CN108206087A - Inductor and its mounted substrate - Google Patents
Inductor and its mounted substrate Download PDFInfo
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- CN108206087A CN108206087A CN201710520029.6A CN201710520029A CN108206087A CN 108206087 A CN108206087 A CN 108206087A CN 201710520029 A CN201710520029 A CN 201710520029A CN 108206087 A CN108206087 A CN 108206087A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
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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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0013—Printed inductances with stacked layers
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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
- H01F27/02—Casings
- H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards
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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
- H01F27/2804—Printed windings
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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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
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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
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/323—Insulation between winding turns, between winding layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F2017/004—Printed inductances with the coil helically wound around an axis without a core
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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
- H01F27/2804—Printed windings
- H01F2027/2809—Printed windings on stacked layers
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Abstract
The present invention discloses a kind of inductor and its mounted substrate.Included according to the inductor of one embodiment：Main body, it is multiple insulation layer stackups and formed；First external electrode and the second external electrode are arranged in the outside of the main body；And coil, it is interconnected to form by the coil pattern for being arranged in the insulating layer by coil connecting portion, both ends are connected to first external electrode and the second external electrode by coil lead division, wherein, coil coil pattern when being projected from predetermined direction is overlapped and forms coil track, for at least part coil pattern in the coil pattern, with adjacent coil pattern with reference to and the coil track that is formed has the number of turn of less than 1 time.
Description
Technical field
The present invention relates to a kind of inductor and its mounted substrates.
Background technology
Recently, for smart mobile phone, because of multiband long term evolution (LTE；Long Term Evolution) should
With using the signal of numerous frequency bands.Therefore, inductor in high frequency in transceiving radio frequency (RF) system of signal mainly as impedance
Match circuit and used.Inductor in high frequency is required miniaturization, high capacity.At the same time, inductor in high frequency has height
The magnetic resonance frequency (SRF) and specific resistance of frequency band, therefore it is required that it can be used in the high frequency of more than 100MHz.Also, it is
Loss under frequency used in reducing, truth is just to be required have higher Q characteristic.
In order to have higher Q characteristic as described above, the characteristic for forming the material of the main body of inductor generates maximum
It influences, however truth is to need a kind of following technical solution：Even if in the case where using identical material, it can also make electricity
The coil shape of sensor optimizes, so as to so that inductor has higher Q characteristic.
[existing technical literature]
[patent document]
(patent document 1) Korean Patent Publication No. 10-0431175
(patent document 2) Korean Patent Publication No. 10-0863009
(patent document 3) Korean Patent Laid the 2000-0040049th
Invention content
It can reduce circuit diagram by preventing adjacent coil pattern overlapping one of the objects of the present invention is to provide a kind of
The inductor of closing effect between case.
As for solving the technical solution of above-mentioned technical problem, the present invention is directed to propose that one kind is novel by an example
The inductor of structure, specifically, including：Main body, multiple insulating layers are laminated；First external electrode and the second external electrical
Pole is arranged in the outside of the main body；And coil, coil connecting portion phase is passed through by the coil pattern for being arranged in the insulating layer
It connecting and is formed, both ends are connected to first external electrode and the second external electrode by coil lead division, wherein, institute
State coil when being projected from first direction coil pattern overlapping and form coil track, in the coil pattern extremely
For few a part of coil pattern, the coil track for combining and being formed with adjacent coil pattern is with the number of turn of less than 1 time.
As for solving the technical solution of above-mentioned technical problem, the present invention is directed to propose a kind of attachment by another example
There is the substrate of the inductor of new structure, specifically, including：Substrate is disposed with first electrode pad and second electrode pad；
And inductor, the substrate is arranged in, wherein, the inductor includes：Main body, multiple insulating layers are laminated；Outside first
Portion's electrode and the second external electrode are arranged in the outside of the main body；And coil, by the circuit diagram for being arranged in the insulating layer
Case is interconnected to form by coil connecting portion, and both ends are connected to first external electrode and by coil lead division
Two external electrodes, wherein, coil coil pattern when being projected from first direction is overlapped and forms coil track, for
For at least part coil pattern in the coil pattern, with adjacent coil pattern with reference to and formed coil track have
There is the number of turn of less than 1 time.
For inductor according to an embodiment of the invention, prevent when from stacking direction for forming
At least part coil pattern in the coil pattern of spiral coil track is overlapped in adjacent coil pattern, accordingly can be with
Reduce the closing effect between coil pattern, the Q characteristic of inductor can be improved accordingly.
Description of the drawings
Fig. 1 schematically shows the perspective elevation of the inductor of first embodiment according to the present invention.
Fig. 2 is shown to be contained in the plan view of the coil pattern in inductor shown in Fig. 1 as lamination order.
Fig. 3 schematically shows the perspective elevation of the inductor of comparative example.
Fig. 4 schematically shows the perspective elevation of inductor according to the second embodiment of the present invention.
Fig. 5 is shown to be contained in the plan view of the coil pattern in inductor shown in Fig. 4 as lamination order.
The coil track that Fig. 6 shows coil pattern overlapping when from the front from inductor shown in Fig. 4 and formed.
Fig. 7 schematically shows the perspective elevation of inductor according to the third embodiment of the invention.
Fig. 8 is shown to be contained in the plan view of the coil pattern in inductor shown in Fig. 7 as lamination order.
