CN108172376A - Inductor - Google Patents
Inductor Download PDFInfo
- Publication number
- CN108172376A CN108172376A CN201710461365.8A CN201710461365A CN108172376A CN 108172376 A CN108172376 A CN 108172376A CN 201710461365 A CN201710461365 A CN 201710461365A CN 108172376 A CN108172376 A CN 108172376A
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- CN
- China
- Prior art keywords
- protruding portion
- coil
- supporting member
- inductor according
- coil pattern
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
Abstract
This disclosure relates to a kind of inductor, which includes main body (body) and is configured at the outer surface of its main body and is electrically connected to the external electrode of the coil lead division of the coil pattern in main body.The main body includes inside it：Supporting member；Coil pattern, by the support member support, including coil lead division；And encapsulating material, wherein, the supporting member includes at least one protruding portion for supporting the coil lead division, and the through-Penetration portion through the supporting member is configured in the inside of the protruding portion.
Description
Technical field
The present invention relates to a kind of inductor, more particularly to a kind of film-type power inductor.
Background technology
Recently, power inductor is with smart mobile phone, the minimizing of Wearable (wearable device), slim
Change trend, piece (chip) size are also miniaturized, and in order to realize high-efficient characteristic, use the composite wood that metallic magnet is utilized
Material.
Since the chip size for the power inductor being miniaturized is limited, to realize that high power capacity, low Rdc characteristics are made in many ways
The effort in face, for example, the letter C shape external electrode extended to above piece is changed to not by patent document 1 as described below in the past
The alphabetical L-shaped external electrode above piece is extended to, so as to increase magnet content compared with identical size, although being made that these
Effort, but due to it is difficult to ensure that adhesiveness between foreign material, actually fails to solve the hair of layering (delamination)
The problem of giving birth to or being caused by increased limitation of magnet content etc..
【Existing technical literature】
【Patent document】
(patent document 1) Japanese patent gazette the 5084459th
Invention content
One in the disclosure various subjects to be solved is height tolerance by reducing inductor interior lines circular pattern
To improve the reliability of inductor.
Included according to the inductor of an embodiment of the disclosure：Main body, including：Supporting member；Coil pattern, by the branch
Component support is supportted, including coil body and at least one coil lead division；And encapsulating material, encapsulate the supporting member and institute
State coil pattern；And external electrode, the outer surface of the main body is configured at, wherein, the supporting member is included described in support
At least one protruding portion of coil lead division, is configured in the inside of the protruding portion through the upper surface of supporting member and following table
The through-Penetration portion in face.
One in the various effects of the disclosure is that can provide a kind of following inductor：It can in inductor by expanding
It is thinned coil pattern, while also make the high uniformity of coil pattern to form the area of the coil lead division of coil pattern
Ground is grown.
Description of the drawings
Fig. 1 is the schematical stereogram of the inductor of the disclosure.
Fig. 2 is the schematical sectional view along I-I' wire cuttings by Fig. 1.
Fig. 3 is the enlarged drawing for the a-quadrant that amplification shows Fig. 2.
Fig. 4 is the schematical vertical view of Fig. 1.
Fig. 5 is the schematical vertical view for the variation for showing Fig. 4.
Fig. 6 is the schematical vertical view for another variation for showing Fig. 5.
Fig. 7 a to Fig. 7 f are the schematic diagrames of the manufacturing process of the inductor of the brief display manufacture disclosure.
Symbol description
100：Inductor 1：Main body
11、11”：Coil pattern 11a, 11a "：Coil lead division
12：Supporting member 12a, 12b：Protruding portion
12p、12q：Through-Penetration portion
21、22(21”、22”)：First external electrode and the second external electrode
Specific embodiment
Hereinafter, illustrate the implementation form of the disclosure with reference to specific implementation form and attached drawing.However, the implementation of the disclosure
Form can be deformed into a variety of different forms, and the scope of the present disclosure is not limited to implementation form as described below.In addition, it carries
It is to be described more fully the disclosure to those of ordinary skill in the art for the purpose of the implementation form of the disclosure.Therefore,
In order to become more clear explanation, shape and size of the element in attached drawing etc. may be exaggerated, use in the accompanying drawings
The element that the same symbol represents is identical element.
