Taiwan Semiconductor Manufacturing Company Limited
METHODS OF CONTROLLING PCRAM DEVICES IN SINGLE-LEVEL-CELL (SLC) AND MULTI-LEVEL-CELL (MLC) MODES AND A CONTROLLER FOR PERFORMING THE SAME METHODS

Abstract:

Various embodiments provide methods for configuring a phase-change random-access memory (PCRAM) structures, such as PCRAM operating in a single-level-cell (SLC) mode or a multi-level-cell (MLC) mode. Various embodiments may support a PCRAM structure being operating in a SLC mode for lower power and a MLC mode for lower variability. Various embodiments may support a PCRAM structure being operating in a SLC mode or a MLC mode based at least in part on an error tolerance for a neural network layer.