VERTICAL TUNNELING FIELD-EFFECT TRANSISTOR
    21.
    发明公开

    公开(公告)号:US20230268410A1

    公开(公告)日:2023-08-24

    申请号:US17677909

    申请日:2022-02-22

    Abstract: IC devices including vertical TFETs are disclosed. An example IC device includes a substrate, a channel region, a first region, and a second region. One of the first and second regions is a source region and another one is a drain region. The first region includes a first semiconductor material. The second region includes a second semiconductor material that may be different from the first semiconductor material. The first region and the second region are doped with opposite types of dopants. The channel region includes a third semiconductor material that may be different from the first or second semiconductor material. The channel region is between the first region and the second region. The first region is between the channel region and the substrate. In some embodiments, the first or second region is formed through layer transfer or epitaxy (e.g., graphoepitaxy, chemical epitaxy, or a combination of both).

    SHARED CONTACT DEVICES WITH CONTACTS EXTENDING INTO A CHANNEL LAYER

    公开(公告)号:US20230268392A1

    公开(公告)日:2023-08-24

    申请号:US17678928

    申请日:2022-02-23

    Abstract: The scaling of features in ICs has been a driving force behind an ever-growing semiconductor industry. As transistors of the ICs become smaller, their gate lengths become smaller, leading to undesirable short-channel effects such as poor leakage, poor subthreshold swing, drain-induced barrier lowering, etc. Embodiments of the present disclosure are based on recognition that extending at least one of two S/D contacts of a transistor into a channel layer while keeping it separated from a corresponding gate stack by a channel material may allow keeping the footprint of the transistor relatively small while effectively increasing transistor's effective gate length and thus reducing the negative impacts of short-channel effects. This architecture may be optimized even further if transistors are to be operated at relatively low temperatures, e.g., below 200 Kelvin degrees or lower. For multiple transistors, some of the S/D contacts may be shared to further increase transistor density.

    SCALED GAIN CELL ENHANCED AT LOW TEMPERATURES

    公开(公告)号:US20240008244A1

    公开(公告)日:2024-01-04

    申请号:US17856879

    申请日:2022-07-01

    CPC classification number: H01L27/108

    Abstract: Bits are stored in cells having two transistors between two parallel bitlines. In a memory array, first and second transistor channels in a bit cell are parallel and offset and coupled to first and second bitlines, respectively, which are also parallel and offset. Adjacent bit cells share corresponding transistor channel structures. The transistor channels may be orthogonal to the bitlines. The memory array may be on an integrated circuit (IC) die, which may be coupled to a power supply in an IC system. In an IC system, the memory array may be coupled to a power supply and a cooling structure.

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