In addition, in the accompanying drawings, in order to clearly state the disclosure, the part unrelated with explanation is omitted, for clear and definite earth's surface
Show multiple layers and region, its thickness is enlarged and displayed, in identical thought range, the inscape identical about function uses
Identical reference numeral illustrates.
Throughout the specification, when being recorded as a certain inscape of certain a part of " comprising ", as long as no especially opposite
It records, then mean another inscape is not precluded but another inscape can also be included.
Hereinafter, the inductor of an example according to the disclosure is illustrated, but the disclosure is not limited thereto.
Inductor
Fig. 1 is according to the schematical stereogram of the inductor 100 of an example of the disclosure, and Fig. 2 is the I-I' lines along Fig. 1
The sectional view of cutting.
Referring to FIG. 1 and FIG. 2, inductor 100 includes main body 1 and is configured at least part area of the outer surface of the main body
First and second external electrode 21,22 on domain.
The main body 1 forms the monnolithic case of coil component, is included in upper surface facing with each other on thickness T directions under
Surface, first side facing with each other on length L directions and second side, first end facing with each other on width W directions
Face and second end face, therefore can essentially have hexahedral shape, however, it is not limited to this.
The main body 1 includes the magnetisable material with magnetic characteristic, for example, magnetisable material can be ferrite in the main body
Or metal magnetic particles are filled into the substance that resin forms, the metal magnetic particles can include from by iron (Fe), silicon (Si),
Chromium (Cr), aluminium (Al) and nickel (Ni) composition group in select more than one.
First and second external electrode 21,22 being configured at least part surface on the outer surface of the main body exists
It is shown as in Fig. 2 with letter C font, but the concrete shape of first and second external electrode is unrestricted.For example, first and
Two external electrodes can have the alphabetical L-shaped of the lower surface for extending only to main body and side, can also be formed as only being configured
It is completely unrestricted in lower surface electrode of the lower surface of main body etc..
First and second external electrode needs are electrically connected with the coil pattern in main body, and it is therefore preferred to include conduction
Property good material, for example, it may be nickel (Ni), copper (Cu), silver-colored (Ag) or their alloy, can also be configured to multilayer,
According to circumstances multiple metal. plating layers etc. can be reconfigured after most inner side forms Cu line coating, material and forming method are simultaneously
It is unrestricted.
The inside of the main body 1 is observed, the main body includes：Coil pattern 11 is included the particle with magnetic characteristic
Encapsulating material encapsulates；And supporting member 12, support the coil pattern.Here, the encapsulating material includes metal powder with gathering
Close the complex of object.The coil pattern 11 includes：It is configured at upper coil pattern 111 and the configuration of the upper surface of supporting member
Lower coil pattern 112 in the lower surface of the supporting member, the upper coil pattern and the lower coil pattern can
To pass through via electrical connection (not shown).
The coil pattern 11 on the whole can be with spiral shape, and however, it is not limited to this.In addition, the coil pattern
11 include metal material with good conductivity, for example, can include copper (Cu).
The coil pattern 11 includes being connected to the first coil lead division 11a of the first external electrode and be connected to outside second
Second coil lead division 11b of portion's electrode.In the coil pattern, except the first coil lead division and second coil
The region of coil pattern except lead division is coil body.
Hereinafter, after being illustrated to the supporting member 12 for supporting the coil pattern, illustrate described first and
The shape of second coil lead division 11a, 11b.
The supporting member 12 is for coil to be made to be formed as thinner and it is made to be more prone to the component to be formed, and can be made
It is used as such as epoxy resin thermosetting resin of insulating resin, such as polyimides thermoplastic resin or impregnates wherein
Just like the resin of the reinforcement materials such as glass fibre or inorganic filler, for example, preimpregnation material (prepreg), ABF (Ajinomoto
Build-up Film), FR-4, Bismaleimide Triazine (BT：Bismaleimide Triazine) resin, light is imageable
Dielectric (PID：Photo Imageable Dielectric) resin etc..If contain glass fibers in the supporting member
Dimension, rigidity can be more good.
