CN106372708A - RFID electronic tag commonly used by metal, nonmetal and liquid and made of laminated ceramic layers, and manufacturing method - Google Patents
RFID electronic tag commonly used by metal, nonmetal and liquid and made of laminated ceramic layers, and manufacturing method Download PDFInfo
- Publication number
- CN106372708A CN106372708A CN201610735431.1A CN201610735431A CN106372708A CN 106372708 A CN106372708 A CN 106372708A CN 201610735431 A CN201610735431 A CN 201610735431A CN 106372708 A CN106372708 A CN 106372708A
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- Prior art keywords
- antenna
- ceramic
- layer
- tag
- electronic tag
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/0772—Physical layout of the record carrier
- G06K19/07722—Physical layout of the record carrier the record carrier being multilayered, e.g. laminated sheets
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/02—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the selection of materials, e.g. to avoid wear during transport through the machine
- G06K19/022—Processes or apparatus therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07773—Antenna details
- G06K19/07786—Antenna details the antenna being of the HF type, such as a dipole
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses an RFID electronic tag commonly used by metal, nonmetal and liquid and made of laminated ceramic layers. The electronic tag comprises ground dielectric layers used for improving identification performance, ceramic layers laminated on the upper sides of the ground dielectric layers, an antenna formed on the upper sides of the ceramic layers, and a Tag chip arranged on the upper sides of the ceramic layers and electrically connected with the antenna, wherein an insulated layer is arranged outside the Tag chip and the antenna. The invention discloses a manufacturing method for the RFID electronic tag commonly used by the metal, the nonmetal and the liquid and made of the laminated ceramic layers. According to the electronic tag and the method, the ceramic layers with high dielectric constants are used, so that an extremely small Tag can be made and the Tag size is reduced; the ground dielectric layers are laminated, so that the electronic tag has excellent identification performance on the metal surface and can be used on medical equipment; and the electronic tag has heat-resistant and waterproof performance, so that the electronic tag is suitable for medical infusion management and high-temperature liquid environments.
Description
Technical field
The invention belongs to rfid tag technical field, more particularly, to a kind of using ceramic laminated making metal, nonmetallic and
Rfid electronic tag and manufacture method that liquid shares.
Background technology
Usually, rfid system is by tag, reader (reader) and to provide the computer apparatus of data processing to constitute.
Reader (reader) transmits microwave the microwave accepting from tag to tag, processes this signal and stores information, tag has
The object information that oneself against.
Tag can also be distinguished with saw type with chip type, and according to itself there being non-transformer, also divides into active
(active) distinguish with passive-type (passive).Identify it would be desirable to utilize electromagnetic wave to realize remote tag.This is should
With the remote object of identification, animal and people, using the electromagnetism in the radio-frequency band of electromagnetic spectrum or electrostatic coupling
The technology closed.
The object information that against tag sends signal by its chip by the antenna of tag, in remote receptor
(reader) receive signal, and necessary information is sent to computer and process.Against all objects of tag, Wo Menke
To automatically confirm that whenever and wherever possible and to follow the trail of.
As above-mentioned, rfid can replace conventional bar code system, is the core technology realizing wireless telecommunications generalization,
The circulations such as the storage of commodity, transmission and tracking and logistics field, library automation, pay by mails, many industrial fields such as security personnel
Generally applicable.
Rfid is that reader label is transmitted, the microwave energy receiving from microwave, the meeting activation obtaining, activation
Label is built-in read-write transmission information.Now, passive-type rfid can obtain the energy in the microwave receiving, active interior
Put is the battery of the different acquisition energy.
It is the frequencies such as 135khz, 13.56mhz, 860-960mhz and 2.45ghz used in rfid now, frequency is got over
High recognition speed is faster and more sensitive to environment.
This rfid tag, has produced a variety of forms at present, and is attached to a lot of space objects, but these
Rfid tag is difficult to reduce antenna size, if the size reducing antenna by force can reduce recognition performance.And
Near metal material, after being heated, discrimination substantially reduces rfid chip, leads to metal tag and nonmetallic tag separately to be made
Problem.Product and in high temperature or phenomenon that used in liquid, tag is used separately all exists used in general room temperature
Many loaded down with trivial details and troubles are brought in actually used.
During rfid system is constituted, rfid tag is by the microchip (ic) storing each article intrinsic information with information transmission
Antenna composition to reader.The rfid system in particularly hyperfrequency (uhf) region is to launch using by read write line (reader)
Electric wave, to tag, then transmits intrinsic information to the backscatter mode (backscatter) of read write line from tag.Such anti-
To in scattering method, the scattering cross section of antenna plays an important role to the performance of tag antenna.Wherein scattering cross section has area
Unit, when the distance when between read write line and tag is the same, scattering cross section is proportional to the power that accepts of read write line.
