CN106410415A - Near field communication antenna module and manufacturing method of the same - Google Patents
Near field communication antenna module and manufacturing method of the same Download PDFInfo
- Publication number
- CN106410415A CN106410415A CN201610309498.9A CN201610309498A CN106410415A CN 106410415 A CN106410415 A CN 106410415A CN 201610309498 A CN201610309498 A CN 201610309498A CN 106410415 A CN106410415 A CN 106410415A
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- Prior art keywords
- coil pattern
- field communication
- magnetic sheet
- magnetic
- communication aerial
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Details Of Aerials (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
A conceived embodiment provides a near field communication (NFC) antenna module and a manufacturing method of the same. The near field communication (NFC) antenna module comprises a laminate member formed from a plurality of magnetic sheets through piling, wherein each magnetic sheet is provided with a coil pattern at the edge of the magnetic sheet.
Description
This application claims submit in Korean Intellectual Property Office on July 28th, 2015
The priority of 10-2015-0106714 korean patent application and rights and interests, in the disclosure of this korean patent application
Hold and be incorporated herein by this.
Technical field
Present inventive concept be related to a kind of have the near-field communication aerial module improving Anneta module efficiency and its
Manufacture method.
Background technology
Near-field communication (NFC) (a kind of in the frequency range of 13.56MHz be less than 10cm distance in
The two-way wireless communication technology using) it has been mainly used as data exchange data certification (approval)
Means.
Anneta module used in near-field communication can be mainly made up of coiler part and magnetic sheet part.Coil
Part is formed as the pattern on printed circuit board (PCB), and can be used for converting electrical signals to electromagnetic signal.Magnetic
Piece part may be provided on the rear surface of coil, and can be used for preventing the identification that led to due to demagnetizing field away from
From reduction.
Anneta module used in the near-field communication according to prior art can be by manufacturing coiler part respectively
Use after with magnetic sheet part and then these parts being bonded to each other.
Content of the invention
The one side of present inventive concept provides a kind of effect that can be easily manufactured and improve Anneta module
The near-field communication aerial module of rate and its manufacture method.
According to the one side of present inventive concept, near-field communication (NFC) Anneta module may include：By heap
The laminate that folded multiple magnetic sheets are formed；It is formed at the coil pattern on each magnetic sheet in described magnetic sheet, its
In, coil pattern is formed at the edge of magnetic sheet.
According to the another aspect of present inventive concept, a kind of side manufacturing near-field communication (NFC) Anneta module
Method may include：Prepare multiple magnetic raw cooks；Side along each the magnetic raw cook in described magnetic raw cook
Edge forms coil pattern；Stack multiple magnetic raw cooks；Sinter the magnetic raw cook of multiple stackings.
Brief description
By the detailed description carrying out below in conjunction with the accompanying drawings, above and other aspect of present inventive concept, spy
Levy and further advantage will be more clearly understood, wherein：
Fig. 1 is the perspective of the Anneta module schematically showing the exemplary enforcement according to present inventive concept
Figure；
Fig. 2 is the decomposition diagram of Fig. 1；
Fig. 3 is the sectional view intercepting along Fig. 1 line A-A '；
Fig. 4 is the side view of the B direction viewing along Fig. 1；
Fig. 5 is the sectional view illustrating to manufacture the method for Anneta module shown in Fig. 1；
Fig. 6 is the Anneta module schematically showing the another exemplary embodiment according to present inventive concept
Sectional view；
Fig. 7 is the sectional view illustrating to manufacture the method for Anneta module shown in Fig. 6.
Specific embodiment
Hereinafter, the embodiment of present inventive concept described below with reference to the accompanying drawings.
However, present inventive concept can be implemented in different forms, should not be construed as being limited to
This specific embodiment illustrating.More precisely, providing these embodiments, so that the disclosure will be thorough
Bottom and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art.
