Patents
Sitemap › C23 - Coating metallic material; Coating material with metallic material; Chemical surface treatment; Diffusion treatment of metallic material; Coating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general; Inhibiting corrosion of metallic material or incrustation in general › C23F - Non-mechanical removal of metallic material from surfaces; Inhibiting corrosion of metallic material; Inhibiting incrustation in general; Multi-step processes for surface treatment of metallic material involving at least one process provided for in class and at least one process covered by subclass  or or class › C23F 1 - Etching metallic material by chemical means
Patents for C23F 1 - Etching metallic material by chemical means (16,062)
04/1998
04/21/1998US5741432 Stabilized nitric acid compositions
04/21/1998US5741429 Patterning the tubular elements sized for intravascular insertion within human body by applying photoresists, masking, activating light source to expose photoresists, developing and removing photoresist material
04/21/1998US5740967 Spray nozzle and method of manufacturing same
04/16/1998WO1998015674A1 Metal surface treatment solutions and process
04/15/1998EP0836370A1 Method and system for etching substrates for printed circuit boards
04/15/1998EP0797512A4 Solution and process for chemically resharpening smoothing tools, forming tools, and cutting tools
04/14/1998US5738977 Forming copper layer on substrate surface, forming layer of nickel-boron, cataphoretically coating with photosensitive lacquer, exposing, developing, removing uncovered layers, stripping lacquer, sealing with nickel-phosphorus layer
04/14/1998US5738797 Etching metal foil to undercut; forming air bridges
04/08/1998EP0833961A1 Ammoniacal metal solution recycling process
04/08/1998CN1178261A Method for recovering etchant from etching waste liquid containing iron chloride
04/08/1998CN1178260A Liquid for separating tin from tin alloy
04/07/1998US5736065 Aqueous solution of an alkali boron hydride mixed with a water-soluble polyoxyethylene chain-containing organic compound
04/07/1998US5736002 Methods and equipment for anisotropic, patterned conversion of copper into selectively removable compounds and for removal of same
04/07/1998US5735893 Expandable stents and method for making same
04/02/1998WO1998013710A1 Tapered capillary optics
04/02/1998WO1998013537A1 Method of producing a hollow structure
04/01/1998EP0832407A1 Passive gas substrate thermal conditioning apparatus and method
04/01/1998EP0801606A4 Cleaning method
03/1998
03/31/1998US5733465 Process for producing cutting die and produced cutting die
03/26/1998DE19637194A1 Gasgemisch und Verfahren zum Trockenätzen von Metallen, insbesondere Kupfer, bei niedrigen Temperaturen Gas mixture and process for dry etching of metals, in particular copper, at low temperatures
03/25/1998EP0830168A1 Flexible tubular device for use in medical applications
03/25/1998CN1177204A Etching method
03/25/1998CN1177021A Mask-nonmask etching tech. for multi-layer silicon micro-mechanism structure
03/19/1998WO1998011276A1 Gas mixture and method of dry etching metals, in particular copper, at low temperatures
03/17/1998US5728608 Sulfur hexafluoride and chlorine
03/17/1998US5728510 Prosthetic articles and methods for producing same
03/17/1998US5728503 Micro-roughness to improve adhesion, hardness but still provide good image contrast
03/17/1998US5728227 Method for removing a diffusion coating from a nickel base alloy
03/17/1998US5728158 Expandable stents
03/12/1998WO1998010121A1 Method for anisotropic etching of structures in conducting materials
03/12/1998DE19738965A1 Reflection type rotary optical coder
03/11/1998CN1037727C Etching liquid for etching porous silicon, etching process using same
03/10/1998US5726099 Method of chemically mechanically polishing an electronic component using a non-selective ammonium persulfate slurry
03/05/1998WO1998009320A1 Surface treatment for micromachining
03/04/1998EP0826793A1 Composition for stripping tin or tin alloys
03/04/1998EP0615504B1 Cleaning and etching methods utilising acoustic fields
03/04/1998CN1175344A Copper coating
03/03/1998US5723062 Ferric ammonium sulfate, phosphoric or sulfuric acid
02/1998
02/26/1998WO1998008145A1 Baths for producing microstructures
02/26/1998DE19634122A1 Neuartige Bäder zur Erzeugung von Mikrostrukturen Novel baths for producing microstructures
02/25/1998CN1174248A Immersing spray method