The requirement of rfid label is:
1) little physics size
2) relatively a little bigger rcs(radar cross section)
3) isotropic directivity scattering
4) electromagnetic property insensitive (referring generally to dielectric constant, pcrmeability and electrical conductivity) to the object of attachment
5) easy with the impedance conjugate impedance match of chip, and make simple.
6) unrelated measurement direction high efficiency (small loss)
7) low cost.
Common chip impedance (impedance) resistance (resistance, r, real part) part and reactance
(reactance, x, imaginary part) part forms.
Although the product attribute that different vendor makes has not with display in report: general chip
Resistance is 3 ~ 100 in 900mhz region, and reactance is -300 ~ -100.The rf front-end of general tag chip is by Schottky
Diode (shottky diode) and the rectification circuit composition using capacitor, therefore its impedance has negative value and (has appearance
Amount property).
In order to such chip impedance conjugate impedance match, the impedance of the antenna bound therewith, also to take its conjugate complex number, because
Reactance in the impedance of this antenna will have on the occasion of (having inductivity (inductivity)).
Rfid tag is made up of microchip (microchip) and antenna.When read write line emitting radio waves are to tag, micro- core
Piece can change its impedance, thus changing the electric energy that read write line is arrived in transmitting (scattering).At this moment read write line can distinguish the electricity receiving
Energy size, thus the intrinsic information of identification chip.The intrinsic information that i.e. chip has is to drive rcs by the change of chip impedance
Change and then be sent to the result of read write line.Typically, the impedance of chip will change in short circuit with the state of integrating.
Content of the invention
For solving the problems referred to above present in prior art and practical situation, the present invention provides one kind to utilize ceramic laminated system
Make metal, rfid electronic tag that nonmetallic and liquid shares, it can reduce the size of rfid tag, is reducing the feelings of size
Under condition, increase its recognition performance, tag in room temperature and high temperature or can be suitable in a liquid.
The present invention employs the following technical solutions realization, and one kind is using ceramic laminated making metal, nonmetallic and liquid
Shared rfid electronic tag, including ground dielectric layer in order to improve recognition performance, ground dielectric layer upside lamination
Ceramic layer, the antenna in the formation of the upside of ceramic layer, the tag chip put in the upside of ceramic layer and electrically connect with antenna, institute
State and be provided with insulating barrier outside tag chip and antenna.
Preferably, described antenna is provided with the lateral extension laterally extending.
Preferably, described ceramic layer and ground dielectric layer adjacent side face are provided with through hole, described antenna lateral extension
Through described through hole.
Preferably, described antenna is provided with, in surrounding side, the Side extensions laterally extending.
Preferably, described antenna is dipole antenna.
Preferably, described tag chip positioning in close on ceramic layer or one jiao.
Preferably, described tag chip is located at the center of ceramic layer.
Preferably, described antenna is symmetrical set centered on tag chip.
The present invention discloses a kind of using ceramic laminated make metal, rfid electronics mark that nonmetallic and liquid shares
Sign and manufacture method, comprise the following steps:
1) making of ceramic layer and ground dielectric layer；
2) antenna is formed on ceramic layer；
3) form the ceramic layer of shape of antenna and ground dielectric layer lamination becomes polylayer forest, the side of antenna or central part dress
Tag chip；
4) form insulating barrier outside tag chip and antenna；
5) the product sintering to lamination: fire making after ground dielectric layer and ceramic layer lamination, or first each for each layer
Pasting hacks are recycled to be pasted together making from after fire；
6) set up together with epoxy resin decorative thread be combined with each other with layer.
Preferably, the manufacture method of described step 1) ceramic layer and ground dielectric layer is:
The making of ground dielectric layer is to make mud using magnetic material, makes the template with suitable thickness of knife coating
Layer, or add magnetic material during making ceramic template layer；The making of ground dielectric layer is using magnetic material
Make mud, then make the template layer with suitable thickness with knife coating, or add during making ceramic template layer
Magnetic material.
The present invention is a kind of to be provided with and can be carried using ceramic laminated making metal, rfid electronic tag nonmetallic and that liquid is shared
The ground dielectric layer of high recognition performance；Ceramic layer on the upside of the dielectric layer of ground；The dipole antenna being formed on the upside of ceramic layer；
The tag chip electrically connecting with the antenna on the upside of ceramic layer；Fire making after ground dielectric layer and ceramic layer lamination, or first handle
Each layer recycles pasting hacks to be pasted together making after each firing, and has the ceramic layer of high-k (dielectric constant)
The upper shape forming antenna.
