| Patents for C23F 1 - Etching metallic material by chemical means (16,062) |
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| 01/31/1990 | EP0353084A2 Stabilized hydrogen peroxide compositions |
| 01/31/1990 | EP0353083A2 Hydrogen peroxide compositions containing a substituted oxybenzene compound |
| 01/31/1990 | EP0353082A2 Hydrogen peroxide compositions containing a substituted aminobenzaldehyde |
| 01/31/1990 | CN1039203A Process and equipment for micro-pattern forming on roll surface, metal sheets for pressworking prepared by the roll, and methods of preparing same |
| 01/30/1990 | US4897166 Surfactant and a perfluoroalkyl-containing ester of phosphoric acid |
| 01/30/1990 | US4897151 Method for fabricating a dichroic parabolic lens reflector |
| 01/25/1990 | WO1990000630A1 Fe-Mn-Al-C ALLOYS AND THEIR TREATMENT |
| 01/24/1990 | EP0351772A2 Stabilized hydrogen peroxide |
| 01/24/1990 | EP0351555A2 Recording material polymerisable by radiation and process for the manufacture of relief images |
| 01/24/1990 | CN1039075A Pattern transplanting and engraving process of inside wall of die cavity |
| 01/23/1990 | US4895735 Thermal energy, vapor deposition |
| 01/23/1990 | US4895627 Ion exchange membrane |
| 01/23/1990 | US4895617 Amine oxide surfactant |
| 01/23/1990 | US4895099 Device for sequential spray application of chemical solutions used in the preparation of circuit board inner layers |
| 01/16/1990 | US4894130 Process for electrolytically detaching a protective coating from a base metal superalloy |
| 01/09/1990 | US4892776 Circuit board material and electroplating bath for the production thereof |
| 01/08/1990 | EP0331684A4 Process for fabricating multilayer circuit boards. |
| 01/02/1990 | US4890669 For transferring heat between a liquid refrigerant |
| 12/26/1989 | US4889590 Semiconductor pressure sensor means and method |
| 12/20/1989 | EP0346668A1 Solutions of perfluorinated sulphonic acids |
| 12/19/1989 | US4888090 Etchant for aluminum containing surfaces and method |
| 12/13/1989 | EP0345924A2 Testing IC devices |
| 12/13/1989 | CN1037932A Method for recovering molybdenum sheet |
| 12/12/1989 | US4886552 Electroconductive cleaning solution, oxidation; measuring potential difference |
| 12/07/1989 | DE3818800A1 Process for introducing profiled patterns (profile patterns) onto or into surfaces whose cross-sections are parts of a circle (semicircle) or another geometrical figure, by using the single-stage or multi-stage photo-etching technique (ProMus process) |
| 12/07/1989 | DE3817543A1 Maschine zum behandeln von gegenstaenden mit einer behandlungsfluessigkeit Machine for treating articles with a behandlungsfluessigkeit |
| 12/07/1989 | DE3817542A1 Maschine zum behandeln von gegenstaenden mit einer behandlungsfluessigkeit Machine for treating articles with a behandlungsfluessigkeit |
| 11/30/1989 | WO1989011779A1 Machine for treating objects with a treating liquid |
| 11/30/1989 | WO1989011777A1 Machine for treating objects with a treating liquid |
| 11/23/1989 | EP0342669A2 Method for preparing thin copper foil-clad substrate for circuit boards |
| 11/14/1989 | US4880495 Regeneration of copper etch bath |
| 11/02/1989 | EP0339307A2 Process for production of plating and etching resists |
| 10/25/1989 | EP0338816A2 Process and equipment for micropattern forming on roll surface, metal sheets for pressworking prepared by the roll and methods of preparing same |
| 10/25/1989 | EP0338625A1 Method of manufacturing a shear plate for a dry-shaver |
| 10/25/1989 | EP0338114A1 Method for manufacturing aircraft control surfaces |
| 10/24/1989 | US4875973 Hydrogen peroxide compositions containing a substituted aminobenzaldehyde |
| 10/24/1989 | US4875972 For etching printed circuit boards |
| 10/19/1989 | WO1989010048A1 Apparatus for processing planar printed circuit boards |
| 10/12/1989 | DE3811068A1 Method for one-sided processing of bodies of planar extent, in particular of semiconductor wafers, and device for carrying out the method |
| 10/10/1989 | US4872946 Method of manufacturing supports for lithographic printing plate |
| 10/10/1989 | US4872921 Sheets of aluminium alloy containing magnesium, suitable for producing bodies of cans by drawing and ironing, and method of obtaining said sheets |
| 09/26/1989 | US4869778 Method of forming a patterned aluminum layer and article |
| 09/26/1989 | CA1259947A1 Laser-enhanced jet-plating and jet-etching: high speed maskless patterning method |
| 09/20/1989 | EP0332833A1 Improved method for forming local interconnects using chlorine bearing agents |
| 09/13/1989 | EP0331684A1 Process for fabricating multilayer circuit boards |
| 09/12/1989 | US4865954 Process for formation of metallic relief |
| 09/12/1989 | CA1259239A1 Photoetching process for making surgical needles |
