Conductive emissions protection
View Patent ↗According to one non-limiting embodiment, a low conductive emission substrate includes a plurality of thin high dielectric strength insulating layers separated by a corresponding plurality of conductive layers, wherein one of the plurality of conductive layers is shorted to another one of the plurality of conductive layers.
1. A multi-layer substrate comprising:
a plurality of high dielectric strength insulating layers separated by a corresponding plurality of conductive layers, wherein each of the plurality of high dielectric strength insulating layers has a dielectric strength of at least approximately 6.25 volts per micron and one of the plurality of conductive layers is shorted to another one of the plurality of conductive layers.
2. The substrate of claim 1 , wherein at least one of the plurality of insulating layers is formed using a laser deposition process.
3. The substrate of claim 1 , wherein at least one of the plurality of insulating layers is formed using an E-beam deposition process.
4. The substrate of claim 2 , wherein at least one of the plurality of insulating layers includes at least one material selected from the group consisting of silicon carbide, silicon nitride, silicon dioxide, aluminum nitride, aluminum oxide, alumina, hafnium dioxide, and hafnia.
5. The substrate of claim 2 , wherein at least one of the plurality of conductive layers are formed using the laser deposition process.
6. The substrate of claim 5 , wherein at least one of the plurality of conductive layers includes at least one material selected from the group consisting of copper, aluminum, nickel, and gold.
7. The substrate of claim 1 , further comprising a die coupled to one of the plurality of conductive layers.
8. The substrate of claim 7 , wherein the die corresponds to a switch.
9. The substrate of claim 6 , wherein the plurality of conductive layers and the plurality of insulating layers are operable to transfer heat.
10. The substrate of claim 1 , wherein one of the plurality of insulating layers and one of the plurality of conductive layers collectively provide a Faraday shield.
11. A multi-layer substrate comprising:
a first insulating layer having a thickness of 1 micron;
a first conductive layer formed on the first insulating layer;
a second insulating layer formed on the first conductive layer, wherein the second insulating layer has a thickness of 1 micron;
a second conductive layer formed on the second insulating layer, the second conductive layer being operable to receive an electrical component; and
an electrical connection between the first conductive layer and the second conductive layer.
12. The substrate of claim 11 , wherein the first insulating layer and the second insulating layer are formed using at least one of a laser deposition process and an E-beam deposition process.
13. The substrate of claim 11 , wherein a die is coupled to the second conductive layer, and wherein the first conductive layer, the first insulating layer, the second conductive layer, and the second insulating layer are operable to transfer heat.
14. The substrate of claim 1 , wherein each of the plurality of high dielectric strength insulating layers has a dielectric strength that is greater than 19.68 volts per micron.
15. The substrate of claim 1 , wherein at least one of the plurality of insulating layers includes silicon carbide.
16. A multi-layered substrate comprising:
a plurality of high dielectric strength insulating layers separated by a corresponding plurality of conductive layers, wherein at least one of the plurality of insulating layers includes hafnia and one of the plurality of conductive layers is shorted to another one of the plurality of conductive layers.