Patent ID: 7786547

Claim:
A semiconductor device comprising: a semiconductor substrate having a top surface with etched trenches; a plurality of deposited isolation structures, said isolation structures deposited in said etched trenches and extending to a top surface of said isolation structure at a selected thickness above said top surface of said semiconductor substrate; epitaxially grown semiconductor material disposed on said top surface of said semiconductor substrate between adjacent ones of said isolation structures forming a plurality of active areas having an interface at the top surface of the substrate where said semiconductor material of the active areas touches semiconductor material of the substrate, said active areas having a top surface at the same level as said top surface of said isolation structures; each active area being isolated from another active area by one of said deposited isolation structures, and wherein said interface between said semiconductor substrate and said semiconductor material are bridged by said deposited isolation structures in said etched trenches that extend to said selected thickness; and a plurality of transistors, each transistor comprising at least two doped regions disposed within the epitaxially grown semiconductor material of an active area and an electrode disposed over the semiconductor material of that active area.