Throughout the specification it will be appreciated that, when the unit of such as layer, region or wafer (substrate)
Part be referred to as " positioned at " another element " on ", " being connected to " another element or " being attached to "
During another element, described element can directly " positioned at " another element " on ", directly " being connected to "
Another element or direct " being attached to " another element, or there may be other between them
Element.By contrast, when element be referred to as " being located immediately at " another element " on ", " directly connect
It is connected to " another element or during " being bonded directly to " another element, can not exist between them
Other elements or layer.Identical label indicates identical element all the time.As used herein, term
"and/or" includes any and whole combination in one or more associated Listed Items.
It will be apparent that although here term " first ", " second ", " 3rd " etc. can be used
Various components, assembly, region, layer and/or part to be described, but these components, assembly, region,
Layer and/or part should not be limited by these terms.These terms are only used for component, assembly, an area
Domain, layer or part are distinguished with another component, assembly, region, layer or part.Therefore, do not taking off
In the case of the teaching of exemplary embodiment, first component described below, first assembly, first
Region, ground floor or Part I can be referred to as second component, the second assembly, second area, the second layer
Or Part II.
For convenience of description, can here use space correlation term (for example, " and ... on ",
" above ", " ... under " and " below " etc.), to describe as illustrated
Individual element and the relation of other elements.It will be appreciated that in addition to the orientation shown in except in figure, space
Related term is intended to the different azimuth including device when using or operate.For example, if in figure
Device overturns, then be described as " " other elements or feature " on " element or " above "
Element will be positioned as " " described other elements or feature " under " or " below ".Therefore,
Term " ... on " can with reference to the accompanying drawings in the specific direction of device and comprise " ... on "
" ... under " two kinds of orientation.Device (can be ratated 90 degrees or be in it by other positioning
Its orientation), and respective explanations can be made to the descriptor of space correlation as used herein.
Term as used herein is only used for describing specific embodiment, and is not intended to limit present inventive concept.
Unless the context clearly dictates otherwise, otherwise singulative as used herein is also intended to including multiple
Number form formula.It will be further understood that ought be in this manual using term " inclusion " and/or "comprising"
When, enumerate and there is described feature, integer, step, operation, component, element and/or their group,
And be not precluded from exist or increase one or more further features, integer, step, operation, component,
Element and/or their group.
Hereinafter, structure of the present invention to be described the schematic diagram with reference to the embodiment illustrating present inventive concept
The embodiment thought.In the accompanying drawings, for example, due to manufacturing technology and/or tolerance, shown shape
Modification is predictable.Therefore, the embodiment of present inventive concept should not be construed as limited to here and shows
The given shape in the region going out, for example, is not only restricted to including the change due to manufacturing the shape leading to.
Below example also can be made up of one or a combination thereof.
The content of invention described below design can have multiple constructions, and here only proposes needs
Construction, but not limited to this.
Fig. 1 be schematically show the exemplary embodiment according to present inventive concept Anneta module saturating
View, Fig. 2 is the decomposition diagram of Fig. 1.
Fig. 3 is the sectional view that intercepts of line A-A ' along Fig. 1, and Fig. 4 is to see along the B direction of Fig. 1
The side view seen.
Referring to figs. 1 to Fig. 4, it is near-field communication (NFC) according to the Anneta module 1 of exemplary embodiment
Anneta module, and may include laminate 11, laminate 11 have be stacked on therein two or more
Individual magnetic sheet 10 and be arranged on magnetic sheet 10 each on coil pattern 20.
Magnetic sheet 10 can comprise magnetic-particle, and magnetic-particle may include metal dust, sheet metal and iron oxygen
At least one in body powder.
Metal dust and sheet metal may include from by iron (Fe), iron-silicon alloy (Fe-Si) alloy,
Iron-silicon-aluminum alloy (Fe-Si-Al) alloy, iron-silicon-chromium (Fe-Si-Cr) alloy and Ni-Fe-molybdenum
(Ni-Fe-Mo) at least one selecting in the group of alloy composition, but not limited to this.
