Inductor Device

Abstract

An inductor device includes a first inductor, a first connector, a second inductor, and a second connector. The first inductor is located in a first layer, and the first inductor includes a first trace and a second trace. The first trace is arranged in a first area, the second trace is arranged in a second area, and the first area and the second area are adjacent to each other at a junction. The first connector is arranged near the junction and in a block where the first trace and the second trace are not arranged, and couples the first trace and the second trace. The second inductor is located in a second layer, and the second inductor includes a third trace and a fourth trace. The third trace is arranged in the first area, and the fourth trace is arranged in the second area. The second connector is arranged near the junction and in a block where the third trace and the fourth trace are not arranged, and couples the third trace and the fourth trace.

Description

Technical Field

[0001] The present invention relates to an electronic device, and more particularly to an inductor device. Background Art

[0002] Various types of existing inductors or transformers have their advantages and disadvantages. For example, an inductor or transformer with a staggered structure has a lower inductance density per unit area. In addition, a stacked type inductor or transformer has a lower quality factor (Q value). Therefore, the application scope of the above inductors or transformers is limited. Summary of the invention

[0003] The embodiments of the present case are about an inductor device, which includes a first inductor, a first connector, a second inductor and a second connector. The first inductor is located in the first layer, and the first inductor includes a first trace and a second trace. The first trace is arranged in the first area, the second trace is arranged in the second area, and the first area and the second area are adjacent to each other at a junction. The first connector is arranged near the junction and in a block where the first trace and the second trace are not arranged, and couples the first trace and the second trace. The second inductor is located in the second layer, and the second inductor includes a third trace and a fourth trace. The third trace is arranged in the first area, and the fourth trace is arranged in the second area. The second connector is arranged near the junction and in a block where the third trace and the fourth trace are not arranged, and couples the third trace and the fourth trace.

[0004] Therefore, according to the technical content of the present case, the inductor device shown in the embodiment of the present case can effectively utilize the vacant blocks to configure the connection structure, thereby simplifying the connection structure and saving the device area. In addition, if two eight-shaped inductors are stacked to form a structure similar to the present case, since each eight-shaped inductor needs to be crossed at the center, more bottom metal layers will be used, thereby reducing the quality factor (Q). If the inductor device of the present case is adopted, it is not necessary to cross at the center, so the quality factor can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] In order to make the above and other purposes, features, advantages and embodiments of the present disclosure more clearly understood, the accompanying drawings are described as follows:

[0006] Figure 1 is a schematic diagram illustrating an inductor device according to an embodiment of the present disclosure.

[0007] Figure 2 According to an embodiment of the present disclosure, a method Figure 1A partial structural schematic diagram of the inductor device shown.

[0008] Figure 3 According to an embodiment of the present disclosure, a method Figure 1 A partial structural schematic diagram of the inductor device shown.

[0009] Figure 4 According to an embodiment of the present disclosure, a method Figure 1 A partial structural schematic diagram of the inductor device shown.

[0010] Figure 5 FIG. 4 is a schematic diagram illustrating experimental data of an inductor device according to an embodiment of the present disclosure.

[0011] According to conventional working methods, various features and components in the figures are not drawn to scale, and the drawing method is to present the specific features and components related to the present disclosure in the best way. In addition, the same or similar component symbols are used to refer to similar components / parts between different figures. DETAILED DESCRIPTION

[0012] In order to make the description of the content of this disclosure more detailed and complete, the following is an illustrative description of the implementation method and specific examples of this case; however, this is not the only form of implementing or using the specific examples of this case. The implementation method covers the features of multiple specific examples and the method steps and their sequences for constructing and operating these specific examples. However, other specific examples can also be used to achieve the same or equal functions and step sequences.

[0013] Unless otherwise defined in this specification, the scientific and technical terms used herein have the same meanings as those understood and used by persons of ordinary skill in the art to which this invention belongs. In addition, singular nouns used in this specification include plural forms of the nouns, and plural nouns used in this specification also include singular forms of the nouns, unless there is a conflict with the context.

[0014] Figure 1 FIG. 1 is a schematic diagram of an inductor device 1000 according to an embodiment of the present disclosure. As shown in the figure, the inductor device 1000 includes a first inductor 1100 , a first connecting member 1200 , a second inductor 1300 and a second connecting member 1400 .

[0015] To make Figure 1 The inductor device 1000 shown is easy to understand. Figure 2 , Figure 3 and Figure 4 . Figure 2 , Figure 3 and Figure 4 Draw separately Figure 1FIG. 1 is a partial structural diagram of an inductor device 1000 .

