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| Number | Title | Issue Date |
| 7267757 | Magnetic head utilizing a CoNiFe alloy with 60-80 weight percent Fe and method for production therefor At least one of lower and upper magnetic cores is composed of magnetic films each of which contains two or more elements of Co, Ni, and Fe, which are formed by electroplating in a plating bath with pH 2 or less, and which have a saturation magnetic flux density of 2... | 09/11/2007 |
| 7179360 | Soft magnetic film having improved saturated magnetic flux density, magnetic head using the same, and manufacturing method therefore A lower magnetic pole layer and/or an upper magnetic pole layer are formed of a CoFeα alloy in which the component ratio X of Co is 8 to 48 mass %, the component ratio Y of Fe is 50 to 90 mass %, the component ratio Z of the element α (the element α is at least o... | 02/20/2007 |
| 7156972 | Method for controlling the ferric ion content of a plating bath containing iron A system and method for reducing ferric ion content in a plating solution by exposing hydrogen to an electrode in a plating solution for reducing a ferric ion content in the plating solution. ... | 01/02/2007 |
| 7144489 | Photochemical reduction of Fe(III) for electroless or electrodeposition of iron alloys A method of photochemically reducing iron(III) species in an iron or iron alloy plating solution by adding an additive to the electroplating solution; contacting the additive with iron(III) species to form an iron(III)-additive species; and irradiating the electropl... | 12/05/2006 |
| 6974767 | Chemical solution for electroplating a copper-zinc alloy thin film A method of fabricating a semiconductor device, having a Cu—Zn alloy thin film (30) formed on a Cu surface (20) by electroplating the Cu surface (20) in a unique chemical solution containing salts of zinc (Zn) and copper (Cu), their complexing... | 12/13/2005 |
| 6919014 | Satin-finished nickel or nickel alloy coating In order to achieve an even satin-finished nickel or nickel alloy coating an acid nickel or nickel alloy electroplating bath is proposed which contains a sulfosuccinic acid compound of the general formula I additional to at least one quaternary ammonium compound, wh... | 07/19/2005 |
| 6911068 | Plating bath and method for depositing a metal layer on a substrate A metal plating bath containing organic compounds that inhibit or retard the consumption of plating bath additives. The additives are chemical compounds that improve the brightness of the plated metal, the physical properties of the plated metal especially with resp... | 06/28/2005 |
| 6855240 | CoFe alloy film and process of making same A cobalt-iron alloy film having saturation magnetization of at least about 2.30 Telsa. The film alloy includes about 55 wt % to about 75 wt. % iron and the remainder cobalt. The film is made by a process in which the film is electrodeposited from an aqueous medium w... | 02/15/2005 |
| 6344128 | Aqueous electroplating bath Described is an aqueous nickel-iron alloy electroplating bath comprising 260-280 grams/liter nickel chloride; 10-15 grams/liter ferrous ammonium sulfate; 0.8-1.9 grams/liter acid saccharin and 0.4-1.9 grams/liter of naphalene trisulfonic acid. Also, an aq... | 02/05/2002 |
| 6183881 | Magnetic thin film and method for forming the same A magnetic thin film forming method forms a magnetic thin film on a conductive film by electroplating using a plating bath containing Ni ions, Fe ions, Mo ions and an organic acid. A concentration of the organic acid in the plating bath is 3-20 times a co... | 02/06/2001 |
| 6179985 | Metal alloy fluoroborate electroplating baths The use of alkali metal, alkaline earth metal, ammonium and substituted ammonium salts of alkyl and alkanol sulfonic acids as additives in pure metal and metal alloy fluoroborate electroplating baths has a number of unexpected benefits including wider use... | 01/30/2001 |
| 6117301 | Electrolyte for the galvanic deposition of low-stress, crack-resistant ruthenium layers An electrolyte for the galvanic deposition of stress-relieved, crack-resistant ruthenium layers containing ruthenium in complexed form. The additive for the electrolyte is pyridine or an N-alkylated pyridinium salts of formula I ##STR1## wherein... | 09/12/2000 |
| 6045682 | Ductility agents for nickel-tungsten alloys A tungsten alloy electroplating bath. Highly ductile tungsten alloy deposits are facilitated using a sulfur co-depositing ductility additive such as: ##STR1## wherein R1 is selected from the group consisting of H1, alkyl, a... | 04/04/2000 |
