Composite support for semiconductive units or electrical components

摘要

The support for an electrical component consists of a carbon substrate coated with a first bonding layer of silicon carbide or nitride, and a second, electrically insulating layer of amorphous alumina whose breakdown voltage is higher than 200 V per micron of thickness. This support has a thermal conductivity higher than 70 W/m DEG C, and an electrical resistivity higher than 10<9> ohm cm.