Electrolytic Erosion Of A Workpiece For Shape Or Surface Change (e.g., Etching, Polishing, Etc.) (process And Electrolyte Composition) Patents (Class 205/640)
  • Publication number: 20130115510
    Abstract: A chargeable and dischargeable secondary battery for use in electronic devices, industrial machines, electric-powered vehicles, is provided, along with an anodic electrode and a copper foil for anode current collector. It is an anode for secondary battery that utilizes non-aqueous electrolyte, which comprises a silicon-type active material film formed on one side or both sides of a current collector made of copper foil or copper alloy foil, wherein 1 g/m2 to 14 g/m2 of silicon-type active material film is formed on said current collector, and the lightness Y value in a XYZ colorimetric system (CIE 1931 standard colorimetric system) for the surface of said anode, onto which said silicon-type active material film is formed, is 15 to 50, and the surface roughness (ten point average roughness) Rz specified by the Japanese Industrial Standards (JIS B0601-1994 ten point average roughness) is 1.0 ?m or more and 4.5 ?m or less.
    Type: Application
    Filed: December 28, 2012
    Publication date: May 9, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventor: FURUKAWA ELECTRIC CO., LTD.
  • Patent number: 8420502
    Abstract: A method for producing a Group III-V semiconductor device, includes forming, on a base, a plurality of semiconductor devices isolated from one another, forming, through ion implantation, a high-resistance region in a surface layer of a side surface of each semiconductor device, after formation of the high-resistance region, forming a p-electrode and a low-melting-point metal diffusion prevention layer on the top surface of the semiconductor device, bonding the semiconductor device to a conductive support substrate via a low-melting-point metal layer, and removing the base through the laser lift-off process.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: April 16, 2013
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Masanobu Ando, Shigemi Horiuchi, Yoshinori Kinoshita, Kazuyoshi Tomita
  • Patent number: 8409423
    Abstract: A method for machining workpieces provides a machining electrode, which is guided at a specific distance to the workpiece. An electrolyte is provided between the workpiece and the machining electrode, through which an operating current flows between the machining electrode and the workpiece. The operating current results from an operating voltage (UA), which is produced at the machining electrode, the workpiece being connected to ground. To perform the machining procedure, the distance between the machining electrode and the workpiece is regulated and the operating voltage (UA) is determined in such a way that the resulting operating current is a DC current or a pulsed DC current—i.e., the operating voltage is a DC voltage of fixed or specific dimension. A measuring voltage (UM) is superimposed on the operating voltage (UA) for producing the operating current.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: April 2, 2013
    Assignee: MTU Aero Engines GmbH
    Inventors: Erwin Bayer, Martin Bussmann, Thomas Kraenzler, Albin Platz, Juergen Steinwandel
  • Publication number: 20130075265
    Abstract: Methods for electrochemically processing microfeature wafers using at least one counter electrode in a vessel, a supplementary electrode and a supplementary virtual electrode. The supplementary electrode is configured to operate independently from the counter electrode in the vessel, and it can be a thief electrode and/or a de-plating electrode depending. The supplementary electrode can further be used as another counter electrode during a portion of a plating cycle or polishing cycle. The supplementary virtual electrode is located in the processing zone, and it is configured to counteract an electric field offset relative to the wafer associated with an offset between the wafer and the counter electrode.
    Type: Application
    Filed: November 20, 2012
    Publication date: March 28, 2013
    Applicant: APPLIED MATERIALS INC.
    Inventor: Applied Materials Inc.
  • Publication number: 20130053934
    Abstract: Biocompatible electrodes with smaller geometric area improve the selectivity of the neural recording and stimulation applications. A volume within the electrode back plane of a micro-reaction chamber (?RC) is used to confine and sequester an electrochemical reaction used for charge passage. The ?RC electrode decreases impedance and improves charge storage capacity without altering the geometry of the active site.
    Type: Application
    Filed: August 27, 2012
    Publication date: February 28, 2013
    Applicant: THE PENN STATE RESEARCH FOUNDATION
    Inventors: Bruce J. Gluckman, Balaji Shanmugasundaram
  • Publication number: 20130048504
    Abstract: Embodiments of the present invention include systems and methods for low-rate electrochemical (wet) etch that use a net cathodic current or potential. In particular, some embodiments achieve controlled etch rates of less than 0.1 nm/s by applying a small net cathodic current to a substrate as the substrate is submerged in an aqueous electrolyte. Depending on the embodiment, the aqueous electrolyte utilized may comprise the same type of cations as the material being etched from the substrate. Some embodiments are useful in etching thin film metals and alloys and fabrication of magnetic head transducer wafers.
