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

Claim 1:
2. The method for determining mismatch of the sense amplifier of claim 1, wherein determining the first signal threshold comprises:
keeping a voltage on a capacitor plate in the second memory cell unchanged, changing a voltage on a first plate of a capacitor in the first memory cell, and obtaining a number of failed bits in the memory under influence of different voltages; wherein, a second plate of the capacitor in the first memory cell is connected to a source of a transistor in the first memory cell, and the first plate is arranged opposite to the second plate; and
when the number of failed bits reaches a preset allowable number of failures, determining a voltage variation on the first bit line during the read operation of the first memory cell as the first signal threshold.