CN201307489Y - Multi-layer chip coil integrated piece - Google Patents
Multi-layer chip coil integrated piece Download PDFInfo
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- CN201307489Y CN201307489Y CNU2008202130156U CN200820213015U CN201307489Y CN 201307489 Y CN201307489 Y CN 201307489Y CN U2008202130156 U CNU2008202130156 U CN U2008202130156U CN 200820213015 U CN200820213015 U CN 200820213015U CN 201307489 Y CN201307489 Y CN 201307489Y
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Abstract
The utility model provides a multi-layer chip coil integrated piece, comprising at least two groups of coils and a plurality of insulating layers; each coil comprises multi-layer spiral electrode patterns which are formed by connection layer by layer, and the electrode pattern layer belonging to the coil in different groups are embedded, staggered and laminated; a plurality of the insulating layers are arranged between the adjacent electrode pattern layers belonging to the coils in different groups at interval, and the adjacent electrode pattern layers belonging to the coil in same group are electrically connected with each other by getting across the insulating layer arranged between the adjacent electrode pattern layers. In the multi-layer chip coil integrated piece, the multi-layer electrode patterns in at least two groups of the coils are embedded, staggered and laminated, thereby improving space utilization ratio, increasing coupling factor of the coil and increasing the integrated density; the multi-layer chip coil integrated piece is suitable for high-intensity assembling requirements of surface mounting technology, and can be used for inductor pieces common-mode signal inhibition, signal transformation, voltage change and the like.
Description
[technical field]
The utility model relates to electronic building brick, relates in particular to a kind of lamination sheet type coil integration member.
[background technology]
The continuous miniaturization of electronic equipment, corresponding components and parts also more and more are tending towards miniaturization, chip type, integrated.At present, therefore components and parts miniaturization size is further to improve space availability ratio near the limit, and integrated is inevitable trend.
At present the integrated technology of components and parts mainly comprise with a plurality of components and parts be assembled in a plastic-sealed body neutralization by the LTCC technology with these two kinds of main technology of the integrated formation functional module of a plurality of components and parts.The former major defect is that the reliability of assembling is not high, and maximum shortcoming is that thermal diffusivity is bad, and does not save how many spaces.The latter mainly relies on thin film technique and thick film technology.The thick film technology development that is used for chip inductor now is rapid, obtains the stack technology that is based on thick film technology of extensive promotion and application; The inductor that adopts stack technology to make abbreviates MLCI as, and this technology can be used to make the winding of capacitor, transformer of lamination sheet type and LC filter etc. equally.With the inductor is example, and traditional inductor is formed on magnetic core by copper conductor, has pin base or is the straight wire structure; General volume is bigger, and is not easy to surface mount.Also have at present volume little, can surface-pasted wire wound inducer owing to belong to package assembly, therefore relatively poor aspect mechanical performance and reliability.Be to improve space availability ratio, inductor adopts stack technology that a plurality of coils are integrated in the single inductor aspect integrated, and a plurality of coils are spatially separate each other, form electric inductance array.This integration mode, make space availability ratio that raising to a certain degree arranged, still, this mode is equivalent to a plurality of small size inductors are integrated in the large size electro sensor, the raising rate of whole inductor space utilization is not high, has only saved the gap between the inductor.
[utility model content]
In view of this, be necessary to provide a kind of space availability ratio height, the integrated lamination sheet type coil integration member of high density.
For achieving the above object, a kind of lamination sheet type coil integration member is provided, it comprises at least two group coils and a plurality of insulating barrier, every group of coil comprises the multi-layered electrode pattern that helical form is joined layer by layer, belong to not the electrode pattern layer phase embedding intersecting in the coil on the same group, described a plurality of insulating barriers belong in the same group of coil adjacent electrode pattern layer and cross therebetween insulating barrier and be electrically connected at interval in belonging to not coil on the same group between the adjacent electrode pattern layer.
Described lamination sheet type coil integration member replaces nested and spacer insulator layer mutually with the multi-layered electrode pattern of at least two group conductive coils, and the space that is equivalent to only to take one group of coil can be wound in one with at least two group conductive coils.The pattern of coil spatially overlaps mutually by stack technology, realize in the same way altogether around.Thereby this coil integration member size dwindles, and has characteristics such as space availability ratio height, high density be integrated, can meet the High Density Packaging requirement of surface mounting technology.The shared space of lamination sheet type coil integration member of adopting present technique to make can be reduced to that traditional laminated chip inductor takes up space below 1/2.
