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)
01/1981
01/13/1981US4244833 With aqueous nitric acid solution containing chloride and manganous ions
01/07/1981EP0021395A1 A process for etching holes of uniform size in a substrate
01/07/1981EP0020986A1 Process for manufacturing slot-nozzle elements for separating gaseous or vaporous mixtures, especially isotope mixtures
01/07/1981EP0020935A1 A dry method of etching and an apparatus using solid masking materials for etch rate modification
01/06/1981US4243476 Bombardment of solid source by ion beam to form reactive gas
12/1980
12/30/1980US4242438 Photomask material
12/30/1980US4242176 Method of foaming perforate sheet material from wire mesh
12/30/1980CA1092727A1 Method for fabricating ultra-narrow metallic lines
12/30/1980CA1092497A1 Etching a succession of articles from a strip of sheet metal
12/23/1980US4240806 Abrading material
12/23/1980CA1092009A1 Etchant and process of etching
12/16/1980US4239587 Method of manufacturing a thin-film magnetic head with a nickel-iron pattern having inclined edges
12/16/1980US4239586 Etching of multiple holes of uniform size
12/10/1980EP0019964A1 Bath for the chemical polishing of steel surfaces
12/09/1980CA1090987A1 Recovery of tungsten carbide from scrap mining bits
12/02/1980US4237210 Aqueous photoresist method
12/02/1980US4236957 Dissolution of metals utilizing an aqueous H2 SOY --H2 O.sub. -mercapto containing heterocyclic nitrogen etchant
12/02/1980CA1090684A1 Method and an apparatus for cleaning a cold rolled steel sheet
11/1980
11/26/1980EP0019402A1 Chemical milling composition, with maskant application process and apparatus
11/26/1980EP0019064A1 Chemical or electrochemical process for selectively removing material
11/25/1980US4235664 Unitary type-carrier elements and method of making same
11/12/1980EP0018848A1 Method and apparatus for the electrolytic regeneration of etchants for metals
11/12/1980EP0018592A1 Process for the regeneration of ammoniacal etching solutions for etching metallic copper
11/11/1980US4233123 Using photoresist
11/11/1980US4233113 Used for printed circuits
11/11/1980US4233112 Printed circuits
11/11/1980US4233111 Dissolution of metals utilizing an aqueous H2 SO4 -H2 O2 -3-sulfopropyldithiocarbamate etchant
11/11/1980US4233110 Process for etching and preparing nickel-polyester offset printing plates
11/11/1980US4233108 Process for use in etching the outer surface of a metal member
11/11/1980US4233107 Etching electroless deposit of nickel-phosphorus alloy with nitric acid
11/11/1980US4233106 Automatic, continuous
10/1980
10/29/1980EP0018219A1 Preparation of an ultra-black coating due to surface morphology
10/28/1980US4230522 Phosphoric acid, nitric acid, acetic acid, fluoroborate anion
10/14/1980CA1087711A1 Wet processing ph control
09/1980
09/30/1980CA1086613A1 Selected stripping of metals
09/30/1980CA1086506A1 Continuous recovery of base metal from insulated wire scrap
09/02/1980US4220706 Etchant solution containing HF-HnO3 -H2 SO4 -H2 O2
08/1980
08/12/1980CA1083472A1 Crystallization apparatus and process
07/1980
07/29/1980US4215194 Photoresist masking
07/29/1980US4214711 Erosion device comprising a head with knives and process
07/23/1980EP0013492A1 Method of producing tubular boron bodies suitable for use as pick-up cantilevers
07/23/1980EP0013328A1 Method for treatment of a metal surface
07/15/1980US4212701 Process and composition of low toxicity for preparing aluminum surfaces for adhesive bonding
07/08/1980US4211006 Guarded razor blade
07/08/1980CA1081098A1 Stripping of electroplated nickel-iron alloys
06/1980
06/24/1980US4209008 Photon absorbing surfaces and methods for producing the same
06/24/1980US4208914 Method for determining the interaction between a chemical solution and an object immersed in the solution
06/17/1980US4208242 Method for color television picture tube aperture mask production employing PVA and removing the PVA by partial carmelizing and washing
06/17/1980CA1079614A1 Etching composition and method for using same
06/11/1980EP0011800A1 Etching process for copper and copper alloy surfaces
06/11/1980EP0011799A1 Process and apparatus for regenerating an etching solution containing cupric and/or ferric chloride in an electrolytic cell
