Biocompatible & corrosion resistant PCBs with PureGold conductor paths

In many in vivo applications, it is important that there is no contamination in the form of metal ions or corrosion caused by the electronics.

All standard processes for printed circuit board manufacturing are based on copper-clad plastic as the substrate. In conventional methods, the copper of the outer layers is usually plated with nickel and gold. However, the capillary effect means liquids can penetrate the interface with the base material, causing nickel and copper to come away and leading to corrosion.

ANDUS is therefore taking an entirely new approach by replacing the conventional copper conductor paths with the PureGold versions. The conductor tracks of the layout are applied as a thin layer of pure gold onto the plastic substrate. Thus any contamination or corrosion is securely prevented.

PCB with PureGold surface Application 1 Application under corrosive ambient conditions
    Application under corrosive ambient conditions:
Sensorplates for measuring the local current density
and temperature distribution inside a fuel cell stack

  Application 2 Application in medical laboratory diagnostics
    Application in medical laboratory diagnostics:
Parallel arrays of PureGold electrodes analyse all
sample liquids of a microwell plate simultaneously