
  • Publication number: 20110056842
    Abstract: In a process for the operation of copper electrolysis cells including a plurality of anode and cathode plates arranged vertically and parallel to each other, a longitudinal electrolyte inflow and an electrolyte outflow, the electrolyte is injected via the electrolyte inflow horizontally and parallel to the electrodes in each electrode gap always at the height of the lower third of the electrodes at a speed of from 0.3 to 1.0 m/s, with the cathode plates being arranged stationarily relative to the inflow direction. As a result, an optimized flow guidance of the electrolyte with regard to the electrodes is achieved, resulting in an increase in the limiting current density.
    Type: Application
    Filed: August 7, 2008
    Publication date: March 10, 2011
    Applicant: METTOP GMBH
    Inventors: Andreas Filzwieser, Iris Filwieser
  • Patent number: 7901548
    Abstract: The invention relates to an electrolytic cell for the production of chlorine from an aqueous alkali halide solution, which mainly consists of two semi-shells, an anode, a cathode and an ion exchange membrane arranged between the electrodes. Spacer elements are arranged between the ion-exchange membrane and the electrodes for fixing the membrane in position and distributing the compressive forces, made of electrically conductive and corrosion-resistant material on at least one side of the membrane.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: March 8, 2011
    Assignee: Uhdenora S.p.A.
    Inventors: Roland Beckmann, Karl Heinz Dulle, Randolf Kiefer, Peter Woltering
  • Publication number: 20110053042
    Abstract: Disclosed is a fluororesin-coated polymer film for reinforcing a polymer electrolyte membrane, wherein the fluororesin-coated polymer film is fabricated by forming on at least one side of a polymer film a coating of a reaction product of (A) a fluorine-containing copolymer composed of a fluoroolefin, a cyclohexyl group-containing acrylic ester, and a hydroxyl group-containing vinyl ether, and (B) a crosslinking agent having two or more isocyanate groups. The polymer film according to the present invention not only exhibits sufficiently high initial adhesion strength, with respect to the polymer electrolyte membrane, but also retains thereafter high adhesion strength in actual operating environments.
    Type: Application
    Filed: January 15, 2009
    Publication date: March 3, 2011
    Inventors: Hideki Yamada, Shizu Okazaki, Hiroyoshi Fujimoto
  • Patent number: 7897024
    Abstract: A conducting belt is used with an anode holder for supplying an electric current to an anode for plating a surface of a substrate such as a semiconductor wafer. The anode and the substrate are vertically disposed so as to face each other in a plating tank of a plating apparatus. The conducting belt includes a belt capable of contacting an outer circumferential edge of the anode and holding the anode.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: March 1, 2011
    Assignee: Ebara Corporation
    Inventors: Mitsutoshi Yahagi, Kenichi Abe, Yuji Araki, Yoshio Minami, Tomoyasu Nagayumi
  • Publication number: 20110042207
    Abstract: Problem to be Solved To provide a processing tank with a simple construction which enables fluidization and agitation of a processing liquid in order to reliably prevent settling of the processing liquid.
    Type: Application
    Filed: January 21, 2009
    Publication date: February 24, 2011
    Inventors: Kazuaki Takahashi, Shunsuke Watanabe
  • Patent number: 7887680
    Abstract: An anode rod is placed between two hooks fixed to an anode beam and onto which a connector bears, including two levers, two coaxial lateral rods and a screw that can pivot levers between a clamping position of the anode rod in contact with the anode beam and a release position. The geometry of at least one hook, a lever and/or a lateral rod and the material from which they are formed are such that the elastic deformation of the holding device with respect to the anode beam when the screw is tightened is sufficient. Thus, this device can compensate for a change in the position of the anode rod by elastic return towards its unstressed position, and thus continues to keep the anode rod firmly in contact with the anode beam.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: February 15, 2011
    Assignee: E. C. L.
