| Presentation | 2007/6/18 Retention Characteristics of Nano Scale Ferroelectric VDF/TrFE Copolymer Film Woo Young Kim, Yong Soo Lee, Du Youn Ka, Sang Youl Kim, Hee Chul Lee, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A Metal Insulator Metal (MIM) capacitor, which employs a spin-coated ferroelectric VDF/TrFE copolymer thin film, was fabricated and its ferroelectric characteristics were systematically analyzed. The remanent polarizations on each polymer thickness are investigated, where a constant electric field and varying pulse period are applied. It is found that the switching time applied from the Avrami equation is not sufficient to reverse a certain polarized phase of the VDF/TrFE copolymer. In this study, we attempt to explain these characteristics by the nucleation-growth theory. A thinner polymer under the same electric field and pulse duration time shows shorter retention time. Thus, it can be concluded that the uncompensated charge of the thinner film caused by the electrodes yields a stronger depolarization field effect. This is described by the calculation of the depolarization phenomenon. The importance of data writing time and polymer thickness with respect to retention time for ferroelectric nonvolatile memory devices is demonstrated. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | VDF/TrFE / Remanent Polarization / Retention / depolarization field / nonvolatile memory |
| Paper # | ED2007-130,SDM2007-135 |
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| Conference Information | |
| Committee | ED |
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| Conference Date | 2007/6/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Electron Devices (ED) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Retention Characteristics of Nano Scale Ferroelectric VDF/TrFE Copolymer Film |
| Sub Title (in English) | |
| Keyword(1) | VDF/TrFE |
| Keyword(2) | Remanent Polarization |
| Keyword(3) | Retention |
| Keyword(4) | depolarization field |
| Keyword(5) | nonvolatile memory |
| 1st Author's Name | Woo Young Kim |
| 1st Author's Affiliation | Dept of EECS, Korea Advanced Institute of Science and Technology() |
| 2nd Author's Name | Yong Soo Lee |
| 2nd Author's Affiliation | Dept of EECS, Korea Advanced Institute of Science and Technology |
| 3rd Author's Name | Du Youn Ka |
| 3rd Author's Affiliation | Dept. of Chemistry, Korea Advanced Institute of Science and Technology |
| 4th Author's Name | Sang Youl Kim |
| 4th Author's Affiliation | Dept. of Chemistry, Korea Advanced Institute of Science and Technology |
| 5th Author's Name | Hee Chul Lee |
| 5th Author's Affiliation | Dept of EECS, Korea Advanced Institute of Science and Technology |
| Date | 2007/6/18 |
| Paper # | ED2007-130,SDM2007-135 |
| Volume (vol) | vol.107 |
| Number (no) | 110 |
| Page | pp.pp.- |
| #Pages | 4 |
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