NANOSHEET STRUCTURES WITH CORNER SPACER

    公开(公告)号:US20250031401A1

    公开(公告)日:2025-01-23

    申请号:US18354405

    申请日:2023-07-18

    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to nanosheet transistor structures and methods of manufacture. The structure includes: a plurality of stacked semiconductor nanosheets over a semiconductor substrate; a plurality of gate structures surrounding individual nanosheets of the plurality of semiconductor nanosheets; an inner sidewall spacer adjacent each of the plurality of gate structures; and corner spacers under the plurality of stacked semiconductor nanosheets.

    HETEROJUNCTION BIPOLAR TRANSISTORS
    7.
    发明公开

    公开(公告)号:US20230369474A1

    公开(公告)日:2023-11-16

    申请号:US17745280

    申请日:2022-05-16

    CPC classification number: H01L29/7371 H01L29/66242

    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to heterojunction bipolar transistors and methods of manufacture. The structure includes: a collector in a semiconductor substrate; a subcollector in the semiconductor substrate; an intrinsic base over the subcollector; an extrinsic base adjacent to the intrinsic base; an emitter over the intrinsic base; and an isolation structure between the extrinsic base and the emitter and which overlaps the subcollector.

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