    Inventor: Xavier Delcorde
  • Publication number: 20110011736
    Abstract: Illustrative embodiments of the present invention are directed to a cartridge for use with an electrolytic cell having an interface. The cartridge includes a reservoir for containing a catholyte solution. The reservoir is removably coupleable with the cell. The cartridge also includes at least one cartridge port that is removably coupleable to an interface on the electrolytic cell. The port of the cartridge is also configured to cycle a catholyte solution between the reservoir and the electrolytic cell when the cartridge port is coupled to the interface of the electrolytic cell.
    Type: Application
    Filed: April 28, 2010
    Publication date: January 20, 2011
    Inventors: William J. Yost, III, Carl David Lutz, Robert M. Genco
  • Patent number: 7857954
    Abstract: This invention relates to pot tending module intended for aluminium production plants by fused bath electrolysis. According to the invention, the turret (9) of the pot tending module (7) is equipped with a determined set of tools, in which the tool (101, 102, 103) is mounted on a telescopic arm (111, 112, 113) fixed to the turret (9) through an articulated support (121, 122, 123) that enables pendular movements of the telescopic arm with respect to a determined articulation point while preventing rotation movements of the telescopic arm about its principal axis. The telescopic arms are connected to each other through a mechanical connecting device (200) capable of maintaining the relative angular difference between the pendular movements of the telescopic arms within a determined tolerance range. The invention enables the tools to be arranged closer to each other without any risk that they will collide during use.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: December 28, 2010
    Assignee: E.C.L.
    Inventors: Alain Van Acker, Stéphane David
  • Patent number: 7857950
    Abstract: A mounting plate assembly for selectively securing a sacrificial anode to the exposed surface of a tank or boat hull. The mounting plate assembly provides for a pair of watertight space mounting studs to be extended through the attached surface and provide anode engagement thereon. The studs are welded to both the mounting plate and a fixation nut on the plate to which the anode is correspondingly registerably engaged.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: December 28, 2010
    Inventor: James North
  • Patent number: 7854825
    Abstract: A symmetrical double-double contact mechanism for an electro-deposition mechanism. Using a base insulator, a cap block insulator is formed to support four series of electrodes of two different types (anode and cathode). Because of the contact mechanism employed, redundant contacts are provided so that should a short occur, alternative electrical pathways are available to maintain operation of the affected cathode or anode.
    Type: Grant
    Filed: December 1, 2007
    Date of Patent: December 21, 2010
    Inventor: William Ebert
  • Publication number: 20100280347
    Abstract: Embodiments of the invention provide analyte sensors having optimized permselective membranes and methods for making and using such sensors. Embodiments of the invention also provide analyte sensors such as those having porous matrices coated with an analyte sensing composition and methods for making and using such sensors. Illustrative embodiments include electrochemical glucose sensors having glucose oxidase coatings.
    Type: Application
    Filed: May 20, 2010
    Publication date: November 4, 2010
    Inventors: Rajiv Shah, Gopikrishnan Soundararajan, Rebecca K. Gottlieb, Udo Hoss, Eric A. Grovender, Shaun M. Pendo
  • Patent number: 7824527
    Abstract: The present invention is directed to a frame for an electrolyser module as well as to an electrolyser module and an electrolyser incorporating such frames. The frames include a variety body having at least one electrolyser chamber opening and at least one degassing chamber defined therein. The degassing chamber opening preferably has a rounded shape as does the unitary body and the electrolyser chamber opening.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: November 2, 2010
    Inventor: Hugo Jan Baptist Vandenborre
  • Patent number: 7815778
    Abstract: A polishing pad includes at least one conductive polishing element supported by a compressible under layer having conductive patterning therein, the conductive patterning adapted to permit coupling of a potential to the conductive polishing element; a guide plate above the compressible under layer, the guide plate having a hole through which the polishing element passes and further having a cathodic element connected thereto; and a slurry distribution layer adhered to the guide plate opposite the compressible under layer. The polishing pad may further include a proton exchange membrane placed over the cathodic element. A semiconductor wafer having a metal film thereon may be polished using the polishing pad by placing the wafer in contact with the polishing element, applying anodic current to the polishing element and cathodic current to the cathodic element, and polishing with an anodic solution. For copper films, a sulfuric acid-copper sulfate solution may be used.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: October 19, 2010
    Assignee: Semiquest Inc.
