Pragmatic Z2-FET compact model including DC and 1T-DRAM memory operation
2021
Abstract Z2-FET, a partially gated diode, was explored for ESD protection due to its sharp switching behavior and is also a promising candidate for 1T-DRAM application. Based on detailed TCAD simulations, we develop a pragmatic SPICE compact model, including DC and memory operation. The model is validated via TCAD and experimental data. The proposed model reproduces the S-shaped V-I characteristics, the hysteresis and the turn on/off voltages. This model is implemented using Verilog-A and allows to evaluate, through SPICE simulation, the figures of merit for DC, transient and memory operation. It is useful for cell optimization and memory matrix design.
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