The effect of sub-channel delay on bandwidth synthesis is investigated to eliminate the “phase step” phenomenon in bandwidth synthesis during the test of CDBE (Chinese Digital Backend). Through formula derivation, we realize that sub-channel delay may cause phase discontinuity between different sub-channels. Theoretical analysis shows that sub-channel delay can induce bandwidth synthesis error ...

Abstrsct Polymorphic Hf x Zr (1− ) O 2 thin films have been widely used as dielectric layers in the semiconductor industry for their high- k , ferroelectric, and antiferroelectric properties metastable non-monoclinic phases. To maximize components, we optimize composition depth profile of 20 nm PVD through closed-loop experiments by using parallel Bayesian optimization (BO) with advanced noisy ...

Endurance of ferroelectric HfO2 needs to be enhanced for its use in commercial memories. This work investigates fatigue epitaxial Hf0.5Zr0.5O2 (HZO) instead polycrystalline samples. Using different substrates, the relative amount orthorhombic (ferroelectric) and monoclinic (paraelectric) phases is controlled. Epitaxial HZO films almost free parasitic phase suffer severe fatigue. In contrast, mi...

Nowadays, chalcogenide-based phase change materials (PCMs) are proving themselves superior in the category of memory devices due to a combination their unique set properties.