It can include through hole in the central portion of the supporting member 12, the through hole can be with by same material
The central part of magnetic core is formed, the magnetic conductivity of coil component can be improved.
The supporting member 12 includes at least one protruding portion of support coil lead division, and the protruding portion includes support the
Second protruding portion 12b of the second coil lead division of the first protruding portion 12a of one coil lead division and support, described first and the
The respective inside of two protruding portions is configured with through-Penetration portion 12p, 12q through the upper surface of the supporting member and lower surface.
Only, through-Penetration portion 12p, 12q of the supporting member is can't see by Fig. 1 and Fig. 2, therefore with reference to Fig. 2
A-quadrant Fig. 3 for being amplified and Fig. 1 schematical vertical view i.e. Fig. 4, be explained in more detail the through-Penetration portion 12p,
12q and first and second coil lead division 11a, the 11b being supported by it.
For convenience of description, only to the first protruding portion 12a in first and second described protruding portion and described in being supported by it
First coil lead division 11a is illustrated, and such explanation may be directly applied to the second protruding portion 12b and be supported by it described
Second coil lead division 11b, therefore omit repeat description each other.
With reference to Fig. 3 and Fig. 4, the first protruding portion 12a includes being through to the through-Penetration portion of lower surface from the upper surface of supporting member
12p is configured with first coil lead division 11a on the surface of the through-Penetration portion.The first coil lead division is not only along institute
State the upper surface configuration of supporting member, but also along the surface configuration of through-Penetration portion in supporting member, therefore with including institute
State the corresponding shape of shape of the protruding portion of through-Penetration portion.The through-Penetration portion 12p has by the first coil lead division
The structure of encirclement.
First protruding portion 12a of the supporting member includes through-Penetration portion 12p, on the surface of its through-Penetration portion, is specifically passing through
When wearing configuration first coil lead division on the lateral surface in portion, compared with not including the situation of through-Penetration portion, first protruding portion can
To increase the area for being capable of plating coil pattern.Specifically, in the lateral surface of through-Penetration portion, that is, on the side of the first protruding portion
It is formed after seed layer (seed layer), makes coil pattern along the seed layer plating.As a result, do not include in previous
In the inductor of through-Penetration portion, the coil lead division undue growth of coil pattern, so as to which its metal layer thickness unnecessarily increases,
There are problems that being unable to maintain that uniform coat of metal growth, but in the case of the inductor 100 according to the disclosure, by making line
Circle lead division can the area of metal lining increase and disperse applied electric current and metal plating liquid, so as to induce equilibrium
The coat of metal growth.It is related to this, the coil body in the coil pattern in addition to first and second coil lead division,
The average height of outermost coil pattern and the coil pattern of coil lead division supported by the protruding portion in its coil body
The ratio between average height, preferably more than 0.95 and less than 1.0, it means that there is no line between coil body and coil lead division
The height tolerance of circular pattern or its deviation are no more than 5%.Herein, highly mean thickness direction of the coil pattern along main body
The thickness of growth.The average height of outermost coil pattern is drawn with the coil supported by the protruding portion in the coil body
When going out the ratio between the average height of coil pattern in portion less than 0.95, illustrate line of the coil pattern than coil body of coil lead division
Circular pattern is exceedingly grown.If in this way, the exceedingly misgrowth of the coil pattern of coil lead division, the coil lead division
The coil pattern on the thickness of magnetic sheet that is configured it is relatively thinning, therefore exist in cutting technique (dicing
Process the problem of peeling (chipping) phenomenon that magnetisable material is fallen occurs due to its impact in).On the contrary, described
The average height of outermost coil pattern and the coil pattern of coil lead division that is supported by the protruding portion in coil body
When the ratio between average height is more than 1.0, illustrate the coil pattern of coil body than coil lead division undue growth, this is common
The situation of hardly possible generation, unrealistic in metal deposition pattern forming technology.
On the other hand, it is configured in the inner space of the through-Penetration portion 12p after the first coil lead division 11a remaining
Headroom in be filled with encapsulating material.On the basis of identical chip size, the encapsulating material with magnetic characteristic can be increased
(encapsulant) content, therefore the magnetic conductivity of inductor can be increased.
