Anti-counterfeiting detecting method of integrated circuit chips

Abstract

The invention provides an anti-counterfeiting detecting method of integrated circuit chips, and relates to an integrated circuit technology. The anti-counterfeiting detecting method comprises the following steps: (1) excitation signals are applied to the integrated circuit chips, if the chips respond, the step (2) is executed, and if the chips do not respond, the chip state is marked to be abnormal; (2) chip response signals are compared with pre-stored chip identity information in a chip information database, if the response signals contain information according with the pre-stored chip identity information in the chip information database, the step (3) is executed, otherwise, the chip state is marked to be abnormal; and (3) according to output information of a life sensor of the chips and chip life information pre-stored in the chip information database, the elapsed time of the chips is calculated. Fake chips can be identified accurately, the problem that the cloned / counterfeited / recycled fake chips are inundant is solved, and the certified product rate of the chips is increased.

Description

Technical field [0001] The invention relates to integrated circuit technology. Background technique [0002] Counterfeit and inferior integrated circuit chips are those that are cloned and produced by unauthorized manufacturers or are produced by regular manufacturers but whose parameter performance is not up to standard or are re-used or re-packaged or re-marked. Circuit chip. Fake and inferior integrated circuit chips pose a great threat to the entire integrated circuit industry. In 2011 alone, the economic loss of the entire integrated circuit industry due to counterfeit and inferior integrated circuit chips reached US$7.5 billion. In addition to economic losses, counterfeit and inferior integrated circuit chips are like time bombs that do not know when they will detonate. They pose a huge threat to the safety and stability of electronic systems, especially in aerospace, military, and medical applications. The potential threat of such hidden dangers is greater in applicatio...

AI Technical Summary

Problems solved by technology

This type of circuit area is very expensive. Since the counter is not sensitive to temperature, it cannot accurately reflect the real life of the integrated circuit. For example, the real life of an integrated circuit that works at high temperature for one year may be longer than that of a circuit that works at room temperature for two years.

Moreover, the huge current pulses that program the antifuse memory in real time also interfere with the normal operation of the integrated circuit and pose a threat to system stability.

The same method is only effective for the detection of recycled counterfeit and inferior products

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