| Patents for C23F 1 - Etching metallic material by chemical means (16,062) |
|---|
| 10/30/1990 | US4966832 Method of treating inner mold surface |
| 10/30/1990 | US4966647 Substrate sandwiched between conveyor table and protective covering belt |
| 10/26/1990 | CA2015307A1 Method for making patterned thin film |
| 10/24/1990 | EP0393270A1 Process for etching copper with ammoniacal etchant solution and reconditioning the used etchant solution |
| 10/23/1990 | US4964945 Lift off patterning process on a flexible substrate |
| 10/23/1990 | US4964920 Aqueous solution of nitric acid, ferric nitrate and anthra-nilic acid |
| 10/23/1990 | US4964365 Immersion process machine |
| 10/18/1990 | WO1990012071A1 Composition and method for stripping tin or tin-lead alloy from copper surfaces |
| 10/16/1990 | US4963283 Containing water and acidic phosphorus compound |
| 10/16/1990 | US4963225 Depositing conductive material in opening of dielectric layer, depositing second dielectric layer, removing first layer so conductive material projects beyond it |
| 10/09/1990 | US4961817 Thin-film releasing apparatus |
| 10/03/1990 | EP0221179B1 Needlecraft with metallic substrate |
| 10/02/1990 | US4960511 Apparatus for depleted chemical milling solutions |
| 09/26/1990 | EP0389096A1 Method of domain refinement of oriented silicon steel |
| 09/26/1990 | EP0388933A2 Alloy bonded indium bumps and methods of processing same |
| 09/26/1990 | EP0388576A1 Metallic implant |
| 09/25/1990 | US4959275 Process and equipment for micro-pattern forming on roll surface, metal sheets for pressworking prepared by the roll, and method of preparing same |
| 09/25/1990 | US4959120 Films with graduated optical density, packages for microwave ovens |
| 09/25/1990 | CA1274455A1 Copper etching process and solution |
| 09/23/1990 | CA2011106A1 Method of domain refinement of oriented silicon steel by using flux-printing |
| 09/20/1990 | WO1990010730A1 Sulfuric acid composition having low surface tension |
| 09/18/1990 | US4957653 Composition containing alkane sulfonic acid and ferric nitrate for stripping tin or tin-lead alloy from copper surfaces, and method for stripping tin or tin-lead alloy |
| 09/18/1990 | US4957601 Method of forming an array of apertures in an aluminum foil |
| 09/18/1990 | US4957583 Apparatus for etching patterned substrates |
| 09/12/1990 | EP0387057A1 Surface-treating agents for copper and copper alloy |
| 09/11/1990 | US4956201 Method of creating pasageways in niobium by CVD of niobium over sintered vanadium which is thereafter leached |
| 08/28/1990 | US4952275 Selective; nonaqueous solution of dmso and halocarbon |
| 08/22/1990 | EP0382944A2 Method and structure for preventing wet etchant penetration at the interface between a resist mask and an underlying metal layer |
| 08/21/1990 | US4950359 Process for removing a coating containing niobium from a substrate |
| 08/08/1990 | CN1044502A Die space surface processing method and equipment |
| 08/08/1990 | CN1009142B Method for making shadow masks |
| 08/07/1990 | US4946711 Peelable mask resistant to strong acid and strong base etchants |
| 07/31/1990 | US4945004 Base material for an aluminum offset printing plate |
| 07/31/1990 | US4944851 Electrolytic method for regenerating tin or tin-lead alloy stripping compositions |
| 07/31/1990 | US4944807 Without damaging core |
| 07/24/1990 | US4943540 Semiconductors, maskign, patterns, ammonium hydroxide cleaning, hydrofluoric acid |
| 07/24/1990 | US4943346 Interconnection wiring |
| 07/18/1990 | EP0378345A2 Negative-pressure type magnetic head slider, and method of producing the same |
| 07/10/1990 | US4940510 Method of etching in the presence of positive photoresist |
| 07/10/1990 | US4940337 Apparatus for separating heavy metals from a ferric chloride waste fluid |
| 07/04/1990 | EP0376438A2 Method for selectively etching aluminum gallium arsenide |
| 07/03/1990 | US4938838 With hydrogen peroxide |
| 07/03/1990 | CA1271264A1 Adhesion promoting process for fabricating multilayer circuit boards |
| 07/03/1990 | CA1271140A1 Integrated, microminiature electric-to-fluidic valve and pressure/flow regulator |
| 06/28/1990 | WO1990006884A1 Masking compositions and method for applying the same |
| 06/27/1990 | CN1043349A Metal surface refinement using dense alumina-based media |
| 06/26/1990 | US4936955 Hydrofluoric acid reprocessing for semiconductor standards |
| 06/21/1990 | DE3842159A1 Method for fabricating printed circuits |
