Patent ID: 9018972
Filing Date: 2015-04-28
Classification: H03K

Abstract:
1. A method of generating a physically unclonable function (“PUF”) circuit value comprising: comparing each of first identification components in a first bank to each of second identification components in a second bank, wherein a given first identification component in the first bank is not compared to another first identification component in the first bank, and wherein a given second identification component in the second bank is not compared to another second identification component in the second bank each of the first identification components including a first capacitor and each of the second identification components including a second capacitor; generating a digital bit value for each comparison made while comparing each of the first identification components to each of the second identification components; and generating a PUF circuit value from the digital bit values generated from each comparison made, wherein comparing each of the first identification components to each of the second identification components includes: