Class / Patent application number | Description | Number of patent applications / Date published |
205641000 | With control responsive to sensed condition | 20 |
20090078583 | Electrochemical mechanical polishing method and electrochemical mechanical polishing apparatus - A composite electrolytic processing method makes it possible to remove a conductive film without leaving it in an electrically-insulated state on an underlying barrier film, thereby exposing the barrier film. The electrochemical mechanical polishing method includes: applying a voltage between a first electrode connected to one pole of a power source and a second electrode, connected to the other pole of the power source, for feeding electricity to a conductive film of a polishing object; filling an electrolytic liquid into a space between the first electrode and the conductive film of the polishing object; and pressing and rubbing the conductive film against a polishing surface of a polishing pad to polish the conductive film in such a manner that a barrier film underlying the conductive film becomes gradually exposed from the center toward the periphery of the polishing object. | 03-26-2009 |
20090127131 | Scale Making Method - Apparatus and method for making a metrological scale by electrochemical machining of a scale substrate using a tool having at least one feature. The method has the steps of passing an electrolyte solution between the tool and the scale substrate and forming an electrical connection between the scale substrate and the tool. Electrochemical dissolution of the scale substrate occurs adjacent to the feature of the tool to produce at least one scale marking. This is suitable for making linear, rotary and two dimensional scales. | 05-21-2009 |
20100065437 | METHOD FOR SETTING A DISTANCE BETWEEN AN ELECTRODE AND A WORKPIECE - In a method for setting the distance between an electrode and a workpiece in electrochemical metal working, the electrode is moved by an oscillating drive system, in which an acceleration signal of the oscillating drive system is picked up, the acceleration signal is divided into individual sections, characteristic magnitudes of the individual sections of the acceleration signal are determined, the characteristic magnitudes of the individual sections are compared to one another and the distance of the electrode from the workpiece is adjusted in response to a deviation of the characteristic magnitudes from the specified values. A device for carrying out the method includes an electrode, that is connected to a drive axis, an oscillating motion being able to be transferred to the electrode via the drive axis. A sensor is situated on the drive axis which picks up acceleration signals. | 03-18-2010 |
20100224504 | ELECTRO-THINNING APPARATUS FOR REMOVING EXCESS METAL FROM SURFACE METAL LAYER OF SUBSTRATE AND REMOVING METHOD USING THE SAME - An electro-thinning apparatus for removing excess metal from the surface metal layer of the substrate is provided. The apparatus includes an electrolysis bath, a transportation system, an anode roller, a cathode roller, and at least one shielding plate. The electrolysis bath contains an electrolysis liquid. The transportation system is disposed in the electrolysis bath for moving a substrate from an upstream end to a downstream end. The anode roller is disposed relative to the electrolysis bath and located upstream to the transportation system. The cathode roller is located above the transportation system and located downstream to the anode roller. The at least one shielding plate is located downstream to the cathode roller. During electrolysis, the anode roller contacts a surface metal layer of the substrate while the cathode roller is partly immersed in the electrolysis liquid and away from the surface metal layer of the substrate during electrolysis. | 09-09-2010 |
20100236940 | X-Ray Assisted Etching of Insulators - The invention is a method of electrochemical etching of a non-conductive insulator. The method entails inducing a current in the insulator by exciting electrons into the conduction band by supplying the needed energy through irradiation of the insulator. Alternatively, electrons may be supplied externally from an electron gun. The insulator is subject to an electrical bias, and the induced or supplied electrons then create a current in the insulator that effects the etch rated. | 09-23-2010 |
