Claims
- 1. A multilayer tape stack comprising a green tape stack, a first ferrite tape made from the composition comprising a ferrite powder and a low melt temperature oxide modifier in sufficient amount so that the ferrite sinters at a temperature below about 900.degree. C., a resin solution and a dispersant solution, a conductive coil screen printed from a metallization ink onto the first ferrite tape, and a second ferrite tape having the same composition as the first ferrite tape overlying the coil.
- 2. A multilayer tape stack according to claim 1 wherein the second ferrite tape is made from a plurality of said ferrite tape layers.
- 3. A multilayer tape stack according to claim 1 wherein the green tape stack has a coefficient of expansion matched to that of gallium arsenide.
- 4. A multilayer tape stack of claim 1 wherein the ferrite tape has a coefficient of expansion matched to that of the green tape composition.
- 5. A multilayer tape stack of claim 1 wherein the metallization ink is made from gold powder, a dispersant and a resin solution.
- 6. A multilayer tape stack of claim 1 wherein the low melt temperature oxide is bismuth oxide.
- 7. An embedded inductor made by firing the multilayer tape stack of claim 1.
- 8. A multilayer tape stack according to claim 1 wherein the green tape stack is mounted on a metal support substrate.
- 9. An embedded inductor according to claim 8 wherein the metal support is a ferro/nickel/cobalt/manganese alloy.
- 10. A multilayer tape stack according to claim 1 wherein the first ferrite tape is made from a plurality of said ferrite tape layers.
- 11. A multilayer tape stack according to claim 10 wherein a second green tape stack is mounted over the second ferrite tape stack.
- 12. An embedded inductor made by firing the multilayer tape stack of claim 11.
Parent Case Info
This application claims the benefit of U.S. Provisional Application Ser. No. 60/102,773 filed Oct. 2, 1998.
US Referenced Citations (8)
Foreign Referenced Citations (1)
Number |
Date |
Country |
5-55044A |
Mar 1993 |
JPX |