Re: epitaxial planar

Dany wrote:
can someone explain the meaning of "epitaxial planar type "???

Epitaxy (epitaxial) refers to layers grown on top of a wafer after it is polished. The alternative is to create layers by diffusing dopants down through the top surface with heat or by driving dopants ions or atoms into the wafer via high velocities. Planar just means flat. All connections and patterns (except for the bulk wafer connection) are on the top surface.