As shown in figure 4, the cross sectional shape of the through-Penetration portion 12p can have rectangular shape, however, it is not limited to this, example
Such as, it is possible to have semicircle or diamond shape shape.
In addition, process conditions and work can be considered by those skilled in the art by forming the mode of the through-Penetration portion 12p
It selects to skill fitness of environment, the mode identical with when the central portion of supporting member forms through hole can be used, can also be made
With different modes.For example, the through-Penetration portion can apply CO2Laser cutting (Laser trimming) technique and formed or
Person can be formed using the technique of the drillings such as drill, and however, it is not limited to this.
Fig. 5 is the schematical sectional view for the variation for showing Fig. 4, and Fig. 5 shows the protrusion of the supporting member compared with Fig. 4
The situation of the end of the protruding portion is expanded and extended to through-Penetration portion 12p', 12q' in portion.For inductor shown in fig. 5 and figure
The content repeated each other between inductor shown in 4 will be omitted.In addition, it for convenience of description, is added in the lower end of Fig. 5 aobvious
Show following enlarged drawing：Above and below protruding portion 12a' of the overturning first coil lead division with being configured at supporting member below,
The protruding portion of supporting member is made to be configured at the upside of first coil lead division.
With reference to Fig. 5, the table of the protruding portion 12a' of the supporting member 12' of the first coil lead division 11a' of coil pattern is supported
Face includes the contact surface 121a' being physically contacted with the first external electrode 21'.Support the branch of the second coil lead division of coil pattern
The surface for supportting the protruding portion 12b' of component includes another contact surface being physically contacted with the second external electrode 22'.
The contact surface 121a' includes the first contact surface being configured spaced apart to each other on the basis of the width direction of main body 1'
1211' and the second contact surface 1212'.Equally, the protruding portion 12a' includes being connected to the first of first contact surface and protrudes
Portion 121' and the second protruding portion 122' for being connected to second contact surface.The structure of the protruding portion is observed, described second is prominent
Go out portion to connect with first protruding portion and form a protruding portion.First protruding portion and the second protruding portion can be with processes
It is symmetrical on the basis of the core center C of coil and the dummy line V being extend side by side with the length direction of main body.
The upper surface of first protruding portion and its side, second protruding portion upper surface and its side on be configured
There is first coil lead division 11a', the first coil lead division 11a' is by the upper surface of first protruding portion and the second protruding portion
It is integrally surrounded with side.The first coil lead division 11a' can include the seed layer being directly configured on supporting member
The 111a' and coat of metal 112a' being configured on the seed layer.It dashes forward in such a case, it is possible to which described first will be configured at
It is facing to go out the coat of metal that the coat of metal on the side in portion is configured to and is configured on the side of second protruding portion,
First contact surface of concrete structure and the protruding portion is separated from each other identical, structure with the second contact surface in the width direction of main body
As the coat of metal on the coat of metal and the side of the second protruding portion on the side of the first protruding portion in the width side of main body
It is separated from each other upwards.Obviously, on the side of the coat of metal on the side of first protruding portion and second protruding portion
The coat of metal is using dummy line V as boundary is connected to each other and can form a continuous coat of metal.
When first coil lead division pattern is configured on the surface of the protruding portion of the supporting member, the First Line
The upper surface or even extension that circle lead division pattern is not only configured in the surface of the protruding portion are configured to the table of the protruding portion
Side in face, therefore can be ensured that first coil lead division pattern is capable of the leeway in the space of coating growth.
This, which is not only acted as, prevents first coil lead division pattern than the effect that the coil pattern of coil body is exceedingly grown,
The contact area with the first coil lead division pattern of the first external electrode contact can also be increased, therefore also function to and pass through
Reduce improves the effect of reliability with the engagement resistance of external electrode.
In addition, in general, the binding force of supporting member and external electrode declines by the difference of its material included,
Although external electrode occurs from danger the phenomenon that main body layering (delamination) as a result, having, by making supporting member
It is minimized with the area of the contact surface 121a' of external electrode physical contact with one another, also plays the danger for being layered external electrode
The effect nearly reduced.
