Inductive device
By placing inductors in the empty areas of electronic devices, the first and second traces do not overlap, thus solving the problem of empty areas caused by the shape of the inductor, increasing the inductance value, and promoting the miniaturization and thinning of electronic devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- REALTEK SEMICON CORP
- Filing Date
- 2021-11-16
- Publication Date
- 2026-05-12
AI Technical Summary
The shape of inductors results in unused empty areas, hindering the miniaturization and thinning of electronic devices.
By configuring an inductor in an empty area of the electronic device, the first trace and the second trace are located in different areas, and the second area is set outside the first area without overlapping, thereby increasing the inductance value.
By effectively utilizing unused areas, the overall inductance of the device is increased, promoting the miniaturization and thinning of electronic devices.
Smart Images
Figure CN116137198B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to an electronic device, and more particularly to an inductor device. Background Technology
[0002] To adapt to the needs of different usage scenarios, inductors are designed in different shapes. With the advancement of technology, electronic devices are gradually developing towards being thinner and smaller. However, the shape of the inductor creates unused empty areas around it, which is very detrimental to the thinning and miniaturization of electronic devices. Summary of the Invention
[0003] This invention relates to an inductor. An electronic device is disposed in a first region within the inductor, and the inductor includes a first trace and a second trace. The first trace is disposed in a second region. The second trace is disposed in the second region and coupled to the first trace. The second region is disposed around the periphery of the first region, and the first region and the second region do not overlap.
[0004] Therefore, according to the technical content of the present invention, the inductor device shown in the embodiments of the present invention can effectively utilize vacant blocks to configure the inductor device, thereby improving the overall inductance value of the device. Attached Figure Description
[0005] To make the above and other objects, features, advantages and embodiments of the present invention more apparent and understandable, the accompanying drawings are described below:
[0006] Figure 1 This is a schematic diagram illustrating an inductor and an electronic device according to an embodiment of the present invention;
[0007] Figure 2 As shown in an embodiment of the present invention, such as Figure 1 A schematic diagram of the inductor shown;
[0008] Figure 3 As shown in an embodiment of the present invention, such as Figure 2 The diagram shows a partial structural schematic of the inductor device.
[0009] Figure 4 As shown in an embodiment of the present invention, such as Figure 2 The diagram shows a partial structural schematic of the inductor device.
[0010] Figure 5 This is a schematic diagram of experimental data for an inductor device according to an embodiment of the present invention.
[0011] As is customary practice, the various features and elements in the accompanying drawings are not drawn to scale. The purpose of this drawing is to present the specific features and elements related to the invention in the best possible manner. Furthermore, similar elements / components are referred to by the same or similar element symbols across different drawings.
[0012] 1000: Inductor
[0013] 1100, 1100A, 1100B: First trace; 1110, 1110A, 1110B: First coil
[0014] 1120, 1120A, 1120B: First coil; 1150, 1150A, 1150B: First jumper.
[0015] 1200: Second trace; 1210: Second coil; 1220: Second coil
[0016] 1250: Third jumper; 1300: Third trace; 1310: Third coil
[0017] 1320: Third coil; 1350: Second jumper; 1400: Fourth trace.
[0018] 1410: Fourth coil; 1420: Fourth coil; 1450: Fourth jumper
[0019] 1510: First connector; 1520, 1520A, 1520B: Second connector
[0020] 1530: Third connector; 1610: First input / output component; 1620: Second input / output component
[0021] 5000: Electronic device; 6000: Zone 1; 7000: Zone 2
[0022] 7100, 7200, 7300, 7400: Subregions C1, L1: Experimental curves
[0023] Explanation of reference numerals in the attached figures: Detailed Implementation
[0024] To make the description of the present invention more detailed and complete, the following is an illustrative description of the embodiments and specific examples of the present invention; however, this is not the only form of implementing or using the specific examples of the present invention. The embodiments cover the features of multiple specific examples, as well as the methods, steps, and sequences for constructing and operating these specific examples. However, other specific examples may also be used to achieve the same or equivalent functions and sequence of steps.