    Inventor: Rajeev Bajaj
  • Publication number: 20100258435
    Abstract: A system to monitor, control and management of a plant where hydrometallurgical processes of electrowinning or electrorefining of non ferrous metals which enables measuring the process variables which comprises: at least one group of electrolytic cells, said cells having means for the collection and transmission of the variables of the process; a plurality of electrodes (5) installed in the interior of each electrolytic cell, making up, alternately, anodes and cathodes of basic cells; a plurality of electrode (5) hanger bars forming, alternately, hanger bars for electrical contact of anodes (20) and hanger bar for electrical contact of cathodes (18); a plurality of support electrical insulators (15) which are positioned in the upper portion of the lateral walls between two adjacent cells; a plurality of electrical bus bars (6) which are fitted on top of each support electrical insulator (15) and underneath the plurality of electrodes (5); a plurality of electrical spacer insulators (16) each spacer insulator
    Type: Application
    Filed: July 30, 2008
    Publication date: October 14, 2010
    Applicant: ANCOR TECMIN S.A.
    Inventor: Victor Vidaurre Heiremans
  • Publication number: 20100258434
    Abstract: A collector bar for electrical connection to a busbar system of an electrolytic cell, the collector bar being received within a recess in a cathode block of the cathode of the electrolytic cell; wherein the collector bar comprises a first conductor which electrically connects to the busbar system, the first conductor having an external surface or surfaces which electrically contact the cathode block and at least one second conductor having a lower electrical resistance to the first conductor, the second conductor being positioned on at least one external surface of the first conductor in electrical contact with the first conductor.
    Type: Application
    Filed: October 29, 2008
    Publication date: October 14, 2010
    Inventors: Ingo Bayer, Bruce Ringsby Olmstead
  • Patent number: 7780823
    Abstract: A tending module (7) for a series of electrolytic cells (2) to be used for the production of aluminum by fused bath electrolysis including a frame (8) that can be fixed to a trolley (6) and a turret (9) fitted on the frame (8) so as to pivot about a vertical axis A, and equipped with a set of tools including a crust breaker (11), a bucket shovel (12), at least one first anode clamp (13) and a hopper (15) fitted with a retractable duct (16), and a balcony or a cab (18) having controls that will be used to maneuver the module and the tools, and a control station (19) from which an operator can actuate the controls.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: August 24, 2010
    Assignee: E.C.L.
    Inventors: Alain Van Acker, Patrick Delescluse, Benoit Morel
  • Publication number: 20100176003
    Abstract: Anode and cathode separator plates are suitable for use in ion pumps for converting an input stream such as reformate into a pressurized and purified hydrogen-rich gas stream. The plates may include a single cathode outlet opening forming a portion of cathode output gas manifold, an anode inlet opening forming a portion of an inlet gas stream manifold and being sized larger than inlet cathode outlet opening, the distance of the anode inlet opening to an edge of the plate being less than the distance of the cathode outlet opening from an edge of the plate, and the size of the fluid flow channel of the anode separator plate being smaller than the size of the fluid flow channel of the cathode separator plate. Methods for forming the plates and infrastructure systems are also disclosed.
    Type: Application
    Filed: February 15, 2010
    Publication date: July 15, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Arne W. Ballantine, David C. Kirchhoff, James F. McElroy, Michael P. Gordon
  • Patent number: 7727365
    Abstract: A suction pad used for use in a substrate treatment apparatus which treats a substrate by immersing the substrate in a solution while the pad attaches to the substrate, including: a main face for attaching to the substrate; an outer face disposed along the outer periphery of the substrate; and a suction opening formed in the main face. In a cross-sectional shape including the main face and the outer face, the angle formed between a line corresponding to the main face and a line corresponding to the outer face is an acute angle.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: June 1, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shigeru Kido
  • Publication number: 20100101950
    Abstract: A ceramic joining unit, ceramic heater and gas sensor, the ceramic joining unit including: a ceramic base member; an electrode pad provided on a surface of the ceramic base member; a coupling terminal; and a joining portion, wherein the electrode pad includes: a first layer in contact with the ceramic base member; and a second layer laminated on a surface of the first layer and in contact with the joining portion, wherein each of the first and second layers contains a ceramic material as a main component, a content of the ceramic material in the first layer is greater than that of the second layer, and a contour of the first layer is located outside of a contour of the second layer at an entire periphery of the first layer.
