Patent ID: 11928355
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method for determining mismatch of a sense amplifier, the sense amplifier being connected to a first bit line and a second bit line, wherein the first bit line is located in a first memory cell, the second bit line is located in a second memory cell, and the method for determining mismatch of the sense amplifier comprises:
determining a first signal threshold on the first bit line when the first memory cell executes write and read operations;
determining a second signal threshold on the second bit line when the second memory cell executes write and read operations; and
determining, according to the first signal threshold and the second signal threshold, whether the sense amplifier is mismatched;
wherein determining the first signal threshold on the first bit line when the first memory cell executes write and read operations comprises:
writing same data into a plurality of memory cells of a memory where the first memory cell is located; and
setting data retention time as a first preset time, setting signal timing time as a second preset time, and determining the first signal threshold.