Fig. 9 schematically shows the perspective elevation of inductor according to the fourth embodiment of the invention.
Figure 10 is shown to be contained in the plan view of the coil pattern in inductor shown in Fig. 9 as lamination order.
Figure 11 schematically shows the perspective elevation of inductor according to the fifth embodiment of the invention.
Figure 12 is shown to be contained in the plan view of the coil pattern in inductor shown in Figure 11 as lamination order.
Figure 13 schematically show measure based on the inductor according to comparative example and it is according to the present invention one implementation
The Q factor (Q factor) of the inductance of the inductor of example.
Figure 14 schematically shows the figure of the mounted substrate of inductor according to another embodiment of the present invention.
Symbol description
100：Inductor 101：Main body
120：Coil 121,122,123,124：Coil pattern
131st, coil lead division 132：Coil connecting portion
140：Dummy pattern 181,182：External electrode
Specific embodiment
Hereinafter, it refers to attached drawing and describes the preferred embodiment of the present invention.
However, the embodiment of the present invention can be deformed into various other forms, the scope of the present invention is not limited to following retouch
The embodiment stated.
Also, it provides the embodiment of the present invention to be intended to the present invention being described more fully to the technology neck belonging to the present invention
Have the personnel of average knowledge in domain.
For explanation definitely, form and dimension of all elements etc. may be illustrated by exaggeration in attached drawing.
Moreover, for the identical inscape of the function in the range of the identical thought shown in the drawings of each embodiment,
It assigns identical reference numeral and illustrates.
Hereinafter, W, L, T in attached drawing can be respectively defined as first direction, second direction, third direction.
Inductor
Fig. 1 is the perspective elevation for the inductor 100 for schematically showing first embodiment according to the present invention, and Fig. 2 is
Show to be contained in the plan view of the coil pattern of inductor 100 shown in Fig. 1 as lamination order.
Refering to Fig. 1 and Fig. 2, the inductor 100 of first embodiment according to the present invention is illustrated.
The main body 101 of the inductor 100 of first embodiment according to the present invention can by along with attachment face it is parallel first
Direction is laminated multiple insulating layers 111 and is formed.
The insulating layer 111 can be magnetosphere or dielectric layer.
In the case where insulating layer 111 is dielectric layer, insulating layer 111 may include BaTiO3(barium titanate) is ceramic powders
Deng.In the case, the BaTiO3Be ceramic powders for example including：BaTiO3In partly solid solution have Ca (calcium), Zr (zirconium) etc.
(Ba1-xCax)TiO3、Ba(Ti1-yCay)O3、(Ba1-xCax)(Ti1-yZry)O3Or Ba (Ti1-yZry)O3Deng, however the present invention is simultaneously
It is non-limiting in this.
It is magnetospheric in insulating layer 111, insulating layer 111 can be used from the main body that can be used as inductor
It is selected in substance suitable for person, such as may include resin, ceramics, ferrite etc..For the present embodiment, magnetosphere can utilize sense
Photosensitiveness insulating materials can realize the fine pattern based on photoetching process accordingly.That is, form magnetism using photosensitive insulating material
Layer, so as to which coil pattern 121,122,123,124 and coil lead division 131 and coil connecting portion 132 imperceptibly be formed, by
This can contribute to the miniaturization of inductor 100 and function improvement.For this purpose, it for example may include photonasty organic matter in magnetosphere
Or photoresist.In addition, SiO can also be included as filler (Filler) ingredient in magnetosphere2/Al2O3/BaSO4/Talc
Etc. inorganic constituents.
The outside of main body 101 can arrange the first external electrode 181 and the second external electrode 182.
For example, the first external electrode 181 and the second external electrode 182 can be disposed at the attachment face of main body 101.So-called patch
Dress face is represented when inductor is mounted on printed circuit board towards the surface of printed circuit board.
External electrode 181,182 played when inductor 100 is mounted on printed circuit board (PCB) by inductor 100 with
The effect that substrate is electrically connected.External electrode 181,182 is mutually separated in main body 101 and is arranged in first direction and parallel
In the edge of the second direction in attachment face.External electrode 181,182 for example may include conductive resin layer, be formed in it is described
Conductor layer in conductive resin layer, however it is not limited to this.Conductive resin layer may include from by copper (Cu), nickel (Ni) and
More than any one selected in the group that silver-colored (Ag) is formed conductive metal and heat-curing resin.Conductor layer may include from by
More than any one selected in the group that nickel (Ni), copper (Cu) and tin (Sn) are formed, for example, nickel (Ni) layer and tin (Sn) layer can be according to
Secondary formation.
Coil pattern 121,122,123,124 can be formed with refering to Fig. 1 and Fig. 2, in insulating layer 111.
In the inductor 100 of first embodiment according to the present invention, coil pattern 121,122,123,124 includes first
Coil pattern 121, the second coil pattern 122, tertiary coil pattern 123, the 4th coil pattern 124.
First to fourth coil pattern 121,122,123,124 can by coil connecting portion 132 and with adjacent circuit diagram
Case is electrically connected to each other.That is, spiral first to fourth coil pattern 121,122,123,124 is connected by coil connecting portion 132
It connects and forms coil 120.The both ends of coil 120 are connected to the first external electrode 181 and by coil lead division 131
Two external electrodes 182.Coil connecting portion 132 can have to improve the connectivity between coil pattern 121,122,123,124
Have than coil pattern 121,122,123,124 broader line widths, and including the electric conductivity via through insulating layer 111.