| 06/19/1990 | US4935310 Copper foil for a printed circuit and a method for the production thereof |
| 06/14/1990 | WO1990006381A1 Perforated metal product obtained by etching, process for forming starting material therefor and etching process |
| 06/13/1990 | DE3841537A1 Device for the chemical treatment of holes |
| 06/09/1990 | CA2002736A1 Patterning process and product |
| 06/06/1990 | EP0371924A2 Process for making a pattern |
| 06/05/1990 | USH788 Method for bonding plastic to metal |
| 06/05/1990 | CA1269837A1 Needlecraft with metallic substrate |
| 05/31/1990 | WO1990005797A1 Installation for etching objects |
| 05/31/1990 | WO1990005796A1 Installation for etching objects |
| 05/29/1990 | US4930001 Alloy bonded indium bumps and methods of processing same |
| 05/29/1990 | US4928717 Equipment for surface treatment of continuously, running strips particularly pickling equipment |
| 05/29/1990 | CA2003933A1 Method of making a pattern |
| 05/29/1990 | CA1269639A1 Multi-cell electrolytic tank with inlet and outlet partitions |
| 05/28/1990 | CA2003950A1 Metal screen material obtained by photoetching, process for forming starting material therefor and etching process |
| 05/23/1990 | EP0192656B1 Interferometric methods for device fabrication |
| 05/22/1990 | US4927700 Copper etching process and product with controlled nitrous acid reaction |
| 05/22/1990 | US4927492 Etching process for zirconium metallic objects |
| 05/22/1990 | CA1269491A1 Recovery of ammoniacal copper with organogels |
| 05/16/1990 | CN1042195A Stainless steel general colour corrosion imaging technique |
| 05/15/1990 | CA1268988A1 Industrial exhaust ventilation system |
| 05/08/1990 | US4922938 Apparatus for single side spray processing of printed circuit boards |
| 05/02/1990 | CN1007828B Stress relief of single crystal superalloy articles |
| 05/01/1990 | US4921571 Alkane sulfonic acid, inorganic nitrate, inhibitor, printed circuit boards |
| 05/01/1990 | US4921565 Parts orbiter for chem-milling vat |
| 04/24/1990 | US4920038 Printed circuit manufacture employing a radiation cross-linkable photo-polymer system |
| 04/24/1990 | US4919752 Using nitric acid and inhibitors such as ethylene oxide-propylene oxide copolymer,polyoxyethylene glycol, polyols |
| 04/24/1990 | US4919716 Method for dissolution of metal |
| 04/19/1990 | DE3928312A1 Racing yacht sails - consisting of sections having skin of polyethylene foil, skin carrying strands of stretch resistant aramid |
| 04/18/1990 | CN1041401A Process for preparing tin base plating liquor and application thereof |
| 04/17/1990 | US4917758 Etching whole surface, controlling variations in thickness reduction |
| 04/11/1990 | EP0363099A1 Fine working method of crystalline material |
| 04/10/1990 | US4915782 Aluminum lithium etchant |
| 04/10/1990 | US4915781 Stabilized hydrogen peroxide compositions |
| 04/10/1990 | US4915780 Process for making an element for microwave heating |
| 04/10/1990 | US4915776 Process for etching copper with ammoniacal etchant solution and reconditioning the used etchant solution |
| 04/05/1990 | WO1990003454A1 Process and installation for etching copper-containing work pieces |
| 04/04/1990 | EP0361192A2 Method of making circuit boards |
| 03/28/1990 | EP0360744A2 Process for making electrically conductive patterns |
| 03/22/1990 | DE3832299A1 Method for producing a three-dimensional conductor moulding having a recessed conductor-track layout |
| 03/07/1990 | CN1040184A Stabilized hydrogen peroxide compositions |
| 03/07/1990 | CN1040183A Hydrogen peroxide compositions contg. substd. oxybenzene compound |
| 02/27/1990 | US4904340 Laser-assisted liquid-phase etching of copper conductors |
| 02/27/1990 | US4904339 Vertical spray etch reactor and method |
| 02/27/1990 | US4903717 Support for slice-shaped articles and device for etching silicon wafers with such a support |
| 02/21/1990 | CN1039775A Hydrogen peroxide compositions containing a substituted aminobenzaldehyde |
| 02/20/1990 | US4902607 Metal-etching process |
| 02/20/1990 | US4902388 Method for electroplating nickel onto titanium alloys |
| 02/14/1990 | EP0354669A2 Dry etching apparatus with anhydrous hydrogen fluoride gas generator |
| 02/14/1990 | EP0354463A2 Dry etching method for refractory metals and compounds thereof |
| 02/14/1990 | EP0354266A1 Etching process and apparatus for work pieces composed at least partly of metals |
| 02/13/1990 | US4900398 Chemical milling of titanium |
| 02/07/1990 | EP0353593A2 Characteristics control method for aqueous solution |