| abstract |
Electroless chemical prodn. of a structured metal layer on a substrate of glass, quartz or ceramic is claimed, in which a Pd layer is produced before metallising. The novelty is that a structured base layer contg. SnO2 is produced on the substrate, and before prodn. of the Pd layer, the substrate surface is treated with a reductant converting SnO2 into a divalent Sn-salt. The base layer is produced as an In-Sn layer Cl, or Cl-contg. medium is used as reductant, to reduce SnO2 to SnCl2. The substrate is treated in a gas atmosphere, esp. Cl gas or HCl vapours, esp. in a liquid bath, esp. HCl bath. A Ni or Cu layer is produced. USE/ADVANTAGE Used in displays as contact layer on transparent conducting In-Sn layers on glass. |