CN103746182A

CN103746182A - Process for printing antenna on surface of radio frequency module

Info

Publication number: CN103746182A
Application number: CN201410008810.1A
Authority: CN
Inventors: 廖富江
Original assignee: E-CREATIVE TECHNOLOGY Ltd
Current assignee: E-CREATIVE TECHNOLOGY Ltd
Priority date: 2014-01-09
Filing date: 2014-01-09
Publication date: 2014-04-23

Abstract

The invention relates to the technical field of antenna manufacturing, in particular to a process for printing an antenna on the surface of a radio frequency module. The process comprises the steps of firstly manufacturing a radio frequency module, wherein an IC (integrated circuit) chip is contained in the radio frequency module; connecting an electrode of the IC chip in the radio frequency module by modes of laser punching and conductive object plating, so the aim that the electrode of the IC chip extends to the surface of the radio frequency module is realized; then printing an antenna pattern on the surface of the radio frequency module by a screen, thus obtaining the antenna communicated with the IC chip on the surface of the radio frequency module, and finally attaching a protection film for preventing oxidation and damage, so a finished product is obtained. The antenna is printed on the surface of the radio frequency module by the screen, and the product is developed to be smaller, lighter and thinner by using electronic products; the thickness and precision can both achieve the micrometer level; the process realizes the technical advantages of high speed, high precision and no pollution and the possibility of large-scale industrialization, accords with industrial utilization and has well economic and social benefits.

Description

Antenna is printed on the lip-deep technique of radio frequency module

Technical field

The present invention relates to antenna manufacturing technology field, especially relate to radio frequency module antenna manufacturing technology field.

Background technology

Along with current wireless electronic product towards less, gentlier, thinner future development, various extra small slim radio frequency module chips are widely used, as the identification card of radio-frequency (RF) identification, can make employee be entered the part that building is pinned, the place of goods can be followed the trail of in warehouse, radio frequency transponder on automobile also can be used for imposing the expense in travelling expenses or parking lot, radio-frequency (RF) tag also can invest the upper convenient identification of livestock and watch foster management, some radio-frequency (RF) tag also can be attached on clothing, personal effects, even within implant into body.In the long run, particularly the market of high frequency long-distance electronic tag (UHF RFID) and active radio frequency module chip (Active RFID) will be ripe gradually within the coming years for radio frequency module chip (RFID), be again then a market with wide market prospects and huge capacity.

At present, the manufacturing process of traditional RFID label antenna mainly contains four kinds: copper conductor coiling RFID label antenna, and RFID label antenna is manufactured in electro-coppering, and RFID label antenna is manufactured in electrically conductive ink printing RFID label antenna and metal aluminum foil etching.According to known technology known they respectively have restriction extensive use factor: the process program of copper conductor coiling RFID label antenna is not only limited to size and the wire circle of RFID label antenna in actual production, but also be limited to the pressure-acting in packaging technology, the conductor spacing of copper conductor coiling RFID label antenna is destroyed, make design load and the theoretical value of copper conductor coiling RFID label antenna depart from very large, affect the most at last the inductance value of copper conductor coiling RFID label antenna, meanwhile, its range of application also has limitation.

The process program of RFID label antenna is manufactured in electro-coppering, because investment of production is large, cycle is long, waste liquid intractable problem, add these requirements such as the coating distributing homogeneity of electro-coppering manufacture RFID label antenna, the fastness that coating is combined with base material PET and analog, further increased the difficulty of electro-coppering manufacture RFID label antenna technique.

The process program of conventional electrically conductive ink printing RFID label antenna, its defect is that resistivity is very large, precision reaches micron level; Secondly, the antenna of electrically conductive ink printing RFID label can not bend, and resistance to bending is poor; They are three years old, surface printing quality, the uniformity of ink film thickness, the subsequent handling of electrically conductive ink printing RFID label antenna China ink layer mounts these requirements such as the pass key control of RFID label chip, further increased the difficulty of electrically conductive ink printing RFID label antenna technique.

The process program of RFID label antenna is manufactured in metal aluminum foil etching, its shortcoming is that cost is high, precision is low, label sizes is large, efficiency is low, contaminated environment, label ground are single, the environment friendly such as the anti-metallic shield of tag application field finite sum, waterproof, anti-folding are poor, and this has also restricted the extensive use that RFID label antenna technique is manufactured in metal aluminum foil etching.

The applicant is because defect and the inconvenience that above-mentioned known RFID label antenna technique is made, the spirit of adhering to research and innovation, keeping on improving, utilize professional eye and professional knowledge, proposed one and met industry utilization, the antenna that is conducive to improving production efficiency and quality is printed on the lip-deep technique of radio frequency module.

Summary of the invention

The object of the invention is to overcome the defect of prior art, a kind of optimization, high-end process program are provided, meet industry utilization, the antenna that is conducive to improving production efficiency and quality is printed on the lip-deep technique of radio frequency module.