Secondly, Fig. 6 is the schematical sectional view for other variations for showing Fig. 5, and Fig. 6 is compared with Fig. 5, in supporting member
Protruding portion in through-Penetration portion 12p ", 12q " expansion and on this point of extending to the situation of the end of the protruding portion have it is common
Point, but it is different from each other in the cross sectional shape of through-Penetration portion.It is weighed each other between inductor shown in Fig. 6 and inductor shown in fig. 5
Multiple content is omitted.
With reference to Fig. 6, through-Penetration portion 12p " in protruding portion 12a ", the 12b " of supporting member 12 ", 12q " section can essentially
With rectangular shape.Through-Penetration portion 12p ", the 12q " of Fig. 6 can have the area of the through-Penetration portion bigger than Fig. 5, this explanation is filled into
The content of magnetisable material in through-Penetration portion can further increase.
On the other hand, although without specifically depicted, the first protruding portion and the second protruding portion of the protruding portion of Fig. 6 are formed
Can have more adjacent to external electrical extremely width more the structure reduced.In this way, can by the length direction of main body width get over
Structure more to reduce is described as taper (tapered) structure.The first protruding portion and the second protruding portion are each in the protruding portion
A when having pyramidal structure, the area of through-Penetration portion increases in protruding portion, more ensures to fill the headroom of magnetisable material, and prop up
Component is opposite with the area for the contact surface that external electrode is physically contacted becomes smaller, therefore the contact that can improve external electrode is reliable for support
Property.
Hereinafter, with reference to Fig. 7, an example of the manufacture according to the manufacturing process of the inductor of an example of the disclosure is simplyd illustrate.
First, Fig. 7 (a) forms through-hole in supporting member 712, meanwhile, in the area with following coil lead divisions will be configured
The position of the corresponding supporting member in domain forms through-Penetration portion 712p, 712q.In this case, the method for forming the through-Penetration portion is complete
Complete unrestricted, those skilled in the art can be considered process conditions etc. and properly select, for example, CO can be applied2Swash
The methods of light, drilling, sandblasting (sandblast), punching (punching) processing.
Then, Fig. 7 (b) be by Fig. 7 (a) and the one side of the supporting member 712 including through-hole and through-Penetration portion and/or another
The step of forming coil pattern 711 on one side is utilizing electroless chemical deposit (Electroless specifically, can use
Plating it) is formed after seed layer, the method for forming the coat of metal on seed layer using plating.At this time, it is preferable that described
Seed layer extends to the side of through-Penetration portion from the one side and/or another side of the supporting member prepared in Fig. 7 (a), is passed through extending to
When wearing the side in portion, the effect for the spatial expansion to form coil lead division pattern can be properly played.
Then, empty (cavity) processing technology of Fig. 7 (c) displays, after coil pattern 711 is formed, for process support
The medium pore of component performs drilling, laser, sandblasting, punching processing etc..At this point, carrying out the central hole machined on one side, chase after on one side
Remove the contour part for the supporting member for not forming coil pattern with adding, it is preferable that tear open along the shape of the contour part of coil pattern
Except the contour part of the supporting member.
Fig. 7 (d) shows the technique to the upside of the supporting member including coil pattern and downside filling magnetisable material,
This, the magnetic sheet for including magnetisable material is laminated (laminate) or by isostatic pressing method (Isostatic press) into
Row squeezes and can form main body.In this case, magnetisable material reason obviously can be filled into the preparation process in Fig. 7 (a)
The inner space of the through-Penetration portion of middle formation and Fig. 7 (c) empty procedure of processing formed through hole and contour part, hereby it is possible to
It is enough to expect the raising of magnetic conductivity.It on the other hand, can be in the line although it is not shown, still before magnetisable material is filled
Insulating layer is formed on the surface of circular pattern and covers coil pattern.It is intended to prevent magnetisable material from contacting and occurring with coil pattern
Short-circuit (short), specific method can properly select silk screen print method, the exposure by photoetching (PhotoResist, PR)
Light is applied the well-known methods such as technique, but is also not limited thereto by the technique of development, spray (spray).