[0016] See also Figure 1 and Figure 2 , the first inductor 1100 is located in the first layer, and the first inductor 1100 includes a first trace 1110 and a second trace 1120. The first trace 1110 is disposed in the first area 2000, and the second trace 1120 is disposed in the second area 3000. For example, the first trace 1110 is located in the left area in the figure, and the second trace 1120 is located in the right area in the figure.

[0017] In addition, the first area 2000 and the second area 3000 are adjacent to each other at the junction 4000. The first connecting member 1200 is disposed near the junction 4000 and in a block where the first trace 1110 and the second trace 1120 are not disposed, and couples the first trace 1110 and the second trace 1120. For example, the first trace 1110 and the second trace 1120 can both be octagonal traces, so the upper left block 2100, the lower left block 2200, the upper right block 2300, and the lower right block 2400 of the first area 2000 do not have the first trace 1110, in other words, the above blocks are vacant blocks. Similarly, the upper left block 3100, the lower left block 3200, the upper right block 3300, and the lower right block 3400 of the second area 3000 do not have the second trace 1120, and are also vacant blocks. The inductor device 1000 of the present invention can use the above-mentioned vacant block to set the first connecting member 1200 to couple the first trace 1110 and the second trace 1120. Figure 1 and Figure 2 The illustrated embodiment is limited thereto, and the first trace 1110 and the second trace 1120 can be set to other types of traces according to actual needs, such as diamond-shaped traces with vacant blocks around them, so that the first connecting member 1200 can be disposed in the vacant blocks.

[0018] Please also read Figure 1 and Figure 3, the second inductor 1300 is located in the second layer, and the second inductor 1300 includes a third trace 1310 and a fourth trace 1320. The third trace 1310 is disposed in the first area 2000, and the fourth trace 1320 is disposed in the second area 3000. The second connector 1400 is disposed near the junction 4000 and in a block where the third trace 1310 and the fourth trace 1320 are not disposed, and couples the third trace 1310 and the fourth trace 1320. Similarly, the third trace 1310 and the fourth trace 1320 can both be octagonal traces, therefore, the blocks 2100, 2200, 2300, 2400 of the first area 2000 do not have the third trace 1310, in other words, the above blocks are vacant blocks. Similarly, the blocks 3100, 3200, 3300, and 3400 of the second region 3000 do not have the fourth trace 1320 and are also vacant blocks. The inductor device 1000 of the present invention can use the vacant blocks to set the second connector 1400 to couple the third trace 1310 and the fourth trace 1320. Figure 1 and Figure 3 The illustrated embodiment is limited thereto, and the third trace 1310 and the fourth trace 1320 can be set as other types of traces according to actual needs, such as diamond traces, with empty blocks around them, so that the second connecting member 1400 can be disposed in the empty blocks.

[0019] Please also read Figure 2 and Figure 3 , the first connecting member 1200 is located at both the first layer and the second layer, and the first layer is different from the second layer. Figure 2 As shown, the first connector 1200 includes a first connector 1210 located on the first layer, and the first connector 1210 is used to couple the first trace 1110 and the second trace 1120. Figure 3 As shown, the first connector 1200 also includes a second connector 1220 located on the second layer, and the second connector 1220 is coupled to the Figure 2 A first trace 1110 and a second trace 1120 located on the first layer.

[0020] See also Figure 2 , the first trace 1110 includes a plurality of first coils 1111, and the second trace 1120 includes a plurality of second coils 1121. In one embodiment, the inductor device 1000 further includes a first input-output component 1500, which is disposed in the first region 2000 and coupled to the outermost first coil 1111 among the plurality of first coils 1111. In addition, the first input-output component 1500 is located in the first layer.

[0021] In other embodiments, the first input-output member 1500 includes a first end and a second end. The first end of the first input-output member 1500 (the lower end in the figure) is coupled to the outermost first coil 1111 among the plurality of first coils 1111. The second end of the first input-output member 1500 (the upper end in the figure) is disposed on one side of the junction 4000 and is located in a block where the first trace 1110 and the second trace 1120 are not disposed. For example, the upper end of the first input-output member 1500 is disposed on the left side of the junction 4000 between the first area 2000 and the second area 3000, and is located in the upper left block 2100 in the upper left corner of the first area 2000 where the first trace 1110 and the second trace 1120 are not disposed.

[0022] In one embodiment, the inductor device 1000 further includes a first central tap 1600. The first central tap 1600 is disposed in the second region 3000 and coupled to the outermost second coil 1121 among the plurality of second coils 1121. In addition, the first central tap 1600 is located in the first layer.

