FERROELECTRIC CAPACITORS WITH BACKEND TRANSISTORS

    公开(公告)号:US20200373312A1

    公开(公告)日:2020-11-26

    申请号:US16636199

    申请日:2017-09-29

    Abstract: An integrated circuit includes a backend thin-film transistor (TFT) a ferroelectric capacitor electrically connected to the backend TFT. The backend TFT has a gate electrode, source and drain regions, a semiconductor region between and physically connecting the source and drain regions, and a gate dielectric between the gate electrode and semiconductor region. The ferroelectric capacitor has a first terminal electrically connected to one of the source and drain regions, a second terminal, and a ferroelectric dielectric between the first and second terminals. In an embodiment, a memory cell includes this integrated circuit, the gate electrode being electrically connected to a wordline, the source region being electrically coupled to a bitline, and the drain region being the one of the source and drain regions. In an embodiment, an embedded memory includes wordlines, bitlines, and a plurality of such memory cells at crossing regions of the wordlines and bitlines.

    Vertical transistor devices and techniques

    公开(公告)号:US10818799B2

    公开(公告)日:2020-10-27

    申请号:US16461331

    申请日:2016-12-24

    Abstract: Disclosed herein are vertical transistor devices and techniques. In some embodiments, a device may include: a semiconductor substrate; a first transistor in a first layer on the semiconductor substrate; and a second transistor in a second layer, wherein the second transistor includes a first source/drain (S/D) contact and a second S/D contact, the first layer is between the second layer and the semiconductor substrate, and the first S/D contact is between the second S/D contact and the first layer. In some embodiments, a device may include: a semiconductor substrate; and a transistor above the semiconductor substrate, wherein the transistor includes a channel and a source/drain (S/D) contact between the channel and the semiconductor substrate.

    HETEROGENEOUS GE/III-V CMOS TRANSISTOR STRUCTURES

    公开(公告)号:US20200312846A1

    公开(公告)日:2020-10-01

    申请号:US16649799

    申请日:2017-12-29

    Abstract: An integrated circuit includes: a germanium-containing fin structure above a layer of insulation material; a group III-V semiconductor material containing fin structure above the layer of insulation material; a first gate structure on a portion of the germanium-containing fin structure; a second gate structure on a portion of the group III-V semiconductor material containing fin structure; a first S/D region above the layer of insulation material and laterally adjacent to the portion of the germanium-containing fin structure, the first S/D region comprising a p-type impurity and at least one of silicon or germanium; a second S/D region above the layer of insulation material and laterally adjacent to the portion of the group III-V semiconductor material containing fin structure, the second S/D region comprising an n-type impurity and a second group III-V semiconductor material; and a layer comprising germanium between the layer of insulation material and the second S/D region.

    THIN-FILM TRANSISTORS WITH LOW CONTACT RESISTANCE

    公开(公告)号:US20200235246A1

    公开(公告)日:2020-07-23

    申请号:US16647679

    申请日:2018-01-10

    Abstract: Techniques are disclosed for forming thin-film transistors (TFTs) with low contact resistance. As disclosed in the present application, the low contact resistance can be achieved by intentionally thinning one or both of the source/drain (S/D) regions of the thin-film layer of the TFT device. As the TFT layer may have an initial thickness in the range of 20-65 nm, the techniques for thinning the S/D regions of the TFT layer described herein may reduce the thickness in one or both of those S/D regions to a resulting thickness of 3-10 nm, for example. Intentionally thinning one or both of the S/D regions of the TFT layer induces more electrostatic charges inside the thinned S/D region, thereby increasing the effective dopant in that S/D region. The increase in effective dopant in the thinned S/D region helps lower the related contact resistance, thereby leading to enhanced overall device performance.

    GATE FOR A TRANSISTOR
    48.
    发明申请

    公开(公告)号:US20200027883A1

    公开(公告)日:2020-01-23

    申请号:US16495600

    申请日:2017-03-31

    Abstract: Substrates, assemblies, and techniques for an apparatus, where the apparatus includes a gate, where the gate includes a first gate side and a second gate side opposite to the first gate side, a gate dielectric on the gate, where the gate dielectric includes a first gate dielectric side and a second gate dielectric side opposite to the first gate dielectric side, a first dielectric, where the first dielectric abuts the first gate side, the first gate dielectric side, the second gate side, and the second gate dielectric side, a channel, where the gate dielectric is between the channel and the gate, a source coupled with the channel, and a drain coupled with the channel, where the first dielectric abuts the source and the drain. In an example, the first dielectric and the gate dielectric help insulate the gate from the channel, the source, and the drain.

    TRANSISTOR DEVICE WITH HETEROGENEOUS CHANNEL STRUCTURE BODIES AND METHOD OF PROVIDING SAME

    公开(公告)号:US20190305121A1

    公开(公告)日:2019-10-03

    申请号:US15939087

    申请日:2018-03-28

    Abstract: Techniques and mechanisms for providing efficient transistor functionality of an integrated circuit. In an embodiment, a transistor device comprises a first body of a high mobility semiconductor and a second body of a wide bandgap semiconductor. The first body adjoins each of, and is disposed between, the second body and a gate dielectric layer of the transistor. The second body extends between, and variously adjoins, each of a source of the transistor and a drain of the transistor. A location of the second body mitigates current leakage that might otherwise occur via the first body. In another embodiment, a mobility of the first body is equal to or greater than 100 cm2/V·s, wherein a bandgap of the second body is equal to or greater than 2.0 eV.

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