Anti-transfer chip and radio frequency tag

Abstract

The invention discloses an anti-transfer chip and a radio frequency tag. The anti-transfer chip comprises a chip; the electric connection convex points and the supporting convex points are fixedly arranged on one surface, facing the tag antenna, of the chip; the anti-transfer salient point is fixedly arranged near the electric connection salient point and is electrically connected with the electric connection salient point; the easy-to-corrode protection layer is coated on the surface of the anti-transfer bump and is used for isolating the anti-transfer bump from the tag antenna after the anti-transfer chip and the tag antenna are packaged together, so that the anti-transfer bump is not conducted with the tag antenna; when the anti-transfer chip is transferred, the easy-to-corrode protection layers coated on the surfaces of the anti-transfer bumps are corroded, so that the anti-transfer chip is short-circuited and fails after being transferred. According to the invention, the anti-transfer bumps of which the surfaces are coated with the easy-to-corrode protective layers are utilized to realize physical damage to the chip in the chip transfer period, so that the chip is effectivelyprevented from being successfully transferred.

Description

technical field [0001] The invention relates to the technical field of electronic anti-counterfeiting, in particular to an anti-transfer chip and a radio frequency tag. Background technique [0002] In passive RFID anti-counterfeiting applications, preventing RFID tags from being transferred and reused is an important indicator to consider the system's anti-counterfeiting capabilities. Commonly used anti-transfer solutions mostly consider the anti-transfer of antennas, such as fragile materials such as fragile paper and ceramic sheets as antenna substrates. When attempting to transfer the tag the antenna is damaged rendering the tag useless. But the disadvantage of this method is that the chip is intact, counterfeiters can use special reagents to remove the chip from the label intact, and then package it on a new antenna, so as to realize the reuse of the chip. This solution only destroys the antenna and cannot completely realize the anti-transfer of the label. [0003] A...

AI Technical Summary

Problems solved by technology

[0004] The invention provides an anti-transfer chip and a radio frequency tag, which solves the problem that the RFID tag chip is transferred and reused without increasing the logic of the anti-transfer function of the chip

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