NON-PLANAR SILICIDED SEMICONDUCTOR ELECTRICAL FUSE

    公开(公告)号:US20220165663A1

    公开(公告)日:2022-05-26

    申请号:US17104078

    申请日:2020-11-25

    摘要: An electrical fuse (e-fuse) includes a fuse link including a silicided semiconductor layer over a dielectric layer covering a gate conductor. The silicided semiconductor layer is non-planar and extends orthogonally over the gate conductor. A first terminal is electrically coupled to a first end of the fuse link, and a second terminal is electrically coupled to a second end of the fuse link. The fuse link may be formed in the same layer as an intrinsic and/or extrinsic base of a bipolar transistor. The gate conductor may control a current source for programming the e-fuse. The e-fuse reduces the footprint and the required programming energy compared to conventional e-fuses.

    TRANSISTOR WITH MULTI-LEVEL SELF-ALIGNED GATE AND SOURCE/DRAIN TERMINALS AND METHODS

    公开(公告)号:US20220223694A1

    公开(公告)日:2022-07-14

    申请号:US17146513

    申请日:2021-01-12

    摘要: Disclosed are a transistor and a method for forming the transistor. The method includes concurrently forming gate and source/drain openings through an uppermost layer (i.e., a dielectric layer) in a stack of layers. The method can further include: depositing and patterning gate conductor material so that a first gate section is in the gate opening and a second gate section is above the gate opening and so that the source/drain openings are exposed; extending the depth of the source/drain openings; and depositing and patterning source/drain conductor material so that a first source/drain section is in each source/drain opening and a second source/drain section is above each source/drain opening. Alternatively, the method can include: forming a plug in the gate opening and sidewall spacers in the source/drain openings; extending the depth of source/drain openings; depositing and patterning the source/drain conductor material; and subsequently depositing and patterning the gate conductor material.