Stable nanoparticles for electroless plating

摘要

Stable tin-free palladium catalysts are used to metalize through-holes of printed circuit boards. A stabilizer is included in the catalyst formulation which prevents precipitation and agglomeration of the palladium.

主权项

1. A method comprising:
a) providing a substrate with a plurality of through-holes; b) applying a conditioner comprising one or more cationic surfactants to the through-holes; c) applying a composition comprising glutathione and palladium to the through-holes; and d) depositing a metal on walls of the through-holes with an electroless metal bath.