The present invention by using high-k ceramic layer so that minimum shape tag can be made, reduce the size of tag.
And lamination ground dielectric layer, therefore also has outstanding recognition performance so that can use in medical device in metal surface.
Because also heat-resisting, water resistance, it is also applied for medical infusion management and high-temp liquid environment.
Brief description
Fig. 1 be the present invention a kind of using ceramic laminated make metal, rfid electronic tag that nonmetallic and liquid shares
Schematic perspective view.
Fig. 2 be the present invention a kind of using ceramic laminated make metal, rfid electronic tag that nonmetallic and liquid shares
Schematic diagram side view.
Fig. 3 be the present invention a kind of using ceramic laminated make metal, rfid electronic tag that nonmetallic and liquid shares
Perspective view.
Fig. 4 be the present invention a kind of using ceramic laminated make metal, rfid electronic tag that nonmetallic and liquid shares
The flow chart of manufacture method.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of using ceramic laminated make metal, rfid electronics mark that nonmetallic and liquid shares
Sign, including the ground dielectric layer 1 in order to improve recognition performance, ground dielectric layer 1 upside lamination ceramic layer 2, in pottery
Layer 2 upside formed antenna 5, the tag chip 4 put in the upside of ceramic layer 2 and electrically connect with antenna 5, binding chip with
Use epoxy resin (epoxy) or ceramic cover seal afterwards, form insulating barrier 3.
Ground dielectric layer 1 can improve the identification ability in metal surface for the tag, and ground dielectric layer 1 can utilize au, al,
The conductive material such as cu, ag make.Silver paste is utilized to make " layer " type in the present embodiment, it is possible to use other closed materials
Layer.
Ceramic layer 2 ceramic making of high-k.Dielectric constant can determine according to the species of product, that is, on demand
Arbitrarily can select in the range of 10-160.
In the present embodiment, after ground dielectric layer 1 is moulding with ceramic layer 2 lamination by fire glutinous together with.Can also each layer
Sticked together with the adhesive meanses such as sticker (electrically conducting transparent adhesive tape or welding, brazing) after each firing.
Variation can make above-mentioned thickness, therefore can integrally reduce the size of rfid tag, realize miniaturization.This reality
Apply two layers in scheme, the thickness of the polylayer forest after lamination should select to be effective in the range of 100 μm of -100mm.If selected
Thickness can reduce work efficiency less than 100 μm, if thickness will seem a little heavy more than 100mm, weaken miniaturization
Advantage.
Antenna 5 is made using silk screen printing (silk printing) or bat printing (pad printing) in ceramic layer 2 upside
It is an effective method.As shown in Figure 1, Figure 2, Figure 3 shows, antenna 5 is symmetrical on the upside of ceramic layer, and antenna 5 extends in side
Form antenna lateral extension 6, described ceramic layer 2 and ground dielectric layer 1 adjacent side face are provided with through hole 7, described antenna side
Face prolongation passes through described through hole 7.
Antenna 5 can also be different with the present embodiment, is the shape ornaments that crawl.
Antenna 5 is taking, from the coupling part of chip 4 to prolongation, crawl shape or symmetrical shape.So can be
The length of antenna is maximized in certain area.
Tag chip 4, as shown in figure 1, being located at the center of ceramic layer 2, in this case, antenna 5 is pressed symmetrical
Form extends to the both sides of ceramic layer.In this case, the length of antenna can adjust, so can be by changing antenna (5)
Shape thus changing the length of antenna, make different rfid tag, for different field.
Tag chip (4) can also be located at a jiao of ceramic layer.It is preferably mounted in the neighbour on one side of ceramic layer (2) of tetragon
Connect region.The contact portion of so chip of antenna (5) also is located at the neighboring region on one side of ceramic layer, and then antenna is from this
Side extends to another side by zigzag fashion (zigzag).
Antenna stack insulating barrier (printing, or sheet form) protection equipped with tag chip.
As shown in figure 4, the present invention discloses a kind of using ceramic laminated make metal, nonmetallic and liquid shares
The manufacture method of rfid electronic tag, comprises the following steps:
1) first prepare the ceramic layer 2 of tetragon and the ground dielectric layer 1 that dielectric constant is 10-160；
2) antenna 5 is formed on ceramic layer 2；
3) form the ceramic layer 2 of shape of antenna and ground dielectric layer 1 lamination becomes polylayer forest, the side of antenna 5 or central part
Dress tag chip 4；
4) form insulating barrier 3 in tag chip 4 and antenna 5 outside；
5) the product sintering to lamination: fire making after ground dielectric layer and ceramic layer lamination, or first each for each layer
Pasting hacks are recycled to be pasted together making from after fire；
6) set up together with epoxy resin decorative thread be combined with each other with layer.
