Inductor devices
The invention relates to a high frequency inductor device with high quality factor (Q). The inductor device comprises a substrate and a gradually sized conductive coil with a plurality of windings surrounded and disposed on the substrate. The windings comprises a first conductive segment disposed on a first surface of the substrate, a second conductive segment disposed on a second surface of the substrate, a first conductive via hole connecting the first and second conductive segments, and a second conductive via hole connecting the second conductive segment to a first conductive segment of the following winding. The length of the first conductive segment is different than that of the first conductive segment of the following winding.
1. An inductor device, comprising:
a substrate; and
a gradually sized conductive coil with a plurality of windings surrounding a part of the substrate;
wherein each of the windings comprises a first conductive segment, a second conductive segment, a first conductive via hole connecting the first and second conductive segments, and a second conductive via hole connecting the second conductive segment to a first conductive segment of a following winding; and
wherein the length of the first conductive segment is 1-3.5 times less than that of the first conductive segment of the following winding.
2. The inductor device as claimed in claim 1 , wherein the substrate comprises a high magnetic permeable material with relative permeability substantially greater than 1.
3. The inductor device as claimed in claim 1 , further comprising an input end connected to the shortest first conductive segment, and an output end connected to the longest second conductive segment.
4. The inductor device as claimed in claim 1 , further comprising an input end connected to the longest first conductive segment, and an output end connecting the shortest second conductive segment.
5. The inductor device as claimed in claim 1 , wherein the width of the first conductive segment is less than that of the first conductive segment of the following winding.
6. The inductor device as claimed in claim 1 , wherein the width of the first conductive segment is less than that of the second conductive segment.
7. The inductor device as claimed in claim 1 , wherein the distance between the first conductive segment and the previous first conductive segment is less than the distance between the first conductive segment and the following first conductive segment.
8. The inductor device as claimed in claim 1 , wherein the distance between the first conductive segments and the previous first conductive segment is 1-2 times greater than the distance between the first conductive segment and the following first conductive segment.
9. The inductor device as claimed in claim 1 , wherein the diameter of the first conductive via hole is less than the diameter of the second conductive via hole.
10. The inductor device as claimed in claim 1 , wherein the diameter of the first conductive via hole is less than that of the first conductive via hole of the following winding.
11. The inductor device as claimed in claim 1 , wherein the diameter of the first conductive via hole is 1-2 times greater than that of the first conductive via hole of the following winding.
12. The inductor device as claimed in claim 1 , wherein the shape of the first conductive via hole comprises a straight column, a trapezoid, or combinations thereof.
13. The inductor device as claimed in claim 1 , wherein both the first conductive segment and the second conductive segment are straight line segments.
14. The inductor device as claimed in claim 1 , wherein both the first conductive segment and the second conductive segment are trapezoid line segments.
15. The inductor device as claimed in claim 1 , wherein both the first conductive segment and the second conductive segment are semi-arc segments.
16. The inductor device as claimed in claim 1 , wherein the width of the first conductive segment is 1-2.5 times greater than that of the first conductive segment of the following winding.
17. The inductor device as claimed in claim 1 , wherein the substrate is a multi-layer laminated substrate structure.
18. The inductor device as claimed in claim 1 , wherein the length and width and line interval of the inductor device are gradually increased, and the diameter of each conductive via hole is constant, with more than one conductive via hole disposed at the conductive segment.
19. An inductor device, comprising:
a substrate; and
a gradually sized conductive coil with a plurality of windings surrounding a part of the substrate;
wherein each of the windings comprises a first conductive segment, a second conductive segment, a first conductive via hole connecting the first and second conductive segments, and a second conductive via hole connecting the second conductive segment to a first conductive segment of a following winding; and
wherein the length of the first conductive segment of a winding is 1-3.5 times less than that of the first conductive segment of the following winding, and the width of the first conductive segment is less than that of the first conductive segment of the following winding.
20. The inductor device as claimed in claim 19 , wherein the substrate comprises a high magnetic permeable material with relative permeability substantially greater than 1.
21. The inductor device as claimed in claim 19 , further comprising an input end connected to the shortest first conductive segment, and an output end connected to the longest second conductive segment.
22. The inductor device as claimed in claim 19 , further comprising an input end connected to the longest first conductive segment, and an output end connected to the shortest second conductive segment.
23. The inductor device as claimed in claim 19 , wherein the distance between the first conductive segments and the previous first conductive segment is lesser than the distance between the first conductive segment and the following first conductive segment.
24. The inductor device as claimed in claim 19 , wherein the distance between the first conductive segment and the previous first conductive segment is 1-2 times greater than the distance between the first conductive segment and the following first conductive segment.
25. The inductor device as claimed in claim 19 , wherein the diameter of the first conductive via hole is less than the diameter of the second conductive via hole.
26. The inductor device as claimed in claim 19 , wherein the diameter of the first conductive via hole is less than that of the first conductive via hole of the following winding.
27. The inductor device as claimed in claim 19 , wherein the diameter of the first conductive via hole is 1-2 times greater than that of the first conductive via hole of the following winding.
28. The inductor device as claimed in claim 19 , wherein the shape of the first conductive via hole comprises a straight column, a trapezoid, or combinations thereof.
29. The inductor device as claimed in claim 19 , wherein both the first conductive segment and the second conductive segment are straight line segments.
30. The inductor device as claimed in claim 19 , wherein both the first conductive segment and the second conductive segment are trapezoid line segments.
31. The inductor device as claimed in claim 19 , wherein both the first conductive segment and the second conductive segment are semi-arc segments.
32. The inductor device as claimed in claim 19 , wherein the width of the first conductive segment is 1-2.5 times greater than that of the first conductive segment of the following winding.
33. The inductor device as claimed in claim 19 , wherein the substrate is a multi-layer laminated substrate structure.
34. The inductor device as claimed in claim 19 , wherein the number of windings of the gradually sized conductive coil exceeds 10.
35. The inductor device as claimed in claim 19 , wherein the length and width and line interval of the inductor device are gradually increased, and the diameter of each conductive via hole is constant, with more than one conductive via hole disposed at the conductive segment.