Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.2005397
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dc.titleAtomic-layer-deposited Al2O3-HfO2-Al 2O3 dielectrics for metal-insulator-metal capacitor applications
dc.contributor.authorDing, S.-J.
dc.contributor.authorZhu, C.
dc.contributor.authorLi, M.-F.
dc.contributor.authorZhang, D.W.
dc.date.accessioned2014-10-07T04:24:05Z
dc.date.available2014-10-07T04:24:05Z
dc.date.issued2005
dc.identifier.citationDing, S.-J., Zhu, C., Li, M.-F., Zhang, D.W. (2005). Atomic-layer-deposited Al2O3-HfO2-Al 2O3 dielectrics for metal-insulator-metal capacitor applications. Applied Physics Letters 87 (5) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2005397
dc.identifier.issn00036951
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/81990
dc.description.abstractAtomic-layer-deposited Al2O3-HfO2-Al 2O3 dielectrics have been investigated to replace conventional silicon oxide and nitride for radio frequency and analog metal-insulator-metal capacitors applications. In the case of 1-nm-Al 2O3, sufficiently good electrical performances are achieved, including a high dielectric constant of ∼17, a small dissipation factor of 0.018 at 100 kHz, an extremely low leakage current of 7.8×10-9 A/cm2 at 1 MV/cm and 125 ° C, perfect voltage coefficients of capacitance (74 ppm/V2 and 10 ppm/V). The quadratic voltage coefficient of capacitance decreases with the applied frequency due to the change of relaxation time with different carrier mobility in insulator, and correlates with the dielectric composition and thickness, which is of intrinsic property owing to electric field polarization. Furthermore, the conduction mechanism of the AHA dielectrics is also discussed, indicating the Schottky emission dominated at room temperature. © 2005 American Institute of Physics.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1063/1.2005397
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.description.doi10.1063/1.2005397
dc.description.sourcetitleApplied Physics Letters
dc.description.volume87
dc.description.issue5
dc.description.page-
dc.description.codenAPPLA
dc.identifier.isiut000230886100062
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