Verilog-A model for phase change memory simulation

A fully-customized phase change memory (PCM) model for circuit simulation has been developed and implemented in Verilog-A platform. A temperature sensing circuit is used to track the set and reset conditions of the PCM element. The current-voltage of PCM cell at the two different states and the change of states during set and reset can be correctly simulated by the model. The model has also been calibrated by comparing with experimental data reported in the literature.