The atomic percent ratio of the HZO film was confirmedby X-ray photoelectron spectroscopy (XPS) depth profiling as shown in Fig. 2 (a), and revealed that the Hf : Zr ratio of theHZO film was around 0.5 : 0.5 using 1 : 1 number of HfO2 :ZrO2 ALD cycles. The grazing incidence X-ray diffraction(GI-XRD) spectrum in Fig. 2 (b) indicates clear ferroelectricorthorhombic phase peaks after the post metal annealing(600 °C for 30 seconds by RTA). The ferroelectric characteristics of the MFM capacitor were verified by capacitanceand polarization measurements as shown in Fig. 2 (c) and (d).The butterfly-like feature of the capacitance-voltage (C-V)characteristics and the polarization-electric field (P-E) hysteresis loops indicate that the post-annealed HZO film hastypical ferroelectric properties.