Patents for C25D 21 - Processes for servicing or operating cells for electrolytic coating (5,798)
01/2000
01/20/2000WO2000003073A2 Paced chemical replenishment system
01/20/2000WO1999034035A3 Method for microplasma oxidation of valve metals and their alloys, and device therefor
01/20/2000DE19835945C1 Installation for chemical and/or electrolytic coating of aluminum surfaces
01/18/2000US6015462 Semiconductor processing workpiece position sensing
01/13/2000WO2000001863A2 Method for recovering precious metals
01/13/2000WO1999060188A3 Method for electro copperplating substrates
01/12/2000EP0786021B1 Process for making copper foil
01/06/2000WO2000001208A1 Assembly of an electronic component with spring packaging
01/05/2000EP0969125A1 Process for bringing zinc into solution in a ZnNi-electrolyte
01/05/2000EP0968325A2 A surface-treatment plant
01/05/2000EP0871802B1 Method of removing acid formed during cathodic electrodip coating
01/05/2000DE19829274A1 Verfahren zur Rückgewinnung von Edelmetallen A process for the recovery of precious metals
01/05/2000CN1240241A Method and equipment for preparing and supplying electrolyte in electro-chemical processing device
12/1999
12/29/1999EP0966557A1 Circuitry and method for an electroplating plant or etching plant pulse power supply
12/29/1999CN1047809C Apparatus for solving zinc by using of electrolyte of acid containing liquid
12/23/1999DE19923944A1 Process for placing and/or replenishing an electrolyte in an electrochemical treatment apparatus
12/21/1999US6004447 Forming a layer of metal on interiors of axles
12/21/1999US6004440 Cathode current control system for a wafer electroplating apparatus
12/15/1999EP0963463A2 Method and device for making layer electrodes
12/08/1999CN1237653A Non-dissolution anodic uniformly-coating method and its equipment
12/07/1999US5998228 Method of testing semiconductor
12/07/1999US5997712 Copper replenishment technique for precision copper plating system
12/07/1999US5997711 Control agent for reducing metal acid mist emissions from electrolytic cell operations
12/01/1999CN1237215A Circuitry and method for electroplating plant or etching plant pulse power supply
11/1999
11/25/1999WO1999060189A2 Method for metal coating of substrates
11/25/1999WO1999060188A2 Method for electro copperplating substrates
11/25/1999WO1999060179A1 Recovery of nickel from copper refinery tankhouse electrolyte
11/25/1999CA2331757A1 Process for coating substrates with metals
11/25/1999CA2331750A1 Method for electro copperplating substrates
11/24/1999EP0959153A2 An electroplating machine
11/24/1999EP0958411A1 Control agent for reducing metal acid mist emissions from electrolytic cell operations
11/24/1999CN1236026A Electroplating machine
11/18/1999DE19822075A1 Metallization of polymeric substrates for production of circuit boards
11/16/1999US5983493 Method of temporarily, then permanently, connecting to a semiconductor device
11/11/1999WO1999057340A2 Chemical mixing, replenishment, and waste management system
11/11/1999DE19820770A1 Electrochemical coating of a substrate or an article, and an article with such a coating
11/02/1999US5976341 Process and apparatus for electrolytic deposition of metal layers
11/02/1999US5974662 Method of planarizing tips of probe elements of a probe card assembly
10/1999
10/28/1999WO1999054920A2 Electro-chemical deposition cell for face-up processing of single semiconductor substrates
10/27/1999EP0868545B1 Process and circuitry for generating current pulses for electrolytic metal deposition
10/21/1999DE19816708A1 Method for reconditioning of inorganic acids contaminated with metals
10/20/1999EP0950728A2 Method and apparatus for anodizing objects
10/20/1999EP0950130A1 Apparatus and method for electroforming
10/14/1999WO1999041434A3 Plating apparatus and method
10/13/1999CN2343173Y Recovering regenerator for electroplating liquid
10/12/1999US5965820 Vibrational processing apparatus and method
10/06/1999EP0946794A1 Method and device for the precise electrolytic deposition and etching of metal layers on circuit boards and conductor foils in continuous systems
09/1999
09/30/1999WO1999040238A3 Method for electrically regenerating contaminated rhodium solutions
09/30/1999DE19812005A1 Pulsed stream is used in the electrodialytic regeneration of process solutions in galvanic and other deposition processes
09/29/1999CN1229859A Treatment process for dust
09/22/1999EP0715660B1 Electrolytic treatment of material
09/16/1999DE19810859A1 Treating galvanic bath
09/01/1999CN1227284A Anodizing apparatus and method and porous substrate
08/1999
08/31/1999US5944918 Aircraft; applying phenolic resin, curing
08/19/1999WO1999041434A2 Plating apparatus and method