[0023] In other embodiments, the first central tapping element 1600 includes a first end and a second end. The first end (the lower end in the figure) of the first central tapping element 1600 is coupled to the outermost second coil 1121 among the plurality of second coils 1121. The second end (the upper end in the figure) of the first central tapping element 1600 is disposed on one side of the junction 4000 and is located in a block where the first trace 1110 and the second trace 1120 are not disposed. For example, the upper end of the first central tapping element 1600 is disposed on the right side of the junction 4000 between the first area 2000 and the second area 3000, and is located in the upper right block 3300 where the first trace 1110 and the second trace 1120 are not disposed in the upper right corner of the second area 3000.

[0024] In one embodiment, the plurality of first coils 1111 and the plurality of second coils 1121 are alternately coupled at a first side (such as the upper side) and a second side (such as the lower side) of the inductor device 1000. Figure 2 The embodiment is not limited to the embodiment of the present invention, the plurality of first coils 1111 and the plurality of second coils 1121 may also be alternately coupled at the third side (eg, the left side) and the fourth side (eg, the right side) of the inductor device 1000, depending on actual needs.

[0025] In one embodiment, the inductor device 1000 further includes a plurality of first jumpers. Figure 2 The opening of the first coil 1111 on the first side (such as the upper side) can be Figure 3The first jumper 1430 is coupled to the first coil 1111, so that the first coil 1111 is staggeredly coupled on the first side of the inductor device 1000. In addition, the two openings of the first coil 1111 on the second side (the lower side) can be respectively Figure 3 The first jumper 1440 and the first jumper 1450 are coupled to each other, so that the first coil 1111 is staggeredly coupled on the second side of the inductor device 1000. The first jumper 1430, the first jumper 1440 and the first jumper 1450 are located on the second layer. Similarly, the opening of the second coil 1121 on the first side (such as the upper side) can be Figure 3 The first jumper 1230 is coupled to the second coil 1121, and the two openings on the second side (the lower side) can be respectively Figure 3 The first jumper 1240 and the first jumper 1250 are coupled to each other, so that the second coil 1121 is alternately coupled at the first side and the second side of the inductor device 1000 .

[0026] Please also read Figure 2 and Figure 3 , the third trace 1310 and the fourth trace 1320 are located on the second layer, and the second connecting member 1400 is located on both the first layer and the second layer. Figure 2 As shown, the second connector 1400 includes a third connector 1410 located on the first layer, and the third connector 1410 is coupled to the Figure 3 The third trace 1310 and the fourth trace 1320 located on the second layer. Figure 3 The second connecting member 1400 further includes a fourth connecting member 1420 located on the second layer, and the fourth connecting member 1420 is used to couple the third trace 1310 and the fourth trace 1320 .

[0027] See also Figure 3 , the third trace 1310 includes a plurality of third coils 1311, and the fourth trace 1320 includes a plurality of fourth coils 1321. In one embodiment, the inductor device 1000 further includes a second input-output component 1700, which is disposed in the first region 2000 and coupled to the outermost third coil 1311 among the plurality of third coils 1311. In addition, the second input-output component 1700 is located in the second layer.

[0028] In other embodiments, the second input-output member 1700 includes a first end and a second end. The first end (the upper end in the figure) of the second input-output member 1700 is coupled to the outermost third coil 1311 among the plurality of third coils 1311. The second end (the lower end in the figure) of the second input-output member 1700 is disposed on one side of the junction 4000 and is located in a block where the third trace 1310 and the fourth trace 1320 are not disposed. For example, the lower end of the second input-output member 1700 is disposed on the left side of the junction 4000 between the first area 2000 and the second area 3000, and is located in the lower left block 2200 where the third trace 1310 and the fourth trace 1320 are not disposed in the lower left corner of the first area 2000.

[0029] In one embodiment, the inductor device 1000 further includes a second central tap 1800. The second central tap 1800 is disposed in the second region 3000 and coupled to the outermost fourth coil 1321 among the plurality of fourth coils 1321. In addition, the second central tap 1800 is located in the second layer.

[0030] In other embodiments, the second central tapping element 1800 includes a first end and a second end. The first end (the upper end in the figure) of the second central tapping element 1800 is coupled to the outermost fourth coil 1321 among the plurality of fourth coils 1321. The second end (the lower end in the figure) of the second central tapping element 1800 is disposed on one side of the junction 4000 and is located in a block where the third trace 1310 and the fourth trace 1320 are not disposed. For example, the lower end of the second central tapping element 1800 is disposed on the right side of the junction 4000 between the first area 2000 and the second area 3000, and is located in the lower right block 3400 where the third trace 1310 and the fourth trace 1320 are not disposed in the lower right corner of the second area 3000.