    Type: Application
    Filed: August 30, 2011
    Publication date: February 28, 2013
    Applicant: Western Digital (Fremont), LLC
    Inventors: Jose A. Medina, Tiffany Yun Wen Jiang, Ming Jiang
  • Publication number: 20130043009
    Abstract: A component is provided and includes a substrate comprising an outer and an inner surface, where the inner surface defines at least one hollow, interior space. The component defines one or more grooves, where each groove extends at least partially along the outer surface of the substrate and has a base and a top. The base is wider than the top, such that each groove comprises a re-entrant shaped groove. One or more access holes are formed through the base of a respective groove, to connect the groove in fluid communication with the respective hollow interior space. Each access hole has an exit diameter D that exceeds the opening width d of the top of the respective groove. The diameter D is an effective diameter based on the area enclosed. The component further includes at least one coating disposed over at least a portion of the surface of the substrate, wherein the groove(s) and the coating together define one or more re-entrant shaped channels for cooling the component.
    Type: Application
    Filed: August 16, 2011
    Publication date: February 21, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ronald Scott Bunker, Eric Richard Bonini
  • Publication number: 20130043213
    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: Application
    Filed: February 18, 2011
    Publication date: February 21, 2013
    Inventors: Meiyong Liao, Yasuo Koide, Shunichi Hishida
  • Patent number: 8372212
    Abstract: According to one embodiment, a supercritical drying method comprises cleaning a semiconductor substrate with a chemical solution, rinsing the semiconductor substrate with pure water after the cleaning, changing a liquid covering a surface of the semiconductor substrate from the pure water to alcohol by supplying the alcohol to the surface after the rinsing, guiding the semiconductor substrate having the surface wetted with the alcohol into a chamber, discharging oxygen from the chamber by supplying an inert gas into the chamber, putting the alcohol into a supercritical state by increasing temperature in the chamber to a critical temperature of the alcohol or higher after the discharge of the oxygen, and discharging the alcohol from the chamber by lowering pressure in the chamber and changing the alcohol from the supercritical state to a gaseous state. The chamber contains SUS. An inner wall face of the chamber is subjected to electrolytic polishing.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: February 12, 2013
    Assignees: Kabushiki Kaisha Toshiba, Tokyo Electron Limited
    Inventors: Yohei Sato, Hisashi Okuchi, Hiroshi Tomita, Hidekazu Hayashi, Yukiko Kitajima, Takayuki Toshima, Mitsuaki Iwashita, Kazuyuki Mitsuoka, Gen You, Hiroki Ohno, Takehiko Orii
  • Patent number: 8361290
    Abstract: A coupling which is rotatable about a vertical axis of rotation and intended for the mounting of a workpiece support which can be loaded, for example, with incorrectly coated or worn workpieces is arranged in a removable holder above a tank filled with an electrolyte. Said workpiece support is connected via the coupling to a current supply device, to the opposite pole of which an opposite electrode is connected. A heating and cooling device and an ultrasound generator are also arranged in the tank. By current supply and simultaneous rotation, the coating is removed from the workpiece support and/or from the workpieces. After incorrect coating, the workpieces together with the workpiece support and in certain circumstances with the holder can be taken over directly from a coating installation and, after coating removal, transferred to such a coating installation for recoating.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: January 29, 2013
    Assignee: Oerlikon Trading, AG, Trubbach
    Inventors: Hanspeter Baertsch, Sven Egger, Manfred Wurzer, Torsten Reyher, Kerstin Lasch, Udo Rauch
  • Publication number: 20130020115
    Abstract: A method for etching a selected area of a conductive metal oxide layer deposited on a support is provided. The method comprises removing the area via electrochemical route in the presence of a polarized microelectrode and an electrochemical solution. In addition, an etched layer obtained with the foregoing method is provided.
    Type: Application
    Filed: March 25, 2011
    Publication date: January 24, 2013
    Applicant: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Romain Metaye, Federico Grisotto
  • Publication number: 20130018480
    Abstract: The invention relates to an implant with a basic body made of aluminum, a method of producing an implant and an device for producing an implant. The implant has a microstructure and a macrostructure. Through this the biochemical interaction between the implant and tissue is optimized with regard to degradation and ingrowth behavior.
