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Class 205/219 - Electrolytic treatment


Subclass of Class 205 - Electrolysis: processes, compositions used therein, and methods of preparing the compositions
Definition: Subject matter wherein the substrate is treated electrolytically
No. of patents: 140
Last issue date: 03/13/2012


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NumberTitleIssue Date
8133377Method and apparatus for producing conductive material
A photosensitive film, which has a transparent support and a silver salt emulsion layer containing a silver salt formed thereon, is exposed and developed to form a metallic silver portion. The base material to be plated is electrified in an electrolytic solution fre...
03/13/2012
7422629Nonsludging zinc phosphating composition and process
Electrolysis using a suitable electrolyte provides a completely nonsludging zinc phosphate conversion coating process that produces a high quality conversion coating in a very short time. The suitable electrolyte contains at least water, dissolved nitric acid, and d...
09/09/2008
7332259Aluminum support for planographic printing plate, its manufacturing process, and planographic printing plate material
Disclosed is a process for manufacturing an aluminum support for a light sensitive planographic printing plate material, the process comprising the steps of surface-roughening an aluminum plate, anodizing the surface-roughened aluminum plate, surface treating the an...
02/19/2008
7270734Near neutral pH cleaning/activation process to reduce surface oxides on metal surfaces prior to electroplating
The invention relates to a method for electroplating a metal deposit on electroplatable portions of composite articles that have both electroplatable and non-electroplatable portions. In this method, the invention is an improvement which comprises treating the artic...
09/18/2007
7214440Metallic separator for fuel cell and production method for the same
A metallic separator for a fuel cell has excellent corrosion resistance and contact resistance, even when a gold coating is applied directly without a surface treatment by a nickel coating. The metallic separator for a fuel cell, comprising stainless steel having a ...
05/08/2007
7201830Anode for oxygen evolution and relevant substrate
The invention concerns an anode for gas evolution in electrochemical applications comprising a titanium or other valve metal substrate characterized by a surface with a low average roughness, having a profile typical of a localized attack on the crystal grain bounda...
04/10/2007
7147896Electroless nickel plating method for the preparation of zirconia ceramic
An electroless nickel plating method for the preparation of zirconia ceramic material. The surface of the zirconia ceramic material is first cleaned of contaminants. This is followed by an etching step where the surface of the material is etched by an acid. Then, ac...
12/12/2006
7135404Method for applying metal features onto barrier layers using electrochemical deposition
The present invention is directed to a process for producing structures containing metallized features for use in microelectric workpieces. The process treats a barrier layer to promote the adhesion between the barrier layer and the metallized feature. Suitable mean...
11/14/2006
7128821Electropolishing method for removing particles from wafer surface
An electropolishing method for removing potential device-contaminating particles from a wafer, is disclosed. The method includes immersing the wafer in an electropolishing electrolyte solution and removing defects and particles from the wafer by rotational friction ...
10/31/2006
7105082Composition and method for electrodeposition of metal on a work piece
A composition for electrodeposition of a metal on a work piece, which electrodeposition is conducted at an electrodeposition temperature, is provided. The composition comprises a metal salt, a polymer suppressor having a cloud point, an accelerator and an electrolyt...
09/12/2006
7063017Printing plate and plate making method
Provided is a printing plate comprising a substrate and a hydrophilic porous layer formed on a surface of the substrate. Typically, the substrate is made of aluminum plate, and the porous substrate consists of an anodized layer. Owing to the porous nature of the sur...
06/20/2006
7022165Tubular hydrogen permeable metal foil membrane and method of fabrication
A tubular hydrogen permeable metal membrane and fabrication process comprises obtaining a metal alloy foil having two surfaces, coating the surfaces with a metal or metal alloy catalytic layer to produce a hydrogen permeable metal membrane, sizing the membrane into ...
