Probing the Evolution of Electrically Active Defects in Doped Ferroelectric HfO2 during Wake-Up and Fatigue

Autor: Tian-Li Wu, P. Van Marcke, Y.-H. Chen, G. Van den bosch, S. R. C. McMitchell, P. van der Heide, B. Kaczer, Paola Favia, Umberto Celano, Albert Minj, Nicolo Ronchi, J. Van Houdt, K. Banerjee
Rok vydání: 2020
Předmět:
Zdroj: 2020 IEEE Symposium on VLSI Technology.
Popis: We correlate the concentration and configuration of electrical defects in ferroelectric Si -doped HfO 2 (FE- HfO 2 ) with the electrical device performance during wake-up and fatigue regimes. To this end, we combine time-to-breakdown (TDDB), Kelvin probe force microscopy (KPFM), conductive atomic force microcopy (C-AFM) and Scalpel SPM, probing for the first time, the nanoscopic material variations as a function of device's field cycling behavior.
Databáze: OpenAIRE