[description of drawings]
Fig. 1 is the internal structure schematic diagram of the lamination sheet type coil integration member of the utility model preferred embodiment.
Fig. 2 is the projection structure schematic diagram in central axial direction of the lamination sheet type coil integration member of the utility model preferred embodiment.
Fig. 3 is that coil integration member among Fig. 1 is along the cross section structure schematic diagram of A-A line.
Fig. 4 is that coil integration member among Fig. 1 is along the cross section structure schematic diagram of B-B line.
Fig. 5 is the profile schematic diagram that the coil integration member among Fig. 1 increases termination electrode.
Fig. 6 is the structural representation after Fig. 5 structure partial dissects.
Fig. 7 is the planar structure schematic diagram of the exit pattern of first group of coil one end.
Fig. 8 is the planar structure schematic diagram of the exit pattern of first group of coil other end.
Fig. 9 is the planar structure schematic diagram of electrode pattern in first kind in first group of coil.
Figure 10 is the planar structure schematic diagram of electrode pattern in second kind in first group of coil.
Figure 11 is the planar structure schematic diagram of the exit pattern of second group of coil one end.
Figure 12 is the planar structure schematic diagram of the exit pattern of second group of coil other end.
Figure 13 is the planar structure schematic diagram of electrode pattern in first kind in second group of coil.
Figure 14 is the planar structure schematic diagram of electrode pattern in second kind in second group of coil.
Figure 15 is the planar structure schematic diagram of first kind of insulating barrier through hole.
Figure 16 is the planar structure schematic diagram of second kind of insulating barrier through hole.
Figure 17 is the planar structure schematic diagram of the third insulating barrier through hole.
Figure 18 is the planar structure schematic diagram of the 4th kind of insulating barrier through hole.
Figure 19 is each layer of lamination sheet type coil integration member decomposition texture schematic diagram of the utility model preferred embodiment.
[embodiment]
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Seeing also Fig. 1, is the preferred embodiment of the utility model lamination sheet type coil integration member, and it comprises first group of coil 10 and second group of coil 20, and a plurality of insulating barrier 30.Every group of coil 10 or 20 comprises that all integral body presents the helical form stacked multi-layered electrode pattern that joins that rises, and also is that the multi-layered electrode combinations of patterns in every group of coil 10 or 20 forms spiralling coil shape.
See also Fig. 1 and 2, first group of coil 10 has exit pattern 12 and 18 respectively at its two ends, is used for being electrically connected with external circuit or power supply.Similarly, second group of coil 20 also has exit pattern 22 and 28 respectively at its two ends.Exit pattern 22 mutually insulateds of the exit pattern 12 of first group of coil 10 and second group of coil 20.The exit pattern 18 of first group of coil 10 and the exit pattern 28 of second group of coil 20 be mutually insulated also.And, be positioned at the exit pattern 12 of first group of coil 10 of top homonymy and the exit pattern 22 of second group of coil 20 and be separated from each other, can adopt as shown in Figure 1 be distributed in symmetrically mutually away from both sides.Similarly, the exit pattern 28 of the exit pattern 18 of first of homonymy group of coil 10 and second group of coil 20 also is separated from each other below, adopt as shown in Figure 1 be distributed in symmetrically mutually away from both sides.First group of coil 10 and second group of coil 20 can realize in the same way altogether around, become one structure.
Please in conjunction with consulting Fig. 1,3,4 and Figure 19, the exit pattern 12 of first group of coil 10 and the exit pattern 22 of second group of coil 20 are isolated by insulating barrier 31, and the exit pattern 18 of first group of coil 10 and the exit pattern of second group of coil 20 28 insulating barriers 37 are isolated.First group of coil 10 comprises that 14,16, the second groups of coils 20 of interior electrode pattern that are electrically connected successively comprise the interior electrode pattern 24,26 that is electrically connected successively.These two interior electrode patterns 14,16 constitute a coil unit, i.e. two interior electrode pattern 14,16 directions in axes O, promptly surround the circle or the ring of a sealing perpendicular to the projection on the direction on patterned layer surface, shown in the figure one circle is a square ring, certainly in actual applications, one circle is toroidal or vesica piscis etc. also, is not limited to this.Preferably, two interior electrode patterns 14,16 are divided a circle equally, promptly are respectively the shape of half-turn or half ring.Similar with the interior electrode pattern 14,16 of first group of coil 10, the interior electrode pattern 24,26 of second group of coil 20 also can constitute a coil unit, is preferably the shape of half-turn or half ring respectively.