05/1980
05/06/1980US4201836 Aluminum substrates grained with a saturated solution of aluminum salts of mineral acids
04/1980
04/16/1980EP0009677A1 Quaternary solution for the chemical etching of silicon and method for etching using such a solution
04/15/1980CA1075570A1 Method of treating surface of copper and its alloys
03/1980
03/11/1980US4192729 Etching and anodizing more efficiently
03/04/1980CA1072867A1 Oven cleaning article and process
02/1980
02/26/1980US4190489 Alkali metal bromide, bromine, water
02/26/1980US4190481 Apparatus for ion control of solutions
02/26/1980US4190474 Layer of nickel contains sulfur
02/19/1980CA1072219A1 Method of forming viaducts in semiconductor material
02/19/1980CA1071984A1 Protective coating for aluminum products
02/05/1980US4187140 Ethylenediamine, pyrocatechol and a diazine
01/1980
01/22/1980US4184910 Surface-texture filmwork generation
01/22/1980CA1070264A1 Process for the production of etched structures in a surface of a solid body by ionic etching
01/01/1980US4181222 Etching, plating, developing; transparent, flexibile container
12/1979
12/18/1979US4179622 Method and system for in situ control of material removal processes
12/04/1979US4176433 Method of remanufacturing turbine vane clusters for gas turbine engines
11/1979
11/20/1979US4175011 Sulfate-free method of etching copper pattern on printed circuit boards
11/14/1979EP0005415A1 A process of regenerating an ammoniacal etching solution
11/13/1979US4174253 Hydrogen peroxide, sulfuric acid
11/13/1979US4174251 Method of selective gas etching on a silicon nitride layer
11/13/1979CA1066144A1 Process for the production of fine structures consisting of a vapor-deposited material on a base
11/13/1979CA1066108A1 Production of shaving foil
11/06/1979US4173500 Process for producing porous cast iron
11/06/1979CA1065746A1 A1n masking for selective etching of sapphire
10/1979
10/31/1979EP0004872A2 Solution for the etching of silicon wafers having a well-defined etching rate and method resulting therefrom
10/23/1979US4172005 Method of etching a semiconductor substrate
10/17/1979EP0004615A1 Method and device for examining finely etched objects
10/17/1979EP0004560A1 Use of ammonium polyphosphate
10/09/1979US4170513 Recovery of tungsten carbide from scrap mining bits
10/03/1979EP0004449A2 Bonding process for grinding tools
10/03/1979EP0004383A2 Process for the production of a resist by a magnetic printing process, a dry particulate resist composition obtained therefrom and apparatus for manufacturing a circuit board
08/1979
08/28/1979CA1061227A1 Manifold for fluid distribution and removal
08/28/1979CA1061161A1 Method for making an etch-resistant stencil
08/21/1979US4165252 Method for chemically treating a single side of a workpiece
07/1979
07/24/1979CA1058975A1 Tooling arrangement for end closure scoring
07/11/1979EP0002669A1 Method for the removal of matter from a substrate by selective dry etching and application of this method to the manufacture of conductive patterns
07/10/1979US4160691 Undercutting to provide electroconductivity
07/03/1979CA1057630A1 Metal dissolution process
06/1979
06/26/1979US4159194 Crystallization apparatus and process
06/26/1979CA1057177A1 Apparatus for etching a continuously moving thin metal strip
06/19/1979US4158593 Dissolution of metals utilizing a H2 O2 -sulfuric acid solution catalyzed with selenium compounds
06/19/1979US4158592 Dissolution of metals utilizing a H2 O2 -sulfuric acid solution catalyzed with ketone compounds
06/19/1979CA1056701A1 Selectively stripping tin or tin lead alloys from copper substrates
06/05/1979CA1055823A1 Etching liquid for etching aluminium
05/1979
05/22/1979US4155866 Method of controlling silicon wafer etching rates-utilizing a diazine catalyzed etchant
05/22/1979US4155801 Process for masking sheet metal for chemical milling
05/22/1979CA1054905A1 Method of etching apertures in a thin metal foil
05/08/1979US4153855 Method of making a plate having a pattern of microchannels
05/08/1979CA1053960A1 Process and device for photochemical tooling of objects
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