| 09/07/1989 | DE3806287A1 Etching process for patterning a multilayer metallisation |
| 09/06/1989 | EP0331022A2 Radiation induced pattern deposition |
| 09/05/1989 | US4863559 Method for forming local interconnects using chlorine bearing agents |
| 09/05/1989 | US4863555 Tube flush etching, rinsing and drying apparatus and method |
| 08/31/1989 | DE3805076A1 Etching system |
| 08/29/1989 | US4861438 Method of making patterns |
| 08/29/1989 | US4861422 Method of manufacturing shadow mask and apparatus |
| 08/23/1989 | EP0328907A1 Apparatus for etching work pieces |
| 08/22/1989 | US4859281 Etching of copper and copper bearing alloys |
| 08/22/1989 | US4859276 Tube flush etching, rinsing, drying, inspecting and plugging subsystem and method in a tube manufacturing system |
| 08/16/1989 | CN1034762A Rapid and deep chemical etching on roller (rolling wheel) and steel mould |
| 08/02/1989 | EP0326516A2 Method of making patterns |
| 08/01/1989 | US4852804 Machine for treating objects with a treating liquid |
| 08/01/1989 | US4852595 Machine for etching objects |
| 07/27/1989 | DE3900835A1 Rotatable manual device for the engraving and machining of printed electronic circuits |
| 07/26/1989 | EP0325097A1 Chemical polishing bath and method for aluminum alloys |
| 07/25/1989 | US4851077 Chemical milling of lithium aluminum alloy |
| 07/18/1989 | US4849124 Halogen compound |
| 07/18/1989 | US4849069 Of submicron cross-sectional dimensions, semiconductors |
| 07/18/1989 | US4849066 Method for selectively etching integral cathode substrate and support utilizing increased etchant turbulence |
| 07/13/1989 | WO1989006172A1 Improved copper etchant compositions |
| 07/12/1989 | EP0323467A1 Installation for surface treatment of continuous-flow strip, in particular degreasing installation. |
| 07/11/1989 | US4846918 Copper etching process and product with controlled nitrous acid reaction |
| 07/11/1989 | US4846267 Nucleation site pits on aluminum alloy surface |
| 07/11/1989 | CA1257073A1 Stabilisation of aqueous acid solutions including hydrogen peroxide and metal ions |
| 07/04/1989 | CA1256819A1 Process for reconditioning a used ammoniacal copper etching solution containing copper solute |
| 06/27/1989 | US4842629 Method for producing buried regions of raised refractive index in a glass member by ion exchange |
| 06/21/1989 | EP0320868A2 Thin-film releasing apparatus |
| 06/13/1989 | US4838989 Selective radiation of coating; dissolving reaction product |
| 06/13/1989 | CA1255815A1 Semiconductor etching apparatus with magnetic array and vertical shield |
| 06/13/1989 | CA1255618A1 Solderable palladium-nickel coatings |
| 06/08/1989 | DE3740381A1 Aetzverfahren fuer nickel Etching process for nickel |
| 06/07/1989 | EP0318886A1 Process for the electrolytic stripping of a protective coating, having a high content of chromium and nickel and/or cobalt, from the substrate of an object made of a superalloy |
| 06/07/1989 | EP0318724A1 Process for chemically stripping a high chromic surface coating from a work piece made from a nickel or cobalt based superalloy |
| 06/06/1989 | US4836883 Quality control testing |
| 06/06/1989 | CA1255193A1 Vlsi chemical reactor |
| 06/01/1989 | WO1989004883A1 Process for etching nickel |
| 05/24/1989 | CN1033077A Method for recovery of metals from chloride solutions |
| 05/24/1989 | CN1004315B Etching of back electrode for amorphous silicon (a-si) solar battery |
| 05/23/1989 | US4832790 Method of making metal molds and dies |
| 05/18/1989 | DE3738023A1 Miniature etching system with regeneration unit and rinsing unit for etching copper surfaces and electrolytic copper recovery |
| 05/18/1989 | DE3738022A1 Process for regenerating alkaline etchants and apparatus for carrying out the process |
| 05/17/1989 | EP0316296A2 Holder for disc-like articles, and device for etching silicon chips with such a holder |
| 05/17/1989 | EP0315891A1 Bath solutions and processes for stripping lead/tin, lead or tin layers from copper or nickel surfaces |
| 05/17/1989 | EP0315677A1 Etching of copper and copper bearing alloys |
| 05/09/1989 | US4828661 Process for recovery of metals from metal/plastic waste |
| 05/03/1989 | CN1032715A Laser-chemical etching of back electrode for amorphous silicon (a-si) solar battery |
| 05/02/1989 | US4826605 Regenerating a caustic etch solution |
| 05/02/1989 | CA1253630A1 Multilayer circuit board |
| 04/25/1989 | US4824073 Integrated, microminiature electric to fluidic valve |
| 04/19/1989 | EP0311774A1 Method of coating a metal part with a pealable mask |
| 04/12/1989 | EP0310736A2 Method of making an electrode foil, especially for low voltage electrolytic capacitors |
| 04/11/1989 | US4820396 Rack or transport tool for the manufacturing of printed wired boards |