[0031] In one embodiment, the plurality of third coils 1311 and the plurality of fourth coils 1321 are alternately coupled at a third side (such as the left side) and a fourth side (such as the right side) of the inductor device 1000. In another embodiment, the first side and the second side are located in a first direction (such as the vertical direction in the figure), the third side and the fourth side are located in a second direction (such as the horizontal direction in the figure), and the first direction is perpendicular to the second direction.

[0032] In one embodiment, the inductor device 1000 further includes a plurality of second jumpers. Figure 3 The two openings of the third coil 1311 on the first side (such as the upper side) can be Figure 4 In addition, the fourth opening of the third coil 1311 on the second side (the lower side) can be connected to the second jumper 1911 and the fourth jumper 1912. Figure 4Furthermore, the opening of the third coil 1311 on the third side (such as the left side) can be formed by Figure 4 The second jumper 1913 is coupled to the third coil 1311, so that the third coil 1311 is staggered coupled on the third side of the inductor device 1000. In addition, the two openings of the third coil 1311 on the fourth side (such as the right side) can be Figure 4 The second jumpers 1918 and 1919 are coupled to each other, so that the third coils 1311 are staggeredly coupled at the fourth side of the inductor device 1000. The second jumpers 1911-1919 are located on the third layer.

[0033] In addition, the two openings of the fourth coil 1321 on the first side (such as the upper side) can be Figure 4 In addition, the fourth coil 1321 has four openings on the second side (the lower side) that can be connected by Figure 4 Furthermore, the second jumper 1925, 1926, 1927, 1928 of the fourth coil 1321 can be coupled to the second jumper 1925, 1926, 1927, 1928 of the fourth coil 1321. Figure 4 The second jumpers 1923 and 1924 are coupled to each other, so that the fourth coil 1321 is staggeredly coupled on the third side of the inductor device 1000. In addition, the opening of the fourth coil 1321 on the fourth side (such as the right side) can be Figure 4 Therefore, the fourth coils 1321 are staggeredly coupled at the fourth side of the inductor device 1000. The second jumpers 1921-1929 are located at the third layer.

[0034] In one embodiment, Figure 2 The components shown are all located on the first layer. Figure 3 The components shown are all located on the second layer, and Figure 4 The components shown are all located on the third layer. The first to third layers mentioned above are all different layers. Figures 1 to 4 The structure shown is limited and is only used to exemplarily illustrate one implementation method of the present invention.

[0035] Figure 5The figure is a schematic diagram of experimental data of an inductor device 1000 according to an embodiment of the present invention. As shown in the figure, using the structural configuration of the present invention, the experimental curve of the quality factor of the first inductor 1100 of the inductor device 1000 is C1, and the experimental curve of its inductance value is L1. In addition, the experimental curve of the quality factor of the second inductor 1300 of the inductor device 1000 is C2, and the experimental curve of its inductance value is L2. It can be seen from the figure that the inductor device 1000 using the structure of the present invention has a better quality factor. For example, at a frequency of 5 GHz, the quality factor of the inductor device 1000 is approximately 5.2. In one embodiment, the size of the inductor device 1000 of the present invention can be 130 microns x 64 microns, the line width can be 3 microns, and the line spacing can be 2 microns. However, the present invention is not based on Figure 5 The embodiment shown is limited and is only used to exemplarily illustrate one implementation method of the present invention.

[0036] As can be seen from the above implementation methods of the present case, the application of the present case has the following advantages. The inductor device shown in the embodiment of the present case can effectively utilize the vacant blocks to set the connection structure, thereby simplifying the connection structure and saving the device use area. In addition, if two eight-shaped inductors are stacked to form a structure similar to the present case, since each eight-shaped inductor needs to be crossed in the center, more bottom metal layers will be used, thereby reducing the quality factor (Q). If the inductor device of the present case is adopted, it does not need to be crossed in the center, so the quality factor can be improved.