[0025] 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. Furthermore, unless conflicting with the context, singular nouns used herein include their plural forms, and vice versa.
[0026] Figure 1 This is a schematic diagram illustrating an inductor 1000 and an electronic device 5000 according to an embodiment of the present invention. As shown, the electronic device 5000 is disposed within a first region 6000 of the inductor 1000. In one embodiment, the electronic device 5000 may be, for example, another inductor or a balun, but the invention is not limited thereto.
[0027] In order to make Figure 1 The inductor device 1000 shown is easy to understand; please refer to it as well. Figure 2 , Figure 2 As shown in an embodiment of the present invention, such as Figure 1 The diagram shows an inductor 1000. As shown, the inductor 1000 includes a first trace 1100 and a second trace 1200. The first trace 1100 is disposed in a second region 7000. The second trace 1200 is disposed in the second region 7000 and coupled to the first trace 1100. The second region 7000 is located outside the first region 6000, and the first region 6000 and the second region 7000 do not overlap.
[0028] In this way, the inductor 1000 of the present invention can be disposed in an empty area (such as the second area 7000) around the electronic device 5000, thereby effectively utilizing the empty area and increasing the overall inductance value of the device.
[0029] In one embodiment, the first trace 1100 includes a plurality of first coils (such as first coil 1110 and first coil 1120), and the second trace 1200 includes a plurality of second coils (such as second coil 1210 and second coil 1220). For example, to further increase the inductance value, the first trace 1100 is wound into a plurality of first coils (such as first coil 1110 and first coil 1120) at the upper left corner of the figure, and similarly, the second trace 1200 is wound into a plurality of second coils (such as second coil 1210 and second coil 1220) at the upper right corner of the figure. In addition, the first coils (such as first coil 1110 and first coil 1120) may be disposed in a sub-region 7100 of the second region 7000, and the second coils (such as second coil 1210 and second coil 1220) may be disposed in a sub-region 7200 of the second region 7000.
[0030] In one embodiment, the outermost first coil 1110 of the first coil (e.g., first coil 1110, first coil 1120) is coupled to the outermost second coil 1210 of the second coil (e.g., second coil 1210, second coil 1220). In another embodiment, the inductor device 1000 further includes a first connector 1510 for connecting the outermost first coil 1110 of the first coil (e.g., first coil 1110, first coil 1120) to the outermost second coil 1210 of the second coil (e.g., second coil 1210, second coil 1220). In one embodiment, the first connector 1510 may serve as a central tap.
[0031] In one embodiment, the inductor device 1000 further includes a third trace 1300 and a fourth trace 1400. Both the third trace 1300 and the fourth trace 1400 are disposed in the second region 7000. In another embodiment, the third trace 1300 includes a plurality of third coils (e.g., third coil 1310, third coil 1320), and the fourth trace 1400 includes a plurality of fourth coils (e.g., fourth coil 1410, fourth coil 1420). For example, to further increase the inductance value, the third trace 1300 is wound into a plurality of third coils (e.g., third coil 1310, third coil 1320) at the lower left corner of the figure; similarly, the fourth trace 1400 is wound into a plurality of fourth coils (e.g., fourth coil 1410, fourth coil 1420) at the lower right corner of the figure. In addition, a third coil (such as third coil 1310 or third coil 1320) may be located in a sub-region 7300 of the second region 7000, and a fourth coil (such as fourth coil 1410 or fourth coil 1420) may be located in a sub-region 7400 of the second region 7000.
[0032] In one embodiment, the inductor 1000 further includes a first jumper 1150 and a second jumper 1350. The first jumper 1150 is used to connect the innermost first coil 1120 among the first coils (such as first coil 1110, first coil 1120). The second jumper 1350 is coupled to the first jumper 1150 and is used to connect the innermost third coil 1320 among the third coils (such as third coil 1310, third coil 1320). In another embodiment, the inductor 1000 further includes a second connector 1520 for connecting the first jumper 1150 and the second jumper 1350.
