摘要:
A process for electroplating a substrate by coating the substrate with a coating of carbonaceous particles. The process is characterized by a pretreatment sequence that includes contact of the substrate with a single aqueous solution containing a reducing agent and a polyelectrolyte. The use of the single solution decreases the incidence of interconnect defects in printed circuit manufacture.
摘要:
Disclosed are methods for determining the quantity of lcveler in an electroplating bath in the presence of other organic additives, such as accelerators, brighteners and suppressors. Such methods are fast, work over a broad concentration range of components and can be performed in real-time.
摘要:
A metal plating bath and method for plating a metal on a substrate. The metal plating bath contains hydroxylamines that inhibit the consumption of additive bath components to improve the efficiency of metal plating processes. The additive bath components are added to metal plating baths to improve brighteness of plated metal as well as the micro-throwing and macro-throwing power of the bath. In addition to brighteners, the additive bath components may include levelers, suppressors, hardeners, and the like. The hydroxylamines that inhibit additive consumption may be employed in metal plating baths for plating copper, gold, silver, platinum, palladium, cobalt, cadmium, nickel, bismuth, indium, tin, rhodium, iridium, ruthenium and alloys thereof.