Patent ID: 11901449
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. An electrical device comprising:
a first vertical field effect transistor (VFET) including a first source/drain region present on a supporting substrate, a first channel region in direct contact with the first source/drain region and a common source/drain region;
a second vertical field effect transistor including the common source/drain region, a second channel region present on the common/source drain region, and a second source/drain region present on the second channel region, wherein the first and second vertical field effect transistors (VFETs) are vertically stacked upon one another the first channel region, the common source/drain region, the second channel region and the second source/drain region present within a fin structure, wherein the first and second vertical field effect transistors are connected by the common source/drain region; and
a metal semiconductor alloy present on a sidewall of the common source/drain region wherein the metal semiconductor alloy provides an electrical path between the first and second vertical field effect transistors having a resistance lower than a pathway directly through the common source/drain region without the metal semiconductor alloy.