RANDOM CODED INTEGRATED CIRCUIT STRUCTURES AND METHODS OF MAKING RANDOM CODED INTEGRATED CIRCUIT STRUCTURES

摘要

Randomized coded arrays and methods of forming a randomized coded array. The methods include: forming a dielectric layer on a semiconductor substrate; forming an array of openings extending through the dielectric layer; introducing particles into a random set of less than all of the openings; and forming a conductive material in each opening of the array of openings, thereby creating the randomized coded array, wherein a first resistance of a pathway through the conductive material in openings containing the particles is different from a second resistance of a path through openings not containing the particles. Also, a physically unclonable function embodied in a circuit.

主权项

1. A method of forming a randomized coded array, comprising:
forming a dielectric layer on a semiconductor substrate; forming an array of openings extending through said dielectric layer; introducing particles into a random set of less than all of said openings; and forming a conductive material in each opening of said array of openings, thereby creating said randomized coded array, wherein a first resistance of a pathway through said conductive material in openings containing said particles is different from a second resistance of a path through openings not containing said particles.