Patent ID: 9653542
Date: 2017-05-16
CPC Classifications: H01L

Claim:
1. A transistor, comprising: a fin structure protruding from an upper surface of an substrate, the fin structure extending along a first direction and comprising a fin having a lower portion and an upper portion, the upper portion having a fin top side; a gate structure over the fin structure and extending along a second direction different from the first direction, the gate structure and the fin defining an overlapping region where the gate structure overlays the fin, and further defining a source-side non-overlapping region and a drain-side non-overlapping region; a first isolation structure on the upper surface of the substrate and surrounding the lower portion of the fin; and a second isolation structure at least partially embedded from the fin top side of the upper portion of the fin, wherein the second isolation structure comprises a dielectric material and is outside the overlapping region, a top side of the second isolation structure is substantially coplanar with the fin top side, and wherein the second isolation structure has five sides that share an interface with the fin.