Metallizing

Radiation hardened die of the 1886VE10 microcontroller prior to metalization etching
Radiation hardened die of the 1886VE10 microcontroller after a metalization etching process has been used
Gold-plated phone belonging to the dictator Batista at the Revolution Museum in Havana

Metallizing is the general name for the technique of coating metal on the surface of objects. Metallic coatings may be decorative, protective or functional.