08/19/1999WO1999010563A3 Method and device for energy saving simultaneous electrolytic treatment of several workpieces
08/18/1999CN2333717Y Movable bath filtering machine
08/18/1999CN1226290A Control agent for reducing metal acid mist from electrolytic cell operation
08/17/1999US5938913 Process and device for electrolytic treatment of continuous running material
08/12/1999WO1999040238A2 Method for electrically regenerating contaminated rhodium solutions
08/05/1999WO1999010564A3 Method and device for regulating the concentration of substances in electrolytes
08/04/1999CN1044448C Medium temperature CO conversion catalyst and its producing process
08/03/1999US5932081 Method and device for galvanizing plate-shaped products in horizontal continuous plants
07/1999
07/21/1999EP0930380A1 Electrolytic cell with removable electrode and its operating method
07/13/1999US5922472 Method for preparing pre-coated aluminum alloy articles and articles prepared thereby
07/08/1999WO1999034035A2 Method for microplasma oxidation of valve metals and their alloys, and device therefor
07/01/1999DE19805589C1 Cleaning unit for rotating current roll of electrolytic strip coating installation
06/1999
06/30/1999EP0926269A2 Anodizing apparatus and method and porous substrate
06/24/1999WO1999031304A1 Plating device and method of confirming current feed
06/24/1999DE19804534C1 Impure rhodium solution is regenerated by anodic oxidation in a cell with a cation exchange membrane
06/17/1999WO1999029933A1 Method of reducing defects caused by conductor roll surface anomalies using high volume bottom sprays
06/16/1999EP0886894A4 Contact carriers (tiles) for populating larger substrates with spring contacts
06/09/1999EP0746640B1 Method of electrolytically depositing metals from electrolytes containing organic additives
06/02/1999CN2321789Y Chromium fog suppressor used in electric platting
05/1999
05/27/1999WO1999014401A9 Cathode current control system for a wafer electroplating apparatus
05/27/1999WO1999010562A3 Maintenance method for continuous electroplating plants
05/26/1999EP0838134B1 Procedure and device for the chemical and electrolytic treatment of printed circuit boards and films
05/25/1999US5906725 Method for preparing nickel-zinc-copper or nickel-zinc alloy electroplating solutions from zinc-containing waste articles having a nickel/copper electroplating layer
05/12/1999EP0915190A2 Process and apparatus for supplying metal ions to alloy electroplating bath
05/12/1999EP0915182A1 Plating method
04/1999
04/28/1999CN1215096A Plating method
04/27/1999US5897756 Device for chemical or electroyltic surface treatment of plate-like objects
04/27/1999US5897326 Method of exercising semiconductor devices
04/22/1999WO1999019544A1 Copper metallization of silicon wafers using insoluble anodes
04/22/1999CA2305456A1 Copper metallization of silicon wafers using insoluble anodes
04/08/1999WO1999017344A1 Apparatus and methods for controlling workpiece surface exposure to processing liquids during the fabrication of microelectronic components
04/08/1999WO1999016936A1 Electroplating system having auxiliary electrode exterior to main reactor chamber for contact cleaning operations
04/07/1999CN1213019A Electroplating of low-stress nickel
04/06/1999US5891343 Method for removing ferrous ions from acidic tinning electrolytes and tinning electrolyte recovery plant for iron using the same
03/1999
03/31/1999EP0904428A1 An electrolytic process for cleaning electrically conducting surfaces
03/30/1999US5888373 Method for repairing nickel-zinc-copper or nickel-zinc alloy electroplating solutions from acidic waste solutions containing nickel and zinc ions and electroplating thereof
03/25/1999WO1999014401A1 Cathode current control system for a wafer electroplating apparatus
03/23/1999US5885462 Process for reducing the concentration of multivalent cations in aqueous solutions
03/23/1999US5885434 Measuring and storing surface topography of the workpiece during a first scan with a fine tip probe, then using the stored information to control probe position during a second scan in which an electrochemical reaction is performed
03/23/1999US5884398 Mounting spring elements on semiconductor devices
03/04/1999WO1999010564A2 Method and device for regulating the concentration of substances in electrolytes
03/04/1999WO1999010563A2 Method and device for energy saving simultaneous electrolytic treatment of several workpieces
03/04/1999WO1999010562A2 Maintenance method for continuous electroplating plants
03/04/1999CA2301299A1 Method and device for regulating the concentration of substances in electrolytes
03/03/1999EP0801883B1 Method and device for the treatment of plate-shaped workpieces having small holes
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