| 5759243 | Methods and electrolyte compositions for electrodepositing metal-carbon alloys Methods for electrodepositing a metal-carbon coating on a substrate comprng immersing the substrate in an aqueous electrolyte, and passing a sufficient current through the electrolyte to effect electrolyte deposition of a metal-carbon alloy on the substr... | 06/02/1998 |
| 5683568 | Electroplating bath for nickel-iron alloys and method An improved electroplating bath, complexing agent, product and method for producing nickel-rich nickel-iron alloys, such as Permalloy, having about 22% iron and 78% nickel. The improved electroplating bath contains a small amount of an organic amine compl... | 11/04/1997 |
| 5672262 | Methods and electrolyte compositions for electrodepositing metal-carbon alloys Methods for electrodepositing a metal-carbon coating on a substrate comprng immersing the substrate in an aqueous electrolyte, and passing a sufficient current through the electrolyte to effect electrolyte deposition of a metal-carbon alloy on the substr... | 09/30/1997 |
| 5651873 | Electroplating solution for forming Pb-Sn alloy bump electrodes on semiconductor wafer surface An electroplating solution (A), comprises an aqueous solution consisting essentially of lead phenolsulfonate: 1 to 250 g/liter in terms of Pb content; tin phenolsulfonate: 0.1 to 250 g/liter in terms of Sn content; phenolsulfonic acid: 20 to 300 g/liter; ... | 07/29/1997 |
| 5620583 | Platinum plating bath Crack-free, bright platinum layers with thicknesses of more than 100 μm are obtained from electroplating baths which contain 5 to 30 g/l platinum as amminesulphamato complex and 20 to 400 g of a strong acid if the content of free amidosulphuric acid amou... | 04/15/1997 |
| 5575899 | Electrolytic zinc-nickel alloy plating solution and a method of the plating using the same The present invention relates to an electrolytic zinc-nickel alloy plating solution, which comprises a plating solution containing zinc chloride, nickel chloride, and potassium chloride; polyethylene glycol having a molecular weight of 400-800 as a nonion... | 11/19/1996 |
| 5549810 | Bath for the electrodeposition of palladium-silver alloys Aqueous ammoniacal baths containing polyamines and mercaptoalkane carboxylic acids and/or mercaptoalkane sulfonic acids for the electrodeposition of palladium-silver alloys are provided, which are particularly suited as electrical contacts. The baths have... | 08/27/1996 |
| 5445724 | Phosphonium salts and use thereof as brighteners for aqueous acidic electronickelization baths Nickelized shaped articles are produced by electrodeposition of nickel from aqueous acidic baths containing as essential constituents one or more nickel salts, one or more inorganic acids and one or more brighteners by a procedure in which the brighteners... | 08/29/1995 |
| 5342504 | Palladium-nickel alloy plating solution A novel palladium-nickel alloy plating solution provides a uniform electrodeposited film with excellent gloss at a high electric current density. A palladium-nickel alloy plating solution comprises a water-soluble palladium salt, a water-soluble nickel sa... | 08/30/1994 |
| 4801368 | Ni/Sn cathode having reduced hydrogen overvoltage Disclosed is a cathode comprising an active layer composed of a nickel/tin alloy having a nickel content of 25 to 99% by weight, which is formed on the surface of an electrically conductive electrode substrate. When this cathode is used for generating hyd... | 01/31/1989 |
| 4764262 | High quality, bright nickel plating An improved process and composition for the preparation of nickel or nickel alloy electrodeposits is provided. The process involves passing current from a anode to a cathode through an aqueous acidic electroplating solution containing zinc ions as impurit... | 08/16/1988 |
| 4756816 | Electrodeposition of high moment cobalt iron Ferromagnetic cobalt-iron (CoFe) is electrodeposited on a conductive substrate to form a CoFe thin film. The wet electrodeposition process disclosed involves use of a relatively low toxic plating bath solution in which the constituents cobalt and iron are... | 07/12/1988 |
| 4715935 | Palladium and palladium alloy plating The difficulties associated with electroplating palladium metal or alloy deposits from palladium diammino dichloride, palladium diamino dinitrite and palladium triammino sulphite baths can be avoided by plating from palladium baths containing oxalate. The... | 12/29/1987 |
