Capacitor, method of controlling the same, and transistor including the same
US11980023B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2023 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | Jun 8, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D64/689
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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: 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.