CAPACITOR, METHOD OF CONTROLLING THE SAME, AND TRANSISTOR INCLUDING THE SAME

    公开(公告)号:US20210358694A1

    公开(公告)日:2021-11-18

    申请号:US17116097

    申请日:2020-12-09

    Abstract: A capacitor comprises a first electrode, a second electrode provided on the first electrode, a ferroelectric film provided between the first electrode and the second electrode, and a dielectric film provided between the ferroelectric film and the second electrode, impedance of the ferroelectric film and impedance of the dielectric film are determined such that a control voltage applied between the first electrode and the second electrode is equal to a capacitance boosting operating voltage, and the capacitance boosting operating voltage is determined by the following equation: V MAX = ( 1 +  Z 2   Z 1  ) ⁢ t F ⁢ E FM where VMAX is a capacitance boosting operating voltage, Z1 is impedance of the ferroelectric film, Z2 is impedance of the dielectric film, tF is a thickness of the ferroelectric film, and EFM is an electric field applied to the ferroelectric film having a maximum polarization.

    CAPACITOR AND SEMICONDUCTOR DEVICE INCLUDING THE SAME

    公开(公告)号:US20220140066A1

    公开(公告)日:2022-05-05

    申请号:US17307592

    申请日:2021-05-04

    Abstract: Provided are a capacitor and a semiconductor device including the capacitor. The capacitor includes a first electrode; a plurality of dielectric films on the first electrode in a sequential series, the plurality of dielectric layers having different conductances from each other; and a second electrode on the plurality of dielectric films, wherein the capacitor has a capacitance which converges to a capacitance of one of the plurality of dielectric films.

    CAPACITORS OF SEMICONDUCTOR DEVICE CAPABLE OF OPERATING IN HIGH FREQUENCY OPERATION ENVIRONMENT

    公开(公告)号:US20210328004A1

    公开(公告)日:2021-10-21

    申请号:US17098915

    申请日:2020-11-16

    Abstract: Provided are capacitors of semiconductor devices, wherein the capacitors may be used in a high-frequency operation environment. A capacitor includes a first electrode layer, a dielectric layer on the first electrode layer, and a second electrode layer on the dielectric layer, wherein the dielectric layer includes a plurality of unit dielectric layers, and the unit dielectric layer includes first and second sub-dielectric layers that have different dielectric constants and conductivities from each other and are connected in series, and the first and second sub-dielectric layers have a conductivity difference so that the capacitance of the dielectric layer converges to the capacitance of the unit dielectric layer.

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