Patent ID: 11947713
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 11:
12. A non-transitory computer-readable medium encoded with instructions for commanding one or more data processors to execute steps of a method of providing a physically unclonable function (PUF) value, the steps comprising:
providing to a PUF cell first and second word line signals in both a synchronized manner and a manner that the second word line signal is in series with the first word line signal;
in response to the first and second word line signals, the PUF cell providing PUF cell values; and
identifying a cell strength of the PUF cell based on a number of times the PUF cell values change based on variations in timing of the first and second word line signals, whereby a data value indicating a number of times the PUF cell values are consistent when provided with the first and second word line signals on the first control line and the second control line with varied timing; and the data value is stored in a computer-readable medium.