Patent ID: 11862276
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 2:
3. The memory test method according to claim 1, wherein there are a plurality of preset frequencies and the plurality of preset frequencies are different from each other; and the memory test method further comprises:
sequentially taking each of the plurality of preset frequencies as a current preset frequency, and performing the following second cyclic step at each current preset frequency:
alternately writing the first write value and the second write value into the memory cell at the current preset frequency;
writing the test write value into the memory cell; and
judging whether the data read from the memory cell is the test write value, and determining that the capacitance-frequency characteristic of the memory cell is abnormal at the current preset frequency when the data is not the test write value.