FORKSHEET TRANSISTORS WITH DIELECTRIC OR CONDUCTIVE SPINE

    公开(公告)号:US20240153956A1

    公开(公告)日:2024-05-09

    申请号:US18409519

    申请日:2024-01-10

    CPC classification number: H01L27/1203 H01L21/84

    Abstract: Embodiments disclosed herein include forksheet transistor devices having a dielectric or a conductive spine. For example, an integrated circuit structure includes a dielectric spine. A first transistor device includes a first vertical stack of semiconductor channels spaced apart from a first edge of the dielectric spine. A second transistor device includes a second vertical stack of semiconductor channels spaced apart from a second edge of the dielectric spine. An N-type gate structure is on the first vertical stack of semiconductor channels, a portion of the N-type gate structure laterally between and in contact with the first edge of the dielectric spine and the first vertical stack of semiconductor channels. A P-type gate structure is on the second vertical stack of semiconductor channels, a portion of the P-type gate structure laterally between and in contact with the second edge of the dielectric spine and the second vertical stack of semiconductor channels.

    III-V TRANSISTORS WITH RESISTIVE GATE CONTACTS

    公开(公告)号:US20210167200A1

    公开(公告)日:2021-06-03

    申请号:US16645119

    申请日:2017-12-29

    Abstract: Embodiments herein describe techniques, systems, and method for a semiconductor device that may include an III-V transistor with a resistive gate contact. A semiconductor device may include a substrate, and a channel base including a layer of GaN above the substrate. A channel stack may be above the channel base, and may include a layer of GaN in the channel stack, and a polarization layer above the layer of GaN in the channel stack. A gate stack may be above the channel stack, where the gate stack may include a gate dielectric layer above the channel stack, and a resistive gate contact above the gate dielectric layer. The resistive gate contact may include silicon (Si) or germanium (Ge). Other embodiments may be described and/or claimed.

    TRANSISTOR CONNECTED DIODES AND CONNECTED III-N DEVICES AND THEIR METHODS OF FABRICATION

    公开(公告)号:US20200066890A1

    公开(公告)日:2020-02-27

    申请号:US16321789

    申请日:2016-09-30

    Abstract: A transistor connected diode structure is described. In an example, the transistor connected diode structure includes a group III-N semiconductor material disposed on substrate. A raised source structure and a raised drain structure are disposed on the group III-N semiconductor material. A mobility enhancement layer is disposed on the group III-N semiconductor material. A polarization charge inducing layer is disposed on the mobility enhancement layer, the polarization charge inducing layer having a first portion and a second portion separated by a gap. A gate dielectric layer disposed on the mobility enhancement layer in the gap. A first metal electrode having a first portion disposed on the raised drain structure, a second portion disposed above the second portion of the polarization charge inducing layer and a third portion disposed on the gate dielectric layer in the gap. A second metal electrode disposed on the raised source structure.

    P-I-N DIODE AND CONNECTED GROUP III-N DEVICE AND THEIR METHODS OF FABRICATION

    公开(公告)号:US20200066849A1

    公开(公告)日:2020-02-27

    申请号:US16322453

    申请日:2016-09-30

    Abstract: A P-i-N diode structure includes a group III-N semiconductor material disposed on a substrate. An n-doped raised drain structure is disposed on the group III-N semiconductor material. An intrinsic group III-N semiconductor material is disposed on the n-doped raised drain structure. A p-doped group III-N semiconductor material is disposed on the intrinsic group III-N semiconductor material. A first electrode is connected to the p-doped group III-N semiconductor material. A second electrode is electrically coupled to the n-doped raised drain structure. In an embodiment, a group III-N transistor is electrically coupled to the P-i-N diode. In an embodiment, a group III-N transistor is electrically isolated from the P-i-N diode. In an embodiment, a gate electrode and an n-doped raised drain structure are electrically coupled to the n-doped raised drain structure and the second electrode of the P-i-N diode to form the group III-N transistor.

    STACKED GROUP III-NITRIDE TRANSISTORS FOR AN RF SWITCH AND METHODS OF FABRICATION

    公开(公告)号:US20200058782A1

    公开(公告)日:2020-02-20

    申请号:US16461353

    申请日:2016-12-30

    Abstract: A semiconductor device includes a silicon pillar disposed on a substrate, the silicon pillar has a sidewall. A group III-N semiconductor material is disposed on the sidewall of the silicon pillar. The group III-N semiconductor material has a sidewall. A doped source structure and a doped drain structure are disposed on the group III-N semiconductor material. A polarization charge inducing layer is disposed on the sidewall of the group III-N semiconductor material between the doped drain structure and the doped source structure. A plurality of portions of gate dielectric layer is disposed on the sidewalls of the group III-N semiconductor material and between the polarization charge inducing layer. A plurality of resistive gate electrodes separated by an interlayer dielectric layer are disposal adjacent to each of the plurality of portions of the gate dielectric layer. A source metal layer is disposed below and in contact with the doped source structure.

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