Inductive device

Abstract

An inductive device includes a first coil and a second coil. The first coil includes a first sub-coil and a second sub-coil. The first sub-coil is disposed in a first region. The second sub-coil is disposed in a second region and is in a different layer than the first sub-coil. The second coil includes a third sub-coil and a fourth sub-coil. The third sub-coil is disposed in the second region and is below the second sub-coil. The fourth sub-coil is disposed in the first region and is in a different layer than the third sub-coil and is above the first sub-coil.

Description

Technical Field

[0001] This application relates to an electronic device, and more particularly to an inductive device. Background Technology

[0002] Figure-eight inductors can effectively reduce signal interference between coils; however, they occupy a large area, which is not conducive to the miniaturization and thinning of electronic devices.

[0003] It is clear that the existing methods described above still have inconveniences and shortcomings, and need to be improved. To address these problems, relevant fields have racked their brains to find solutions, but no suitable solution has yet been proposed. Summary of the Invention

[0004] The first aspect of this application relates to an inductor device comprising a first coil and a second coil. The first coil includes a first sub-coil and a second sub-coil. The first sub-coil is disposed in a first region. The second sub-coil is disposed in a second region and is located on a different layer than the first sub-coil. The second coil includes a third sub-coil and a fourth sub-coil. The third sub-coil is disposed in the second region and is located below the second sub-coil. The fourth sub-coil is disposed in the first region, is located on a different layer than the third sub-coil, and is located above the first sub-coil.

[0005] Therefore, according to the technical content of this application, the inductor device shown in the embodiments of this application adopts a stacked configuration. Compared with the inductor device that does not adopt a stacked configuration, the inductor device of this application can effectively reduce the area. Attached Figure Description

[0006] To make the above and other objects, features, advantages and embodiments of this disclosure more apparent and understandable, the accompanying drawings are described below:

[0007] Figure 1 This is a schematic diagram of an inductor device provided according to some embodiments of the present disclosure.

[0008] Figure 2 It is a kind of embodiment provided according to some embodiments of this disclosure. Figure 1 The diagram shows a partial structural schematic of the inductor device.

[0009] Figure 3 It is a kind of embodiment provided according to some embodiments of this disclosure. Figure 1 The diagram shows a partial structural schematic of the inductor device.

[0010] Figure 4This is a schematic diagram of experimental data for an inductor device provided according to some embodiments of this disclosure. In accordance with conventional practice, the various features and components in the figures are not drawn to scale; they are drawn in a manner intended to best represent the specific features and components related to this disclosure. Furthermore, similar or identical component symbols are used to indicate similar components / parts across different figures. Detailed Implementation

[0011] To make the description of this disclosure more detailed and complete, illustrative descriptions of implementation aspects and specific embodiments of this application are provided below; however, this is not the only form of implementing or utilizing the specific embodiments of this application. The implementation covers features of multiple specific embodiments and method steps and their order for constructing and operating these specific embodiments. However, other specific embodiments may also be used to achieve the same or equivalent functions and sequence of steps.

[0012] Unless otherwise defined in this specification, the scientific and technical terms used herein have the same meaning as understood and commonly used by one of ordinary skill in the art to which this application pertains. Furthermore, unless conflicting with the context, the singular form of a noun used herein includes its plural form, and vice versa.

[0013] In addition, the term "coupling" as used in this article can refer to two or more components making direct physical or electrical contact with each other, or making indirect physical or electrical contact with each other, or it can refer to two or more components operating or acting on each other.

[0014] Figure 1 This is a schematic diagram of an inductor device 1000 provided according to some embodiments of the present disclosure. As shown, the inductor device 1000 includes a first coil 1100 and a second coil 1200. The first coil 1100 includes a first sub-coil 1110 and a second sub-coil 1120. Furthermore, the second coil 1200 includes a third sub-coil 1210 and a fourth sub-coil 1220.

[0015] To make the structure of the inductor device 1000 of this application easy to understand, it will be described here. Figure 1 The inductor device 1000 shown is disassembled as follows: Figure 2 and Figure 3 , Figure 2 and Figure 3 These are examples provided according to certain embodiments of this disclosure. Figure 1 The diagram shows a partial structural schematic of the inductor device 1000.

[0016] Please see Figure 2 The first sub-coil 1110 is located in the first region 2000 (the upper half of the region in the figure), and the third sub-coil 1210 is located in the second region 3000 (the lower half of the region in the figure).

[0017] In some embodiments, the first sub-coil 1110 is wound (or twisted) in a first direction, and the third sub-coil 1210 is wound in a second direction. The first direction is opposite to the second direction. For example, the first direction includes a counterclockwise direction, while the second direction includes a clockwise direction.

[0018] In other embodiments, the inductor 1000 further includes a first input / output element 1300 coupled to the inner coil of a first sub-coil 1110. For example, the first input / output element 1300 may be coupled to the inner coil of the first sub-coil 1110 via a via 1310. Furthermore, the inductor 1000 also includes a third input / output element 1500 coupled to the inner coil of a third sub-coil 1210. For example, the third input / output element 1500 may be coupled to the inner coil of the third sub-coil 1210 via a via 1510.