Ferrite powder may include in nickel-zinc-copper (Ni-Zn-Cu) or manganese-zinc (Mn-Zn) at least
One kind, but not limited to this.
Can be used as magnetic sheet 10 according to the various magnetic sheets of prior art (as is generally known in the art).For example, root
Magnetic sheet 10 according to exemplary embodiment can manufacture as follows：Preparation comprises ferritic slurry to be formed
Raw cook, is then sintered to it.However, present inventive concept is not limited to this.
As shown in figure 3, concave part 30 can be formed in each of magnetic sheet 10.As making coil pattern
The concave part 30 in 20 spaces being disposed therein may be formed to have shape corresponding with coil pattern 20
Shape.
Coil pattern 20 can be formed by conductive material, and can be by each magnetic sheet in magnetic sheet 10
Concave part in printing conductive material and formed.
According to formation in the concave part 30 of magnetic sheet 10 for the coil pattern 20, according to exemplary reality
Will not occur to lead to the increase of thickness due to the presence of coil pattern 20 in the Anneta module 1 applying example.
For example, the thickness of Anneta module 1 can be identical with the thickness of laminate 11.
In the exemplary embodiment, concave part 30 may be formed in the edge of magnetic sheet 10.Therefore, recessed
Groove portion 30 can be formed according to the mode that its side surface opens wide, and therefore, is arranged on the line in concave part 30
The side surface of circular pattern 20 can outwards expose.
More specifically, the side of magnetic sheet 10 be may be provided at according to the coil pattern 20 of exemplary embodiment
Each in edge, rather than the inside of magnetic sheet 10, therefore magnetic sheet 10 and coil pattern 20 can be according to
Magnetic sheet 10 and coil pattern 20 are alternately located at the sandwich-format in the side surface of laminate 11
(sandwich form) is formed, as shown in Figure 1 and Figure 4.
Further, since the mode that coil pattern 20 outwards exposes according to its side surface is along magnetic sheet 10
Edge is arranged, and therefore magnetic sheet 10 can be provided only on that it is formed by coil pattern 20 and have quadrangle
The inside of shape and the lower section being arranged on coil pattern 20, and coil pattern 20 will not be arranged on
Outside.
Therefore, when magnetic field is produced due to coil pattern 20, the magnetic field that coil pattern 20 inwardly produces
May be formed in magnetic sheet 10, but the magnetic field that coil pattern 20 outwards produces is formed as leaking into air
In, rather than be formed in magnetic sheet 10.
It is arranged on the inside of magnetic sheet 10 in coil pattern 20 and therefore magnetic sheet 10 is also present in circuit diagram
In the case of the outside of case 20, the magnetic field that coil pattern 20 outwards produces may be formed in magnetic sheet 10.
In this case, because most of magnetic field may be formed in the laminate being wherein stacked with magnetic sheet 10,
It is possible that being difficult to emission magnetic field.
On the other hand, in the Anneta module 1 according to exemplary embodiment, coil pattern 20 is outside
The magnetic field being formed may leak in air.Therefore, this magnetic field may be formed to have the scope (journey of more extension
Degree), can be increased by the identification distance of this NFC antenna module 1.
Exemplary embodiment shows a case that coil pattern 20 has quadrangle form, but the present invention
The construction not limited to this of design.For example, the shape of coil pattern 20 can carry out various modifications, with right
Should be in the shape of magnetic sheet, for example, circle, ellipse, polygon etc..
Additionally, in the exemplary embodiment of present inventive concept, coil pattern 20 can be formed directly in
In the concave part 30 of magnetic sheet 10.Therefore, with using adhesive member, coil is adhered to existing on film
Technical method is compared, and the thickness of Anneta module can reduce, and manufacture process can simplify.
Additionally, can be multiple by stacking according to the Anneta module 1 of the exemplary embodiment of present inventive concept
Magnetic sheet 10 and formed, and the part of the coil pattern 20 being arranged in each magnetic sheet 10 can be by leading
Electric via 50 is connected to each other.
