IAg

IAg or Immersion Silver Plating is a surface plating technology used for Printed Circuit Boards.

Contents

1 Description
- 1.1 Advantages of IAg
- 1.2 Disadvantages of IAg
2 Specifications

Description

It consists of a thin immersion silver plating over the copper traces.

Advantages of IAg

Excellent surface planarity (compared to e.g. HASL)
Low High Frequency Signal loss due to skin effect

Disadvantages of IAg

Rapid degradation of surface due to oxidation or contamination (with e.g. sulfur or chlorine)

Specifications

IPC Standard: IPC-4553