Marking method for defective products of radio frequency tags

Abstract

The invention discloses a marking method for defective products of radio frequency tags, and belongs to the technical field of manufacturing of electronic tags. Electric conducting ink is adopted to replace general black or red non-electric conducting ink; a printing position is changed to the outer periphery of a chip, so that two electrodes of a traditional core directly penetrate through the electric conducting ink to cause short circuit; a to d points of a traditional circuit only can pass through a b c d paths out of the chip; and a e d short-circuit paths are formed after jet printing of the electric conducting ink. As circuits at two ends of the chip generate short circuit, the traditional matching impedance amplitude of RFID Tag is reduced, the RFID Tag is failed, traditional weak marked products change to definite defective products, and are only judged as the defective products but not good products, the leaving of the weak marked defective products to customers can be effectively prevented, the operation steps are simple, the working principle is clear, the defective electronic tag positioning precision is improved, the output of the weak marked products is effectively prevented, and the operation speed and the production efficiency of electronic tags are further enhanced.

Description

technical field [0001] The invention belongs to the technical field of electronic label manufacturing, and relates to a label marking method, in particular to a marking method for defective radio frequency labels. Background technique [0002] RFID tags are widely used in logistics, drug supervision, public service, animal husbandry, etc. due to their advantages such as large storage data capacity, long reading distance, encryption of data on the tag, and free change of stored information. Moreover, its reliable anti-counterfeiting and fast reading are also decisive factors for its gradual replacement of barcodes. In actual production, when a defective product (weak label) is found, it is necessary to accurately locate the defective product and mark it. However, it is very difficult for the current RFID technology to achieve accurate positioning in the production of small-pitch multi-row and multi-column labels. . [0003] There are three types of existing RFID Dry inlay d...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the shortcomings of the above-mentioned electronic tags in the production process of defective product marking, such as slow operation speed, low production efficiency, and outflow of defective products (weak labels), a method for marking defective products of wireless radio frequency tags is proposed, which can make it easy to be mistaken for Good products with weak labels become clear defective products, which can effectively prevent the output of weak labels, while maintaining the easy-to-distinguish function of targets and sensors, which can improve the quality of electronic labels and maintain high operating speed and production efficiency

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