[0033] In one embodiment, the inductor 1000 further includes a first input / output element 1610 coupled to the outermost third coil 1310 of the third coil (such as third coil 1310, third coil 1320).
[0034] In one embodiment, the first trace 1100, the second trace 1200, the third trace 1300, the fourth trace 1400, the second connector 1520, and the first input / output component 1610 are located on a first layer, and the first connector 1510, the first jumper 1150, and the second jumper 1350 are located on a second layer. For example, the first layer is an Ultra Thick Metal (UTM) layer, and the second layer is a Redistribution Layer (RDL).
[0035] In one embodiment, the inductor 1000 further includes a third jumper 1250 and a fourth jumper 1450. The third jumper 1250 is used to connect the innermost second coil 1220 among the second coils (such as second coil 1210 and second coil 1220). The fourth jumper 1450 is coupled to the third jumper 1250 and is used to connect the innermost fourth coil 1420 among the fourth coils (such as fourth coil 140 and fourth coil 1420). In another embodiment, the inductor 1000 further includes a third connector 1530 for connecting the third jumper 1250 and the fourth jumper 1450.
[0036] In one embodiment, the inductor 1000 further includes a second input / output element 1620 coupled to the outermost fourth coil 1410 of the fourth coil (such as fourth coil 140, fourth coil 1420).
[0037] In one embodiment, the third connector 1530 and the second input / output component 1620 are located on the first layer, and the third jumper 1250 and the fourth jumper 1450 are located on the second layer. For example, the first layer is an ultra-thick metal layer (UTM), and the second layer is a redistribution layer (RDL).
[0038] like Figure 1 As shown, the electronic device 5000 can be shaped like a figure eight, therefore, the first region 6000 where the electronic device 5000 is located is also shaped like a figure eight. Since the first region 6000 is shaped like a figure eight, the second region 7000 surrounding the figure eight is triangular in shape. The inductor 1000 of the present invention can be disposed in these triangular regions to increase the inductance value. Specifically, the multiple sub-regions 7100, 7200, 7300, and 7400 of the second region 7000 are triangular in shape, and the sub-regions 7100, 7200, 7300, and 7400 are located at the upper left, upper right, lower left, and lower right corners of the inductor 1000, respectively. However, the present invention does not... Figure 1 and Figure 2The embodiments shown are limited to those described above. Those skilled in the art may also use a rhomboid or other suitable shape for the electronic device 5000, with the inductor 1000 disposed around it, depending on the actual needs.
[0039] Figure 3 As shown in an embodiment of the present invention, such as Figure 2 The diagram shows a partial structural schematic of the inductor device 1000. As shown in the figure, it is presented here as... Figure 2 The upper left corner structure of the inductor device 1000 includes a first coil (e.g., first coil 1110A, first coil 1120A) and a first bridging member 1150A. As shown in the figure, the winding direction of the first coils (e.g., first coil 1110A, first coil 1120A) is counterclockwise. Similarly, in... Figure 2 In the inductor device 1000, the winding direction of the second coil (e.g., second coil 1210, second coil 1220), the third coil (e.g., third coil 1310, third coil 1320), and the fourth coil (e.g., fourth coil 1410, fourth coil 1420) can also be counterclockwise. It should be noted that in... Figure 3 In the embodiments, the component labels are similar to Figure 1 and Figure 2 The components labeled in the document have similar structural features, and for the sake of brevity, they will not be described in detail. Furthermore, this invention does not... Figure 3 The structure shown is limited and is only used to illustrate one implementation of the invention.
