Patent ID: 11967351
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A device, comprising:
a physical unclonable function (PUF) cell array comprising a plurality of bit cells, and configured to generate a PUF response output, in response to a challenge input, based on a data state of one bit cell in the plurality of bit cells,
wherein each of the plurality of bit cells is configured to store a bit data and comprises:
a transistor having a control terminal coupled to a word line and a first terminal coupled to a source line;
a first memory cell having a first terminal coupled to a first data line and a second terminal coupled to a second terminal of the transistor; and
a second memory cell having a first terminal coupled to a second data line, different from the first data line, and a second terminal coupled to the second terminal of the first memory cell at the second terminal of the transistor.