Referring to Fig.2, dummy electrode 140 can be formed by corresponding in insulating layer 111 at the position of external electrode 181,182.It is empty
If electrode 140 can perform the effect for improving the clinging force between external electrode 181,182 and main body 101 or can be outside
Portion's electrode plays the role of bridge (bridge) in the case of being formed by metal deposition object.
As the material of coil pattern 121, coil lead division 131 and coil connecting portion 132, electric conductivity brilliance can be used
The electric conductivity object such as metal, i.e. copper (Cu), aluminium (Al), silver-colored (Ag), tin (Sn), golden (Au), nickel (Ni), lead (Pb) or its alloy
Matter.Can coil pattern 121, coil lead division 131 and coil connecting portion 132 be formed by metal deposition method or print process etc.,
However it is not limited to this.
As shown in Fig. 2, for the inductor 100 of first embodiment according to the present invention, formed in insulating layer 111
Coil pattern 121, coil lead division 131 or coil connecting portion 132 etc., then by insulating layer 111 along parallel with attachment face the
One direction is laminated and is manufactured, therefore compared with the past, can more easily manufacture inductor 100.Also, coil 120 with
Mode perpendicular to attachment face is arranged, therefore the phenomenon that can prevent from magnetic flux being made to be affected due to mounted substrate.
For the coil 120 of the inductor 100 of first embodiment according to the present invention, when projecting in a first direction
When, coil pattern 121,122,123,124 is overlapped and forms the coil track with the coil turn of 1 time or more.Moreover, it can incite somebody to action
Second coil pattern 122 and tertiary coil pattern 123 add together, so as to increase the coil turn of coil 120.
During specific observation, the first external electrode 181 is connect with first coil pattern 121 by means of coil lead division 131,
Then first to fourth coil pattern 121,122,123,124 is sequentially connected by means of coil connecting portion 132.Finally, the 4th
Coil pattern 124 is connect by means of coil lead division 131 with the second external electrode 182, so as to form coil 120.
For the inductor 100 of first embodiment according to the present invention, in coil pattern 121,122,123,124
At least part coil pattern 121,122,123,124 can arrange as follows：Make by with adjacent coil pattern knot
The coil track for closing and being formed has the number of turn of less than 1 time.
That is, due to a coil pattern in coil pattern 121,122,123,124 and adjacent coil pattern with reference to and
The coil track of formation has the number of turn of less than 1 time, therefore the coil pattern to adjoin each other and without along the first direction mutually
The region of overlapping.
For example, it as depicted in figs. 1 and 2, can arrange as follows：Whole coil patterns 121,122,123,124
With adjacent coil pattern with reference to and the coil track that is formed has the number of turn of less than 1 time.
Fig. 3 schematically shows the perspective elevation of the inductor 10 of comparative example.
Refering to Fig. 3, the major part of the coil 20 of high frequency electric sensor forms wired in multiple insulating layers as illustrated in fig. 3
Circular pattern 21,22,23,24,25,26, and each coil pattern 21,22,23,24,25,26 is carried out by coil connecting portion 32
It connects and is formed.The both ends of coil 20 are connect by coil lead division 31 with external electrode 81,82.From the figure 3, it may be seen that compare
The line formed in coil pattern 21,22,23,24,25,26 of the inductor 10 of example with each insulating layer and adjacent insulating layer
The equitant region of circular pattern.So-called adjacent windings pattern has overlapping region, represents following meaning：In coil track
In, by the coil track that 2 adjacent coil patterns are formed with the number of turn of 1 time or more.
In this way, coil pattern 21,22,23,24,25,26 adjacent to each other has overlapping region, therefore positioned at overlay region
The closing effect of repulsion etc will be generated between the coil pattern 21,22,23,24,25,26 in domain.That is, because generating positioned at weight
Closing effect between the coil pattern 21,22,23,24,25,26 in folded region, electric current on the whole can not be equably in coil
It flows through, therefore the impedance components of coil increase, so as to become the reason of Q characteristic of the factor of merit as inductor is deteriorated.
Figure 13 schematically show measure based on the inductor according to comparative example and it is according to the present invention first implement
The Q factor (Q factor) of the inductance of the inductor 100 of example, refering to Figure 13 to based on first embodiment according to the present invention
It inductor and is compared according to the Q characteristic of the inductor of comparative example.
Refering to Figure 13, the fact that following can be confirmed：Compared with comparative example, Q characteristic at least improves 2%, and improving highest can
Up to 12%.
That is, for the inductor 100 of first embodiment according to the present invention, coil pattern 121,122,123,124
In at least part coil pattern 121,122,123,124 by combined with adjacent coil pattern formed coil track
With the number of turn below 1 time, it is achieved that the closing effect generated between adjacent coil pattern 121,122,123,124
It is eliminated or minimized, so as to which the Q characteristic for making inductor 100 is improved.
In the present specification, it can be applied to other embodiment about the item of first embodiment.
Fig. 4 schematically shows the perspective elevation of inductor 200 according to the second embodiment of the present invention, and Fig. 5 presses layer
Folded sequence shows to be contained in the figure of the plan view of the coil pattern of inductor 200 shown in Fig. 4, and Fig. 6 shows to work as from inductance shown in Fig. 4
The coil track that coil pattern is overlapped and is formed during the front observation of device.
