NITRIDE STRUCTURES HAVING LOW CAPACITANCE GATE CONTACTS INTEGRATED WITH COPPER DAMASCENE STRUCTURES

    公开(公告)号:US20200083167A1

    公开(公告)日:2020-03-12

    申请号:US16123429

    申请日:2018-09-06

    Abstract: A semiconductor structure having: a Group III-N semiconductor; a first dielectric disposed in direct contact with the Group III-N semiconductor; a second dielectric disposed over the first dielectric, the first dielectric having a higher dielectric constant than the second dielectric; a third dielectric layer disposed on the first dielectric layer, such third dielectric layer having sidewall abutting sides of the second dielectric layer; and a gate electrode contact structure. The gate electrode structure comprises: stem portion passing through, and in contact with, the first dielectric and the second dielectric having bottom in contact with the Group III-V semiconductor; and, an upper, horizontal portion extending beyond the stem portion and abutting sides of the third dielectric layer. An electrical interconnect structure has side portions passing through and in contact with the third dielectric layer and has a bottom portion in contact with the horizontal portion of the gate electrode contact structure.

    RECONSTITUTED WAFER STRUCTURE
    6.
    发明申请

    公开(公告)号:US20190165108A1

    公开(公告)日:2019-05-30

    申请号:US15827349

    申请日:2017-11-30

    Abstract: A reconstituted wafer includes a plurality of apertures defined in a first substrate. A module is positioned in each aperture and coupled to circuit traces on the first substrate by operation of beam leads extending from the module. A second substrate is positioned over the first substrate and each module is hermetically sealed in a space defined by the respective aperture and the second substrate. One or more vias are provided to access I/O signals at a surface of the first or second substrates. The modules may include an invariant die where different technologies are stacked together.

    Nitride structure having gold-free contact and methods for forming such structures

    公开(公告)号:US10096550B2

    公开(公告)日:2018-10-09

    申请号:US15438196

    申请日:2017-02-21

    Abstract: A semiconductor structure having a Group III-N semiconductor layer disposed on a substrate. A multi-layer, electrical contact structure in contact with the Group III-N semiconductor layer includes a gold-free contact layer in contact with the Group III-N semiconductor layer; and a gold-free electrically conductive etch stop layer electrically connected to the gold-free contact layer. An electrically conductive via passes through the substrate to the etch stop layer. The structure includes a plurality of electrode structures, each one providing a corresponding one of a source electrode structure, drain electrode structure and a gate electrode structure. The source electrode structure, drain electrode structure and gate electrode structure include: an electrical contact structure and an electrode contact. The electrode contacts have the same gold-free structure and have co-planar upper surfaces.

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