Manufacture method of wireless radio frequency identification mark

Abstract

The invention relates to a manufacture method of a wireless radio frequency identification mark, which mainly comprises the following steps: 1. selecting base materials with the whole surface continuous conductive performance; 2. drilling holes on the base materials, covering crystals on the base materials, and electrically connecting and installing identification wafers on the base materials; and 3. processing and forming groove antennas on the base materials. Thereby, the manufacture cost of the wireless radio frequency identification mark is greatly reduced, and the invention has the advantages of electricity saving, energy saving, no pollution, retrievability, obvious and high grain of the antennas, strong reflectivity and high conductivity. In addition, the shielding effect of the whole surface conductive performance of the base materials is good, and the electric performance influence on the radio frequency identification mark by objects and environment can be obviously reduced, so the invention is more applicable to the radio frequency identification mark of the objects such as metal objects, water-containing conductors and the like.

Description

technical field [0001] The invention relates to a radio frequency identification tag, especially a slotted antenna directly processed on the entire surface of a continuous conductive substrate, which can greatly reduce the manufacturing cost, is pollution-free, recyclable, and has a significant high-gain antenna, strong Reflectivity, high conductivity... and other practical advantages. Background technique [0002] Radio Frequency Identification Technology RFID (Radio Frequency IDentification), also known as electronic tags, is a communication technology that can identify specific targets and read and write related data through radio signals without establishing mechanical or optical contact between the identification system and specific targets. [0003] At present, passive RFID tags are the mainstream in the market, because they have the advantages of low price and no power supply. When applied, the internal identification chip of the RFID tag is driven by the electromagn...

AI Technical Summary

Problems solved by technology

[0007] 1. High cost: all need to be equipped with expensive machinery and equipment, the equipment cost is about tens of millions to 100 million yuan, which is used to print or etch the antenna on the plastic film or paper substrate

In addition, high-cost consumables such as silver glue and high pollution treatment costs caused by etching have caused the unit price of radio frequency tag antennas to remain high.

[0008] 2. Low qualification rate: printing materials such as silver colloidal sputtering have a granular structure, and their conductivity is not as good as that of continuous conductor metal materials, and the printed antenna is prone to fracture and failure

The etching method is due to underexposure or overexposure, etc., resulting in poor conductivity and discontinuity of the antenna

[0009] 3. Low electrical accuracy: The radio wave characteristics such as antenna impedance, due to factors such as the thickness of silver glue and uneven etching, cause uneven distribution of conductance and magnetic conductance, resulting in errors such as antenna frequency drift and impedance mismatch, making the accuracy Difficult to control, increased failure rate

[0010] 4. Low durability: the silver glue of silver printing volatilizes

The corrosion of the etched circuit makes it difficult for the RFID tag to be stocked and the operating time is not long.

[0011] 5. High customization cost: According to the characteristic requirements of the customer's application landmarks, such as frequency drift, group resistance change, etc., it is necessary to make a screen plate for silver printing or etching the antenna. After the actual test, the apparent deviation Quantity, make the screen again and then go through silver printing, etching, and testing

Repeated experiments like this, the cost of customization remains high, and the goal of single material preparation and single inventory cannot be achieved

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