    Type: Application
    Filed: October 23, 2009
    Publication date: April 29, 2010
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Kikuo SAKURAI, Tomohiro KUWAYAMA
  • Publication number: 20100092809
    Abstract: Fabrication techniques are disclosed for the formation of electrically conductive, optically transparent films of exfoliated graphite nanoparticles (EGN). The techniques allow the controlled deposition of EGN nanoplatelets (graphene sheets) and other nanoparticles (e.g., metals, metal oxides) in compact monolayer or multilayer film structures. The compact films have high electrical conductivities and optical transparencies in the visible spectrum of electromagnetic radiation. A first method relates to the deposition of nanoparticles onto a substrate from a bulk suspension using a convective assembly technique. A second method relates to the suspension deposition of EGN nanoplatelets from a from a liquid-liquid interface onto a substrate. Both methods can be used to form EGN film-coated substrates. The second method also can be used to form multilayer, free-standing, defect-free EGN films.
    Type: Application
    Filed: October 9, 2009
    Publication date: April 15, 2010
    Applicant: Board of Trustees of Michigan State University
    Inventors: Lawrence T. Drzal, Sanjib Biswas
  • Publication number: 20100065490
    Abstract: A method for producing an ion-permeable membrane which has at least one profiled surface includes contacting a shaping element with an uncured polymer film which contains at least one polymer, impressing the shaping element onto the polymer film and generating a regular pattern of identically or differently structured elevations and/or recesses on the polymer film.
    Type: Application
    Filed: April 10, 2008
    Publication date: March 18, 2010
    Applicant: Fuma-Tech Gesellschaft fur funktionelle Membranen und Anlagentechnologie mbH
    Inventors: Jörg Henning Balster, Dimitrios Stamatialis, Matthias Wessling
  • Patent number: 7678247
    Abstract: A device that supports a remote identifier for permanent cathodes in the electro-winning process. A preferred embodiment of the invention provides a support for a proximity identification device for permanent cathodes that, when interconnected with a remote system, provides for a record of its behavior and position in time of each cathode during its useful life in an electro-winning process.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: March 16, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Mauricio Ribes Fernandez, Hernan Conejeros Obreque, Alexander Cepeda Rojas
  • Publication number: 20100051451
    Abstract: Provided is a roll unit to be dipped in a surface treatment liquid of a copper foil, wherein a bearing box for housing a roil shaft is configured from two bearing boxes that are divisible, one of the bearing boxes is configured from a roll-side bearing box arranged on a roll main body-side and the other bearing box is configured from a shaft end-side bearing box arranged on the shaft end-side of the roll, a shaft sleeve covering an outer periphery of the roll shaft is provided in the roll-side bearing box and an oil seal is provided along an outer periphery of the shaft sleeve, and a bearing for rotatably supporting the shaft is disposed in the shaft end-side bearing box.