    Type: Application
    Filed: July 10, 2012
    Publication date: January 17, 2013
    Applicant: Meotec GmbH & Co. KG
    Inventor: Alexander KOPP
  • Publication number: 20130011656
    Abstract: This invention relates to methods of generating NP gallium nitride (GaN) across large areas (>1 cm2) with controlled pore diameters, pore density, and porosity. Also disclosed are methods of generating novel optoelectronic devices based on porous GaN. Additionally a layer transfer scheme to separate and create free-standing crystalline GaN thin layers is disclosed that enables a new device manufacturing paradigm involving substrate recycling. Other disclosed embodiments of this invention relate to fabrication of GaN based nanocrystals and the use of NP GaN electrodes for electrolysis, water splitting, or photosynthetic process applications.
    Type: Application
    Filed: July 26, 2012
    Publication date: January 10, 2013
    Applicant: YALE UNIVERSITY
    Inventors: Yu Zhang, Qian Sun, Jung Han
  • Publication number: 20130004362
    Abstract: A process for producing a medical instrument, such as a stent and a guide wire, which has an excellent fatigue life; and a medical instrument, such as a stent and a guide wire, which has an excellent fatigue life. The process for producing a medical instrument includes: a preparation step of preparing a medical instrument including a NiTi-based alloy as a base material; and an ion irradiation step of irradiating the medical instrument prepared in the preparation step with Xe ions. The medical instrument is produced by irradiating a medical instrument including a NiTi-based alloy as a base material with Xe ions.
    Type: Application
    Filed: March 10, 2011
    Publication date: January 3, 2013
    Applicants: NAGATA SEIKI KABUSHIKI KAISHA, TERUMO KABUSHIKI KAISHA
    Inventors: Ryoichi Soba, Hiraku Murayama, Kensuke Uemura
  • Publication number: 20120308917
    Abstract: One aspect of the invention is a method of surface alloying stainless steel, In one embodiment, the method includes providing a stainless steel surface having an initial amount of iron and an initial amount of chromium; and preferentially removing iron from the stainless steel surface to obtain a surface having an amount of iron less than the initial amount of iron and an amount of chromium greater than the initial amount of chromium. Another aspect of the invention is a unitary stainless steel article.
    Type: Application
    Filed: June 6, 2011
    Publication date: December 6, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Mahmoud H. Abd Elhamid, Gayatri Vyas Dadheech
  • Patent number: 8323473
    Abstract: A method for monitoring machining in an electroerosion assembly having a power supply and an electrode arranged across a gap from a workpiece, includes measuring a voltage at a point in a voltage waveform after a time delay td of one half of a pulse width of the voltage waveform. The measurements are repeated for multiple pulses of the voltage waveform to obtain multiple voltages, each of the voltages corresponding to a point in respective pulses. The voltages are averaged to obtain an average voltage, which is compared with at least one threshold voltage, to determine whether the machining is in control. A control signal is generated if the comparison indicates that the process is not in control, the control signal being configured to regulate an operating parameter of the power supply, and the control signal is supplied to the power supply, if generated.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: December 4, 2012
    Assignee: General Electric Company
    Inventors: Yuanfeng Luo, Renwei Yuan, Kelvin Junwen Wang, Bin Wei, Michael Scott Lamphere
  • Patent number: 8323459
    Abstract: An electropolishing system including an anode, a cathode, a rolling block and a motion controller. The anode is configured to removably retain a metal device to be electropolished, and may be formed as a bar made from a solid cylindrical piece of metal or other configurations, such as wires with hooks. The anode transfers the electricity to the metal device while grooming the surface of the metal device as it contacts the rolling block. The cathode may be configured as a mesh and completes the electrical circuit. The rolling block is formed from a relatively smooth, solid material and positioned so as to allow the metal device to roll against the surface of the block. The motion controller is configured to provide vertical and horizontal movement of the anode and metal device, using force transducers to control the compression of the metal device against the rolling block.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: December 4, 2012
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Anthony S. Andreacchi, Andreina P. Gomez, Han Juanta, Jessie Madriaga, Dan Joel Dirilo
  • Patent number: 8317995
    Abstract: Disclosed herein is a highly-durable electrode tool for electrochemical machining, which can prevent the corrosion and abrasion of a conductive pattern at the time of electrochemical machining for forming dynamic pressure-generating grooves of a fluid dynamic bearing, and a method of manufacturing the same. The electrode tool for electrochemical machining includes: an electrode substrate on which a conductive pattern is formed to have protrusions corresponding to the fine grooves and to which negative current is applied; a nonconductive insulating layer, covering an entire top surface of the electrode substrate excluding the conductive pattern; and a conductive layer, which is formed on the conductive pattern to protect the conductive pattern, and a top surface of which is the same height as a top surface of the nonconductive insulating layer.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: November 27, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Young Tae Kim, Young Hwan Lim, Il Oung Park, Won Seok Choi, Jong Yun Kim
  • Patent number: 8313636
    Abstract: A method of manufacturing a metal housing (14) includes providing a first passage (10) through the metal housing (14) and providing a second passage (12) through the metal housing (14), wherein the second passage (12) includes a region of intersection (20) which intersects the first passage (10) to define an opening (22, 122, 222) into the first passage (10). The method further includes subjecting the metal housing (14) to a heat treatment process to carburise an internal surface of the first and/or second passage (10, 12) and, subsequent to the carburization process, applying a hard stage electrochemical machining process to the carburised internal surface of the first and/or second passage (10, 12) to improve surface finish. Another aspect of the invention includes providing a second passage (12) through the metal housing (14) by means of a tool (46), such as an electrochemical machining electrode, having an active region without rotational symmetry about its axis (Y-Y).