Then, Fig. 7 (e) shows cutting technique, and the thicker chain-dotted line of use shows the part to be cut.In general, cutter
Skill is to make the coil extension of each coil pattern adjacent to each other from and application blade (blade) on coil lead division
Technique, in the disclosure coil lead division be formed in the neighboring area of through-Penetration portion in the protruding portion of supporting member, therefore cutter
Piece actually crosses the through-Penetration portion of supporting member.In this case, due to the through-Penetration portion, the support structure of cutting blade contact
The contact area of part reduces, and may finally reduce the abrasion of cutting blade.
Fig. 7 (f) is shown in is formed as the main body that the piece of individuation (chip) is formed by the cutting technique by Fig. 7 (e)
Outer surface on the technique of external electrode is configured, the external electrode is configured to connect to the coil lead division of coil pattern,
Specific method is unrestricted, for example, can not only be formed by implementing the art of printing, but also can be by implementing to impregnate
(dipping) method is formed.
Except described above, omit said with what the feature of the inductor of the above-mentioned an example according to the disclosure repeated herein
It is bright.
According to above-described inductor, by the face for expanding the coil lead division that coil pattern can be formed in inductor
It accumulates to be thinned coil pattern, while the highly homogeneously growth of coil pattern can be made.Furthermore it is possible to make to be in direct contact outer
The contact area of the supporting member of portion's electrode minimizes, this can be prevented due to the associativity between external electrode and supporting member
The bad and disengaging of external electrode that may occur.
Meanwhile as inductor becomes to minimize, what coil lead division and the external electrode of coil pattern were connected to each other connects
It closes area to be also gradually reduced, nevertheless, in order to realize reliable electrical connection, there are minimum limits between coil and external electrode
Jointing edge interphase product.Therefore, the miniaturization of inductor can not be ignored and unlimitedly reduces external electrode and drawn with coil
Bonding area between portion, this is truth.In the case of according to the inductor of an example of the disclosure, with the inductor of identical size
On the basis of, the bonding area that coil lead division is connected to each other with external electrode can be increased, therefore can efficiently solve related
The technical issues of jointing edge interphase product.
The disclosure is not limited to implementation form and attached drawing described above, it should be defined by the appended claims.Cause
This, in the range of the technological thought for not departing from the described disclosure of claims, the art has usual knowledge
Personnel can carry out the displacement, deformation and change of various modes, this should also belong to the scope of the present invention.
On the other hand, " an example " used in the disclosure is not offered as mutually the same embodiment, is to emphasize
Respectively inherent feature different from each other and provide.But an example illustrated above is not excluded for being combined with the feature of other an examples
And the situation realized.For example, even if the item illustrated in specific an example does not illustrate in other an examples, as long as at other
Explanation not opposite with the item or contradiction in an example, both can be understood as and the relevant explanation of other an examples.
On the other hand, the term used in the disclosure uses just to illustrate an example, and there is no limit the disclosure
Intention.At this point, as long as the statement of odd number then includes the statement of plural number within a context without representing clearly different meanings.
Claims (16)
1. a kind of inductor, including：
Main body, including：Supporting member；Coil pattern, by the support member support, including coil body and at least one coil
Lead division；And encapsulating material, encapsulate the supporting member and the coil pattern；And
External electrode is electrically connected to the coil lead division,
The supporting member includes at least one protruding portion for supporting the coil lead division, is formed through in the protruding portion
The through-Penetration portion of the upper and lower surface of the supporting member.
2. inductor according to claim 1, wherein,
The coil lead division is configured to extend to the surface of the through-Penetration portion from the upper surface of the protruding portion.
3. inductor according to claim 1, wherein,
The coil lead division has the corresponding shape of shape with the protruding portion including the through-Penetration portion.
4. inductor according to claim 1, wherein,
The seed layer of the coil pattern is configured on the side of the protruding portion.
5. inductor according to claim 1, wherein,
It is filled by the encapsulating material inside of the through-Penetration portion.
6. inductor according to claim 1, wherein,
The cross sectional shape of the through-Penetration portion is semicircle.
7. inductor according to claim 1, wherein,
The cross sectional shape of the through-Penetration portion is polygon.