04/04/2006
7018482Method of manufacturing electronic devices, and apparatus for carrying out such a method
A method of manufacturing electronic devices, in particular, but not exclusively, semiconductor devices, and apparatus for carrying out such a method, in which method wafers 1, which are provided at a surface 2 with a material 3 to be removed, a...
03/28/2006
7018521Method of producing bright anodized finishes for high magnesium, aluminum alloys
A method is disclosed for forming a clear anodized coating on an aluminum base alloy containing more than three percent by weight magnesium. The alloy surface to be anodized is treated with an aqueous solution of a mineral acid such as sulfuric acid (10 to 20%), nit...
03/28/2006
7001446Dense, layered membranes for hydrogen separation
This invention provides hydrogen-permeable membranes for separation of hydrogen from hydrogen-containing gases. The membranes are multi-layer having a central hydrogen-permeable layer with one or more catalyst layers, barrier layers, and/or protective layers. The in...
02/21/2006
6967164Method for electroless plating a contact pad
A method and apparatus is disclosed for sequential processing of integrated circuits, particularly for conductively passivating a contact pad with a material which resists formation of resistive oxides. In particular, a tank is divided into three compartments, each ...
11/22/2005
6958260Hydrogen gettering system
A method, system and materials for use in hydrogen gettering in conjunction with microelectronic and microwave components that are generally hermetically sealed in an enclosure typically referred to as a “package”. Gettering materials that can be used include ti...
10/25/2005
6932892Apparatus and method for electrolytically depositing copper on a semiconductor workpiece
A process for applying a metallization interconnect as to a semiconductor workpiece having a barrier layer deposited on a surface thereof is set forth. The process includes the forming of an ultra-thin metal seed layer on the barrier layer. The ultra-thin seed layer...
08/23/2005
6919013Apparatus and method for electrolytically depositing copper on a workpiece
A process for applying a metallization interconnect structure to a semiconductor workpiece having a barrier layer deposited on a surface thereof is set forth. The process includes the forming of an ultra-thin metal seed layer on the barrier layer. The ultra-thin see...
07/19/2005
6913791Method of surface treating titanium-containing metals followed by plating in the same electrolyte bath and parts made in accordance therewith
A method for surface treating a titanium-containing metal, comprising the steps of: (a) treating at least a portion of a surface of the titanium-containing metal with an anodic activation in an electrolyte bath; and (b) strike plating at least a portion of the surfa...
07/05/2005
6866945Magnesium containing aluminum alloys and anodizing process
An anodized aluminum alloy comprises an aluminum alloy comprising magnesium in an amount greater than 3 weight percent based on the total weight of the aluminum alloy; and a clear porous oxide layer having a thickness greater than about 5 micrometers disposed on and...
03/15/2005
6793796Electroplating process for avoiding defects in metal features of integrated circuit devices
Electroplating methods using an electroplating bath containing metal ions and a suppressor additive, an accelerator additive, and a leveler additive, together with controlling the current density applied to a substrate, avoid defects in plated films on substrates ha...
09/21/2004
6682645Process for producing aluminum support for lithographic printing plate
In a process for producing an aluminum support of a lithographic printing plate, the desired aluminum support is produced by imparting fine asperities to an aluminum plate and then roughening it electrochemically in an acidic aqueous solution. The roughen...
01/27/2004
6630400Method for electroless plating a contact pad
A method and apparatus is disclosed for sequential processing of integrated circuits, particularly for conductively passivating a contact pad with a material which resists formation of resistive oxides. In particular, a tank is divided into three compartm...
10/07/2003
6589602Highly adhesive surface-coated cemented carbide and method for producing the same
The present invention is to provide a highly adhesive surface-coated cemented carbide which comprises a cemented carbide base material and a hard film formed on a surface of the base material, characterized in that both of the hard film at a proximate por...