    Type: Application
    Filed: December 11, 2007
    Publication date: March 4, 2010
    Inventor: Haruo Sato
  • Patent number: 7670473
    Abstract: The present invention is directed to a top surface of a workpiece surface influencing device and a method of using the same. The top surface of the workpiece surface influencing device is adapted for use in an electrochemical mechanical processing apparatus in which a solution becomes disposed onto a conductive surface of a workpiece and electrochemical mechanical processing of the conductive surface is performed while relative movement and physical contact exists between the top surface and the conductive surface. The top surface comprises a ceramic material that presents a substantially planar contact area to the conductive surface, the ceramic material having a hardness greater than that of the conductive surface. A plurality of channels are formed through the top surface.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: March 2, 2010
    Inventors: Cyprian E. Uzoh, Bulent M. Basol
  • Patent number: 7645365
    Abstract: An ionically conductive ceramic element (20) comprises a plurality of tubes (30) each having interior (24) and exterior (38) surfaces and closed (48) and open (50) ends. A tube support (14) receives open tube ends (50). A first electrically conductive coating (36) is formed on the exterior tube surfaces (38). A second coating (22) is formed on the interior tube surfaces (24). A bottom electrically conductive stripe (16) makes electrical connections between second coatings (22) on the interior tube surfaces (24). A top electrically conductive stripe (40) creates electrical connections between first coatings (36) on the exterior tube surfaces (38). The top and bottom stripes are connected such that at least one stripe (40) on the top is electrically connected to at least one stripe (16) on the bottom.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: January 12, 2010
    Assignee: Carleton Life Support Systems, Inc.
    Inventors: Zhonglin Wu, Tuan Q. Cao
  • Publication number: 20090294283
    Abstract: Cell frame for high-pressure water electrolyzer and method of manufacturing the same. According to one embodiment, radial openings in a water electrolyzer frame are provided by laminating half-frames, one or both of which contains grooves that may be formed by molding, machining or die-cutting. Another to another embodiment, radial openings are provided by laminating three or more thin frame portions, the center piece of which may include transverse slots that may be made by molding, machining or die-cutting. According to yet another embodiment, two or more frame portions are provided, at least one of which includes a recess for receiving a porous structure. The frames of the present invention can be additionally laminated to the membrane and electrode assembly, as well as the bipolar separator plate in the perimeter or seal area, comprised of the same or similar material as the frame, to form unitized electrolyzer stack subassemblies or full assemblies.
    Type: Application
    Filed: May 5, 2009
    Publication date: December 3, 2009
    Inventors: Timothy J. Norman, Robert W. Milgate, Robert Stone, Edwin W. Schmitt, Anthony B. LaConti
  • Patent number: 7618519
    Abstract: This invention relates to a cathode element for use in a pot of an electrolytic cell intended for production of aluminum. The cathode element comprises a cathode block and a steel connection bar. The connection bar includes at least one metal insert, whose electrical conductivity is greater than the electrical conductivity of the said steel. The presence of an insert according to the invention can simultaneously result in a very large drop in the global cathode voltage and a very strong reduction in the current density at the head of the block.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: November 17, 2009
    Assignee: Aluminum Pechiney
    Inventors: Delphine Bonnafous, Jean-Luc Basquin, Claude Vanvoren
  • Patent number: 7619183
    Abstract: A cooking appliance comprising an electrolyzer which produces a combustible fuel, a burner downstream from the electrolyzer, and, an electrically heatable cooking surface on which food is receivable for cooking, the electrically heatable cooking surface being operable simultaneously with the electrolyzer.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: November 17, 2009
    Assignee: Cropley Holdings Ltd.
    Inventor: Wayne Ernest Conrad
  • Publication number: 20090229990
    Abstract: The present invention is directed to cell plates for an electrolyser module and to an electrolyser module incorporating the plates. The plates comprise an electrolysis chamber opening, at least one degassing chamber opening, and at least one gas-liquid conduit opening. The plates further comprise a channel connecting the electrolysis chamber opening and the gas-liquid conduit opening. The present invention is directed further to a process and apparatus for separating a gas-liquid mixture generated at an electrolysis cell.
    Type: Application
    Filed: December 7, 2005
    Publication date: September 17, 2009
    Applicant: Stuart Energy Systems Corporation
    Inventors: James T. Hinatsu, Michael C. Stemp
  • Publication number: 20090229974
    Abstract: The Tamian Fusion Cell is a uniquely designed electrolytic cell that promotes the process of nuclear fusion. The cell consists of an outer cylinder whose inner surface is lined with palladium (Pd), a middle cylinder of platinum (Pt), which acts as an ion “kicker”, and a central palladium (Pd) electrode post. The middle (Pt) cylinder is perforated, allowing for the electrolyte and ions to flow from the outer cell chamber through these holes to the inner cell chamber and vice versa. A dual-polarity, direct current power supply is connected to the cell by either a “double-pole double-throw” switch or by an “integrated timing circuit”. The purpose of the I.C. timing circuit or switch is to periodically reverse the polarities of the cell's palladium electrodes, which creates a fluctuating ion flow, whereby promoting constant fusion at the negative palladium electrode.
