This letter investigates the impacts of proximity layers on metal-induced lateral crystallization (MILC). The underlying insulating layers not only affect the MILC growth length but also influence the electrical characteristics. Based on the comparison among the underlying insulating layers, SiN is unsuitable to be an underlying insulating layer because of concerns regarding the crystallization condition. This letter proposes three reasonable mechanisms, including the gettering of Ni, intrinsic stress, and the involvement of hydrogen to enhance the understanding of the impacts of proximity layers.
- Metal-induced lateral crystallization (MILC)
- thin-film transistors (TFTs)