Figure 5. Possibly extended array of BFO memory cells.

(a) Illustration of the cross-point memory array (N = M) and its simplified equivalent circuit in the read operation at the worst case. (b) R_HRS/R_LRS ratio (black line) and nonlinearity factor (α, red line) as a function of V_read, which are extracted from I–V curves at Fig. 4a. (c) Read margin ΔV/V_pu as a function of N at various V_read values.