Patent Number: 
Section: claims

1. An apparatus comprising:a semiconductor device integrally formed within a monocrystalline silicon substrate such that the semiconductor device is a part of the monocrystalline substrate;a Faraday cage that encloses said semiconductor device within a structure of metal that has an at least one vertical metal wall, wherein a bottom surface of said Faraday cage is formed on a top surface of said monocrystalline silicon substrate, and said bottom surface of said Faraday cage is below a top surface of said semiconductor device; anda patterned insulating layer within the Faraday cage and over the at least one semiconductor device; andan interconnect within the Faraday cage and over a top surface of the patterned insulating layer. 2. The apparatus of claim 1, further comprising a second semiconductor device located outside and adjacent to the Faraday cage. 3. The apparatus of claim 1, wherein the at least one vertical metal wall is made from one or more metal layers. 4. The apparatus of claim 1, wherein the interconnect is connected with the at least one semiconductor device and includes input/output leads that pass through the at least one vertical metal wall of the Faraday cage at one or more insulated locations. 5. The apparatus of claim 4, wherein the one or more insulated locations are made from one or more insulating layers. 6. The apparatus of claim 4, wherein the interconnect is constructed with a metal layer that is used to construct the Faraday cage. 7. The apparatus of claim 4, wherein the interconnect is located within the Faraday cage. 8. The apparatus of claim 4, wherein the interconnect is further located outside the Faraday cage. 9. The apparatus of claim 1, further comprising a filled via constructed with a metal layer used to construct the Faraday cage. 10. The apparatus of claim 9, wherein the filled via is located within the Faraday cage. 11. The apparatus on a substrate of claim 9, wherein the filled via is located outside the Faraday cage. 12. The apparatus on a substrate of claim 1, wherein the at least one semiconductor device can be chosen from the group consisting of MOS, CMOS, NMOS, PMOS, Bi-CMOS and DMOS. 13. An apparatus comprising:an at least one semiconductor device integrally formed within a monocrystalline silicon substrate such that the semiconductor device is a part of the monocrystalline substrate;an at least one patterned insulating layer including a filled via opening positioned over the at least one semiconductor device;an at least one metal layer positioned over the at least one insulating layer such that the at least one metal layer forms a first metal cage that encloses the at least one semiconductor device and has at least one vertical metal wall, wherein a bottom surface of said first metal cage is on a top surface of said monocrystalline silicon substrate, and said bottom surface of said first metal cage is below a top surface of said semiconductor device. 14. The apparatus of claim 13, further comprising a second semiconductor device positioned outside and adjacent the first metal cage. 15. The apparatus of claim 13, further comprising:a second metal cage that encloses a first interconnect and is positioned higher than the first metal cage;a second interconnect positioned outside the second metal cage;an at least one set of input/output leads that connect the first interconnect within the second metal cage to the second interconnect positioned outside the second metal cage. 16. An apparatus comprising:a semiconductor device integrally formed within a semiconductor substrate such that the semiconductor device is a part of the semiconductor substrate; anda Faraday cage that encloses said semiconductor device within a structure of metal, wherein a bottom surface of said Faraday cage is formed on a top surface of said semiconductor substrate, and said bottom surface of said Faraday cage is below a top surface of said semiconductor device. 17. The apparatus of claim 16, further comprising a patterned insulating layer within the Faraday cage and over the at least one semiconductor device. 18. The apparatus of claim 17, further comprising an interconnect within the Faraday cage and over a top surface of the patterned insulating layer. 19. The apparatus of claim 18, wherein said bottom surface of said Faraday cage is below a top surface of said semiconductor device. 20. The apparatus of claim 18, wherein said bottom surface is in direct contact with said top surface of said semiconductor substrate.