The interior electrode pattern 14,16 of first group of coil 10 can be respectively intersects and overlaps in the projection of the direction of axes O with the interior electrode pattern 24,26 of second group of coil 20.The rotate to an angle interior electrode pattern 24,26 of back and second group of coil 20 of the interior electrode pattern 14,16 that also can be regarded as first group of coil 10 is all overlapping fully or overlap in the projection of the direction of axes O.As shown in Figure 1, the interior electrode pattern 14 of first group of coil 10 revolves around axes O and turn 90 degrees, can realize that the interior electrode pattern 16 of first group of coil 10 and the interior electrode pattern 26 of second group of coil 20 also have the characteristics that are similar to this along the direction projection of axes O and interior electrode pattern 24 overlaids of second group of coil 20.In fact, belong to not between on the same group interior each layer of electrode pattern and all have these characteristics.Wherein, interior electrode pattern 24 mutually insulateds of the exit pattern 12 of first group of coil 10 and second group of coil 20 for example are isolated by insulating barrier 32.Certainly, also can projection section or whole reduplicative forms between each patterned layer, but the form that contracts or extend out in presenting gradually, also promptly according to a definite sequence as the interior encirclement of patterned layer from top to bottom gradually inwardly by certain reduce in scale skew, form the loop construction of spiral tower shape.
Insulating barrier 33 in interval between the interior electrode pattern 24 of second group of coil 20 and the interior electrode pattern 14 of first group of coil 10 makes it isolated mutually.Between the exit pattern 22 of second group of coil 20 and interior electrode pattern 24, have the exit pattern 22 of 31,32, the second groups of coils 20 of dielectric layers and the projection on the direction of interior electrode pattern 24 in axes O overlaps mutually, promptly overlap in the end.As shown in Figure 4, can be by offering two through holes in the position of dielectric layers 31,32 correspondences, in two through holes, fill then with conductor 50, as scolder or other electric conducting materials etc., the exit pattern 22 that makes second group of coil 20 is crossed or is passed dielectric layers 31,32 with interior electrode pattern 24 and realizes being electrically connected mutually.Do not indicate every layer insulating among Fig. 1, understand for convenient, the insulating material of Fig. 1 is shown as transparent, and in fact, the space between each patterned layer all can be filled by insulating barrier, so that each patterned layer is isolated mutually.The insulating barrier of adjacent patterns layer adopts profile type and be used at interval in Fig. 3 and 4, to be different from the adjacent patterns layer, in the practical application, these insulating barriers that are interval in the patterned layer can be one with the insulating material that surrounds patterned layer, the structure that promptly all insulating barriers fuse adopts same material.
Similarly, between the exit pattern 12 of first group of coil 10 and interior electrode pattern 14, have the exit pattern 12 of 32,33, the first groups of coils 10 of dielectric layers and the projection on the direction of interior electrode pattern 14 in axes O overlaps mutually, promptly overlap in the end.As shown in Figure 3, can be by offering two through holes in the position of dielectric layers 32,33 correspondences, in two through holes, fill with conductor 50 then, make the exit pattern 12 of first group of coil 10 cross dielectric layers 32,33 realizations and be electrically connected mutually with interior electrode pattern 14.
