Patent ID: 11908941
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A semiconductor device, comprising:
a semiconductor substrate having isolation regions formed therein;
a fin-shaped semiconductor structure protruding vertically above the isolation regions and extending laterally in a first direction, wherein the fin-shaped semiconductor structure forms a continuous extension of a bulk semiconductor substrate without having a buried oxide layer below the fin-shaped semiconductor structure; and
a gate dielectric directly overlying a channel region of the fin-shaped semiconductor structure and a gate electrode directly overlying the gate dielectric, the channel region being interposed in the first direction between a source region and a drain region,
wherein the channel region has sloped sidewalls and a width that continuously decreases from a base towards a peak of the channel region,
wherein the channel region comprises an undoped volume inversion region having a height greater than about 25% of a total height of the channel region, and
wherein the volume inversion region comprises a region in which, under an inversion condition, surface depletion regions extending from the opposing sloped sidewalls overlap,
wherein the volume inversion region includes an undoped region.