Inductor 200 according to the second embodiment of the present invention is illustrated refering to fig. 4 to fig. 6.
The main body 201 of inductor 200 according to the second embodiment of the present invention can by along with attachment face it is parallel first
Direction is laminated multiple insulating layers 211 and is formed.The insulating layer 211 can be magnetosphere or dielectric layer.
The outside of main body 101 can arrange the first external electrode 281 and the second external electrode 282.
For example, the first external electrode 281 and the second external electrode 282 can be disposed at the attachment face of main body 201.So-called patch
Dress face is represented when inductor is mounted on printed circuit board towards the surface of printed circuit board.
External electrode 281,282 performs following effect：When inductor 200 is mounted on printed circuit board (PCB), make
Inductor 200 is electrically connected to substrate.External electrode 281,282 is mutually separated in main body 201 and is arranged in first direction and puts down
Row is in the edge of the second direction in attachment face.
Coil pattern 221,222,223,224 can be formed refering to Fig. 4 and Fig. 5, in insulating layer 211.According to the present invention
In the inductor 200 of second embodiment, coil pattern 221,222,223,224 includes the first circular pattern 221, the second circular pattern
222nd, third circular pattern 223, the 4th coil pattern 224.
First to fourth coil pattern 221,222,223,224 can by coil connecting portion 232 and with adjacent circuit diagram
Case is electrically connected to each other.That is, spiral first to fourth coil pattern 221,222,223,224 is connected by coil connecting portion 232
It connects and forms coil 220.The both ends of coil 220 by means of coil lead division 231 and respectively with the first external electrode 281 and
Two external electrodes 282 connect.
Coil connecting portion 232 can have than line to improve the connectivity between coil pattern 221,222,223,224
Circular pattern 221,222,223,224 broader line widths, and including the electric conductivity via through insulating layer 211.
Refering to Fig. 5, dummy electrode 240 can be formed by corresponding in insulating layer 211 at the position of external electrode 281,282.It is empty
If electrode 240 can perform the effect of the clinging force between raising external electrode 281,282 and main body 201 or in external electrode
It can play the role of bridge (bridge) in the case of being formed by metal deposition object.
As shown in figure 4, for inductor 200 according to the second embodiment of the present invention, formed in insulating layer 211
Coil pattern 221, coil lead division 231 or coil connecting portion 232 etc., then by insulating layer 211 along parallel with attachment face the
One direction is laminated and is manufactured, therefore compared with the past, can more easily manufacture inductor 200.Moreover, because coil
220 arrange, therefore in a manner of perpendicular to attachment face the phenomenon that can prevent from magnetic flux being made to be affected due to mounted substrate.
Refering to Fig. 6, for the coil 220 of inductor 200 according to the second embodiment of the present invention, when in first party
Upwards during projection, coil pattern 221,222,223,224 is overlapped and forms the coil track with the coil turn of 1 time or more.
Only, coil is projected in a first direction and forms coil track, other embodiment of this point other than second embodiment
In it is also identical.
Also, the line of coil 220 can be made by adding the second coil pattern 222 and tertiary coil pattern 223 together
Enclosing the number of turn increases.
During specific observation, the first external electrode 281 is connect with first coil pattern 221 by means of coil lead division 231,
Then first to fourth coil pattern 221,222,223,224 is sequentially connected by means of coil connecting portion 232.Finally, the 4th
Coil pattern 224 is connect by means of coil lead division 231 with the second external electrode 282, so as to form coil 220.
For inductor 200 according to the second embodiment of the present invention, in coil pattern 221,222,223,224
At least part coil pattern 221,222,223,224 can arrange as follows：By combined with adjacent coil pattern and
The coil track of formation has the number of turn of less than 1 time.
That is, due to a coil pattern in coil pattern 221,222,223,224 by with adjacent coil pattern knot
The coil track for closing and being formed has the number of turn of less than 1 time, therefore the coil pattern to adjoin each other and without along the first direction
Overlapped region.
For example, as shown in Figures 4 to 6, can make the second coil pattern 222 and tertiary coil pattern 223 be combined with each other and
The coil track of formation has the number of turn of less than 1 time.At this point, for being located at most gabarit in coil pattern 221,222,223,224
For 221 and the 4th coil pattern 224 of first coil pattern of layer, coil track can have the number of turn of 1 time or more.
That is, in order to improve Q characteristic, formed when the second coil pattern 222 is made to be combined with each other with tertiary coil pattern 223
When coil track has the number of turn of less than 1 time, make to be arranged in the number of turn that the coil pattern of most gabarit layer has 1 time or more, so as to
The insufficient number of turn is compensated, is achieved in the minimum of the closing effect between adjacent coil pattern, at the same time can be improved
The characteristic of inductor.At this point, can will be positioned at the outside of 221 and the 4th coil pattern 224 of first coil pattern of most gabarit layer
The diameter of spiral becomes larger, so as to so that 221 and the 4th coil pattern 224 of first coil pattern is mutually be overlapped with adjacent coil pattern
Folded region minimizes.
For the inductor 200 as the second embodiment of the present invention, position in coil pattern 221,222,223,224
In center portion coil pattern 222,223 and adjacent coil pattern with reference to and the coil track that is formed has less than 1 time
The number of turn, therefore can realize the elimination close to effect generated between adjacent coil pattern 221,222,223,224 or minimum
Change, so as to improve the Q characteristic of inductor 200.