Therefore, coil pattern 20 can be with three-dimensional structure rather than to form two on a single plane
Dimension structure is formed.
In this manner it is achieved that when coil pattern 20 is formed with three-dimensional structure, coil pattern 20 each
The size of circle be formed as mutually the same, such as in two-dimensional structure due to coil pattern 20 density and
The resistance producing can significantly reduce.
Further, since using multiple magnetic sheets, and the quantity of the magnetic sheet 10 of controllable stacking, therefore,
The significantly high-caliber induced field of formation can be provided to have low-resistance Anneta module simultaneously.
Meanwhile, also can be arranged on there is no shape at least one of the two of laminate 11 surface
Become the cover plate 40 of coil pattern.Cover plate 40 is formed as protecting coil pattern from external action, and
Can be formed by with the magnetic sheet 10 identical material constituting laminate 11.
However, present inventive concept not limited to this, cover plate 40 can be by by the insulation of such as epoxy resin
Resin is coated in and is formed at least one surface of laminate 11, or can pass through method of molding (molding
Method) or cladding process (coating method) formed.
It is being configured as above according in the near-field communication aerial module of exemplary embodiment, magnetic sheet is printing
After brush coil pattern, radiant body, magnetic sheet stackable for formed three dimensional coils pattern.Therefore, with root
Near-field communication (NFC) Anneta module according to prior art is compared, and the size of NFC antenna module can show
Write ground to reduce.
Further, since can be formed wired by stacking according to the NFC antenna module of exemplary embodiment
The magnetic sheet of circular pattern and make, therefore can hold-in winding drafting department divide between constant interval, thus posting
The deviation of raw electric capacity (stray capacitance) can significantly reduce, and due to self-resonant frequency
(SRF) characteristic deviation that change causes can significantly reduce.
In addition, the coil pattern as radiant body can be exposed to the side table of the laminate being stacked with magnetic sheet
Face.Therefore, the magnetic field being produced by coil pattern can leak out, thus NFC can be significantly increased
The identification distance of Anneta module.
Next, the side by the manufacture Anneta module of the exemplary embodiment describing according to present inventive concept
Method.
The method of the manufacture NFC antenna module of the exemplary embodiment according to present inventive concept includes：
Prepare multiple magnetic raw cooks；Form coil pattern along the edge of each in magnetic raw cook；Stacking is many
Individual magnetic raw cook；Sinter the magnetic raw cook of multiple stackings.
Fig. 5 is the sectional view illustrating to manufacture the method for Anneta module shown in Fig. 1.With reference to Fig. 5,
Magnetic raw cook 10 can be prepared.
Magnetic raw cook 10 can using casting technique (tape casting proces) etc. pass through will have for
Realize the magnetic-particle of component (compositions) and adhesive and the molding solvent of desired characteristic
(molding solvent) mixes and the form manufacture according to piece.However, manufacturing magnetic raw cook 10
Method not limited to this, therefore, use can be carried out any method of sintering of magnetic-particle and not be subject to
Limit.
Can be by will there is suitable component and comprise in metal dust, sheet metal and ferrite powder
At least one magnetic-particle is mixed with adhesive resin, and volatile solvent is added to wherein to control
Viscosity processed is preparing the cream for forming magnetic raw cook 10.
Volatile solvent is not limited to this, but may include toluene, ethanol (alcohol) and methyl second
At least one in base ketone (MEK).
Adhesive can be from by waterglass, polyimides, polyamide, silicon, phenolic resin (phenol
Resin at least one selecting) and in the group that forms of acrylic (acrylic), but not limited to this.
If cream needs with insulating properties, ceramic powders can be added in described cream, this ceramic powder
End may include kaolin (kaolin), talcum powder (talc) etc., can use and have appointing of electrical insulating property
What material and unrestricted.
Then, concave part 30 is formed as allowing coil pattern 20 to be arranged in magnetic raw cook 10
On each.