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: November 20, 2012
    Assignee: Delphi Technologies Holding S.arl
    Inventors: Jonathan D. Arnold, Raphael Rouillon, Carl Diver
  • Patent number: 8313635
    Abstract: Bare aluminum baffles are adapted for resist stripping chambers and include an outer aluminum oxide layer, which can be a native aluminum oxide layer or a layer formed by chemically treating a new or used bare aluminum baffle to form a thin outer aluminum oxide layer.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: November 20, 2012
    Assignee: Lam Research Corporation
    Inventors: Fred D. Egley, Michael S. Kang, Anthony L. Chen, Jack Kuo, Hong Shih, Duane Outka, Bruno Morel
  • Publication number: 20120255869
    Abstract: A system and method for electrochemically processing non-flat samples and/or samples that can change shape during the electrochemical processing is disclosed. In one aspect, a system includes a sample holder for providing an electrical contact to the sample during electrochemical processing. The sample holder has a carrying element and a fixing element for clamping of the sample in between the fixing element and the carrying element, thus providing electrical contact to the sample while allowing the sample to change shape without interrupting the electrical contact.
    Type: Application
    Filed: February 29, 2012
    Publication date: October 11, 2012
    Applicants: Katholieke Universiteit Leuven, IMEC
    Inventors: Alex Masolin, Frédéric Dross
  • Patent number: 8273238
    Abstract: The invention relates to a tool for the electrochemical machining of a fuel injection device, the tool having an electrode holder and an electrode element which forms a cathode during the machining operation in order to be able to electrochemically remove material from the fuel injection device in a machining region. The electrode element is arranged in such a way that it can be displaced in relation to the electrode holder.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: September 25, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Christian Ziegler, Steffen Beetz, Rudolf Scherer, Stefan Moser
  • Patent number: 8268154
    Abstract: Methods and apparatus are provided for planar metal plating on a workpiece having a surface with recessed regions and exposed surface regions; comprising the steps of: causing a plating accelerator to become attached to said surface including the recessed and exposed surface regions; selectively removing the plating accelerator from the exposed surface regions without performing substantial metal plating on the surface; and after removal of plating accelerator is at least partially complete, plating metal onto the surface, whereby the plating accelerator remaining attached to the surface increases the rate of metal plating in the recessed regions relative to the rate of metal plating in the exposed surface regions.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: September 18, 2012
    Assignee: Novellus Systems, Inc.
    Inventors: Steven T. Mayer, John S. Drewery, Richard S. Hill, Timothy M. Archer, Avishai Kepten
  • Publication number: 20120228153
    Abstract: A device, apparatus, and method for abrasive electrochemical finishing of an arc flange leaf pack are presented. The device includes: a concave support block having holes to receive securing members; removable first and second end blocks configured to seat at opposite ends of the concave support block; removable first and second face plates attached to opposite sides of the concave support block via the securing members; and a region of space between the removable first and second face plates, the removable first and second end blocks, and the concave support block.
    Type: Application
    Filed: March 10, 2011
    Publication date: September 13, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Yuefeng Luo, William Edward Adis, Hrishikesh Vishvas Deo
  • Patent number: 8236159
    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: April 28, 2006
    Date of Patent: August 7, 2012
    Assignee: Applied Materials Inc.