Refering to Fig. 6, on coil track, coil connecting portion 232 can be disposed at 2 positions.In particular, on coil track
2 coil connecting portions 232 is made mutually to be located on diagonal A, so as to so that adjacent coil pattern realizes minimum the phenomenon that overlapping
Change.
In the present specification, it can be applied to other embodiment about the item of second embodiment.
Fig. 7 schematically shows the perspective elevation of inductor 300 according to the third embodiment of the invention, and Fig. 8 presses layer
Folded sequence shows to be contained in the plan view of the coil pattern of inductor 300 shown in Fig. 7.
Refering to Fig. 7 and Fig. 8, inductor 300 according to the third embodiment of the invention is illustrated.
According to the third embodiment of the invention the main body 301 of inductor 300 can by along with attachment face it is parallel first
Direction is laminated multiple insulating layers 311 and is formed.The insulating layer 311 can be magnetosphere or dielectric layer.
The outside of main body 301 can arrange the first external electrode 381 and the second external electrode 382.
For example, the first external electrode 381 and the second external electrode 382 can be disposed at the attachment face of main body 301.So-called patch
Dress face is represented when inductor is mounted on printed circuit board towards the surface of printed circuit board.
External electrode 381,382 performs following effect：Make when inductor 300 is mounted on printed circuit board (PCB)
Inductor 300 is electrically connected to substrate.External electrode 381,382 is mutually separated in main body 301 and is arranged in first direction and puts down
Row is in the edge of the second direction in attachment face.
Coil pattern 321,322,323,324 can be formed refering to Fig. 7 and Fig. 8, in insulating layer 311.According to the present invention
In the inductor 300 of 3rd embodiment, coil pattern 321,322,323,324 includes first coil pattern 321, the second circuit diagram
Case 322, tertiary coil pattern 323, the 4th coil pattern 324.By Fig. 7 and Fig. 8 it is found that according to the third embodiment of the invention
Inductor 300 includes 2 the second coil patterns 322.
First to fourth coil pattern 321,322,323,324 can by coil connecting portion 332 and with adjacent circuit diagram
Case is electrically connected to each other.
Coil connecting portion 332 can have than line to improve the connectivity between coil pattern 321,322,323,324
Circular pattern 321,322,323,324 broader line widths, and including the electric conductivity via through insulating layer 311.
Refering to Fig. 8, dummy electrode 340 can be formed with by corresponding in insulating layer 311 at the position of external electrode 381,382.
As shown in figure 8, for inductor 300 according to the third embodiment of the invention, formed in insulating layer 311
Coil pattern 321, coil lead division 331 or coil connecting portion 332 etc., then by insulating layer 311 along parallel with attachment face the
One direction is laminated and is manufactured, therefore compared with the past, can more easily manufacture inductor 300.Also, due to coil
320 arrange, therefore in a manner of perpendicular to attachment face the phenomenon that can prevent from magnetic flux being made to be affected due to mounted substrate.
For the coil 320 of inductor 300 according to the third embodiment of the invention, projected when from first direction
When, coil pattern 321,322,323,324 is overlapped and forms the coil track with the coil turn of 1 time or more.
Moreover, the line of coil 320 can be increased by adding the second coil pattern 322 and tertiary coil pattern 323 together
Enclose the number of turn.
For inductor 300 according to the third embodiment of the invention, in coil pattern 321,322,323,324
At least part coil pattern 322,323 can arrange as follows：By being combined the line to be formed with adjacent coil pattern
Enclosing track has the number of turn of less than 1 time.
That is, the coil track that a coil pattern in coil pattern is incorporated into adjacent windings pattern and is formed has 1 time
The following number of turn, therefore the coil pattern that adjoins each other and without region overlapped along the first direction.
For example, as shown in Figure 7 and Figure 8, can make the second coil pattern 322 and tertiary coil pattern 323 be combined with each other and
The coil track of formation has the number of turn of less than 1 time.At this point, for being located at most gabarit in coil pattern 321,322,323,324
For 4th coil pattern 324 of layer, coil track can have the number of turn of 1 time or more.
That is, in order to improve Q characteristic, formed the second coil pattern 322 is be combined with each other with tertiary coil pattern 323
In the case that coil track is formed as with the number of turn of less than 1 time, the coil pattern for being arranged in most gabarit layer can be made to have 1 time
The above number of turn so as to compensate the insufficient number of turn, therefore can realize the minimum of the closing effect between adjacent coil pattern,
At the same time the characteristic of inductor can be improved.Here, can will be positioned at the spiral in the outside of the 4th coil pattern 324 of most gabarit layer
Diameter increase, so as to minimize the 4th coil pattern 324 and the equitant region of coil pattern adjacent thereto.
For the inductor 300 as the third embodiment of the present invention, position in coil pattern 321,322,323,324
In center portion coil pattern 322,323 and adjacent coil pattern with reference to and the coil track that is formed has less than 1 time
The number of turn, therefore can realize being eliminated or minimized for the closing effect generated between adjacent coil pattern 321,322,323,324,
So as to improve the Q characteristic of inductor 300.
In the present specification, it can be applied to other embodiment about the item of 3rd embodiment.
Fig. 9 schematically shows the perspective elevation of inductor 400 according to the fourth embodiment of the invention, and Figure 10 presses layer
Folded sequence shows to be contained in the plan view of the coil pattern in inductor 400 shown in Fig. 9.
