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| Number | Title | Issue Date |
| 7871503 | Electrochemical discharge machining device An electrochemical discharge machining device includes a base, a sensor disposed on the base, a shaft rotatably disposed on the base, an electrode disposed at one end of the shaft and contacting with a work piece, an isolating element disposed between the sensor and... | 01/18/2011 |
| 7540946 | Plating apparatus A plating apparatus for plating a substrate comprises a power supply for generating a voltage between a pair of terminals; an anode connected to one terminal of the power supply; a main cathode connected to the other terminal of the power supply while in contact wit... | 06/02/2009 |
| 7445696 | Monitoring electrolytic cell currents For an electrolytic cell, an apparatus and method are described that use one or more sensors to measure magnetic field strength about a conductor carrying electrical current. A processor is in electrical communication with the sensors and determines a compensated ma... | 11/04/2008 |
| 7425250 | Electrochemical mechanical processing apparatus A system for electrochemical mechanical polishing of a conductive surface of a wafer is provided. The system includes a wafer holder to hold the wafer and a belt pad disposed proximate to the wafer to polish the conductive surface. Application of a potential differe... | 09/16/2008 |
| 7223323 | Multi-chemistry plating system Embodiments of the invention generally provide an electrochemical plating system. The plating system includes a substrate loading station positioned in communication with a mainframe processing platform, at least one substrate plating cell positioned on the mainfram... | 05/29/2007 |
| 6761806 | Processing apparatus with sensory subsystem for detecting the presence/absence of wafers or other workpieces A semiconductor processing workpiece support which includes a detection subsystem that detects whether a wafer or other workpiece is present. The preferred arrangement uses an optical beam emitter and an optical beam detector mounted along the back side of a rotor w... | 07/13/2004 |
| 6428681 | System and method for reversing electrolyte flow during an electropolishing operation A pipe electrochemical polishing system (10, 10a) for in place polishing of a pipe (28(has provision for detecting the instant position of a cathode (14) within the pipe (28) such as cable marks (52) and cable mark sensor (50), an infrared camera (60), he... | 08/06/2002 |
| 6071399 | Electrolytic cell An electrolytic cell comprises a housing (12), means (21) defining a liquid level (25) in said housing (12), a first contact surface (32) positioned above said liquid level (25) for making contact with a removable electrode (20) when positioned in said ho... | 06/06/2000 |
| 5885434 | Method and apparatus for performing fine working A method for performing fine working of a material by electrochemical reaction comprises a two-step scanning operation in which a surface topography of the material is obtained during a first scan which is used to control the position of a probe during a ... | 03/23/1999 |
| 5286355 | Electrochemical wire sharpening device and method for the fabrication of tips The invention is a process for making sharp tips. A computer controlled instrument and process characterizes the tip while in formation and reliably produces tips having a radius of curvature of approximately 100 nm. In the invention, the position of the ... | 02/15/1994 |
| 5066370 | Apparatus, electrochemical process, and electrolyte for microfinishing stainless steel print bands An apparatus is provided for electrochemically processing an anodic material in strip form, such as the stainless steel print bands used in high speed printers. Also provided is an electrochemical process including electroetching, electropolishing, or bot... | 11/19/1991 |
| 4765878 | Plating current automatic compensating apparatus An apparatus for automatically maintaining plating current density within a predetermined range while controlling plating current to produce a desired plating thickness includes means for energizing only the number of plating cells required to maintain pl... | 08/23/1988 |
| 4749460 | Plating current automatic compensating apparatus An apparatus in which plating currents of a plurality of successive plating cells are normally automatically controlled in accordance with line speed to maintain uniform plating thickness, and in which the number of energized plating cells is increased or... | 06/07/1988 |
| 4167462 | Electrode drive and controls for electrochemical machining An improved apparatus for electrolytically removing material from a workpiece includes a plurality of electrodes which are movable relative to each other through working strokes. In order to coordinate the movement of the electrodes, they are stopped at o... | 09/11/1979 |
| 4134819 | Arrangement for controlling the electric energy supply to an electroplating installation An arrangement for controlling the electric energy supply rate to an electroplating installation includes a positionally adjustable actuating member connected to a carrier which supports workpieces to be electroplated in an electroplating vat, and a senso... | 01/16/1979 |
| 4129480 | Method and apparatus for determining the immersed surface area of one of the electrodes of an electro-chemical bath The immersed surface area of one of the electrodes in a conventional electro-chemical bath is accurately determined, so that the bath may be operated at an optimium current density, to obtain high quality electro-plating or electro-polishing. The current ... | 12/12/1978 |
| 4127465 | Film processing apparatus for the electrolytic recovery of silver Silver is recovered from used film plates by passing them into a solution into which their silver material is dissolved and by electroplating the dissolved silver out of the solution. Electrical circuits are provided to increase the magnitude of a continu... | 11/28/1978 |
| 4098666 | Apparatus for regulating anode-cathode spacing in an electrolytic cell An improved method and apparatus for adjusting the space between an adjustable anode and a cathode in an electrolytic cell wherein current measurements and voltage measurements are obtained for conductors to the anode sets and compared with predetermined ... | 07/04/1978 |
