chromium-gold metallizing

chromium-gold metallizing

[¦krō·mē·əm ¦gōld ′med·əl·īz·iŋ]
(electronics)
A metal film used on a silicon or silicon oxide surface in semiconductor devices because it is not susceptible to purple plague deterioration; a layer of chromium is applied first for adherence to silicon, then a layer of chromium-gold mixture, and finally a layer of gold to which bonding contacts can be applied.