02563nam 2200421 450 991079545280332120210226095152.03-8325-9478-7(CKB)4340000000244390(MiAaPQ)EBC524714058a1c68b-e5bc-40b7-ab3b-3edeb0dd2d03(EXLCZ)99434000000024439020180509d2015 uy 0engurcnu||||||||txtrdacontentcrdamediacrrdacarrierElectrical characterisation of ferroelectric field effect transistors based on ferroelectric HfO2 thin films /Ekaterina YurchukBerlin :Logos Verlag,[2015]1 online resource (x, 170 pages)Research at NaMLabPublicationDate: 201506303-8325-4003-2 Long description: Ferroelectric field effect transistor (FeFET) memories based on a new type of ferroelectric material (silicon doped hafnium oxide) were studied within the scope of the present work. Utilisation of silicon doped hafnium oxide (Si:HfO raisebox-0.5ex scriptsize 2) thin films instead of conventional perovskite ferroelectrics as a functional layer in FeFETs provides compatibility to the CMOS process as well as improved device scalability. The influence of different process parameters on the properties of Si:HfO raisebox-0.5ex scriptsize 2 thin films was analysed in order to gain better insight into the occurrence of ferroelectricity in this system. A subsequent examination of the potential of this material as well as its possible limitations with the respect to the application in non-volatile memories followed. The Si:HfO raisebox-0.5ex scriptsize 2-based ferroelectric transistors that were fully integrated into the state-of-the-art high-k metal gate CMOS technology were studied in this work for the first time. The memory performance of these devices scaled down to 28 nm gate length was investigated. Special attention was paid to the charge trapping phenomenon shown to significantly affect the device behaviour.HafniumFerroelectric crystalsHafnium.Ferroelectric crystals.661.0514Yurchuk Ekaterina1551772MiAaPQMiAaPQMiAaPQBOOK9910795452803321Electrical characterisation of ferroelectric field effect transistors based on ferroelectric HfO2 thin films3811430UNINA