Refering to Fig. 9 and Figure 10, inductor 400 according to the fourth embodiment of the invention is illustrated.
The main body 401 of inductor 400 according to the fourth embodiment of the invention can be along the first direction parallel with attachment face
Multiple insulating layers 411 are laminated and are formed.The insulating layer 411 can be magnetosphere or dielectric layer.
The outside of main body 401 can be disposed with the first external electrode 481 and the second external electrode 482.
For example, the first external electrode 481 and the second external electrode 482 can be disposed at the attachment face of main body 401.So-called patch
Dress face refers to when inductor is mounted on printed circuit board towards the surface of printed circuit board.
External electrode 481,482 performs following effect：When inductor 400 is mounted on printed circuit board (PCB), make
Inductor 400 is electrically connected with substrate.External electrode 481,482 is mutually separated in main body 401 and is arranged in first direction and puts down
Row is in the edge of the second direction in attachment face.
Coil pattern 421,422,423,424,425,426 can be formed with refering to Fig. 9 and Figure 10, in insulating layer 411.In root
According in the inductor 400 of the fourth embodiment of the present invention, coil pattern 421,422,423,424,425,426 includes first coil
Pattern 421, the second coil pattern 422, tertiary coil pattern 423, the 4th coil pattern 424, the 5th coil pattern the 425, the 6th
Coil pattern 426.
First to the 6th coil pattern 421,422,423,424,425,426 can by coil connecting portion 432 and with it is adjacent
Coil pattern be electrically connected to each other.
Coil connecting portion 432 can in order to improve the connectivity between coil pattern 421,422,423,424,425,426
With than coil pattern 421,422,423,424,425,426 broader line widths, and including the electric conductivity mistake through insulating layer 411
Hole.
Refering to Figure 10, dummy electrode 440 can be formed with by corresponding in insulating layer 411 at the position of external electrode 481,482.
As shown in Figure 10, for inductor 400 according to the fourth embodiment of the invention, the shape in insulating layer 411
Into coil pattern 421, coil lead division 431 or coil connecting portion 432 etc., then by insulating layer 411 along parallel with attachment face
First direction is laminated and is manufactured, therefore compared with the past, can more easily manufacture inductor 400.Also, coil 420
The phenomenon that being arranged in a manner of perpendicular to attachment face, therefore can preventing from magnetic flux being made to be affected due to mounted substrate.
For the coil 420 of inductor 400 according to the fourth embodiment of the invention, projected when from first direction
When, coil pattern 421,422,423,424,425,426 is overlapped and forms the coil track with the coil turn of 1 time or more.
Also, the line of coil 420 can be increased by adding the second coil pattern 422 and tertiary coil pattern 423 together
Enclose the number of turn.
For the inductor 400 according to fourth embodiment, in coil pattern 421,422,423,424,425,426
At least part coil pattern 422,423 can arrange as follows：By being combined the line to be formed with adjacent coil pattern
Enclosing track has the number of turn of less than 1 time.
That is, the coil track that a coil pattern in coil pattern is incorporated into adjacent coil pattern and is formed has 1
The following number of turn is returned, therefore the coil pattern to adjoin each other and without region overlapped along the first direction.
For example, as shown in Figure 9 and Figure 10, can make the second coil pattern 422 and tertiary coil pattern 423 be combined with each other and
The coil track of formation has the number of turn of less than 1 time.At this point, the first coil pattern for being located at most gabarit layer in coil pattern
421 and the 6th centrally located part in coil pattern 426 and coil pattern the 4th coil pattern 424 and the 5th coil pattern
For 425, coil track can have the number of turn of 1 time or more.
That is, in order to improve Q characteristic, formed the second coil pattern 422 is be combined with each other with tertiary coil pattern 423
In the case that coil track is formed as with the number of turn of less than 1 time, the coil pattern for making to be arranged in most gabarit layer has 1 time or more
The number of turn, so as to compensate the insufficient number of turn, be achieved in the minimum of the closing effect between adjacent coil pattern, it is same with this
When can improve the characteristic of inductor.At this point, by first coil pattern 421, the 4th coil pattern 424, the 5th coil pattern 425 and
The diameter increase of the spiral in the outside of the 6th coil pattern 426, so as to so that the region of adjacent coil pattern overlapping is realized
It minimizes.
For the inductor 400 as the fourth embodiment of the present invention, coil pattern 421,422,423,424,
425th, a part of coil pattern 422,423 in 426 and adjacent coil pattern with reference to and the coil track that is formed have 1 time with
Under the number of turn, therefore can realize the closing effect generated between adjacent coil pattern 421,422,423,424,425,426
It is eliminated or minimized, so as to improve the Q characteristic of inductor 400.
In the present specification, it can be applied to other embodiment about the item of fourth embodiment.
Figure 11 schematically shows the perspective elevation of inductor 500 according to the fifth embodiment of the invention, and Figure 12 is pressed
Lamination order shows to be contained in the plan view of the coil pattern of inductor 500 shown in Figure 11.
Refering to Figure 11 and Figure 12, inductor 500 according to the fifth embodiment of the invention is illustrated.
The main body 501 of inductor 500 according to the fifth embodiment of the invention can be along the first direction parallel with attachment face
Multiple insulating layers 511 are laminated and are formed.The insulating layer 511 can be magnetosphere or dielectric layer.
