INTEGRATED CIRCUIT STRUCTURES HAVING FIN CUTS

    公开(公告)号:US20250113529A1

    公开(公告)日:2025-04-03

    申请号:US18375082

    申请日:2023-09-29

    Abstract: Integrated circuit structures having fin cuts, and methods of fabricating integrated circuit structures having fin cuts, are described. For example, an integrated circuit structure includes a first fin structure or nanowire stack and sub-fin pairing separated from a second fin structure or nanowire stack and sub-fin pairing by a cut, wherein an end of the first fin structure or nanowire stack and sub-fin pairing is facing toward an end of the second fin structure or nanowire stack and sub-fin pairing. A first gate structure is overlying the first fin structure or nanowire stack and sub-fin pairing, and a second gate structure is overlying the second fin structure or nanowire stack and sub-fin pairing. A first isolation structure is overlying the end of the first fin structure or nanowire stack and sub-fin pairing and laterally spaced apart from the first gate structure, and a second isolation structure is overlying the end of the second fin structure or nanowire stack and sub-fin pairing and laterally spaced apart from the second gate structure.

    INTEGRATED CIRCUIT STRUCTURE WITH BACKSIDE SOURCE OR DRAIN CONTACT DIFFERENTIATED ACCESS

    公开(公告)号:US20250006740A1

    公开(公告)日:2025-01-02

    申请号:US18216325

    申请日:2023-06-29

    Abstract: Integrated circuit structures having backside source or drain contact differentiated access are described. In an example, an integrated circuit structure includes first, second and third pluralities of horizontally stacked nanowires or fins, and first, second and third gate stacks. A first epitaxial source or drain structure is between the first plurality of horizontally stacked nanowires or fin and the second plurality of horizontally stacked nanowires or fin, the first epitaxial source or drain structure over a first conductive material having a first depth below the first epitaxial source or drain structure. A second epitaxial source or drain structure is between the second plurality of horizontally stacked nanowires or fin and the third plurality of horizontally stacked nanowires or fin, the second epitaxial source or drain structure over a second conductive material having a second depth below the second epitaxial source or drain structure, the second depth greater than the first depth.

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