Patent ID: 11889004
Assignee: FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 2:
3. The PUF-film of claim 1, wherein the structured electrode layer is a first structured electrode layer, wherein the film substrate comprises a second structured electrode layer comprising a plurality of second conductive traces, wherein a dielectric material of the dielectric layer is printed onto the second structured electrode layer, wherein the first structured electrode layer is arranged such that the first structured electrode layer comprises a plurality of first conductive traces overlapping with the second conductive traces in a plurality of overlapping regions so as to form capacitive elements in the overlapping regions, wherein electric capacitance values of the capacitive elements vary stochastically based on the variation of the thickness of the dielectric layer due to the printing of the dielectric material.