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| Titel: |
Comparison of CSD and sputtered PZT with iridium electrodes |
| Auteur: |
Fox, Glen R. Sun, Shan Eastep, Brian Hadnagy, T. Domokos |
| Verschenen in: |
Integrated ferroelectrics |
| Paginering: | Jaargang 26 (1999) nr. 1-4 pagina's 215-223 |
| Jaar: |
1999-10-01 |
| Inhoud: |
Several recent reports have combined Ir electrodes with PbZrxTi1-xO3 (PZT) made by chemical solution deposition (CSD) to produce capacitors with low fatigue rates, but the same behavior has not been reported for sputtered PZT with Ir electrodes. This paper presents a comparison of the performance of sputtered and CSD PZT capacitors with Ir electrodes. It was found that replacing the Pt top electrode with Ir was sufficient for obtaining improved fatigue performance for both sputtered and CSD deposited PZT. A comparison of Ir and Pt top electrodes shows that Ir can extend the number of useful switching cycles by 3 to 4 orders of magnitude for both sputtered and CSD deposited PZT. As has been previously observed for Pt electrodes, the fatigue with Ir top electrodes is dependent on the switching voltage. Excellent fatigue performance has been observed to 1011 cycles for both 3 and 5 V switching potentials. In addition to fatigue performance, a detailed analysis of switching, retention and leakage current behavior will also be presented. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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