Method and structure of forming finfet contact
AssigneeInternational Business Machines Corporation
InventorsKangguo CHENG, Peng XU
Life of this patent
Estimating the term…
Loading patent…
AssigneeInternational Business Machines Corporation
InventorsKangguo CHENG, Peng XU
Estimating the term…
Various methods and structures for fabricating a contact for a semiconductor FET or FinFET device. A semiconductor FET structure includes a substrate, a source/drain region layer and source/drain contact. First and second gate spacers are adjacent respective first and second opposing sides of the source/drain contact. The source/drain contact is disposed directly on and contacting the entire source/drain region layer, and at a vertical level thereabove, the source/drain contact being recessed to a limited horizontal area continuing vertically upwards from the vertical level. The limited horizontal area horizontally extending along less than a full horizontal length of a vertical sidewall of the first and second gate spacers, and less than fully covering the source/drain region layer. A method uses a reverse contact mask to form a shape of the source/drain contact into an inverted “T” shape.
A semiconductor FET structure comprising:
Dependencies are inferred from the claim text.