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

Claim 10:
11. The memory test apparatus according to claim 9, wherein there are a plurality of preset frequencies and the plurality of preset frequencies are different from each other; and
each of the plurality of preset frequencies is sequentially taken as a current preset frequency, and for each current preset frequency,
the test circuit is configured to alternately write the first write value and the second write value into the memory cell at the current preset frequency, the write circuit is configured to write the test write value into the memory cell, the read circuit is configured to read the data from the memory cell, and the processor is configured to judge whether the data read from the memory cell is the test write value, and determine 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.