Electrical component
View Patent ↗An electrical component that includes a substrate that includes at least one electrical circuit is described herein. The electrical component also includes a heat sink in an aperture through the substrate.
1. An electrical component comprising:
a substrate comprising at least one electrical circuit;
a heat sink in a plated through-hole that extends through the substrate;
a first horizontal signal line in a first metallization plane in the substrate; and
a second horizontal signal line in a second metallization plane in the substrate;
wherein the heat sink provides an electrical signal path; and
wherein the heat sink in the plated through-hole that extends through the substrate forms a vertical electrical signal path between the first horizontal signal line and the second horizontal signal line.
2. The electrical component of claim 1 , wherein the electrical circuit is an LC filter.
3. The electrical component of claim 1 , wherein the substrate comprises a buried signal carrying conductive surface and the heat sink is electrically connected to the buried signal carrying conductive surface.
4. The electrical component of claim 3 , wherein the buried conductive surface comprises a ground surface.
5. The electrical component of claim 1 , wherein the substrate comprises:
a plurality of metallization planes including a first metallization plane and a second metallization plane; and
a dielectric coating between the first metallization plane and the second metallization plane.
6. The electrical component of claim 5 , wherein the dielectric coating comprises a ceramic coating.
7. The electrical component of claim 1 , wherein the heat sink comprises a plurality of parallel plated through-holes electrically connected to an electrical potential.
8. The electrical component of claim 7 , wherein the plated through-holes are in a row and a spacing between two successive plated through-holes in the row is substantially the same.
9. The electrical component of claim 7 , further comprising a signal line between the plated through-holes of the heat sink.
10. The electrical component of claim 9 , further comprising a conductive surface, wherein the signal line and the conductive surface are formed in the substrate.
11. The electrical component of claim 9 , wherein at least one section of the signal line is in a metallization plane of the substrate.
12. The electrical component of claim 11 , wherein a buried conductive surface in the substrate and the signal line are in the same metallization plane.
13. The electrical component of claim 11 , wherein a buried conductive surface in the substrate and the signal line are in different metallization planes.
14. The electrical component of claim 11 , wherein the substrate includes a first conductive surface and a second conductive surface and the signal line is between the first conductive surface and the second conductive surface with the first conductive surface, the signal line, and the second conductive surface each being in different metallization planes.
15. The electrical component of claim 9 , wherein at least one section of the signal line is parallel to the plated through-holes and forms at least one section of an electrical line.
16. The electrical component of claim 15 , wherein a buried conductive surface in the substrate includes opening for a vertical section of the signal line.
17. The electrical component of claim 9 , wherein at least one of a buried conductive surface in the substrate and the signal line is included in a filter in the substrate.
18. The electrical component of claim 1 , further comprising an amplifier on the substrate, wherein the heat sink is configured to dissipate heat from the amplifier.
19. The electrical component of claim 1 , further comprising at least one of a changeover switch, a transmit amplifier, a receive amplifier, a power detector, a bandpass filter, a duplexer, and a balun on the substrate.
20. The electrical component of claim 1 , further comprising at least one of a low-pass filter, a high-pass filter, a diplexer, a bandpass filter, a duplexer, a balun, and a directional coupler in the substrate.
21. The electrical component of claim 1 , wherein the electrical component comprises a multiband WLAN frontend module.
22. The electrical component of claim 7 , further comprising additional plated through-holes in the substrate, wherein a cross-sectional size of the plated through-holes of the heat sink is greater than a cross-sectional size of the additional plated through-holes.
23. The electrical component of claim 1 , further comprising:
a signal carrying terminal on an underside of the substrate, the signal carrying terminal being electrically connected to the heat sink in the plated through-hole.