Then, insulating barrier 34 in interval between the interior electrode pattern 14 of first group of coil 10 and the interior electrode pattern 26 of second group of coil 20 makes it isolated mutually.Insulating barrier 35 in interval between the interior electrode pattern 26 of second group of coil 20 and the interior electrode pattern 16 of first group of coil 10 makes it isolated mutually, shown in Fig. 3,4.Insulating barrier 36 in interval between the interior electrode pattern exit pattern 28 of the interior electrode pattern 16 of first group of coil 10 and second group of coil 20 makes it isolated mutually, as shown in Figure 4.Therefore, as shown in Figure 3, two insulating barriers 34 and 35 at interval between the interior electrode pattern 14 and 16 of first group of coil 10, and, the also interior electrode pattern 26 of second group of coil 20 at interval therebetween.And the projection of the interior electrode pattern 14 of first group of coil 10 and 16 on the direction of axes O overlap mutually, promptly overlaps in the end.As shown in Figure 3, can be by offering through hole in the position of dielectric layers 34,35 correspondences, in through hole, fill then with conductor 50, make adjacent two interior electrode patterns 14 and 16 of first group of coil 10 cross dielectric layers 34,35 and realize being electrically connected mutually.Therefore, in fact, the interior electrode pattern 14 relative two ends of first group of coil 10 are electrically connected mutually with the exit pattern 12 and the interior electrode pattern 16 of first group of coil 10 respectively.
Two insulating barriers 33 and 34 at interval between the interior electrode pattern 24,26 of second group of coil 20, and their projections on the direction of axes O overlap mutually, promptly overlap in the end.As shown in Figure 4, can be by offering through hole in the position of dielectric layers 33,34 correspondences, in through hole, fill then with conductor 50, make adjacent two interior electrode patterns 24 and 26 of second group of coil 20 cross dielectric layers 33,34 and realize being electrically connected mutually.Therefore, in fact, the interior electrode pattern 24 relative two ends of second group of coil 20 are electrically connected mutually with the exit pattern 22 and the interior electrode pattern 26 of second group of coil 20 respectively.
Then, two insulating barriers 36 and 37 at interval between the interior electrode pattern 16 of first group of coil 10 and the exit pattern 18, and their projections on the direction of axes O overlap mutually, promptly overlap in the end.As shown in Figure 3, can in through hole, fill then, make the interior electrode pattern 16 of first group of coil 10 and exit pattern 18 cross dielectric layers 36,37 realizations electrical connection mutually by offering through hole in the position of dielectric layers 36,37 correspondences with conductor 50.Therefore, in fact, the interior electrode pattern 16 relative two ends of first group of coil 10 are electrically connected mutually with the interior electrode pattern 14 and the exit pattern 18 of first group of coil 10 respectively.
Two insulating barriers 35 and 36 at interval between the interior electrode pattern 26 of second group of coil 20 and the exit pattern 28, and their projections on the direction of axes O overlap mutually, promptly overlap in the end.As shown in Figure 4, can in through hole, fill then, make the interior electrode pattern 26 of second group of coil 20 and exit pattern 28 cross dielectric layers 35,36 realizations electrical connection mutually by offering through hole in the position of dielectric layers 35,36 correspondences with conductor 50.Therefore, in fact, the interior electrode pattern 26 relative two ends of second group of coil 20 are electrically connected mutually with the interior electrode pattern 24 and the exit pattern 28 of second group of coil 20 respectively.
In Fig. 1,3 and 4, as previously mentioned, two interior electrode patterns 14,16 of first group of coil 10 constitute a coil unit that belongs to first group of coil 10.Similarly, the interior electrode pattern 24,26 of second group of coil 20 also constitutes a coil unit that belongs to second group of coil 20.Therefore, can be regarded as, two interior electrode patterns 14,16 of first group of coil 10 and the interior electrode pattern of second group of coil 20 24,26 constitute two groups of coils 10,20 mutually nested, one-period unit at interval alternates.Only comprising shown in Fig. 3 and 4 is understandable that the one-period unit that in the application of reality, this periodically can repeat repeatedly the unit, and the concrete number of times that repeats can decide according to the actual needs.In addition, lamination sheet type coil integration member can further comprise one or two thicker dielectric base 39, it can be in close proximity to the superiors and/or undermost electrode pattern, for example is in close proximity to the exit pattern 18 of first group of coil 10 and/or is in close proximity to the exit pattern 22 of second group of coil 20.
In addition, the coil integration member shown in Fig. 1-4 is the loop construction that comprises that two groups of projections overlap substantially fully, is understandable that, lamination sheet type coil integration member can also be the loop construction that comprises that two groups but projection not exclusively overlap.For example, some coincidence of projection of two groups of coils of lamination sheet type coil integration member, another part does not overlap.When carrying out product structure design, for reducing by two groups of couplings between the coil, when reducing to overlap area.
