Abstract
Conference Title: 2013 Spanish Conference on Electron Devices (CDE) Conference Start Date: 2013, Feb. 12 Conference End Date: 2013, Feb. 14 Conference Location: Valladolid Some high-k dielectric materials show two interchangeable conductivity states (a High Resistive State, HRS, and Low Resistive State, LRS) in what is known as Resistive Switching (RS), being the basis of ReRAMs. In this work, the Resistive Switching (RS) phenomenon is studied on ultrathin Hf based high-k dielectrics at the nanoscale, by using the conductive atomic force microscopy (CAFM), and at device level. The CAFM allows analysing the local dielectric properties of the RS phenomenon. At device level, the temperature dependence of the RS-related gate currents during the HRS and LRS has been studied in MOSFETs.