Then, coil pattern 20 may be provided in concave part 30.The setting of coil pattern 20 can be led to
Cross silk-screen printing technique (silkscreen process), ink-jetting process, plasma treatment etc. to execute.
For example, the coil pattern 20 with electric conductivity will such as can be led by using one of described technique
The conductive material of electric cream is arranged in concave part 30 and makes the conductive material being arranged in concave part 30 hard
Change and formed.
Additionally, directly metal can be arranged by using plating technic in concave part 30, and need not make
Use conductive paste.Except process described above, can be unrestricted, as long as coil using any method
Pattern 20 can be formed in concave part 30 by the method.
Afterwards, conductive via 50 can be formed.Conductive via 50 can run through magnetic sheet 10, and can electrically connect
To the coil pattern 20 being arranged in another magnetic sheet 10.
Then, stackable multiple magnetic sheet 10 being formed with coil pattern 20 and conductive via 50, with shape
Become laminate 11.In this case, may also include and apply pressure to improve lamination to laminate 11
The step of the density of part.
Hereafter, laminate 11 can finally be sintered, to complete the laminate 11 shown in Fig. 1.This
Outward, if necessary, also can be formed on the upper surface of laminate 11, lower surface or this two surfaces
Do not form the cover plate 40 of coil pattern thereon.
In the method manufacturing Anneta module configured as described above, concave part 30 may be formed in magnetic sheet
Each in, then, coil pattern 20 may be formed in concave part 30.
In this case, the upper surface of the upper surface of magnetic sheet 10 and coil 20 can coplanar be arranged.Cause
This, in stacking magnetic sheet 10 and to during its applying pressure, due to applying to coil pattern 20
Pressure will not raise and pressure can be integrally uniformly applied, therefore can be in being formed at each magnetic sheet 10
The each several part of coil pattern 20 between formed identical interval.
Fig. 6 is the Anneta module schematically showing the another exemplary embodiment according to present inventive concept
Sectional view.Fig. 7 is the sectional view illustrating to manufacture the method for Anneta module shown in Fig. 6.
With reference to Fig. 6, in the Anneta module 2 according to exemplary enforcement example, can not shape in magnetic sheet 10
Become concave part.Coil pattern 20 may be formed on a surface of magnetic sheet 10 (flat magnetic sheet) and can
It is embedded in another magnetic sheet 10 being arranged in coil pattern 20.
With reference to Fig. 7, by the method for the manufacture Anneta module describing according to exemplary embodiment.First,
Coil pattern 20 may be formed on a surface of the flat magnetic sheet 10 without concave part.
Then, after being formed and running through the conductive via 50 of magnetic sheet 10, multiple it is formed with conductive pattern 20
Stackable with the magnetic sheet of conductive via 50 to form laminate 11.
In this case, the magnetic sheet 10 of stacking can be by applying pressure and phase closely to each other to it
Neighbour, and during this process, coil pattern 20 can be embedded into be arranged on another in coil pattern 20
In magnetic sheet 10.
Hereafter, laminate 11 can finally be sintered, to complete the laminate 11 shown in Fig. 6.This
Outward, if necessary, also can on the upper surface of laminate 11, lower surface or this two surfaces shape
Become not forming the cover plate 40 of coil pattern.
In the method for the manufacture Anneta module according to exemplary embodiment, due to applying pressure to layer
During casting die, pressure is applied in coil pattern, therefore the interval between coil pattern part that
Can be slightly different between this.However, the formation of concave part can be omitted, and antenna mould can be conducive to
The manufacture of block.
As described above, the near-field communication aerial module in the exemplary embodiment according to present inventive concept
In, the coil pattern with three-dimensional structure can be formed.Therefore, with the coil pattern according to prior art
The NFC antenna module being formed on flexible substrates is compared, and the size of this near-field communication aerial module can
Significantly reduce.
Further, since the magnetic field that coil pattern produces can leak out, therefore NFC antenna module
Identification distance can significantly increase.
Although exemplary embodiment has been shown and described above, for people in the art
Member will be apparent that, under the ambit of the invention being limited without departing from claim, can make and repairing
Change and change.