The outside of main body 501 can be disposed with the first external electrode 581 and the second external electrode 582.
For example, the first external electrode 581 and the second external electrode 528 can be disposed at the attachment face of main body 501.So-called patch
Dress face refers to when inductor is mounted on printed circuit board towards the surface of printed circuit board.
External electrode 581,582 performs following effect：When inductor 500 is mounted on printed circuit board (PCB), make
Inductor 500 is electrically connected to substrate.External electrode 581,582 is mutually separated in main body 501 and is arranged in first direction and puts down
Row is in the edge of the second direction in attachment face.
Coil pattern 521,522,523,524,525,526 can be formed refering to Figure 11 and Figure 12, in insulating layer 511.In root
According in the inductor 500 of the fifth embodiment of the present invention, coil pattern 521,522,523,524,525,526 includes first coil
Pattern 521, the second coil pattern 522, tertiary coil pattern 523, the 4th coil pattern 524, the 5th coil pattern the 525, the 6th
Coil pattern 526.
First to the 6th coil pattern 521,522,523,524,525,526 can by means of coil connecting portion 532 and with phase
Adjacent coil pattern is electrically connected to each other.
Coil connecting portion 532 can in order to improve the connectivity between coil pattern 521,522,523,524,525,526
With than coil pattern 521,522,523,524,525,526 broader line widths, and including the electric conductivity mistake through insulating layer 511
Hole.
Refering to Figure 12, dummy electrode 540 can be formed with by corresponding in insulating layer 511 at the position of external electrode 581,582.
As shown in figure 12, for inductor 500 according to the fifth embodiment of the invention, the shape in insulating layer 511
Into coil pattern 521, coil lead division 531 or coil connecting portion 532 etc., then by insulating layer 511 along the attachment face of being parallel to
First direction is laminated and is manufactured, therefore compared with the past, can more easily manufacture inductor 500.Also, due to coil
520 arrange, therefore in a manner of perpendicular to attachment face the phenomenon that can prevent from magnetic flux being made to be affected due to mounted substrate.
For the coil 520 of inductor 500 according to the fifth embodiment of the invention, projected when from first direction
When, coil pattern 521,522,523,524,525,526 is overlapped and forms the coil track with the number of turn of 1 time or more.
Moreover, the line of coil 520 can be increased by adding the second to the 5th coil pattern 522,523,524,525 together
Enclose the number of turn.
For inductor 500 according to the fifth embodiment of the invention, coil pattern 521,522,523,524,
525th, at least part coil pattern 523,524 in 526 can arrange as follows：By being combined with adjacent coil pattern
And the coil track formed has the number of turn of less than 1 time.
That is, the coil track that a coil pattern in coil pattern is incorporated into adjacent coil pattern and is formed has 1
The following number of turn is returned, therefore the coil pattern to adjoin each other and without region overlapped along the first direction.
For example, as is illustrated by figs. 11 and 12, can make tertiary coil pattern 523 and the 4th coil pattern 524 be combined with each other and
The coil track of formation has the number of turn of less than 1 time.At this point, the first coil pattern for being located at most gabarit layer in coil pattern
521 and the 6th centrally located part in coil pattern 526 and coil pattern the second coil pattern 522 and the 5th coil pattern
For 525, coil track can have the number of turn of 1 time or more.
That is, in order to improve Q characteristic, formed tertiary coil pattern 523 and the 4th coil pattern 524 are be combined with each other
In the case that coil track is formed as with the number of turn of less than 1 time, the coil pattern for making to be arranged in most gabarit layer has 1 time or more
The number of turn, so as to compensate the insufficient number of turn, be achieved in the minimum of the closing effect between adjacent coil pattern, it is same with this
When can improve the characteristic of inductor.At this point, by first coil pattern 521, the second coil pattern 522, the 5th coil pattern 525 and
The diameter increase of the spiral in the outside of the 6th coil pattern 526, so as to so that the region of adjacent coil pattern overlapping is minimum
Change.
Also, refering to Figure 12, tertiary coil figure is disposed between the second coil pattern 522 with the number of turn of 1 time or more
Case 523.Second coil pattern 522 has the number of turn of about 1.5 times, due to the coil pattern in outside in the second coil pattern 522
Diameter it is bigger than tertiary coil pattern 523, therefore can realize be overlapped between the second coil pattern 522 and tertiary coil pattern 523
The minimum in region.Moreover, because tertiary coil pattern 523 is arranged between the second coil pattern 522 with same shape,
Therefore it can increase coil turn, at the same time minimize closing effect.This effect can also be in the 4th coil pattern 524 and
It is applicable in five coil patterns 525.
For the inductor 500 as the fifth embodiment of the present invention, coil pattern 521,522,523,524,
525th, a part of coil pattern 523,524 in 526 and adjacent coil pattern with reference to and the coil track that is formed have 1 time with
Under the number of turn, therefore can realize the closing effect generated between adjacent coil pattern 521,522,523,524,525,526
It is eliminated or minimized, so as to improve the Q characteristic of inductor 500.
In the present specification, the item about the 5th embodiment can be applied to other embodiment.
The mounted substrate of inductor
Figure 14 schematically shows the mounted substrate 1000 of inductor according to another embodiment of the present invention.
Refering to Figure 14, the mounted substrate 1000 of inductor according to another embodiment of the present invention includes being disposed with electrode weldering
The plate substrate 1010 of disk 1021.