    Type: Application
    Filed: March 15, 2008
    Publication date: September 17, 2009
    Inventor: Richard Tamian
  • Publication number: 20090229985
    Abstract: A semiconductor device production method of the present invention first collects data including an initial volume of plating solution, volume of replenished solution, number of wafers processed, value of current applied and volume of waste solution in a step of filling a metal plating film in a via hole or a trench formed in an insulating film on a semiconductor substrate. Then, a cumulative charge during the plating is calculated based on the obtained current value. Also, a total volume of plating solution is calculated. Furthermore, an amount of decomposition products of suppressors contained in the plating solution based on the calculated total volume of plating solution, the volume of waste solution and the calculated cumulative charge. The semiconductor substrate is plated only when the amount of decomposition products is equal to or smaller than a predetermined threshold.
    Type: Application
    Filed: March 9, 2009
    Publication date: September 17, 2009
    Inventors: Shin-ichi IMAI, Tomoya Tanaka, Masakai Kitabata
  • Publication number: 20090220843
    Abstract: The invention relates to blends and blend membranes from low-molecular hydroxymethylene-oligo-phosphonic acids R—C(PO3H2)x(OH)y and polymers, the group R representing any organic group and the polymers containing the following functional groups: cation exchanger groups or their nonionic precursors of the type SO2X, X=Hal, OH, OMe, NR1R2, OR1 with Me=any metal cation or ammonium cation, R1, R2=H or any aryl- or alkyl group, POX2, COX and/or basic groups such as primary, secondary or tertiary amino groups, imidazole groups, pyridine groups, pyrazole groups etc. and/or OH groups. Low molecular hydroxymethylene-oligo-phosphonic acids R—C(PO3H2)x(OH)y are preferred in which x=2 and y=1. The invention also relates to low-molecular hydroxymethylene-oligo-phosphonic acids R—C(PO3H2)2(OH)1 and polymers, wherein the group R of the hydroxymethylene-oligophosphonic acid contains an aliphatic or aromatic basic group which ionically interacts with the acidic groups of the polymer or of the polymer mixture.
    Type: Application
    Filed: February 5, 2007
    Publication date: September 3, 2009
    Inventors: Thomas Haring, Jochen Kerres, Frank Schönberger, Martin Hein
  • Patent number: 7550070
    Abstract: An electrode assembly includes a distribution plate having a plurality of grooves that communicate with openings in an overlying polishing pad layer. The grooves include end openings that allow for draining of process solution, both during processing and subsequent cleaning/rinsing of the pad. Drainage occurs continually during processing, cleaning and rinsing, and so is constricted through the end openings relative to the grooves, to prevent wastage. The end openings are sufficiently large, however, to substantially completely drain fluids from the grooves between steps without delaying robotic motions.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: June 23, 2009
    Assignee: Novellus Systems, Inc.
    Inventors: Bulent M. Basol, Jeffrey Bogart
  • Publication number: 20090152107
    Abstract: A current collector structure that is used to distribute an electrical potential to an electrode layer of an electrochemical cell. The electrochemical cell has an electrolyte layer adjacent the electrode layer for transport of oxygen ions. The current collector structure has a porous, electrically conductive layer located on the electrode layer. Additionally, at least one elongated strip-like layer formed of an electrically conductive material is located on the porous, electrically conductive layer, opposite the electrode and oriented in a lengthwise direction of the electrode layer.