    Inventors: Rajesh Baskaran, Robert W. Batz, Jr., Bioh Kim, Tom L. Ritzdorf, John L. Klocke, Kyle M. Hanson
  • Patent number: 8235769
    Abstract: To provide an electron beam assisted EEM method that can realize ultraprecision machining of workpieces, including glass ceramic materials, in which at least two component materials different from each other in machining speed in a machining process are present in a refined mixed state and the surface state is not even, to a surface roughness of 0.2 to 0.05 nm RMS. The EEM method comprises a working process in which a workpiece and chemically reactive fine particles are allowed to flow along the working face to remove atoms on the working face chemically bonded to the fine particles together with the fine particles through chemical interaction between the fine particles and the working face interface. The workpiece comprises at least two component materials present in a refined mixed state and different from each other in machining speed in the machining process.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: August 7, 2012
    Assignees: JTEC Corporation
    Inventor: Yuzo Mori
  • Publication number: 20120189775
    Abstract: Method for the production of indexable inserts, which exhibits the following: Deposition of a layer of cutting tip material forming the indexable inserts (40) by means of a PVD method on a dissolvable profiled substrate (10), and—dissolving of the substrate to produce the form of free-standing parts as indexable inserts.
    Type: Application
    Filed: July 14, 2010
    Publication date: July 26, 2012
    Applicant: MSM Krystall GBR
    Inventors: Arno Mecklenburg, Rainer Schneider, Rainer Michaelsen
  • Publication number: 20120175260
    Abstract: A device for simultaneous coating of a plurality of workpieces is described, the plurality of workpieces being situated in a shared flow shaft through which an electrolyte flows, and each workpiece being connected electrically conducting to at least one component electrode and being electrically insulated in relation to at least one bath electrode, and a plurality of flow channels and a flow distributor for distributing the electrolyte stream to the plurality of flow channels further being situated in the flow shaft, the at least one bath electrode being situated in one of the flow channels.
    Type: Application
    Filed: May 11, 2010
    Publication date: July 12, 2012
    Inventors: Rolf Keller, Harald Bauer, Michael Lingner
  • Publication number: 20120145371
    Abstract: A component is disclosed. The component includes a substrate comprising an outer surface and an inner surface. The inner surface defines at least one hollow, interior space, and the outer surface defines one or more grooves that extend at least partially along the outer substrate surface and have a respective base. One or more access holes are formed through the base of a respective groove, to connect the groove in fluid communication with the respective hollow interior space. The component further includes a coating comprising one or more layers disposed over at least a portion of the outer substrate surface. The groove(s) and the coating together define one or more channels for cooling the component. One or more trenches are formed through one or more coating layers and at least partially define at least one exit region for the cooling channel(s). A method of fabricating a component is also provided.
    Type: Application
    Filed: December 10, 2010
    Publication date: June 14, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ronald Scott Bunker, Todd Garrett Wetzel
  • Publication number: 20120138480
    Abstract: The invention relates to a method for electrochemical processing of at least one workpiece, comprising at least the following steps: a) setting a first flow density during a first phase in an electrolyte, b) retaining the first flow density during a second phase following the first phase, c) increasing the first flow density during a third phase following the second phase to a second flow density at least 30% greater than the first flow density, and d) reducing the second flow density during a fourth phase following the third phase within a maximum of 100 microseconds to a maximum of 1% of the second flow density.
    Type: Application
    Filed: August 2, 2010
    Publication date: June 7, 2012
    Applicant: KENNAMETAL INC.
    Inventors: Patrick Matt, Michael Riester, Johannes Schreiner
  • Publication number: 20120141819
    Abstract: A porous silicon article includes a substrate; a silicon metal layer formed on the substrate; and about a porous silicon layer formed on the silicon metal layer. The silicon metal layer is a silicon layer doped with M that is at least one element selected from a group consisting of aluminum, magnesium and about calcium, the content of M in the silicon metal layer is between about 30 wt % and about 50 wt %.
