Patent ID: 9385131
Filing Date: 2016-07-05
CPC Classification: H01L

Claim Text:
1. A semiconductor structure comprising: a trench capacitor embedded in a substrate and comprising an inner electrode, a node dielectric, and an outer electrode; a conductive strap structure in contact with, and overlying, said inner electrode; a dielectric capacitor cap in contact with a top surface of said conductive strap structure, wherein outermost vertical sidewalls of said dielectric capacitor cap are vertically aligned with outermost vertical sidewalls of said conductive strap structure; a semiconductor fin including a pair of channel regions, wherein a distal sidewall of said conductive strap structure is laterally offset by a greater distance from said pair of channel regions than a lateral distance between a geometrical center of said conductive strap structure and said pair of channel regions; and an access transistor that controls current flow into, and out of, said trench capacitor, wherein said semiconductor fin comprises a source region of said access transistor that directly contacts said conductive strap structure, wherein a topmost surface of said source region is coplanar with a bottommost surface of said dielectric capacitor cap.