Amp LLC

Lewis Brian Lerner

Thomas Francis Davis

Disclosed are methods and electrolytes for the electrodeposition of a gold alloy containing 0.05 to 0.4 per cent by weight of cobalt. The electrolytes comprise aqueous acidic solutions containing nitrilotriacetic acid.

Method, electrolyte and additive for electroplating a cobalt brightened

A method and electrolyte for electrodepositing a corrosion -- resistant, soft and ductile tin -- nickel alloy. A typical electrolyte is an aqueous solution of tin salts, nickel salts, thiourea, sodium hypophosphite, hydrochloric acid, and ammonium chloride and has a pH of 0.7 to 1.5.

Tin-nickel plating bath

A plating process system has been disclosed which provides for a strike bath, a low current density plating bath or a high speed plating bath, the last for production of electroplating deposits with current densities in excess of 200 ASF; additionally, the strike bath may be used with the low current density plating bath as a combination, or as another combination, the strike bath is with the high speed, high current plating bath; the advantages are a compatible strike and plating bath; nonstaining deposits; buffered pH operations; neutral pH; no free cyanide in bath; elimination of drag-in problems from a strike bath vessel to plating bath vessel; reduced drag-out from this bath; higher current density capability and higher current density for lower total initial concentration in solution when compared to commercial baths presently available; the deposits are especially useful for high purity integrated circuits and provide an alternate system to gold for microelectronic circuits without any increased operation requirements.

Silver plating

A process, an electrolyte for electrodepositing tin-lead alloys from an aqueous bath, and a salt composition as a solid material adapted for mixing with aqueous solution to effect plating of tin-lead alloys from an electrolyzed bath solution; the bath used is an aqueous solution comprising tin metal salt, such as in the form of stannous pyrophosphate, potassium pyrophosphate, sodium potassium tartrate, and lead as lead pyrophosphate, lead chloride, lead tartrate, or lead acetate; the pH of the bath is from 8.0-9.0 and up to 10.0 and the operating temperature is from 75 to 150.degree.F, the bath is operated with agitation and the anodes are preferably solid tin-lead anodes.

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Linglestown, PA, United States of America

Lewis Brian Lerner