Lamination sheet type coil integration member can also be to comprise three groups and three groups of above loop constructions.For example, when lamination sheet type coil integration member comprises three groups of coils, with the one-period unit is example, in each periodicity unit, each group all comprises three layer patterns that can constitute a sealing ring or ring when being projected in same plane, three layer patterns in every group are embedded in other each layer patterns of two groups mutually, are separated with an insulating barrier between two adjacent arbitrarily patterned layer.And the like, can construct the laminated chip inductor of three groups of above coils as required.
See also Fig. 5 and 6, appearance structure schematic diagram during for the application of the coil integration member among the utility model embodiment 100.In each layer of coil integration member 100 is sealed in by insulating material, be provided with two pairs of termination electrodes 41,42 corresponding to the position of the exit pattern 22,28 of 12,18 and second groups of coils 20 of exit pattern of first group of coil 10 at the outer surface of insulating material.Insulating material is pottery, ferrite or other medium etc., and in the structure of practical application, above-mentioned each insulating barrier also can adopt this material, and can become one structure, and is the equal of that each layer electrode pattern of coil integration member 100 is embedded in the insulating material.By this clad structure of insulating material such as pottery, it is big to make coil integration member 100 have intensity, loosening, and advantage such as can not break.
In the structure shown in Fig. 1,3 and 4, adjacent interior electrode pattern in each group coil, for example interior electrode pattern 14,16 makes its electrical connection by bindiny mechanism's mode of filling conductor 50 in the through hole of crossing dielectric layers 34,35 therebetween.Alternatively, adjacent interior electrode pattern in each group coil, the connection that for example interior electrode pattern is 14,16 can be adopted other bindiny mechanisms, for example pass through the end that the projection of interior electrode pattern 14,16 on the direction of axes O is overlapped to the edge extension, part with this extension is electrically connected then, be the solderless wrapped connection profile that this bindiny mechanism is similar to termination electrode 41,42, perhaps the bindiny mechanism of this extension can be used as the part of corresponding pattern layer.
See also Fig. 7 and 8, be respectively the exit pattern 12 and 18 at first group of coil 10 two ends.Wherein, each exit pattern comprises all that an epitaxy part that is extended down to periphery outward and one are inserted into and prolongs portion in inner, and for example exit pattern 12 comprises epitaxy part 122 and Nei Yan portion 124, and exit pattern 18 comprises epitaxy part 182 and Nei Yan portion 184.Wherein, epitaxy part 122 is connected with termination electrode 41 shown in Fig. 5 or 6 respectively with epitaxy part 182.In practical structures, shown in Fig. 7 and 8, exit pattern 12 and 18 epitaxy part 122 and epitaxy part 182 are positioned at position on the right side equally, and both are positioned at two relative sides of whole integration member, so that two end electrodes 41 can be isolated mutually.
See also Fig. 9 and 10, be respectively electrode pattern 14 and 16 in two kinds of first group of coil 10. Electrode pattern 14 and 16 is respectively complementary half circle or half annulus in two kinds, and adopts distribution form up and down.Should be noted in the discussion above that only be the relative position that adopts for sake of convenience with reference to diagram up and down among the embodiment, do not have the absolute orientation of this kind in the actual application.
Seeing also Figure 11 and 12, is respectively the exit pattern 22 and 28 at second group of coil 20 two ends.Similar with exit pattern 12 and 18, exit pattern 22 comprises epitaxy part 222 and Nei Yan portion 224, and exit pattern 28 comprises epitaxy part 282 and Nei Yan portion 284.In practical structures, shown in Figure 11 and 12, exit pattern 22 and 28 epitaxy part 222 and epitaxy part 282 are positioned at the side position that keeps left, and both are positioned at two relative sides of whole integration member equally, so that two end electrodes 42 can be isolated mutually.
See also Figure 13 and 14, be respectively electrode pattern 24 and 26 in two kinds of second group of coil 20. Electrode pattern 24 and 26 is respectively complementary half circle or half annulus in two kinds, and adopts left and right sides distribution form.
