Material and electrical characterizations of high-k Ta2O5 dielectric material deposited on polycrystalline silicon and single crystalline substrate
RTA annealing can mitigate bulk defects in Ta2O5 by repairing oxygen vacancies. Multiple electrical and material analyses on two types of substrates. The interface on top of a single crystalline substrate had fewer structural defects. The dielectrics on a single crystalline substrate possessed superior characteristics.
ta2o5 annealing single crystalline silicon polysilicon material quality electrical measurements