Multi-layer ceramic capacitors store energy in electronic devices in the form of an electrostatic field. Typically, they consists of two coated conducting plates separated by an insulating material called the dielectric.

They are used in broadcasting equipment, mobile telephones, computers, electronic lighting and high voltage circuits to name but a few applications.

Because of their conductivity, durability, high temperature stability and oxidation resistance, platinum and palladium are used to coat multi-layer ceramic capacitors.

For the same reasons, these metals are also used to coat electrodes, the tiny components in all electronic products which help establish electrical contact between non-metallic parts of a circuit and control the flow of electricity. Rhodium and iridium are also used for this.