| 4661216 | Electrodepositing CoNiFe alloys for thin film heads A bath for electroplating a high cobalt magnetic alloy material suitable for fabrication of thin film heads. The ternary cobalt-nickel-iron (CoNiFe) alloy electroplating bath composition produces a high cobalt magnetic thin film having high saturation mag... | 04/28/1987 |
| 4613388 | Superplastic alloys formed by electrodeposition There are provided superplastic alloys formed by electrodeposition of the alloy onto a cathode from an electrolyte containing a first metal ion, which is iron, nickel or cobalt, and a second constituent different from the first, which is iron, nickel, cob... | 09/23/1986 |
| 4565611 | Aqueous electrolytes and method for electrodepositing nickel-cobalt alloys A process and compositions for the electrodeposition of hard, tarnish-resistant, white shining nickel- and cobalt-containing coatings using aqueous acidic baths containing metal ions and boric acid and also, as shine promotor, an aliphatic aldehyde and an... | 01/21/1986 |
| 4549942 | Process for electrodepositing composite nickel layers An improved process for producing a composite nickel-containing electroplate on a substrate including an inner nickel-containing layer, of an average sulfur content of less than about 0.03 percent by weight, an intermediate nickel-containing layer of an a... | 10/29/1985 |
| 4525248 | Process for the electrolytic deposition of layers of nickel alloys A process of electrolytic deposition of layers of nickel alloys, especially nickel alloyed with molybdenum, with tungsten, and with phosphorus, from an electrolyte on the basis of sulphosalicylate. The object to be coated is degreased, rinsed with activat... | 06/25/1985 |
| 4465563 | Electrodeposition of palladium-silver alloys Aqueous electroplating solutions for the electrodeposition of palladium-silver alloys comprising a soluble palladium compound, a soluble silver compound and water soluble organo sulfonic acid in an amount sufficient to maintain the palladium and silver co... | 08/14/1984 |
| 4450051 | Bright nickel-iron alloy electroplating bath and process An aqueous bath and process suitable for the electrodeposition of bright, high-leveling nickel-iron alloy deposits on a conductive substrate comprising controlled, effective amounts of nickel ions, iron ions, an iron solubilizing agent, a buffering agent,... | 05/22/1984 |
| 4440609 | Method of electrodepositing a low coercine force, corrosion-resistant alloy of nickel, iron and boron The present invention deals with alloys consisting essentially of the elements nickel, iron and boron. Boron is present at from 0.1 to 2.0% by weight; iron is present from 17 to 27% by weight and the balance is nickel. The alloy has high resistance to cor... | 04/03/1984 |
| 4434030 | Bath for the electrodeposition of bright nickel iron alloy A bath for electrodeposition of a bright nickel-iron electrodeposit comprises conventional brighteners and complexing agents together with a novel antipitting agent comprising a hydroxyethylated oligoamide. The bath is suitable for use in electronics, the... | 02/28/1984 |
| 4430171 | Electroplating baths for nickel, iron, cobalt and alloys thereof An aqueous electroplating bath for nickel, cobalt, nickel-cobalt, nickel-iron, cobalt-iron or nickel-cobalt-iron is described which contains, as a brightening agent, a quaternary amine sulfobetaine of the formula ##STR1## wherein N+ i... | 02/07/1984 |
| 4430172 | Method of increasing corrosion resistance in galvanically deposited palladium/nickel coatings In a method of electrodepositing a palladium/nickel alloy coating upon a substrate wherein the coating is plated onto the substrate by electrodeposition from a bath containing 5 to 30 g per liter of palladium and 5 to 30 g per liter of nickel and having a... | 02/07/1984 |
| 4428802 | Palladium-nickel alloy electroplating and solutions therefor A palladium-nickel alloy plating solutions formed from tetramminepalladous chloride is provided. The tetramminepalladous chloride is soluble in aqueous ammonia plating solution and is also water soluble. This permits replenishment of the palladium in a pa... | 01/31/1984 |
| 4379738 | Electroplating zinc An electroplating process is described for plating various metals and alloys in which certain organic substances are added to the plating solution. This permits high plating rates with excellent plating results, including smooth bright finishes, freedom f... | 04/12/1983 |
| 4377448 | Electrolytic gold plating A gold electroplating bath comprising heterocyclic organic compounds such as lactones, lactams, cyclic sulfate esters, cyclic imides and cyclic oxazolinones.... | 03/22/1983 |