The manufacture method of described step 1) ceramic layer and ground dielectric layer is:
The making of ground dielectric layer is to make mud using magnetic material, makes the template with suitable thickness of knife coating
Layer, or add magnetic material during making ceramic template layer；The making of ground dielectric layer is using magnetic material
Make mud, then make the template layer with suitable thickness with knife coating, or add during making ceramic template layer
Magnetic material.
Finally it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention,
Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, it still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to wherein some technical characteristics.
All any modification, equivalent substitution and improvement within the spirit and principles in the present invention, made etc., should be included in the present invention's
Within protection domain.
Claims (10)
1. a kind of using ceramic laminated make metal, rfid electronic tag that nonmetallic and liquid shares is it is characterised in that include
In order to improve recognition performance ground dielectric layer, ground dielectric layer upside lamination ceramic layer, ceramic layer upside shape
The antenna becoming, the tag chip put in the upside of ceramic layer and electrically connected with antenna, are provided with outside described tag chip and antenna
Insulating barrier.
2. according to claim 1 using ceramic laminated make metal, rfid electronic tag that nonmetallic and liquid shares,
It is characterized in that, described antenna is provided with the lateral extension laterally extending.
3. according to claim 2 using ceramic laminated make metal, rfid electronic tag that nonmetallic and liquid shares,
It is characterized in that, described ceramic layer and ground dielectric layer adjacent side face are provided with through hole, and described antenna lateral extension passes through
Described through hole.
4. according to claim 2 using ceramic laminated make metal, rfid electronic tag that nonmetallic and liquid shares,
It is characterized in that, described antenna is provided with, in surrounding side, the Side extensions laterally extending.
5. according to claim 1 using ceramic laminated make metal, rfid electronic tag that nonmetallic and liquid shares,
It is characterized in that, described antenna is dipole antenna.
6. according to claim 1 using ceramic laminated make metal, rfid electronic tag that nonmetallic and liquid shares,
It is characterized in that, described tag chip positioning in close on ceramic layer or one jiao.
7. according to claim 1 using ceramic laminated make metal, rfid electronic tag that nonmetallic and liquid shares,
It is characterized in that, described tag chip is located at the center of ceramic layer.
8. according to claim 7 using ceramic laminated make metal, rfid electronic tag that nonmetallic and liquid shares,
It is characterized in that, described antenna is symmetrical set centered on tag chip.
9. a kind of using ceramic laminated make metal, rfid electronic tag that nonmetallic and liquid shares and manufacture method, it is special
Levy and be, comprise the following steps:
1) making of ceramic layer and ground dielectric layer；
2) antenna is formed on ceramic layer；
3) form the ceramic layer of shape of antenna and ground dielectric layer lamination becomes polylayer forest, the side of antenna or central part dress
Tag chip；
4) form insulating barrier outside tag chip and antenna；
5) after ground dielectric layer and ceramic layer lamination, making is fired to the product sintering of lamination, or first each layer each
Pasting hacks are recycled to be pasted together making after firing；
6) set up together with epoxy resin decorative thread be combined with each other with layer.
10. according to claim 9 using ceramic laminated make metal, rfid electronic tag that nonmetallic and liquid shares
Manufacture method it is characterised in that: the manufacture method of described step 1) ceramic layer and ground dielectric layer is:
The making of ground dielectric layer is to make mud using magnetic material, makes the template with suitable thickness of knife coating
Layer, or add magnetic material during making ceramic template layer；The making of ground dielectric layer is using magnetic material
Make mud, then make the template layer with suitable thickness with knife coating, or add during making ceramic template layer
Magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610735431.1A CN106372708B (en) | 2016-08-26 | 2016-08-26 | RFID electronic tag manufactured by using ceramic lamination and used for sharing metal, nonmetal and liquid and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610735431.1A CN106372708B (en) | 2016-08-26 | 2016-08-26 | RFID electronic tag manufactured by using ceramic lamination and used for sharing metal, nonmetal and liquid and manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106372708A true CN106372708A (en) | 2017-02-01 |
| CN106372708B CN106372708B (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610735431.1A Active CN106372708B (en) | 2016-08-26 | 2016-08-26 | RFID electronic tag manufactured by using ceramic lamination and used for sharing metal, nonmetal and liquid and manufacturing method |
Country Status (1)
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| Publication number | Publication date |
|---|---|
| CN106372708B (en) | 2023-08-08 |
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