[0040] Figure 4 As shown in an embodiment of the present invention, such as Figure 2 The diagram shows a partial structural schematic of the inductor device 1000. As shown in the figure, it is presented here as... Figure 2 The upper left corner section of the inductor device 1000 is shown in the figure. This upper left corner section includes a first coil (e.g., first coil 1110B, first coil 1120B) and a first bridging member 1150B. As can be seen from the figure, the winding direction of the first coils (e.g., first coil 1110B, first coil 1120B) is clockwise. Similarly, in... Figure 2 In the inductor device 1000, the winding direction of the second coil (e.g., second coil 1210, second coil 1220), the third coil (e.g., third coil 1310, third coil 1320), and the fourth coil (e.g., fourth coil 1410, fourth coil 1420) can also be clockwise. It should be noted that in... Figure 4 In the embodiments, the component labels are similar to Figure 1 and Figure 2 The components labeled in the document have similar structural features, and for the sake of brevity, they will not be described in detail. Furthermore, this invention does not... Figure 4The structure shown is limited and is only used to illustrate one implementation of the invention.
[0041] Figure 5 This is a schematic diagram illustrating experimental data for an inductor device 1000 according to an embodiment of the present invention. Using the architecture configuration of the present invention, the experimental curve for its inductance value is L1, and the experimental curve for its quality factor is C1. As shown in the figure, the inductor device 1000 using the architecture of the present invention can provide additional inductance value, thereby improving the overall inductance value of the device. For example, at a frequency of 2.4 GHz, the inductance value of this inductor device 1000 is approximately 2.5 nH (Nehron). However, the present invention does not... Figure 5 The embodiments shown are limited and are only used to illustrate one implementation of the present invention.
[0042] Although specific embodiments of the present invention have been disclosed in the foregoing embodiments, they are not intended to limit the present invention. Those skilled in the art can make various modifications and alterations to the present invention without departing from the principles and spirit of the present invention. Therefore, the scope of protection of the present invention should be defined by the claims of the present invention.
Claims
1. An inductor device, characterized in that, An electronic device is disposed in a first region within the inductor, and the inductor includes: A first trace, configured in a second region, the first trace comprising a plurality of first coils; and A second trace is configured in the second region and coupled to the first trace, wherein the second region is located on the periphery of the first region and the first region and the second region do not overlap; A third trace, disposed in the second region and coupled to the first trace, the third trace including a plurality of third coils; and A fourth trace is configured in the second region and coupled to the second trace; A first jumper is used to connect the innermost first coil among the plurality of first coils; A second jumper, coupled to the first jumper, is used to connect the innermost third coil among the plurality of third coils; and A second connector for connecting the first jumper and the second jumper; The first trace, the second trace, the third trace, and the fourth trace are located in a first layer, which is an ultra-thick metal layer.
2. The inductor device according to claim 1, characterized in that, The second trace includes a plurality of second coils, wherein the outermost first coil of the plurality of first coils is coupled to the outermost second coil of the second coils.
3. The inductor device according to claim 2, characterized in that, Also includes: A first connector is used to connect the outermost first coil among the plurality of first coils to the outermost second coil among the plurality of second coils.
4. The inductor device according to claim 1, characterized in that, The fourth trace includes multiple fourth coils.
5. The inductor device according to claim 4, characterized in that, Also includes: A first input / output device is coupled to the outermost third coil among the plurality of third coils, and the first jumper and the second jumper are located in a second layer.
6. The inductor device according to claim 5, characterized in that, Also includes: A third jumper is used to connect the innermost second coil among a plurality of second coils; A fourth jumper, coupled to the third jumper, is used to connect the innermost fourth coil among the plurality of fourth coils; and A third connector is used to connect the third jumper and the fourth jumper.
7. The inductor device according to claim 6, characterized in that, Also includes: A second input / output device is coupled to the outermost fourth coil among the plurality of fourth coils, wherein the third jumper and the fourth jumper are located in the second layer.
8. The inductor device according to any one of claims 1 to 7, characterized in that, The first region has a figure-eight shape, while the second region has a triangle shape.
9. The inductor device according to any one of claims 1 to 7, characterized in that, The second region includes multiple sub-regions, and the multiple sub-regions are located at multiple corners of the inductor.