See also Figure 15, be the structural representation of insulating barrier 31 or 35.Correspondence offers through hole 312,314 and 352,354 on the insulating barrier 31 or 35.Among Figure 15 and the subsequent figures 16-18 through hole shown in the dotted line actual be non-existent, just to the relative position of explanation through hole 312,314 and 352,354 on insulating barrier 31 or 35 separately.
See also Figure 16, be the structural representation of insulating barrier 32 or 36.Correspondence offers through hole 322,324 and 362,364 on the insulating barrier 32 or 36.See also Figure 17, be the structural representation of insulating barrier 33 or 37.Correspondence offers through hole 332,334 and 372,374 on the insulating barrier 33 or 37.See also Figure 18, be the structural representation of insulating barrier 34.Insulating barrier 34 offers through hole 342,344.
Being distributed as can be known by the through hole of Figure 15-18, is the equal of that two through holes on each insulating barrier are the path with four through holes from insulating barrier 31 lead to the hole site to the insulating barrier 32,33,34,35,36,37 successively, passes in the counterclockwise direction successively and gets.For example, from insulating barrier 31 to insulating barrier 32, can regard that through hole 312 moves forward to dotted line lead to the hole site adjacent among Figure 15 counterclockwise as, be through hole 324 positions of insulating barrier 32 among Figure 16, and through hole 314 moves forward to through hole 312 positions among Figure 15 counterclockwise, is through hole 322 positions of insulating barrier 32 among Figure 16.Enclose through two altogether from insulating barrier 31 to 37.In other words, two adjacent insulating barriers, for example insulating barrier 31,32 has the orthographic projection overlaid of two through holes, and with the conductor of adjacent two electrode pattern layer (as 22,24) in same group of coil of ccontaining connection, this orthographic projection can be to throw in the projection that is parallel on the plane of arbitrary insulating barrier.And the orthographic projection of in addition two through holes in adjacent two insulating barriers (as 31,32) is separately, the orthographic projection of eight through holes in adjacent four insulating barriers (as 31,32,33,34) distributions that assume diamond in shape, and be two overlapping rhombuses distributions.
When lamination sheet type coil integration member comprises coil more than three groups or three groups, adjacent electrode pattern layer in same group of coil is insulating barrier more than three layers or three layers at interval, each insulating barrier is formed with the through hole more than three or three, adjacent insulating barrier has at least one through hole orthographic projection overlaid of (as more than three or three) respectively, with the conductor of adjacent two electrode pattern layer in same group of coil of ccontaining connection, and the orthographic projection of at least three through holes in the adjacent insulating barrier separately.A plurality of electrode pattern layer in same group of coil are electrically connected into a single integrated structure mutually.
Lamination sheet type coil integration member among the utility model embodiment can adopt wet method, dry method, dried wet processing to make, and for example comprises steps such as baking, printing, etching.Can suitably carry out the pressing step in lamination process, each pattern all can adopt method of printing to form, and through hole can adopt punching mode or engraving method to form.Certainly, pattern also can adopt etching or exposure imaging method to form.
In addition, this coil integration member is an absolute construction, so mechanical performance and reliability are better than inductor or its integration member of copper cash coiling in the past.In the practical application, this coil integration member can be used for common-mode signal inhibition, conversion of signals, voltage transformation, and is applied in the devices such as the winding of inductor, capacitor, transformer and LC filtering.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. lamination sheet type coil integration member, comprise at least two group coils and a plurality of insulating barrier, it is characterized in that, every group of coil comprises the multi-layered electrode pattern that helical form is joined layer by layer, belong to not the electrode pattern layer phase embedding intersecting in the coil on the same group, described a plurality of insulating barriers belong in the same group of coil adjacent electrode pattern layer and cross therebetween insulating barrier and be electrically connected at interval in belonging to not coil on the same group between the adjacent electrode pattern layer.
2. lamination sheet type coil integration member as claimed in claim 1, it is characterized in that, belong to not the electrode pattern layer phase embedding intersecting periodically in the coil on the same group, in each periodicity unit, each pattern number of plies of organizing coil is at least the group number of coil, in each periodicity unit, the electrode pattern layer that belongs to same group of coil is electrically connected and is connected into a coil unit.
3. lamination sheet type coil integration member as claimed in claim 2, it is characterized in that, at each periodically in unit, the central shaft that belongs to the electrode pattern layer coiling of the same group of coil back that rotates to an angle is all overlapping or overlap along the projection of central axis direction.
