Patents for C23F 1 - Etching metallic material by chemical means (16,062)
08/1983
08/17/1983EP0086171A1 Rotary mower with driving shaft and method of manufacturing said shaft
08/17/1983EP0085979A1 Process for manufacturing self-supporting metallic screens
08/16/1983US4398994 Formation of packaging material
08/16/1983CA1151959A1 Ultra-black coating due to surface morphology
08/09/1983US4397753 Printed circuits or tabs
08/09/1983US4397708 Etching and etchant removal apparatus
08/02/1983US4396704 Solid state devices produced by organometallic plasma developed resists
08/02/1983US4396475 Process for continuously regenerating ferric chloride solutions
07/1983
07/27/1983EP0084075A1 Method of determining the layer removal end-point during layered substrate development or etching, and apparatus for carrying out this process
07/27/1983EP0084033A1 N-phenylpyrazole derivatives.
07/26/1983US4395305 Chemical etching of aluminum capacitor foil
07/26/1983US4395303 Method of manufacturing thin-walled corrosion resistant metallic objects
07/26/1983US4395302 Metal dissolution process using H2 O2 --H2 SO4 etchant
07/19/1983CA1150064A1 Process and apparatus for recovery of hydrogen-reduced metals, ions and the like at porous hydrophobic catalytic barriers
07/05/1983US4391692 Device for the chemical or electrochemical surface treatment or material in a heated liquid treatment medium, more particularly a strip pickling plant
06/1983
06/29/1983EP0082210A1 Method of selectively dissolving molybdenum in the presence of tungsten
06/21/1983US4389279 Stencils, spraying, shields
06/14/1983US4388276 Printed circuits
06/14/1983US4388140 Apparatus for wet treatment of wafer materials
05/1983
05/31/1983US4385969 By oxidation in presence of calcined activated carbon
05/25/1983EP0079505A1 A method of recovering copper from spent etch solutions
05/25/1983EP0079356A1 A method for chemically stripping platings including palladium and at least one of the metals copper and nickel and a bath intended to be used for the method.
05/17/1983US4383884 Dissolving a layer from an article
05/10/1983US4382454 Inner layer of crystalline boron, outer layer of amorphous boron
05/04/1983EP0078161A2 Materials and methods for plasma etching of oxides and nitrides of silicon
04/1983
04/27/1983EP0077582A1 Composition for stripping tin or tin-lead alloys from substrates by spraying, and process for using it
04/26/1983US4380876 Reticle and method of making the same
04/19/1983CA1144891A1 High capacity etching apparatus
04/05/1983US4379022 Method for maskless chemical machining
03/1983
03/29/1983US4378270 Method of etching circuit boards and recovering copper from the spent etch solutions
03/29/1983CA1143692A1 Bonding process for grinding tools
03/29/1983CA1143632A1 Method and means for treatment of surfaces
03/22/1983US4377409 Filters
03/15/1983US4376672 With a fluorocarbon gas doped with carbon dioxide
03/15/1983CA1142815A1 Self-generating interface layer
03/15/1983CA1142805A1 Magnetic resist printing process
03/08/1983US4376057 Etchant composition and use thereof
03/08/1983US4376009 Limp-stream method for selectively etching integral cathode substrate and support
03/08/1983US4375984 Recovery of gold from bromide etchants
03/02/1983EP0072986A1 Process for the activation of titanium surfaces
03/01/1983US4375390 Thin film techniques for fabricating narrow track ferrite heads
03/01/1983CA1142132A1 Porous alloy electrode having had one component removed
02/1983
02/23/1983EP0072456A1 Stripping solution
02/22/1983US4374744 Stripping solution for tin or tin alloys
02/15/1983CA1141273A1 Formation of packaging material
02/08/1983US4372805 Method for regenerating an etch solution for aluminum and the alloys thereof
02/08/1983US4372804 Method for making multilayer printed wiring board
02/03/1983WO1983000331A1 N-phenylpyrazole derivatives
02/01/1983US4371422 Continuous processing of printed circuit boards
02/01/1983US4370991 Dip treating apparatus
01/1983
01/25/1983US4370197 Process for etching chrome
01/25/1983US4370192 Apparatus for chemical etching of silicon
