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RFID label and preparation method

An RFID tag and antenna technology, applied in the field of RFID electronic tags, to achieve the effect of mature and simple process

Pending Publication Date: 2017-12-08
上海奕尔达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems existing in the reliability of the existing RFID water-washable electronic tags, a new RFID water-washable electronic tag solution is needed to improve the durability and reliability of RFID water-washable electronic tags

Method used

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  • RFID label and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0146] see Figure 16 , the water-washable RFID tag provided by this example is mainly composed of antenna 100 (such as figure 1 shown), chip 101, cofferdam metal ring 102a, buffer sheet 103, reinforcing plate 104, and thermosetting adhesive 105 are processed and combined. Its specific preparation process is as follows (as Figure 17 shown):

[0147] In step P111, the buffer sheet 103 and the reinforcement 104 are successively pasted on the opposite side of the chip mounting position on the finished antenna 100; when the buffer sheet 103 is pasted, the notches on it correspond to the signal lines of the antenna; on the PI buffer sheet After the 103 is aligned and mounted, it is pressed by high temperature and high pressure.

[0148] Step P112 , soldering the chip 101 and the cofferdam metal ring 102a to the corresponding positions of the antenna 100 by SMT process.

[0149] In step P113, after the soldering is completed, the chip is strengthened and protected by dispensing...

Embodiment 2

[0152] see Figure 18 , The RFID tag provided in this example is mainly composed of an antenna 200, a chip 101, a cofferdam metal ring 102a, a buffer sheet 103, a reinforcing plate 104, and a thermosetting adhesive 105.

[0153] The concrete preparation process of this RFID label is as follows (as Figure 19 shown):

[0154] Step P211, in the finished antenna 200 (such as figure 2 As shown) the reverse side of the upper chip mounting position is pasted with buffer sheet 103 and reinforcement 104 successively; when bonding buffer sheet 103, make the notch on it correspond to the signal line of the antenna; after PI buffer sheet 103 is aligned and mounted , and then pressed under high temperature and high pressure.

[0155] Step P212, welding the chip 101 and the cofferdam metal ring 102a to the corresponding position of the antenna 200 through the SMT process;

[0156] In step P213, after the welding is completed, the chip is strengthened and protected by dispensing and cu...

Embodiment 3

[0159] see Figure 20 , the RFID tag provided in this example is mainly composed of antenna 300, chip 101, cofferdam metal ring 102a, buffer sheet 103, reinforcing plate 104, and thermosetting adhesive 105.

[0160] The concrete preparation process of this RFID label is as follows (as Figure 21 shown):

[0161] Step P311, in the finished antenna 300 (such as image 3 As shown) the reverse side of the upper chip mounting position is pasted with buffer sheet 103 and reinforcement 104 successively; when bonding buffer sheet 103, make the notch on it correspond to the signal line of the antenna; after PI buffer sheet 103 is aligned and mounted , and then pressed under high temperature and high pressure.

[0162] In step P312, solder the chip 101 and the metal ring 102a of the cofferdam to the corresponding position of the antenna 300 by SMT process.

[0163] In step P313, after the soldering is completed, the chip is strengthened and protected by dispensing and curing the hea...

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Abstract

The invention discloses an RFID label and preparation method. According to the scheme, a polyimide covering film covers a flexible substrate antenna layer, and a chip and an antenna are welded, thereby ensuring stability, reliability, alkaline washing resistance, high temperature resistance and durability of performance in label application. The scheme can be applied to high frequency band labels, ultrahigh frequency band labels or dual-band labels of the above two frequencies. The RFID label adopts a mature and simple process, and is suitable for volume production.

Description

technical field [0001] The invention relates to the field of radio frequency technology, in particular to RFID electronic tag technology. Background technique [0002] RFID radio frequency identification is a non-contact automatic identification technology. It automatically identifies the target object and obtains relevant data through radio frequency signals. The identification work does not require manual intervention and can work in various harsh environments. RFID technology can identify high-speed moving objects and can identify multiple electronic tags at the same time. The operation is fast and convenient, and it is frequently used in supermarkets. [0003] As a special label, the RFID washing label has high requirements on the reliability of the label, especially the bending resistance, in view of the particularity of the use environment. [0004] At present, the existing RFID water-washable electronic tags are manufactured by flip-chip on the antenna, then wrapped ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/02G06K19/077
CPCG06K19/025G06K19/0772
Inventor 左军勇曹振辉
Owner 上海奕尔达科技有限公司
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