    Type: Application
    Filed: August 25, 2011
    Publication date: June 7, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD
    Inventors: HSIN-PEI CHANG, WEN-RONG CHEN, HUANN-WU CHIANG, CHENG-SHI CHEN, SHUN-MAO LIN
  • Publication number: 20120138481
    Abstract: The invention relates to an aluminium alloy lithographic sheet product having an enhanced electrolytic graining response in which Zn between 0.5 and 2.5 wt % is added to an aluminium 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: Application
    Filed: March 22, 2010
    Publication date: June 7, 2012
    Inventors: Andrew Coleman, David S. Wright, Nicolas Kamp, Jeremy Mark Brown
  • Patent number: 8187451
    Abstract: A method for manufacturing integrally bladed rotors (preferably gas turbine rotors) is provided. The method includes the steps of a) providing a basic rotor body; b) placing the basic rotor body into an electrolyte; c) electrochemically machining the basic rotor body by simultaneously manufacturing a plurality of unmachined blades; and d) subsequently machining the unmachined blades to provide hydrodynamic surfaces, in particular a suction side and a pressure side, in the area of each unmachined blade.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: May 29, 2012
    Assignee: MTU Aero Engines GmbH
    Inventors: Erwin Bayer, Martin Bussmann, Thomas Kraenzler, Albin Platz, Juergen Steinwandel
  • Publication number: 20120129002
    Abstract: An aluminum article includes a substrate comprising a surface having a plurality of nano-pores defined therein; and a transparent vacuum deposition layer deposited on the surface and filling the nano-pores.
    Type: Application
    Filed: June 21, 2011
    Publication date: May 24, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD
    Inventors: HSIN-PEI CHANG, WEN-RONG CHEN, HUANN-WU CHIANG, CHENG-SHI CHEN, HUA-YANG XU
  • Publication number: 20120103821
    Abstract: Nanofluidic passages such as nanochannels and nanopores are closed or opened in a controlled manner through the use of a feedback system. An oxide layer is grown or removed within a passage in the presence of an electrolyte until the passage reaches selected dimensions or is closed. The change in dimensions of the nanofluidic passage is measured during fabrication. The ionic current level through the passage can be used to determine passage dimensions. Fluid flow through an array of fluidic elements can be controlled by selective oxidation of fluidic passages between elements.
    Type: Application
    Filed: February 4, 2011
    Publication date: May 3, 2012
    Applicant: International Business Machines Corporation
    Inventors: Stefan Harrer, Stephen M. Rossnagel, Philip S. Waggoner
  • Publication number: 20120096774
    Abstract: The present invention relates to an abrasive product and to a method of manufacturing same. Such an abrasive product comprises a structured abrasive coating provided on an upper side (6) comprised by the abrasive product. Herein, abrasive grains (8) and glue (7) are molded on a backing such that the upper side of the abrasive product is provided with a three-dimensional product-specific pattern. This pattern is created by said abrasive grains and glue, which constitute an individual composite grain (9). In generating the pattern, a special computer program is utilized in a computer program product for placing said composite grains randomly over the upper side of the abrasive product. The invention also relates to a casting mould with which the thus obtained pattern may be transferred onto the upper side of the abrasive product. The invention further comprises an arrangement for manufacturing said casting mould.
    Type: Application
    Filed: December 27, 2011
    Publication date: April 26, 2012
    Applicant: Oy KWH Mirka Ab
    Inventors: Göran Johannes HÖGLUND, Caj Erik Mikeel NORDSTRÖM
  • Publication number: 20120094114
    Abstract: A metal foil comprising an electric resistance film in which the metal foil is made of copper or copper alloy, the surface roughness of at least one surface thereof is set to a 10-point average roughness Rz of 6.0 ?m to 8.0 ?m, and an electric resistance film is formed on that surface, wherein the peel strength of the electric resistance film is 0.60 kN/m or more, and variation of the resistance value of the electric resistance film is ±10% or less. Provided is a copper foil with an electric resistance film in which an electric resistance film is formed on the copper foil to enable the resistor to be built into the substrate, the adhesiveness thereof to a resin substrate is ensured, and variation of the resistance value of the electric resistance film is reduced.
    Type: Application
    Filed: March 10, 2010
    Publication date: April 19, 2012
    Applicant: JX NIPPON MINING & METALS CORPORATION
    Inventor: Toshio Kurosawa
  • Publication number: 20120082906
    Abstract: The present invention relates to A process for producing a transport- and storage-stable sheet-like oxygen-consuming electrode comprising providing an electrically conductive support, a gas diffusion layer, and a layer comprising a silver-based catalyst; coating the support with a silver oxide-containing intermediate; and at least partly electrochemically reducing the silver oxide-containing intermediate in an aqueous electrolyte at a pH of less than 8.