For achieving the above object, the present invention adopts following technical scheme:

Antenna is printed on the lip-deep technique of radio frequency module, and this technique first completes radio frequency module and makes, and radio frequency module includes IC chip; Then the electrode that is connected the IC chip in radio frequency module by laser drilling with the mode of electroplating the property led thing, the electrode of realizing IC chip extends to radio frequency module surface; Then on radio frequency module surface by silk screen printing antenna pattern, can on radio frequency module surface, obtain and the antenna of IC chip conductive communication, finally stick anti-oxidation and impaired diaphragm, obtain finished product.

Described silk screen is first sensitization mask material to be coated on screen fabric, then covers on sensitization mask material by mask plate, through illumination, the antenna pattern on mask plate is replicated on screen fabric, and antenna pattern is Printed Windows.

Described radio frequency module surface has referred to compound and the analog surface of protection chip effect.

The present invention is the scheme that high-end screen printing technique that a kind of precision of proposing in view of the defect of four kinds of known traditional RFID label antenna manufacturing process and inconvenience and thickness all reach micron level is manufactured radio frequency module RFID label antenna, realization antenna wires reticulated printing on radio frequency module surface, be beneficial to wireless electronic product towards less, gentlier, thinner future development; This technique can realize at a high speed, the possibility of high accuracy, free of contamination technical advantage and extensive industrialization, meets industry utilization, is conducive to improving production efficiency and quality, has good economic benefit and social benefit.

accompanying drawing explanation:

Accompanying drawing 1 is printed on the lip-deep structural representation top view of radio frequency module for antenna of the present invention;

Accompanying drawing 2 is printed on the lip-deep perspective view of radio frequency module for antenna of the present invention.

embodiment:

Below in conjunction with accompanying drawing, the present invention is further described:

Consult shown in Fig. 1,2, the present invention is printed on the lip-deep technique of radio frequency module about a kind of antenna, and this technique first completes radio frequency module 1 and makes, and radio frequency module 1 includes IC chip 3; Then the electrode that is connected the IC chip 3 in radio frequency module by laser drilling with the mode of electroplating the property led thing 2, the property led thing 2 has satisfactory electrical conductivity, and the electrode of realizing IC chip 3 extends to radio frequency module surface; Then on radio frequency module surface by silk screen printing antenna pattern, silk screen is first sensitization mask material to be coated on screen fabric, by mask plate, cover on sensitization mask material again, through illumination, make to be subject to the sensitization mask material of illumination to harden, water washes the part sensitization mask material not being irradiated by light again, can make the antenna pattern on mask plate be replicated on screen fabric, and antenna pattern is Printed Windows; Then; by scraper plate, the antenna substrate of the ink properties such as gold, silver, copper, aluminium is coated onto on silk screen; Printed Windows through silk screen is printed onto antenna pattern on radio frequency module 1 surface; can on radio frequency module surface, obtain the antenna 4 with IC chip 3 conductive communication; finally stick anti-oxidation and impaired diaphragm, obtain finished product.In the present invention, for radio frequency module 1 surface, referred to compound and the analog surface of protection chip effect, as polymer, shell body etc.Silk screen can be by the nickel foil paper tinsel net forming of holing, structural good.

The present invention realizes antenna wires reticulated printing on radio frequency module surface, and antenna precision and thickness all reach micron level, be beneficial to wireless electronic product towards less, gentlier, thinner future development; This technique can realize at a high speed, the possibility of high accuracy, free of contamination technical advantage and extensive industrialization, meet industry utilization, be conducive to improving production efficiency and quality, be applicable to various extra small slim radio frequency module chip application, as arrangement of components such as ultrathin mobile phone, touch-screen, digital camera, Digital Video and other 3C Products, there is good economic benefit and social benefit.

Claims

1. antenna is printed on the lip-deep technique of radio frequency module, it is characterized in that: this technique first completes radio frequency module (1) and makes, and radio frequency module (1) includes IC chip (3); Then the electrode that is connected the IC chip (3) in radio frequency module by laser drilling with the mode of the plating property led thing (2), the electrode of realizing IC chip (3) extends to radio frequency module surface; Then on radio frequency module (1) surface by silk screen printing antenna pattern, can on radio frequency module surface, obtain and the antenna (4) of IC chip (3) conductive communication, finally stick anti-oxidation and impaired diaphragm, obtain finished product.

2. antenna according to claim 1 is printed on the lip-deep technique of radio frequency module, it is characterized in that: described silk screen is first sensitization mask material to be coated on screen fabric, by mask plate, cover on sensitization mask material again, through illumination, antenna pattern on mask plate is replicated on screen fabric, and antenna pattern is Printed Windows.

3. antenna according to claim 1 is printed on the lip-deep technique of radio frequency module, it is characterized in that: described radio frequency module (1) surface has referred to compound and the analog surface of protection chip effect.