U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"The idea that cavalry will be replaced by these iron coaches is absurd. It is little short of treasonous."

Aide-de-camp to Field Marshal Haig ; At a tank demonstration, 1916

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 204/288.1 - And dielectric gasket or spacer


Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Apparatus also having an electrically insulating gasket
No. of patents: 180
Last issue date: 04/22/2008


1          
NumberTitleIssue Date
7363110Gasket with curved configuration at peripheral edge
A gasket having the form of a frame is provided with a curved portion at an inner or outer periphery thereof. When used in combination with a similarly configured gasket, the two gaskets may together, upon compression, form a pinch seal. The curved portion may be pr...
04/22/2008
7297239Method and apparatus for the electrochemical deposition and planarization of a material on a workpiece surface
An electrochemical apparatus is provided which deposits material onto or removes material from the surface of a workpiece. The apparatus comprises a polishing pad and a platen which is in turn comprised of a first conductive layer in contact with the polishing pad a...
11/20/2007
7294243Contact assemblies for electrochemical processing of microelectronic workpieces and method of making thereof
Contact assemblies for electrochemical processing of microelectronic workpieces. The contact assembly (400) can comprise a support member (410) that includes an inner wall (412) which defines an opening (414) configured to receive the wor...
11/13/2007
7232507High volumetric efficiency electrochemical cell design for treatment of low concentrations of contaminants in low conductivity water
An electrochemical cell design is disclosed for the particular application of the electrochemical treatment of contaminants in water. The cell is designed to allow the treatment of low concentrations of contaminants in low conductivity water efficiently, and to be s...
06/19/2007
7223324Capping board with separating walls
Disclosed in a capping board for use to support hanging legs of anodes and cathodes within adjacent electrolytic cells. This capping board has a main body having a bottom surface shaped to fit onto upper edges of the adjacent cells, and a top surface. A first set of...
05/29/2007
7204919Capping board with at least one sheet of electrically conductive material embedded therein
Disclosed is a capping board for use to support anodes and cathodes within adjacent electrolytic cells, which has a plurality of individual seats positioned in spaced apart relationship all along its length to receive and support hanging legs projecting from these a...
04/17/2007
7048838Ion exchange membrane electrolyzer
The invention provides an ion exchange membrane electrolyzer ensuring a satisfactory circulation of electrolyte, high electrolytic efficiency and great ridigity. An anode chamber partition in a flat sheet form is joined to a cathode chamber partition in a flat sheet...
05/23/2006
7033479Electrolytic cells with renewable electrodes structures and method for substituting the same
The invention is relative to an electrolytic cell comprising electrodes spaced apart from the back-wall by means of ribs, wherein a portion of the contact surface between the electrodes and the ribs is free from constraints in order to permit the complete removal of...
04/25/2006
7018516Bipolar multi-purpose electrolytic cell for high current loads
A bipolar multi-purpose electrolytic cell for high current loads has a frame, two electrode edge plates with metal electrode sheet, and power supply and of bipolar plates. Each includes a plastic electrode base body with electrode rear spaces and/or with coolings sp...
03/28/2006
7003868Coated stainless-steel/copper weld for electroplating cathode
A copper welding rod is used in an arc-welding operation to form a bead that joins a copper starter sheet and a stainless steel hanger bar. The amperage level of the arc-welding equipment is set to generate heat at the weld site which is above the melting point of c...
02/28/2006
7001493Apparatus for preparing sterilizing water and process for sterilizing water
The present invention provides an apparatus for preparing sterilizing water, which comprises an electrolyzer wherein an anode chamber (10) and a cathode chamber (20) partitioned by an ion exchange membrane (40) form a unit cell (A), being altern...
02/21/2006
6962649Contact assemblies, methods for making contact assemblies, and machines with contact assemblies for electrochemical processing of microelectronic workpieces
Contact assemblies for electrochemical processing of microelectronic workpieces. The contact assemblies can comprise a support member that includes an inner wall which defines an opening configured to receive the workpiece and a plurality of contacts. The individual...