07/08/2003
6533917Method for producing aluminum support for lithographic printing plate
Disclosed are a method for producing an aluminum support for lithographic printing plates, comprising subjecting an aluminum plate in sequence to (1) a surface roughening treatment, (2) a heat treatment, (3) a treatment of dissolving from 0.01 to 5 g/m
03/18/2003
6531046Seed layer repair method
Disclosed are methods of repairing metal seed layers prior to subsequent metallization. Such repair methods provide metal seed layers disposed on a substrate that are substantially free of metal oxide and substantially free of discontinuities....
03/11/2003
6475646Lead frame and method of manufacturing the lead frame
A method for manufacturing a lead frame including the steps of electrocleaning the surface of a thin plate material, electropolishing the electrocleaned thin plate material, removing inclusions on the surface of the electropolished thin plate material, ri...
11/05/2002
6447664Methods for coating metallic articles
Methods for coating metallic articles. In an exemplary embodiment, the method comprises the steps of providing a metallic article having an external surface with an oxide thereon; removing at least part of the oxide from the external surface of the articl...
09/10/2002
6419811Method for surface treatment of copper foil
Disclosed is a process of treating the surface of copper foil without using harmful elements such as arsenic, selenium and tellurium unlike in the prior art. It is possible to, in an easy way, obtain a uniform rough condition and low roughness and produce...
07/16/2002
6413405Active carbon electro-deposited with Ag-I system having sterilizing effect
An environmentally functional active carbon and its method of manufacturing is provided. The active carbon has improved adsorption capability against disease-source bacteria and microbes with prominent anti-bacterial and sterilizing effect as well as agai...
07/02/2002
6342146Lead-free alloy plating method
A continuous plating system which is horizontal, allows for submersion of the entire article to be plated, and is useful for alloy plating. The invention provides a link/hinge conveyor system, the conveyor acts as the conductor, numerous processes/baths a...
01/29/2002
6328872Method and apparatus for plating and polishing a semiconductor substrate
The present invention provides a method and apparatus that plates/deposits a conductive material on a semiconductor substrate and then polishes the same substrate. This is achieved by providing multiple chambers in a single apparatus, where one chamber ca...
12/11/2001
6277510Porous electrode used for conductive material-filled polymer composite
The present invention provides a porous electrode used for a conductive material-filled polymer composite. At least one surface of the porous electrode is an open porous structure, which includes a plurality of macropores and micropores randomly distribut...
08/21/2001
6235180Method for forming phosphate film on the steel wires and apparatus used therefore
Method and appartus suitable for forming promptly a phosphate film of excellent performance for cold drawing on the steel wires are disclosed. The steel wires are descaled by cathodic electrolysis in acid solution, and thereafter, phosphate film are formed by ...
05/22/2001
6203936Lightweight metal bipolar plates and methods for making the same
Thin, light weight bipolar plates for use in electrochemical cells are rapidly, and inexpensively manufactured in mass production by die casting, stamping or other well known methods for fabricating magnesium or aluminum parts. The use of a light metal, s...
03/20/2001
6143158Method for producing an aluminum support for a lithographic printing plate
A method for producing an aluminum support for a lithographic printing plate comprising the steps of (a) electrolytic polishing an aluminum plate in an alkaline aqueous solution; and (b) electrochemically surface roughening the aluminum plate using direct...
11/07/2000
6132585Semiconductor element and method and apparatus for fabricating the same
The present invention aims to provide a highly reliable semiconductor element with high performance, and a fabrication method for such highly reliable semiconductor with excellent mass producibility. The photovoltaic elements comprise an electric conducto...
10/17/2000
6090254Process for coating metallic molding articles
A process for coating a metallic molding article comprising transporting said article by conveyer means continuously and serially through a degreasing stage (1), a first water rinsing stage (2), a surface conditioning stage (3), a chemical conversion trea...
07/18/2000
6045677Microporous microchannel plates and method of manufacturing same
A microchannel plate and method of manufacturing same is provided. The microchannel plate includes a plate consisting of an anodized material and a plurality of channels which are formed during the anodization of the material and extend between the two si...
04/04/2000
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