20100243470 | PLASMA TREATMENT APPARATUS AND PLASMA TREATMENT METHOD - According to the plasma treatment on an object accommodated in the processing room, the plasma treatment is carried out as follows. The discharge detecting sensor detects a signal of potential change caused with change in plasma discharge. Receiving the signal, the signal recording section temporarily records the signal as signal data indicating potential change. Referencing the signal data, the signal analysis section extracts index data. The index data shows a condition of plasma discharge, for example, as a count value for discharge-start waves, a count value for abnormal discharge, a count value for feeble arc discharge. The device control section judges a condition of plasma discharge by monitoring the index data and carries out the retry process, the accumulative plasma process, and the maintenance judgment process for performing plasma treatment operations properly. | 09-30-2010 |
20110290662 | Method and Device for Electrochemical Machining - The present invention relates to a device and a method for the electrochemical machining of at least one workpiece with a conductor and first storing element for an electrolyte, wherein at least one measuring unit for measuring at least one property of the electrolyte is arranged on the conductor. | 12-01-2011 |
20110308966 | METHOD FOR MANUFACTURING BLISKS - A method for manufacturing a blisk for a gas turbine, in particular an aircraft gas turbine, includes generating blade profiles from an outer contour of a forged disk by milling and/or electrochemical machining. A robot-controlled, mechanical rework is performed of blade areas, in areas of the leading and trailing edges, the annulus, the fillet, the platform and the blade tip. A specified contour according to the engineering drawing of the blisk blade areas is referenced and an actual contour is determined by visualization. A difference between the specified contour and the actual contour is then calculated. The blade areas are then finish-machined and polished in a special processing machine according to a program prepared on the basis of the calculated difference. | 12-22-2011 |
20130248378 | ELECTRODE FOR ELECTROCHEMICAL MEASUREMENT, ELECTROLYSIS CELL FOR ELECTROCHEMICAL MEASUREMENT, ANALYZER FOR ELECTROCHEMICAL MEASUREMENT, AND METHODS FOR PRODUCING SAME - Provided are an electrode, an electrolysis cell, and an electrochemical analyzer that improve the long-term stability of analysis data. A working electrode, a counter electrode, and reference electrode are disposed in an electrolysis cell. The working electrode is obtained by forming a lead wire in a composite material having platinum or a platinum alloy as a base material, in which a metal oxide is dispersed, or in a laminated material obtained by laminating a valve metal and platinum such that the cross sectional crystal texture in the thickness direction of the platinum is formed in layers and the thickness of each layer of the platinum is 5 micrometers or less. The metal oxide is selected from among zirconium oxide, tantalum oxide, and niobium oxide, and the metal oxide content of the platinum or the platinum alloy is 0.005 to 1 wt % in terms of the zirconium, tantalum, or niobium metal. | 09-26-2013 |
20150041330 | METHOD OF REMOVING A METAL DETAIL FROM A SUBSTRATE - 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. | 02-12-2015 |
205642000 | To adjust voltage across or size of tool-workpiece gap | 4 |
20150114844 | IDENTIFYING AND REGULATING THE STARTING BEHAVIOR DURING ELECTROCHEMICAL MACHINING OF WORKPIECES - Disclosed is a method for the electrochemical machining of a workpiece, in which at least one electrode is situated adjacent to a surface to be machined and current pulses are generated in pulsed operation to ablate material from the workpiece. Before and/or at the beginning and/or during the electrochemical ablation, data of the current pulses are registered and analyzed to identify a starting phase or a transient phase comparable to a starting phase and/or to regulate the spacing of the electrode to the surface to be machined and/or the current flow during a starting phase or a transient phase comparable to a starting phase. | 04-30-2015 |
20160031026 | METHOD AND APPARATUS FOR PULSED ELECTROCHEMICAL GRINDING - A method and apparatus for electromechanical grinding is provided. An pulsed alternating waveform is applied between an anodic workpiece and cathodic grinding wheel to physically remove and electrochemically remove material from the anodic workpiece. | 02-04-2016 |
205643000 | In response to sensed voltage | 2 |
20150083608 | ELECTROLYTIC MACHINING SYSTEM AND ELECTROLYTIC MACHINING METHOD - An electrolytic machining system includes a controller, a drive member coupled to the controller, a power supply, a diving circuit, a detecting circuit, and an electrode module. The diving circuit is coupled to the power supply module and configured to divide a total voltage taken from the power supply module into a plurality of independent working voltages. The detecting circuit is coupled to the dividing circuit and the electrode assembly. The detecting circuit detects each independent working voltage and feeds back information as to the level of the independent working voltage to the controller as the electrode assembly is moved towards a workpiece. When the detection indicates an incorrect working voltage, the controller controls the drive member to move the electrode assembly away from the workpiece. | 03-26-2015 |