11/08/2005
6939448Contact assemblies, methods for making contact assemblies, and plating machines with contact assemblies for plating microelectronic workpieces
Contact assemblies, electroplating machines with contact assemblies, and methods for making contact assemblies that are used in the fabrication of microelectronic workpieces. The contact assemblies can be wet-contact assemblies or dry-contact assemblies. A contact a...
09/06/2005
6911127Contact assemblies, methods for making contact assemblies, and plating machines with contact assemblies for plating microelectronic workpieces
Contact assemblies, electroplating machines with contact assemblies, and methods for making contact assemblies that are used in the fabrication of microelectronic workpieces. The contact assemblies can be wet-contact assemblies or dry-contact assemblies. A contact a...
06/28/2005
6884330Counter plate electrode with self adjusting z-axis
The present invention relates to a method and apparatus for properly and consistently spacing an electrode from a workpiece while electrochemically etching (ECM) grooves to a precise depth in a surface of the workpiece to form a fluid dynamic bearing. The electrode ...
04/26/2005
6805778Contact assembly for supplying power to workpieces during electrochemical processing
Methods used in semiconductor electroplating systems, such as for plating copper, onto a semiconductor wafer or other semiconductor workpiece. The methods apply to patterned metal layers plated onto a seed layer which is partially protected by an overlying photoresi...
10/19/2004
6761808Electrode structure
An electrode structure for use, for example, in a bipolar electrolyser comprising (i) a pan with a dished recess and a flange around the periphery thereof for supporting gasket means for sealing a separator between the flanges in adjacent electrode structures, which...
07/13/2004
6663762Plating system workpiece support having workpiece engaging electrode
A semiconductor workpiece holder used in electroplating systems for plating metal layers onto a semiconductor workpieces, and is of particular advantage in connection with plating copper onto semiconductor materials. The workpiece holder includes electrod...
12/16/2003
6576098Metal cathode sheet
The present invention relates to a metal cathode sheet as component of cathode equipment for an electrolysis tank for the electrolytic recovery of pure metals, especially copper. The cathode sheet is provided, at its side edges which come into contact wit...
06/10/2003
6478936Anode assembly for plating and planarizing a conductive layer
A particular anode assembly can be used to supply a solution for any of a plating operation, a planarization operation, and a plating and planarization operation to be performed on a semiconductor wafer. The anode assembly includes a rotatable shaft dispo...
11/12/2002
6409892Reactor vessel having improved cup, anode, and conductor assembly
An improved anode, cup and conductor assembly for a reactor vessel includes an anode assembly supported within a cup which holds a supply of process fluid. The cup is supported around its perimeter within the reactor vessel. The anode assembly has an anod...
06/25/2002
6395155Electrolysis plate
An electrolysis plate is described which consists of an outer non-conductive frame, particularly a frame having a fiber-reinforced cresol resin, an electrically conductive, bipolar graphite plate which is mounted therein and is preferably slotted on both ...
05/28/2002
6383352Spiral anode for metal plating baths
A metal anode having at least a portion of which formed in a spiral configuration is disclosed. The spacing between the adjacent spirals of the anode is essentially uniform in order to provide uniform fluid flow and electrical characteristics. The anode m...
05/07/2002
6358388Plating system workpiece support having workpiece-engaging electrodes with distal contact-part and dielectric cover
A semiconductor workpiece holder used in electroplating systems for plating metal layers onto a semiconductor workpieces, and is of particular advantage in connection with plating copper onto semiconductor materials. The workpiece holder includes electrod...
03/19/2002
6325903Parallel action holding clamp for electroplating articles
A holding clamp device, for releasably holding a thick planar article over ground, comprising: an elongated main arm member, defining first and second opposite end portions; a pair of first and second tubular bar members, each defining an outer end portio...
12/04/2001
6312572Electrolyzer
The present invention provides an ion exchange membrane type electrolyzer, which comprises electrodes at opposed positions via an ion exchange membrane, spacers are mounted in dot-like arrangement on openings of electrode surface to maintain spacing betwe...
11/06/2001
