Patent ID: 11901001
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 18:
19. A memory system comprising:
a memory device; and
a memory controller configured to transmit a physical unclonable function (PUF) data request command to the memory device in response to an authentication request received from a host, and generate an authentication key based on PUF data received from the memory device,
wherein the memory device includes
a memory cell region including word lines stacked in a first direction, channel structures passing through the word lines in the first direction, and a first metal pad;
a peripheral circuit region including a second metal pad and connected to the memory cell region in the first direction by the first metal pad and the second metal pad; and
a PUF circuit including a plurality of through electrodes passing through the memory cell region in the first direction, and configured to
generate PUF data according to resistance values of the plurality of through electrodes, and
generate the PUF data based on a node voltage between through electrodes connected in series, among the plurality of through electrodes.