Patent ID: 11908744
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A semiconductor device structure, comprising:
a substrate;
a fin structure protruding from the substrate and having a first longitudinal axis along a first direction;
a gate stack formed across the fin structure along a second direction different from the first direction;
a source/drain structure attached to the fin structure;
a contact structure formed over the source/drain structure and having a second longitudinal axis along the second direction; and
a dielectric structure formed through the contact structure and having a top surface and a bottom surface, wherein the dielectric structure has a first dimension at the top surface along the second direction and a second dimension at the bottom surface along the second direction, and the first dimension is greater than the second dimension, and the bottom surface of the dielectric structure is no lower than a bottom surface of the contact structure.