Marvell International Limited

Marvellworld Trade Ltd.

Marvell Israel (misl) Ltd.

Walter Lee McNall

Randall Don Briggs

Patrick Alan McKinley

Robert W Shreeve

William B Weiser

Neal C Jaarsma

Thomas Page Bruch

Haggai Telem

Eran Maor

Patrick A Mckinley

A system-on-chip including circuit instances, a selector module, a circuit instance module, and a comparing module. The circuit instances have respectively nodes. The circuit instances are designed to provide nominally a same value at each of the nodes. The selector module is configured to generate a selection signal. The circuit instance module is configured to (i) monitor states of the nodes, and (ii) based on the selection signal, select (a) two or more of the states of the nodes, or (b) two or more parameter values generated based on the two or more of the states of the nodes. The comparing module is configured to: compare (i) the two or more of the states of the nodes, or (ii) the two or more parameter values; and based on the comparison, output a bit of (i) a silicon fingerprint of the system-on-chip, or (ii) a unique response code of the system-on-chip.

Method and apparatus for validating a system-on-chip based on a silicon fingerprint and a unique response code

The present disclosure describes apparatuses and techniques for device-based die authentication. In some aspects, an intensity of a particle beam is varied during semiconductor processing to provide a semiconductor die having devices of varied values. In other aspects, different areas of semiconductor dies are exposed during semiconductor processing to provide semiconductor dies with devices that vary in value from one die to the next. For each semiconductor die, a value generated based on the values of the die's respective devices can be associated with that die thereby enabling subsequent authentication of the semiconductor die.

Method and apparatus for authenticating a semiconductor die

A system and method are disclosed for updating data stored in a one-time programmable (non-rewritable) non-volatile storage device ('OTP'). The OTP is segmented so that updated data may be written to unused areas. Valid data may be differentiated from stale data using a data recognition technique such as tallying or indexing. According to a tallying technique, an updated event count may be obtained by counting the number of blown bits in the OTP. Each time the event occurs, the next bit is blown. According to an indexing technique, each bit in an index corresponds to a data block in the OTP. When updated data is written to the next (empty) data block in order in the OTP, the corresponding (next) index bit is blown. A valid data set may be located by counting the number of blown bits in the index.

Updating data in a one-time programmable data storage device

An integrated circuit has operational circuitry to perform an operation. An operational regulator regulates an operating condition of the operational circuitry. The operational regulator has a sample clock to generate a sample clock signal. The sample clock signal correlates to a manufacturing variation of the electronic circuitry. The operational regulator also includes a configurator to evaluate the sample clock signal and generate a configuration signal according to the evaluation. A controller is provided to receive the configuration signal and control an operating condition of the operational circuitry according to the configuration signal.

Regulating an operating condition of an integrated circuit to compensate for a manufacturing variation

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Meridian, ID, United States of America

Walter Lee McNall