Electrode pad 1021 can include first electrode pad and second electrode pad respectively.
The top of substrate 1010 can arrange the inductor 100 of first embodiment, however be not limited to this, can also arrange
Second embodiment is at least one of to the inductor of the 5th embodiment.First external electrode 181 and the second external electrode 182 can
It is connected to first electrode pad and second electrode pad.
More than, the embodiment of the present invention is described in detail, however the present invention is not by as described above real
It applies example and attached drawing is limited, and be intended to be defined by means of claims.
It therefore, can be by institute of the present invention in the limit of technological thought for not departing from the present invention described in claim
The personnel for having basic knowledge in the technical field of category realize displacement, deformation and the change of various form, for the purposes of this disclosure those
Belong to the scope of the present invention.
Claims (16)
1. a kind of inductor, including：
Main body, it is multiple insulation layer stackups and formed；
First external electrode and the second external electrode are arranged in the outside of the main body；And
Coil is interconnected to form by the coil pattern for being arranged in the insulating layer by coil connecting portion, and both ends pass through
Coil lead division is connected to first external electrode and second external electrode,
Wherein, when being projected from predetermined direction, the coil pattern is overlapped and forms coil track the coil,
For at least part coil pattern in the coil pattern, with adjacent coil pattern with reference to and formed line
Enclosing track has the number of turn of less than 1 time.
2. inductor as described in claim 1, wherein, for whole coil patterns in the coil pattern, with phase
The coil track that adjacent coil pattern is combined and formed is with the number of turn of less than 1 time.
3. inductor as described in claim 1, wherein, one be located in the coil pattern in the most coil pattern of gabarit layer
A coil pattern is coil pattern of the coil track with the number of turn of 1 time or more.
4. inductor as described in claim 1, wherein, at least one of described coil pattern coil pattern is coil track
Coil pattern with the number of turn of 1 time or more.
5. inductor as described in claim 1, wherein, the coil connecting portion is arranged in 2 positions on the coil track
Put place.
6. inductor as claimed in claim 5, wherein, the coil connecting portion is mutually located at diagonal on the coil track
On.
7. inductor as described in claim 1, wherein, direction layer of the insulating layer along the attachment face level with inductor
It is folded.
8. inductor as described in claim 1, wherein, first external electrode and the second external electrode are in the patch of inductor
Dress face is separated by and arranges.
9. a kind of mounted substrate of inductor, including：
Substrate is disposed with first electrode pad and second electrode pad；And
Inductor is arranged in the substrate,
Wherein, the inductor includes：
Main body, it is multiple insulation layer stackups and formed；
First external electrode and the second external electrode are arranged in the outside of the main body；And
Coil is interconnected to form by the coil pattern for being arranged in the insulating layer by coil connecting portion, and both ends pass through
Coil lead division is connected to first external electrode and second external electrode,
Wherein, when being projected from predetermined direction, the coil pattern is overlapped and forms coil track the coil,
For at least part coil pattern in the coil pattern, with adjacent coil pattern with reference to and formed line
Enclosing track has the number of turn of less than 1 time.
10. the mounted substrate of inductor as claimed in claim 9, wherein, for whole circuit diagrams in the coil pattern
For case, with adjacent coil pattern with reference to and the coil track that is formed has the number of turn of less than 1 time.
11. the mounted substrate of inductor as claimed in claim 9, wherein, positioned at the line of most gabarit layer in the coil pattern
A coil pattern in circular pattern is coil pattern of the coil track with the number of turn of 1 time or more.
12. the mounted substrate of inductor as claimed in claim 9, wherein, at least one of described coil pattern circuit diagram
Case is coil pattern of the coil track with the number of turn of 1 time or more.
13. the mounted substrate of inductor as claimed in claim 9, wherein, the coil connecting portion is on the coil track
It is arranged at 2 positions.
14. the mounted substrate of inductor as claimed in claim 13, wherein, the coil connecting portion is on the coil track
Mutually it is located on diagonal.
15. the mounted substrate of inductor as claimed in claim 9, wherein, the insulating layer edge and the attachment face water of inductor
Flat direction is laminated.
16. the mounted substrate of inductor as claimed in claim 9, wherein, first external electrode and the second external electrode
It is separated by and arranges in the attachment face of inductor.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020160174503A KR102597150B1 (en) | 2016-12-20 | 2016-12-20 | Inductor and board having the same |
| KR10-2016-0174503 | 2016-12-20 |
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| CN108206087A true CN108206087A (en) | 2018-06-26 |
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Cited By (2)
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| CN111667992A (en) * | 2019-03-06 | 2020-09-15 | 三星电机株式会社 | Coil electronic component |
| CN112309690A (en) * | 2019-07-29 | 2021-02-02 | 三星电机株式会社 | Coil component |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102559344B1 (en) * | 2018-08-13 | 2023-07-25 | 삼성전기주식회사 | Indctor |
| JP7266996B2 (en) | 2018-11-20 | 2023-05-01 | 太陽誘電株式会社 | Inductors, filters and multiplexers |
| TWI724965B (en) * | 2020-09-03 | 2021-04-11 | 奇力新電子股份有限公司 | Inductance device |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20180071645A (en) | 2018-06-28 |
| CN108206087B (en) | 2020-10-30 |
| KR102597150B1 (en) | 2023-11-02 |
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