    Type: Application
    Filed: October 3, 2011
    Publication date: April 5, 2012
    Applicant: Bayer MaterialScience AG
    Inventors: Andreas Bulan, Rainer Weber, Matthias Weis
  • Publication number: 20120080321
    Abstract: A display device comprises a first insulating substrate (10) carrying on one surface thereof a first electrically conductive material (12) constituting a first electrode; a second electrically conductive material (16) constituting a second electrode disposed in opposed relation to the first electrically conductive material and spaced therefrom; and an electrolyte providing a conductive pathway between the first and second electrically conductive materials. In use of the device, a potential difference is applied between the first and second electrically conductive materials, causing the first material to be fully removed from the first substrate selectively in one or more regions where the first and second materials are directly opposed, thus forming a detectable image. Because the first material has been fully removed from one or more regions of the first substrate, and because the first substrate is not electrically conductive, the process is not reversible and so results in a fixed display.
    Type: Application
    Filed: June 4, 2010
    Publication date: April 5, 2012
    Inventors: David Stephen Thomas, Philip Gareth Bentley
  • Publication number: 20120077057
    Abstract: A system and method for fabricating a blanket metallic nanoporous film positioned a substrate in an electrochemical cell using a galvanostatic dealloying method where areal current density is directly controlled and the process is terminated when the potential reaches a predetermined cut-off value. A blanket metallic nanoporous film attached to a substrate that is substantially crack free, has a bicontinuous porous structure with the interconnecting ligaments having a length scale from 10 nm to 30 nm, and has a continuous interconnected porous region having a length scale from 10 nm to 30 nm.
    Type: Application
    Filed: September 27, 2011
    Publication date: March 29, 2012
    Inventors: Jeffrey W. Kysar, Oya Okman
  • Publication number: 20120061244
    Abstract: An electric contact in the outer edge thereof, is used for electroplating substrates, e.g. as a wafer in a cup plater. In order to obtain an even electroplating result, at least two electrolytic partial cells are formed which are supplied with current by respective electroplating current sources (9?) and (9?) that can be individually adjusted. The partial cathode (12?) and the associated partial anode (7?) are supplied in the region of the diametrically remote partial cathode (12?). Conversely, the partial cathode (12?) is supplied via the base layer of the partial cathode (12?). The required levelling of the layer thickness distribution is inter alia carried out by alternate different adjustments of the quantity of the electroplating current of the two partial cells and by the electrodes (7,12) that rotate relative to each other.
    Type: Application
    Filed: May 18, 2010
    Publication date: March 15, 2012
    Applicant: SOMONT GMBH
    Inventor: Egon Engmark Hübel
  • Publication number: 20120061245
    Abstract: A method and a device for electroplating and electrolytically etching plate-shaped or strip-shaped material in continuous installations or bath installations having rotating transport and contact structures along the conveyor belt. The current is fed to the material in the center, i.e. in the useful zone, thereby obtaining a layer thickness distribution which is at least as good as when the current is supplied from both edges. The invention further allows material of any formats of width and different contours to be electrolytically treated in any order.
    Type: Application
    Filed: May 18, 2010
    Publication date: March 15, 2012
    Applicant: RENA GMBH
    Inventor: Egon Huebel
  • Publication number: 20120053679
    Abstract: An implant and method for producing an implant, in particular an intraluminal endoprosthesis, with a body, wherein the body contains iron or an iron alloy, comprising the following steps: a) providing the implant body (1), b) applying a metallic coating comprising as main constituent at least one element of the group containing tantalum, niobium, zirconium, aluminum, magnesium, vanadium, molybdenum, hafnium, and wolfram onto at least a portion of the body surface, and c) plasmachemical treatment of the portion of the body surface provided with the coating in an aqueous solution for producing a plasmachemically generated layer (3, 5, 7) by means of applying a plasma-generating pulsating voltage to the body of the implant, wherein the pulsating voltage has sufficient energy that the metallic coating (3, 5, 7) is temporarily and sectionally ionized up to the underlying implant body (1) in such a manner that the generated layer has pores (5) which extend at least partially up to the implant body.
    Type: Application
    Filed: August 26, 2011
    Publication date: March 1, 2012
    Applicant: BIOTRONIK AG
    Inventors: Horst Fircho, Ullrich Bayer, Frank Endres
  • Patent number: 8123926
    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 an anion permeable barrier layer. The anion permeable barrier layer separates the first processing fluid from the second processing fluid while allowing certain anionic species to transfer between the two fluids. The described processes produce deposits over repeated plating cycles that exhibit resistivity values within desired ranges.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: February 28, 2012
    Assignee: Applied Materials, Inc.