[0019] Please see Figure 3 The fourth sub-coil 1220 is located in the first region 2000 (the upper half of the region in the figure), and the second sub-coil 1120 is located in the second region 3000 (the lower half of the region in the figure).

[0020] In some embodiments, the fourth sub-coil 1220 is wound along a first direction, and the second sub-coil 1120 is wound along a second direction. The first direction is opposite to the second direction. For example, the first direction includes a counterclockwise direction, while the second direction includes a clockwise direction.

[0021] In other embodiments, the inductor 1000 further includes a fourth input / output element 1600 coupled to the inner coil of the fourth sub-coil 1220. For example, the fourth input / output element 1600 may be coupled to the inner coil of the fourth sub-coil 1220 via a connecting post 1610. Furthermore, the inductor 1000 also includes a second input / output element 1400 coupled to the inner coil of the second sub-coil 1120. For example, the second input / output element 1400 may be coupled to the inner coil of the second sub-coil 1120 via a connecting post 1410.

[0022] Please see Figure 3 The inductor device 1000 further includes a first connector 1700 for coupling the second sub-coil 1120 and... Figure 2 The first sub-coil is 1110. For example, Figure 3 The first connector 1700 can be coupled to the second sub-coil 1120 via the second connecting post 1720. Furthermore, Figure 3 The first connector 1700 can be coupled to the first connecting post 1710 via the first connecting post 1710. Figure 2The first sub-coil is 1110.

[0023] Please see Figure 2 The inductor 1000 further includes a second connector 1800 for coupling the third sub-coil 1210 to... Figure 3 The fourth sub-coil is 1220. For example, Figure 2 The second connector 1800 can be coupled to the third sub-coil 1210 via the third connecting post 1810. Furthermore, Figure 2 The second connector 1800 can be coupled to the fourth connecting post 1820 via Figure 3 The fourth sub-coil 1220.

[0024] Please see Figure 2 The first sub-coil 1110 and the third sub-coil 1210 are located in the first layer. Please refer to [link / reference]. Figure 3 The second sub-coil 1120 and the fourth sub-coil 1220 are located on the second layer. Therefore, the first sub-coil 1110 and the second sub-coil 1120 are located on different layers, and the third sub-coil 1210 and the fourth sub-coil 1220 are located on different layers. Please refer to [link / reference]. Figure 1 The first sub-coil 1110 and the fourth sub-coil 1220 are both located in the first region 2000 (the upper half of the region in the figure), with the fourth sub-coil 1220 located above the first sub-coil 1110. Furthermore, the second sub-coil 1120 and the third sub-coil 1210 are both located in the second region 3000 (the lower half of the region in the figure), with the second sub-coil 1120 located above the third sub-coil 1210.

[0025] Because the inductor 1000 of this application adopts a stacked configuration between the first sub-coil 1110 to the fourth sub-coil 1220, the area of ​​the inductor 1000 of this application can be reduced to about 50 micrometers (um) x 70 micrometers (um). Compared with a general inductor without a stacked configuration (area of ​​about 70 micrometers (um) x 78 micrometers (um)), the area of ​​the inductor 1000 of this application is reduced by about 35.9%.

[0026] Furthermore, the first sub-coil 1110 and the fourth sub-coil 1220 are both wound along a first direction, and the second sub-coil 1120 and the third sub-coil 1210 are both wound along a second direction. Based on the fact that the winding directions of the first sub-coil 1110 and the fourth sub-coil 1220 of the inductor device 1000 are opposite to the winding directions of the second sub-coil 1120 and the third sub-coil 1210, signal interference in the inductor device 1000 can be effectively reduced.

[0027] In some embodiments, the first input / output device 1300 overlaps the first sub-coil 1110 and the fourth sub-coil 1220. The fourth input / output device 1600 overlaps the first sub-coil 1110 and the fourth sub-coil 1220. Both the first input / output device 1300 and the fourth input / output device 1600 are located in the first region 2000 (the upper half of the region in the figure), and the first input / output device 1300 and the fourth input / output device 1600 are located on different sides of the first region 2000 (the upper half of the region in the figure) (the left and right sides in the figure).

[0028] In other embodiments, the second input / output element 1400 overlaps the second sub-coil 1120 and the third sub-coil 1210. The third input / output element 1500 overlaps the second sub-coil 1120 and the third sub-coil 1210. Both the second input / output element 1400 and the third input / output element 1500 are located in the second region 3000 (the lower half of the region shown in the figure), and are located on different sides of the second region 3000 (the lower half of the region shown in the figure) (left and right sides, respectively). Furthermore, as shown in the figure, the first connector 1700 and the second connector 1800 are crossed at the center of the inductor 1000. However, this embodiment does not... Figures 1 to 3 The embodiments shown are limited and are merely illustrative of one implementation of this application.