    Type: Application
    Filed: December 17, 2007
    Publication date: June 18, 2009
    Inventors: David Matthew Reed, Joey Michael Corpus, Jerrine Louise Neff, Jonathan A. Lane
  • Publication number: 20090152124
    Abstract: In various embodiments, the present invention provides an electrolytic cell contact bar having a first pole and a pair of second poles. The second poles are opposite in charge to the first pole and each of the pair of second poles are adjacent to and parallel to the first pole. In various embodiments, the contact bar may include an electrode holder capable of holding at least one electrode.
    Type: Application
    Filed: November 6, 2008
    Publication date: June 18, 2009
    Inventors: Brett Ashford, William A. Ebert, Fernando D. Mollo Vega, Samuel Rasmussen, Timothy G. Robinson, Scot P. Sandoval
  • Patent number: 7544277
    Abstract: Sensors for the electro-chemical analysis of samples and methods for the manufacturing of sensors allow for more efficient manufacture and use of electro-chemical sensors. Flexible sheets, such as polycarbonate sheets, are used to easily manufacture sensor components, with sensor chemistry being applied to the sensor components at manufacture. Sensors may be manufactured with modular components, enabling easy production-line manufacture and construction of electro-chemical sensors with significant cost savings and increased efficiency over existing sensor styles and sensor manufacturing techniques.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: June 9, 2009
    Assignee: Bayer Healthcare, LLC
    Inventor: Frank W. Wogoman
  • Publication number: 20090127123
    Abstract: The invention relates to a microfluidic device for making a liquid/liquid or gas biphasic system using a first liquid or a gas and a second liquid, non-miscible with each other, the device having a first hydrophobic surface for the second liquid, the first liquid forming a layer (6) on said first hydrophobic surface. The device comprises means for introducing a drop (7) of the second liquid into the layer of first liquid or gas and in contact with said first hydrophobic surface, and means for displacing the drop on said first hydrophobic surface along a determined path, the device having on the path of the drop, at least one wetting defect causing, upon passing of the drop over this defect, failure of the triple line of contact of the drop on the first hydrophobic surface and inclusion of first liquid (8) or gas into the drop. The invention also relates to the associated method.
    Type: Application
    Filed: September 22, 2006
    Publication date: May 21, 2009
    Inventors: Olivier Raccurt, Yves Fouillet
  • Publication number: 20090107835
    Abstract: Embodiments of a closed-contact electroplating cup assembly that may be rapidly cleaned while an electroplating system is on-line are disclosed. One disclosed embodiment comprises a cup assembly and a cone assembly, wherein the cup assembly comprises a cup bottom comprising an opening, a seal surrounding the opening, an electrical contact structure comprising a plurality of electrical contacts disposed around the opening, and an interior cup side that is tapered inwardly in along an axial direction of the cup from a cup top toward the cup bottom.
    Type: Application
    Filed: October 31, 2007
    Publication date: April 30, 2009
    Inventors: Shantinath Ghongadi, Robert Rash, Jeff Hawkins, Seshasayee Varadarajan, Tariq Majid, Kousik Ganesan, Bryan Buckalew, Brian Evans
  • Patent number: 7520968
    Abstract: An apparatus and method for manufacturing and refurbishing a conductive polishing pad assembly for performing an electrochemical process on a substrate is disclosed. The conductive polishing pad assembly is formed using a contact surface as a foundation that is coated with a metallic coating to create a conductive contact surface. In one embodiment, the metallic coating is a high purity tin/zinc alloy that is sprayed on the contact surface. The contact surface contains abrasive particles while the metallic coating provides at least conductive qualities to the contact surface.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: April 21, 2009
    Assignee: Applied Materials, Inc.
    Inventors: Rashid A. Mavliev, Lakshmanan Karuppiah
  • Publication number: 20090075132
    Abstract: A reactor cover, and a hydrogen generating apparatus and a fuel cell power generation system having the reactor cover are disclosed. The reactor cover includes a base panel; a control unit, which is coupled to one side of the base panel, and which regulates a reaction for generating the hydrogen; a circuit pattern buried in the base panel in electrical connection with the control unit; and an electrode pad formed on the other side of the base panel in electrical connection with the circuit pattern. In the reactor cover, the base panel and the control unit may be integrated, to eliminate unnecessary wiring, prevent short-circuiting, and consequently provide a reactor cover that can be fabricated and used more easily.