6290827Device for electrochemical measurement
A measuring system with a measuring body (2) mounted on a rotatable shaft (1) and being provided with electrodes (16) for measuring electrical currents obtained through chemical reactions within an analyte solution. In the rotatable shaft is housed an ele...
09/18/2001
6284109Spacer mechanism for anodes
A spacer mechanism which is used to separate electrodes within an electrowinning process. The spacers have a central body portion which defines the distancing between the electrodes and at least four sloping arms extending from the central body. The arms ...
09/04/2001
6280582Reactor vessel having improved cup, anode and conductor assembly
An improved anode, cup and conductor assembly for a reactor vessel includes an anode assembly supported within a cup which holds a supply of process fluid. The anode assembly has an anode shield carrying an anode. The anode shield and the anode are suppor...
08/28/2001
6270647Electroplating system having auxiliary electrode exterior to main reactor chamber for contact cleaning operations
A system for electroplating a semiconductor wafer is set forth. The system comprises a first electrode in electrical contact with the semiconductor wafer and a second electrode. The first electrode and the semiconductor wafer form a cathode during electro...
08/07/2001
6267856Parallel action holding clamp for electroplating articles
A holding clamp device, for releasably holding a thick planar article over ground, comprising: an elongated main arm member, defining first and second opposite end portions; a pair of first and second tubular bar members, each defining an outer end portio...
07/31/2001
6264810Electromechanical attachment of inert electrode to a current conductor
A coupling for an inert electrode for refining a metal is provided. The coupling includes an electrode assembly and an electrically conductive support structure assembly. The support structure assembly includes a mechanical connection and an electrical co...
07/24/2001
6251257Apparatus and method for electrochemically etching grooves in an outer surface of a shaft
The present invention is directed to an apparatus 245 and method of etching grooves 235 in a shaft 175. In one embodiment, a cathode 250 is provided for electrochemically etching grooves 235 in an outer surface 215 of the shaft 175 to form a fluid dynamic...
06/26/2001
6228231Electroplating workpiece fixture having liquid gap spacer
A fixture for supporting a workpiece during electroplating of a metal upon the workpiece in a conductive electroplating bath includes a non-conductive frame member for receiving the workpiece therein. The fixture further includes a current distribution me...
05/08/2001
6156167Clamshell apparatus for electrochemically treating semiconductor wafers
An apparatus for electroplating a wafer surface includes a cup having a central aperture defined by an inner perimeter, a compliant seal adjacent the inner perimeter, contacts adjacent the compliant seal and a cone attached to a rotatable spindle. The com...
12/05/2000
6120657Device for transmitting electric current to disc elements in surface-coating thereof
A device for evenly distributed electrical current transmission to a disc element when electroplating the disc element includes a closed loop of an elongated, elastic, electrically conducting body contacting one side of the disc element at least at its ou...
09/19/2000
6113759Anode design for semiconductor deposition having novel electrical contact assembly
An anode assembly includes a perforated anode and an electrical contact assembly attached to the anode. A perforated anode holder holds the anode. The anode holder includes perforations at least in a bottom wall such that plating solution may flow through...
09/05/2000
6103076Auxiliary anode element suitable for use in electroplating a bent tubular workpiece
A flexible auxiliary anode element for electroplating a tubular workpiece while the workpiece and an anode element are immersed in a plating liquid contained in a plating both. The flexible auxiliary anode element can be inserted into a hollow interior of...
08/15/2000
6099712Semiconductor plating bowl and method using anode shield
A semiconductor plating bowl which includes a shield on a consumable anode. The shield is preferably made from a dielectric material, such as a plastic. The shield is placed in the area upon which flowing plating fluid would otherwise impinge upon the pro...
08/08/2000
6080289Electroplating apparatus with self-cleaning contacts
An electroplating apparatus comprising a plating tank containing electroplating solution, one or more substrates to be electroplated, and an electrical contact mechanism. The electrical contact mechanism comprises a first set of one or more conductive con...
06/27/2000
1          
 
Sign InRegister
Username  
Password   
forgot password?