[0029] Figure 4 This is an experimental data graph of an inductor device 1000 provided according to some embodiments of this application. This experimental data graph illustrates the quality factor (Q) and inductance value of the inductor device 1000 at different frequencies. As shown in the figure, curves Q1 and Q2 are the quality factor curves of the first coil 1100 and the second coil 1200 of the inductor device 1000 of this application, respectively. Furthermore, curves L1 and L2 are the inductance value curves of the first coil 1100 and the second coil 1200 of the inductor device 1000 of this application, respectively. Figure 4 Experimental data shows that the inductance values ​​of the first coil 1100 and the second coil 1200 of the inductor device 1000 of this application are very similar. Therefore, it can be seen that the symmetrical structural configuration between the first coil 1100 and the second coil 1200 of the inductor device 1000 of this application can maintain the efficiency of the inductor device 1000.

[0030] As can be seen from the above embodiments of this application, applying this application has the following advantages. The inductor device 1000 shown in the embodiments of this application adopts a stacked configuration, which can effectively reduce the area compared with a general inductor device that does not adopt a stacked configuration. In addition, since the winding directions of the first sub-coil 1110 and the fourth sub-coil 1220 of the inductor device 1000 are opposite to the winding directions of the second sub-coil 1120 and the third sub-coil 1210, signal interference in the inductor device 1000 can be effectively reduced.

[0031] Although the above embodiments disclose specific examples of this application, they are not intended to limit this application. Those skilled in the art to which this application pertains can make various changes and modifications without departing from the principles and spirit of this application. Therefore, the scope of protection of this application shall be determined by the scope defined in the dependent claims.

[0032] Symbol Explanation

[0033] 1000: Inductor

[0034] 1100: First coil

[0035] 1110: First sub-coil

[0036] 1120: Second sub-coil

[0037] 1200: Second coil

[0038] 1210: Third sub-coil

[0039] 1220: Fourth sub-coil

[0040] 1300: First Input / Output Device

[0041] 1310: Connecting column

[0042] 1400: Second Input / Output Device

[0043] 1410: Connecting column

[0044] 1500: Third Input / Output Device

[0045] 1510: Connecting column

[0046] 1600: Fourth Input / Output Device

[0047] 1610: Connecting column

[0048] 1700: First connector

[0049] 1710: First Connecting Pillar

[0050] 1720: Second Connecting Pillar

[0051] 1800: Second connector

[0052] 1810: Third Connecting Pillar

[0053] 1820: Fourth Connecting Pillar

[0054] 2000: Area 1

[0055] 3000: Second Zone

Claims

1. An inductor device, comprising: The first coil includes: The first sub-coil is disposed in the first region; and The second sub-coil is disposed in the second region and is located on a different layer from the first sub-coil; The second coil includes: The third sub-coil is disposed in the second region and located below the second sub-coil; as well as The fourth sub-coil is disposed in the first region and is located on a different layer from the third sub-coil, and is located above the first sub-coil; The first input / output element is coupled to the inner coil of the first sub-coil and overlaps the first sub-coil and the fourth sub-coil; as well as The second input / output element is coupled to the inner coil of the second sub-coil and overlaps the second sub-coil and the third sub-coil.

2. The inductor device of claim 1, wherein the first sub-coil is wound along a first direction and the second sub-coil is wound along a second direction, wherein the first direction is opposite to the second direction, wherein the third sub-coil is wound along the second direction and the fourth sub-coil is wound along the first direction.

3. The inductor device of claim 2, wherein the first sub-coil and the third sub-coil are located in a first layer, and the second sub-coil and the fourth sub-coil are located in a second layer.

4. The inductor device of claim 2, wherein the first direction includes a counterclockwise direction, and wherein the second direction includes a clockwise direction.

5. The inductor device as claimed in claim 1, further comprising: A third input / output element is coupled to the inner coil of the third sub-coil and overlaps the second and third sub-coils; and The fourth input / output element is coupled to the inner coil of the fourth sub-coil and overlaps the first sub-coil and the fourth sub-coil.

6. The inductor device of claim 5, wherein the first input / output element and the fourth input / output element are both located in the first region, wherein the first input / output element and the fourth input / output element are located on different sides of the first region.

7. The inductor device of claim 6, wherein the second input / output element and the third input / output element are both located in the second region, wherein the second input / output element and the third input / output element are located on different sides of the second region.

8. The inductor device of claim 7, further comprising: A first connector is used to couple the first sub-coil to the second sub-coil; A first connecting post is used to couple the first sub-coil to the first connector; and The second connecting post is used to couple the first connector to the second sub-coil.

9. The inductor device of claim 8, further comprising: The second connector is used to couple the third sub-coil to the fourth sub-coil and is interposed with the first connector. A third connecting post is used to couple the third sub-coil to the second connector; and The fourth connecting post is used to couple the second connector to the fourth sub-coil.

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