8. inductor according to claim 1, wherein,
The surface of the protruding portion of the supporting member includes the contact surface be physically contacted with the external electrode, the contact surface it
Between be folded with the through-Penetration portion and be configured with being separated from each other.
9. inductor according to claim 8, wherein,
The contact surface includes the first contact surface and the second contact surface that are separated from each other, and the protruding portion is including being connected to described the
First protruding portion of one contact surface and be connected to first protruding portion and be connected to second contact surface second protrude
Portion.
10. inductor according to claim 9, wherein,
The coil pattern includes the seed layer being configured on the supporting member and be configured on the seed layer at least one
A coat of metal, the upper coat of metal being configured on the side of first protruding portion are configured to and are configured at described second
The upper coat of metal on the side of protruding portion is facing.
11. inductor according to claim 9, wherein,
The coil pattern includes the seed layer being configured on the supporting member and be configured on the seed layer at least one
A coat of metal, the upper coat of metal being configured on the side of first protruding portion is with being configured at second protruding portion
Side on the upper coat of metal be in contact with each other.
12. inductor according to claim 1, wherein,
The average height of outermost coil pattern and the line of coil lead division supported by the protruding portion in the coil body
The ratio between average height of circular pattern is more than 0.95 and less than 1.0.
13. inductor according to claim 1, wherein,
The protruding portion has more adjacent to the external electrode then width more the pyramidal structure to narrow.
14. inductor according to claim 1, wherein,
The encapsulating material includes the complex of metal powder and polymer.
15. inductor according to claim 1, wherein,
The through-Penetration portion has the structure surrounded by the coil pattern.
16. inductor according to claim 1, wherein,
The coil pattern includes being configured at the upper coil pattern of the upper surface of the supporting member and is configured at the support
The lower coil pattern of the lower surface of component.
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| KR1020160167093A KR102632353B1 (en) | 2016-12-08 | 2016-12-08 | Inductor |
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Cited By (3)
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|---|---|---|---|---|
| CN112117078A (en) * | 2019-06-21 | 2020-12-22 | 三星电机株式会社 | Coil electronic component |
| CN113161123A (en) * | 2020-01-07 | 2021-07-23 | 三星电机株式会社 | Coil component |
| US20220013271A1 (en) * | 2020-07-08 | 2022-01-13 | Samsung Electro-Mechanics Co., Ltd. | Coil component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102208281B1 (en) | 2019-05-15 | 2021-01-27 | 삼성전기주식회사 | Coil component |
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| CN104766692A (en) * | 2014-01-02 | 2015-07-08 | 三星电机株式会社 | Chip electronic component |
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| KR101434351B1 (en) * | 2010-10-21 | 2014-08-26 | 티디케이가부시기가이샤 | Coil component and method for producing same |
| KR101397488B1 (en) * | 2012-07-04 | 2014-05-20 | 티디케이가부시기가이샤 | Coil component and method of manufacturing the same |
| KR101994729B1 (en) * | 2014-01-02 | 2019-07-01 | 삼성전기주식회사 | Chip electronic component and manufacturing method thereof |
| KR101709841B1 (en) * | 2014-12-30 | 2017-02-23 | 삼성전기주식회사 | Chip electronic component and manufacturing method thereof |
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| CN101110293A (en) * | 2006-06-20 | 2008-01-23 | 富士电机电子设备技术株式会社 | Micro power converter and method of manufacturing same |
| CN104766692A (en) * | 2014-01-02 | 2015-07-08 | 三星电机株式会社 | Chip electronic component |
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| CN113161123A (en) * | 2020-01-07 | 2021-07-23 | 三星电机株式会社 | Coil component |
| US20220013271A1 (en) * | 2020-07-08 | 2022-01-13 | Samsung Electro-Mechanics Co., Ltd. | Coil component |
| US11848136B2 (en) * | 2020-07-08 | 2023-12-19 | Samsung Electro-Mechanics Co., Ltd. | Coil component |
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| KR20180065801A (en) | 2018-06-18 |
| KR102632353B1 (en) | 2024-02-02 |
| CN108172376B (en) | 2021-01-12 |
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