A unique, repeatable, individual digital ID

for identification, die tracing, and cryptography.

ICID is a full-custom standard cell made with conventional digital CMOS processes and design rules. The ICID cell can be added to any full custom digital CMOS IC, or the base layers of gate arrays and other structured logic.

On every die on every wafer, ICID produces a unique, repeatable, and individual digital bit stream, usable for identification, cryptographic keys and one-time pads. A different ID from every ICID cell, without programming or special processing.

True Random Bit Generation

ICID uses the random atomic variations inherent in the silicon manufacturing process to produce a sequence of analog voltages that are transformed into digital bits. The atoms don't move, so the bits stay the same every time the ICID cell is read. But the atoms are placed differently in every ICID cell, so every cell will have a different ID. Mother nature does the programming; you just read it out.

New Generation 4 features

The new Gen4 ICID cell is scalable from 350nm down to 65nm and below. It produces 224 unique, uncorrelated, and random bits. New circuitry reduces drift and mitigates the effects of the small residual drift, permitting strong cryptographic key generation. This is not possible with other fully-switched digital random bit approaches.