    Type: Application
    Filed: April 7, 2008
    Publication date: March 19, 2009
    Inventors: Jae-Hyoung Gil, Jae-Hyuk Jang, Bo-Sung Ku, Kyoung-Soo Chae
  • Patent number: 7504009
    Abstract: The invention relates to a method for achieving a good contact surface on an aluminium electrode support bar used in electrolysis. In the method the support bar is fabricated as a continuous bar and a highly electroconductive layer is formed on its end. The highly electroconductive layer forms a metallic bond with the support bar and can be achieved for example with thermal spray coating. The invention also relates to an electrode support bar, the end of which is coated with a highly electroconductive material.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: March 17, 2009
    Assignee: Outotec Oyj
    Inventors: Karri Osara, Veikko Polvi
  • Publication number: 20090029206
    Abstract: One aspect of the invention provides an electrolyte solution for a hydrogen generating apparatus that includes water, at least one metal borohydride, at least one ionic compound, and at least one chelating agent, as well as a hydrogen generating apparatus that includes the electrolyte solution. With an electrolyte solution for a hydrogen generating apparatus based on an embodiment of the invention, it is possible to regulate the rate at which the hydrogen is generated and increase the amount and time of hydrogen generation.
    Type: Application
    Filed: July 25, 2008
    Publication date: January 29, 2009
    Inventors: Chang-Ryul Jung, Jae-Hyuk Jang, Bosung Ku, Kyoung-Soo Chae, Arunabha Kundu
  • Patent number: 7479209
    Abstract: Production of pure metals through electro-winning and electro-deposition is accomplished by electrolytic deposition of metal over a reusable stainless-steel plate (cathode). Metal is deposited on both faces of the cathode, as well as on its edges, creating problems when removing the deposited metal. Breaking the deposited edges to remove the metal deposited on both faces produces irregular edges, folding and damages to the surface of the cathode, requiring re-processing, increasing costs of the deposited metal, as well as repairs or replacement of the cathodes. This invention includes a structure made of insulating material to which are fixed electrically energizable cathode guidance profiles with a cross-section similar to an omega and which house the edges of the cathodes, holding them in position during the process.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: January 20, 2009
    Assignee: New Tech Copper S.A.
    Inventor: Manuel Rafael Umana Casanova
  • Publication number: 20080296173
    Abstract: An electrolysis transistor for providing high-density electrochemistry and products utilizing the same, and high-efficiency electrolysis and electrochemical processes is disclosed. The electrolysis transistor may comprise an electrolyte, one or more working electrodes for transferring charge to or from said electrolyte, and one or more gate structures for altering electrode over-voltage and modifying the barrier at the electrode-electrolyte interface, reducing the voltage necessary for electrolysis. An electrochemical or photo-electrochemical cell may incorporate one or more of these electrolysis transistors.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 4, 2008
    Inventors: Umesh Mishra, Rakesh Lai, Likun Shen, Lee McCarthy, Primit Parikh
  • Publication number: 20080277287
    Abstract: A device and system useful for highly efficient chemical and electrochemical reactions is described. The device comprises a preferably porous electrode and a plurality of suspended nanoparticles diffused within the void volume of the electrode when used within an electrolyte. The device is suitable within a system having a first and second chamber preferably positioned vertically or in other special arrangements with respect to each other, and each chamber containing an electrode and electrolyte with suspended nanoparticles therein. When reactive metal particles are diffused into the electrode structure and suspended in electrolyte by gasses, a fluidized bed is established. The reaction efficiency is increased and products can be produced at a higher rate. When an electrolysis device can be operated such that incoming reactants and outgoing products enter and exit from opposite faces of an electrode, reaction rate and efficiency are improved.
    Type: Application
    Filed: March 10, 2008
    Publication date: November 13, 2008
    Inventor: Robert Brian Dopp