4. lamination sheet type coil integration member as claimed in claim 1 is characterized in that, every group of coil comprises the exit pattern of being located at two ends respectively, and the exit pattern that belongs to different coils that is positioned at same end is isolated mutually.
5. lamination sheet type coil integration member as claimed in claim 1 is characterized in that, adjacent electrode pattern layer is crossed therebetween insulating barrier by electrical connecting element and is electrically connected mutually insulated interval between each electrical connecting element in every group of coil.
6. lamination sheet type coil integration member as claimed in claim 5, it is characterized in that, insulating barrier in every group of coil between the adjacent electrode pattern layer offers through hole, and described electrical connecting element is to be arranged to be electrically connected the conductor of respectively organizing electrode pattern layer adjacent in the coil in the through hole.
7. lamination sheet type coil integration member as claimed in claim 4 is characterized in that, the exit pattern at every group of coil two ends is corresponding to be electrically connected with two termination electrodes.
8. lamination sheet type coil integration member as claimed in claim 2, it is characterized in that, described integration member comprises two groups of coils and a plurality of insulating barrier, an electrode pattern layer of two insulating barriers and another group coil between described two insulating barriers at interval between adjacent two electrode pattern layer in every group of coil, described two insulating barriers correspondence respectively are formed with through hole, are equipped with the conductor that is electrically connected adjacent two electrode pattern layer in two corresponding through holes.
9. lamination sheet type coil integration member as claimed in claim 8, it is characterized in that, each insulating barrier is formed with two or more through holes, two adjacent insulating barriers have the orthographic projection overlaid of at least one through hole respectively, with the conductor of adjacent two electrode pattern layer in same group of coil of ccontaining connection, and the orthographic projection of at least two through holes in two adjacent insulating barriers separately.
10. lamination sheet type coil integration member as claimed in claim 1 is characterized in that, described a plurality of electrode pattern layer interconnect into a single integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202130156U CN201307489Y (en) | 2008-10-28 | 2008-10-28 | Multi-layer chip coil integrated piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202130156U CN201307489Y (en) | 2008-10-28 | 2008-10-28 | Multi-layer chip coil integrated piece |
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| Publication Number | Publication Date |
|---|---|
| CN201307489Y true CN201307489Y (en) | 2009-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008202130156U Expired - Lifetime CN201307489Y (en) | 2008-10-28 | 2008-10-28 | Multi-layer chip coil integrated piece |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568770A (en) * | 2010-12-08 | 2012-07-11 | 上海华虹Nec电子有限公司 | Laminated structure of radio frequency transformer |
| CN105895332A (en) * | 2016-04-01 | 2016-08-24 | 臻绚电子科技(上海)有限公司 | Coil, induction device and method for preparing coil applied to induction device |
| CN110308672A (en) * | 2019-07-30 | 2019-10-08 | Oppo广东移动通信有限公司 | Electronic equipment, display panel and its sounding device |
| WO2020134000A1 (en) * | 2018-12-27 | 2020-07-02 | 安徽安努奇科技有限公司 | Resonant circuit and filter |
| WO2023122953A1 (en) * | 2021-12-28 | 2023-07-06 | 深圳顺络电子股份有限公司 | Vertical multiphase inductor and manufacturing method therefor |
-
2008
- 2008-10-28 CN CNU2008202130156U patent/CN201307489Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568770A (en) * | 2010-12-08 | 2012-07-11 | 上海华虹Nec电子有限公司 | Laminated structure of radio frequency transformer |
| CN105895332A (en) * | 2016-04-01 | 2016-08-24 | 臻绚电子科技(上海)有限公司 | Coil, induction device and method for preparing coil applied to induction device |
| WO2020134000A1 (en) * | 2018-12-27 | 2020-07-02 | 安徽安努奇科技有限公司 | Resonant circuit and filter |
| CN110308672A (en) * | 2019-07-30 | 2019-10-08 | Oppo广东移动通信有限公司 | Electronic equipment, display panel and its sounding device |
| WO2023122953A1 (en) * | 2021-12-28 | 2023-07-06 | 深圳顺络电子股份有限公司 | Vertical multiphase inductor and manufacturing method therefor |
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