    Inventors: Rajesh Baskaran, Robert W Batz, Jr., Bioh Kim, Tom L Ritzdorf, John L Klocke, Kyle M Hanson
  • Publication number: 20120043217
    Abstract: An electroplating/etch apparatus including a fluid jet and a dryer present over the tank containing the electrolyte for the electroplating/etch process. The fluid jet and the dryer remove excess liquids, such as electrolyte, from the component being plated or etched, e.g., working electrode. The working electrode is present on a holder that traverses from a first position within the tank during a plating or etch operation to a second position that is outside the containing the plating electrolyte. The fluid jet rinses the working electrode when the holder is in the second position, and the forced air dryer blows any remaining fluid from the fluid jet and the electrolyte from the working electrode into the tank.
    Type: Application
    Filed: August 19, 2010
    Publication date: February 23, 2012
    Applicant: International Business Machines Corporation
    Inventors: Charles L. Arvin, Raschid J. Bezama, Hariklia Deligianni
  • Publication number: 20120043222
    Abstract: A coating method for forming a pattern on a workpiece includes: providing a workpiece constituting a surface; forming a coating layer over the surface using a physical vapor deposition method; providing a mask including a through hole having a shape conforming to a predetermined pattern; attaching the mask to the surface such that a portion of the coating layer is exposed through the through hole, the coating layer consisting of the exposed portion and an unwanted portion surrounding the exposed portion; forming a shielding layer on the exposed portion of the coating layer in the through hole; removing the mask; removing the unwanted portion of the coating layer; and removing the shielding layer to obtain the exposed portion having the predetermined pattern.
    Type: Application
    Filed: December 22, 2010
    Publication date: February 23, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: CHUNG-PEI WANG
  • Patent number: 8110088
    Abstract: The present invention relates to a method for manufacturing an implant, in particular an intraluminal endoprosthesis, with a body containing metallic material, preferably iron. To control the degradation of the implant, the method comprises the following steps: a) preparing the body of the implant, and b) incorporating hydrogen into at least a portion of the structure of the implant body near the surface. Furthermore, such an implant is described.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: February 7, 2012
    Assignee: BIOTRONIK VI Patent AG
    Inventors: Ullrich Bayer, Baerbel Becher, Bernd Block, Robert Voegele, Patricia Decker
  • Patent number: 8101060
    Abstract: Methods and apparatuses for removing material from a microfeature workpiece are disclosed. In one embodiment, the microfeature workpiece is contacted with a polishing surface of a polishing medium, and is placed in electrical communication with first and second electrodes, at least one of which is spaced apart from the workpiece. A polishing liquid is disposed between the polishing surface and the workpiece and at least one of the workpiece and the polishing surface is moved relative to the other. Material is removed from the microfeature workpiece and at least a portion of the polishing liquid is passed through at least one recess in the polishing surface so that a gap in the polishing liquid is located between the microfeature workpiece and the surface of the recess facing toward the microfeature workpiece.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: January 24, 2012
    Assignee: Round Rock Research, LLC
    Inventor: Whonchee Lee
  • Publication number: 20120014629
    Abstract: There is provided a porous hydrodynamic bearing including a sleeve supporting a shaft, wherein the sleeve is formed of a sintered body containing at least one metal powder selected from a group consisting of SUS 304, SUS 430, and iron (Fe). In the sleeve formed of the sintered body containing at least one metal powder selected from the group consisting of SUS 304, SUS 430, and iron (Fe), surface pores and inner pores are not in communication with each other, whereby a leakage phenomenon of dynamic pressure may be reduced, as compared to a sleeve made of an alloy of Cu and Fe in which opened pores are formed.
    Type: Application
    Filed: July 15, 2011
    Publication date: January 19, 2012
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD
    Inventors: Young Tae Kim, Ta Kyoung Lee
  • Publication number: 20110287223
    Abstract: Articles containing fine-grained and/or amorphous metallic coatings/layers on at least part of their exposed surfaces are imprinted with surface structures to raise the contact angle for water in the imprinted areas at room temperature by equal to or greater than 10°, when compared to the flat and smooth metallic material surface of the same composition.
    Type: Application
    Filed: May 24, 2010
    Publication date: November 24, 2011
    Applicant: INTEGRAN TECHNOLOGIES INC.
    Inventors: Jared J. Victor, Uwe Erb, Klaus Tomantschger, Nandakumar Nagarajan, Diana Facchini