02/24/1998US5721176 Use of oxalyl chloride to form chloride-doped silicon dioxide films of silicon substrates
02/17/1998US5718874 Solvent extraction method of separating ferric chloride from nickel chloride
02/12/1998WO1998005516A1 Microetching and cleaning of printed wiring boards
02/10/1998US5716495 Cleaning method
02/05/1998WO1998004646A1 Chemical mechanical polishing composition and process
02/05/1998DE19732419A1 Etching agent used in production of circuit boards
02/03/1998US5714808 Touch control supply system for an electrical device, method of implementation and applications
01/1998
01/28/1998EP0821386A2 Color selecting mechanism
01/28/1998EP0820359A1 Method and apparatus for circuit board treatment
01/28/1998EP0820351A1 Fluid delivery apparatus and method
01/28/1998EP0725727A4 Method of making machine-engraved seamless tube
01/27/1998US5711849 Process optimization in gas phase dry etching
01/13/1998US5707421 Process for the inhibition of leaching of lead from brass alloy plumbing fixtures
01/13/1998US5706995 Apparatus for the treatment of cloth strip with metal-surface rollers
01/07/1998EP0816118A1 Aluminum support for lithographic printing plate
01/07/1998EP0815585A1 Preferential etch of semiconductor substrate with respect to epitaxial layers
01/06/1998US5705082 Coating, etching
01/06/1998US5705048 Apparatus and a process for regenerating a CUCl2 etchant
12/1997
12/31/1997CN1036861C Method for treating nickel-contg. etching waste fluid
12/30/1997US5702620 Sensitive to high energy beams
12/30/1997US5702583 Using photoresist
12/30/1997US5701654 Precision fluid head transport
12/30/1997CA2060941C System for performing work on workpieces
12/29/1997EP0814179A1 Method for removing a diffusion coating from a nickel base alloy
12/29/1997EP0813500A1 Purification of metal containing solutions
12/29/1997EP0559900B1 Method of surface treating rolling roll
12/23/1997US5700389 Etching solution for copper or copper alloy
12/17/1997CN1168194A Method of cleaning substrates
12/17/1997CN1167839A Metallographic etching reagent
12/11/1997WO1997046130A1 Molded, hook-shaped fastening
12/11/1997WO1997046129A1 Molding of fastening hooks and other devices
12/11/1997CA2257501A1 Molding of fastening hooks and other devices
12/10/1997EP0812012A1 Method for etching to produce metal film structures having tapered sidewalls
12/09/1997US5696035 Etchant, etching method, and method of fabricating semiconductor device
12/09/1997US5695660 Optical techniques of measuring endpoint during the processing of material layers in an optically hostile environment
12/09/1997US5695659 Process for removing a protective coating from a surface of an airfoil
12/02/1997US5693454 Two-sided photoetching process for needle fabrication
12/02/1997US5693239 Polishing slurries comprising two abrasive components and methods for their use
11/1997
11/25/1997US5690841 Method of producing cavity structures
11/20/1997WO1997043463A1 Steel pickling process in which the oxidation of the ferrous ion formed is carried out electrolytically
11/20/1997CA2253826A1 Steel pickling process in which the oxidation of the ferrous ion formed is carried out electrolytically
11/19/1997EP0807424A2 Expandable stents and method for making same
11/18/1997US5688359 Muffle etch injector assembly
11/18/1997US5688326 Apparatus for coating elongated material with photoresist
11/13/1997DE19618974A1 Semiconductor material treatment in cavitating liquid bath
11/12/1997EP0806128A1 Method of selectively removing a metallic layer from a non-metallic substrate
11/12/1997EP0805722A1 Roughening of metal surfaces
11/12/1997CN1164580A Device for surface treatment of strips with liquids
11/11/1997US5685969 Sensor arrangement
11/11/1997CA2056943C Substrate of improved plasma sprayed surface morphology
11/06/1997DE19718401A1 Removing metal impurities from silicon metalloid surface
11/05/1997EP0805484A1 Method of cleaning substrates
11/05/1997CN1164122A Plasma processor and its treating method
11/04/1997US5683943 Process for etching a semiconductor lead frame
11/04/1997US5683591 Process for producing surface micromechanical structures
11/04/1997US5683415 Surgical needle
10/1997
10/30/1997DE19711717A1 Non-precious metal especially zinc dissolution
10/22/1997EP0801606A1 Cleaning method
10/15/1997CN1161906A Method for making large multi-gradation intaglio plate floral roller
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