Patent ID: 11862710
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor device comprising:
a first source/drain region on an upper surface of a semiconductor substrate that extends along a first direction to define a length and a second direction orthogonal with respect to the first direction to define a width;
a channel region extending vertically in a direction perpendicular to the first and second directions from a first end contacting the first source/drain region to an opposing second end contacting a second source/drain region;
a first doped source/drain extension region located between the first source/drain region and the channel portion;
a second doped source/drain extension region located between the second source/drain region and the channel portion
a first spacer stack interposed between the first source/drain region and the gate, the first spacer stack including a first dielectric layer and a second dielectric layer separated from the first dielectric layer; and
a second spacer stack interposed between the second source/drain region and the gate, the second spacer stack including a third dielectric layer and a fourth dielectric layer separated from the third dielectric layer.