20160001386 | Electrochemical Machining Process - Electrochemical machining method and apparatus wherein in one aspect of the invention, the machining voltage is selected to maintain the highest current without initiating substantial hydrolysis of the electrolyte flushed between the work piece anode and tool cathode. In another aspect of the invention, the Low Machining Potential Voltage (LPMV) and High Machining Potential Voltage (HMPV) for a particular work piece material are identified and the work piece is machined using a voltage at or between the LMPV and HMPV. In yet another aspect of the invention, direct perturbation of the Beta Insulating Layer (BIL) is carried out in an optimally small (between about near zero to about 10μ) inter-electrode gap (IEG) with constant and simultaneous pulling in and pushing out of the electrolyte through the IEG. | 01-07-2016 |
205644000 | In response to sensed voltage or current | 6 |
20130092554 | ELECTROPOLISHING SOLUTION CONTAINING PHOSPHOROUS PENTOXIDE AND METHODS OF USE THEREOF - Substantially anhydrous electropolishing electrolyte solutions. The substantially anhydrous electropolishing electrolyte solutions described herein do not use water as a solvent; instead, such electropolishing electrolyte solutions use anhydrous alcohols and/or glycols as a solvent. For example, an electropolishing electrolyte solution, as described herein, may include an alcohol, at least one mineral acid, and phosphorous pentoxide (“P | 04-18-2013 |
20130341205 | MANUFACTURING METHOD FOR ALL- SOLID LITHIUM SECONDARY BATTERY, AND INSPECTION METHOD FOR ALL-SOLID LITHIUM SECONDARY BATTERY - A method for manufacturing an all solid-state lithium-ion rechargeable battery includes forming a first active material layer on a base, forming a solid electrolyte layer connected to the first active material layer, forming a second active material layer connected to the solid electrolyte layer, and repairing a short-circuit defect produced between the first active material layer and the second active material layer by supplying a repair current between the first active material layer and the second active material layer. | 12-26-2013 |
20140238873 | MODIFIED BUBBLING TRANSFER METHOD FOR GRAPHENE DELAMINATION - In the BB transfer, or so called electrochemical delamination process, a transfer film is firstly spray-coated on a stack formed by two graphene sandwiching a metal (Cu or Cr) foil as a protection layer. Then, direct current (dc) voltage is applied to the first stack as a cathode and an anode (from be a platinum wire, a carbon rod, or others) in an electrolyte aqueous solution. With application of the electrolysis potential, hydrogen bubbles appear at the graphene/metal foil interfaces, while oxygen bubble appear at the anode due to the reduction of water. These H | 08-28-2014 |
20140311918 | MULTI-STEP ELECTROCHEMICAL STRIPPING METHOD - A multi-step electrochemical stripping method includes providing a determined electrode potential between a reference electrode and an article submerged in an electrolyte; recording a current peak value of a current signal flowing through the article; removing the voltage provided to the article when the current signal falls to a determined first current value after passing the current peak value; refreshing the electrolyte; providing the determined electrode potential again for a determined time and determining whether the current signal is less than a determined second current value during the determined time, if not, goes back to the refreshing step; and if yes, the process ends. | 10-23-2014 |
20150108008 | FABRICATION OF NANOPORES USING HIGH ELECTRIC FIELDS - 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. | 04-23-2015 |
20160101479 | METHODS FOR THE ELECTROEROSION MACHINING OF HIGH-PERFORMANCE METAL ALLOYS - A method of machining a work-piece formed of titanium-based material, using a machining apparatus, is described. The method includes the steps of providing an electrically-conductive electrode contained within a spindle assembly, in a pre-selected distance and position relative to the titanium-based work-piece; while electrically powering the electrode and the work-piece with a power supply. In the process, fluid electrolyte is circulated through at least two pathways in the machining apparatus—an internal conduit within the spindle assembly; and an external conduit. The charged electrode is moved relative to the work-piece in a plunging motion, to remove material from the work-piece at a relatively high rate, using a high-speed electro-erosion (HSEE) process. | 04-14-2016 |