01/19/1983EP0069974A2 Method of making an electrode foil, especially for low-voltage electrolytic capacitors
01/11/1983US4368245 Photolithography
01/11/1983US4368220 Reactive ion etching
01/05/1983EP0068277A1 Method for passivating aluminum-based metallizations
01/05/1983EP0068077A1 Etching process with vibrationally excited SF6
12/1982
12/29/1982EP0067984A1 Method of etching chromium, and etchant compositions for carrying it out
12/28/1982US4366034 Hard chromium plating process for cobalt-chromium-tungsten alloys
12/21/1982US4364799 Electrochemical treatment
12/21/1982US4364775 Aqueous oxidative scrubber systems for removal of mercury
12/14/1982CA1137396A1 Composition and process for chemically stripping metallic deposits
12/14/1982CA1137395A1 Etching of multiple holes of uniform size
12/08/1982EP0066358A2 Method of leaching a layer from an article
12/07/1982CA1136971A1 Gold etchant composition and method
11/1982
11/30/1982US4361605 Apparatus used in surface treatment and a method of surface treatment using said apparatus
11/25/1982WO1982004072A1 A method for chemically stripping platings including palladium and at least one of the metals copper and nickel and a bath intended to be used for the method
11/23/1982US4360058 Process for the preparation of a surface of a metal wall for the transfer of heat
11/23/1982CA1136026A1 Metal-dissolution solution containing sulfuric acid, hydrogen peroxide and a primary diol
11/17/1982EP0064607A1 Method of etching a recrystallized aluminium foil for electrolytic capacitors
11/09/1982US4358479 Oxidative roughening of foil nodular surface; lamination; etching; electroless metal deposition; adhesion
11/02/1982US4357205 Method for etched and/or galvanic production of ring zones in small diameter holes
11/02/1982US4357196 Apparatus for etching metallic sheet
10/1982
10/13/1982EP0062300A2 Process for making a circuit board
10/12/1982US4353952 Transparent digitizer platen
10/12/1982US4353780 Chemical milling of high tungsten content superalloys
10/12/1982CA1133420A1 Method for producing separating nozzle elements used for separating gaseous or vaporous mixtures
10/05/1982US4352716 Dry etching of copper patterns
09/1982
09/28/1982US4351698 Nickel-iron body covered with a titanium and photoresist layer etched with hydrogen fluoride and ferric chloride
09/21/1982US4350667 Extraction of copper from an ammoniacal copper solution
09/21/1982US4350564 Masking with etch-resistant material, depositing metal electropositive with respect to chromium
09/21/1982US4350553 Acid bath apparatus
09/14/1982US4349411 Etch procedure for aluminum alloy
09/14/1982US4349410 Method of manufacturing a pyroelectric vidicon target, apparatus for practicing the method, and a pyroelectric target manufactured by the method
09/07/1982US4348255 Process for the preparation of an optically transparent and electrically conductive film pattern
08/1982
08/25/1982EP0058214A1 Method for increasing the resistance of a solid material surface against etching
08/24/1982US4345969 Metal etch solution and method
08/24/1982CA1130181A1 Metal stripping composition and method
08/11/1982EP0057334A2 Pretreatment process for galvanized metal prior to its coating with organic powder
08/10/1982US4343875 Method for the etching of silicon substrates and substrate for the execution of the method
07/1982
07/27/1982CA1128423A1 Boron cantilever and method of making the same
07/14/1982EP0055992A2 Composition for a toner of a magnetic resist printing process
07/13/1982US4339529 Etching method using a PVA stencil containing N-methylol acrylamide
07/13/1982US4339528 Etching method using a hardened PVA stencil
07/13/1982US4339297 Apparatus for etching of oxide film on semiconductor wafer
07/13/1982US4339296 Apparatus for adjustably forming pattern in a strip
07/13/1982US4339282 Method and composition for removing aluminide coatings from nickel superalloys
07/07/1982EP0055322A2 Miniature electrical connectors and methods of fabricating them
07/06/1982US4338157 Enhanced precision of etching and quality of product
06/1982
06/30/1982EP0054663A1 Method for forming a copper based metal pattern