[0037] Description of reference numerals:

[0038] 1000: Inductor device

[0039] 1100: First Inductor

[0040] 1110: First trace

[0041] 1111: First coil

[0042] 1120: Second trace

[0043] 1121: Second coil

[0044] 1200: First connecting piece

[0045] 1210: First connection

[0046] 1220: Second connection

[0047] 1230~1250: First jumper

[0048] 1300: Second inductor

[0049] 1310: The third trace

[0050] 1311: Third coil

[0051] 1320: The fourth trace

[0052] 1321: Fourth coil

[0053] 1400: Second connecting piece

[0054] 1410: The third connection

[0055] 1420: Fourth connection

[0056] 1430~1450: First jumper

[0057] 1500: First input and output

[0058] 1600: First center tap piece

[0059] 1700: Second input and output

[0060] 1800: Second center tap piece

[0061] 1911-1919, 1921-1929: Second jumper

[0062] 2000: First Region

[0063] 2100, 2200, 2300, 2400: Blocks

[0064] 3000: Second Area

[0065] 3100, 3200, 3300, 3400: Blocks

[0066] 4000: Junction

[0067] C1, C2, L1, L2: Curve

Claims

1. An inductor device, comprising: A first inductor is located at a first layer, and the first inductor comprises: A first trace is disposed in the first area; and a second trace disposed in a second region, wherein the first region and the second region are adjacent to each other at a junction; A first connecting member is disposed adjacent to the junction and in a block where the first trace and the second trace are not disposed, and couples the first trace and the second trace; A second inductor, located at a second layer different from the first layer, the second inductor comprising: A third trace is disposed in the first area; and a fourth trace disposed in the second area; and A second connecting member is disposed adjacent to the junction and in a block where the third trace and the fourth trace are not disposed, and couples the third trace and the fourth trace. Wherein, the first connecting member is located on the first layer and the second layer.

2. The inductor device according to claim 1, wherein the first connection member comprises: A first connecting member, located on the first layer and coupling the first trace and the second trace; as well as The second secondary connection member is located on the second layer and couples the first trace and the second trace through a plurality of through holes.

3. The inductor device of claim 2, wherein the first trace comprises a plurality of first coils and the second trace comprises a plurality of second coils; The inductor device further comprises: A first input-output component is disposed in the first area and coupled to the outermost first coil among the plurality of first coils, wherein the first input-output component is located in the first layer; The first input-output component includes: A first end is coupled to an outermost first coil among the plurality of first coils; and The second end is arranged at one side of the junction and is located in a block where the first trace line and the second trace line are not arranged.

4. The inductor device of claim 3, further comprising: A first central tapping device is disposed in the second area and coupled to the outermost second coil among the plurality of second coils, wherein the first central tapping device is located in the first layer; The first central tapping element comprises: A first end is coupled to the outermost second coil among the plurality of second coils; as well as The second end is arranged at one side of the junction and is located in a block where the first trace line and the second trace line are not arranged.

5. The inductor device according to claim 4, wherein the plurality of first coils and the plurality of second coils are alternately coupled at a first side and a second side of the inductor device, respectively; The inductor device further comprises: A plurality of first jumpers, wherein the plurality of first coils and the plurality of second coils are alternately coupled at the first side and the second side of the inductor device through the plurality of first jumpers, wherein the first jumpers are located at the second layer.

6. The inductor device of claim 5, wherein the third trace and the fourth trace are located on the second layer, and the second connector is located on the first layer and the second layer; The second connecting member comprises: a third connecting member, located on the first layer, coupling the third trace and the fourth trace through the plurality of through vias; as well as The fourth secondary connection element is located on the second layer and couples the third trace line and the fourth trace line.

7. The inductor device of claim 6, wherein the third trace comprises a plurality of third coils, and the fourth trace comprises a plurality of fourth coils; The inductor device further comprises: A second input-output component is disposed in the first area and coupled to the outermost third coil among the plurality of third coils, wherein the second input-output component is located in the second layer; The second input-output component includes: A first end is coupled to the outermost third coil among the plurality of third coils; and The second end is arranged at one side of the junction and is located in a block where the third trace line and the fourth trace line are not arranged.

8. The inductor device of claim 7, further comprising: A second central tapping element is disposed in the second area and coupled to the outermost fourth coil among the plurality of fourth coils, wherein the second central tapping element is located in the second layer; The second central tapping element comprises: A first end is coupled to the outermost fourth coil among the plurality of fourth coils; as well as The second end is arranged at one side of the junction and is located in a block where the third trace line and the fourth trace line are not arranged.

9. The inductor device according to claim 8, wherein the plurality of third coils and the plurality of fourth coils are alternately coupled at a third side and a fourth side of the inductor device, wherein the first side and the second side are located in a first direction, the third side and the fourth side are located in a second direction, and the first direction is perpendicular to the second direction.

10. The inductor device of claim 9, further comprising: A plurality of second jumpers, wherein the plurality of third coils and the plurality of fourth coils are alternately coupled at the third side and the fourth side of the inductor device through the plurality of second jumpers, wherein the plurality of second jumpers are located at a third layer.

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