Claims (12)
1. a kind of near-field communication aerial module, including：
Laminate, is formed by stacking multiple magnetic sheets；
Coil pattern, is formed on each magnetic sheet in described magnetic sheet；
Wherein, described coil pattern is formed at the edge of described magnetic sheet.
2. near-field communication aerial module as claimed in claim 1, wherein, the side surface of coil pattern from
Laminate outwards exposes.
3. near-field communication aerial module as claimed in claim 1, also includes running through magnetic sheet connect setting
At least one conductive via of coil pattern on magnetic sheet adjacent one another are.
4. near-field communication aerial module as claimed in claim 1, wherein, described magnetic sheet includes metal powder
At least one in end, sheet metal and ferrite powder.
5. near-field communication aerial module as claimed in claim 4, wherein, metal dust or metal
Piece is included from by iron, iron-silicon alloy, iron-silicon-aluminum alloy, iron-silicon-evanohm and Ni-Fe-molybdenum alloy
At least one selecting in the group of composition.
6. near-field communication aerial module as claimed in claim 4, wherein, ferrite powder includes
Nickel-zinc-copper or manganese-zinc.
7. near-field communication aerial module as claimed in claim 1, wherein, magnetic sheet has and is formed at
Concave part on one surface of described magnetic sheet, described coil pattern is arranged in concave part.
8. near-field communication aerial module as claimed in claim 1, also includes：It is arranged on laminate
At least one surface on protect coil pattern cover plate.
9. a kind of method manufacturing near-field communication aerial module, including：
Prepare multiple magnetic raw cooks；
Edge along each the magnetic raw cook in described magnetic raw cook forms coil pattern；
Stack multiple magnetic raw cooks；And
Sinter the magnetic raw cook of multiple stackings.
10. method as claimed in claim 9, wherein, magnetic raw cook includes metal dust, metal
At least one in piece and ferrite powder.
11. methods as claimed in claim 9, wherein, the formation of coil pattern includes：
Form concave part in magnetic raw cook；And
Form coil pattern in concave part.
12. methods as claimed in claim 9, wherein, the formation of coil pattern also includes：
Form the conductive via running through magnetic raw cook.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150106714A KR20170013689A (en) | 2015-07-28 | 2015-07-28 | Near field communication antenna module and manufacturing method of the same |
| KR10-2015-0106714 | 2015-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106410415A true CN106410415A (en) | 2017-02-15 |
Family
ID=58006253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610309498.9A Pending CN106410415A (en) | 2015-07-28 | 2016-05-11 | Near field communication antenna module and manufacturing method of the same |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20170013689A (en) |
| CN (1) | CN106410415A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101232125A (en) * | 2007-01-10 | 2008-07-30 | 户田工业株式会社 | Magnetic antenna and board mounted with the same |
| CN203071236U (en) * | 2013-02-25 | 2013-07-17 | 3M中国有限公司 | Antenna device |
| WO2015008704A1 (en) * | 2013-07-16 | 2015-01-22 | 株式会社村田製作所 | Antenna device and communication device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101326111B1 (en) | 2013-05-20 | 2013-11-06 | 주식회사 아이엠텍 | Near field communication antenna and printed circuit board for the near field communication antenna and method of manufacturing the same |
-
2015
- 2015-07-28 KR KR1020150106714A patent/KR20170013689A/en unknown
-
2016
- 2016-05-11 CN CN201610309498.9A patent/CN106410415A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101232125A (en) * | 2007-01-10 | 2008-07-30 | 户田工业株式会社 | Magnetic antenna and board mounted with the same |
| CN203071236U (en) * | 2013-02-25 | 2013-07-17 | 3M中国有限公司 | Antenna device |
| WO2015008704A1 (en) * | 2013-07-16 | 2015-01-22 | 株式会社村田製作所 | Antenna device and communication device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20170013689A (en) | 2017-02-07 |
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Application publication date: 20170215 |