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US 10,256,027 B2Granted
Embedded coil assembly and production method
AssigneeTexas Instruments Incorporated
InventorsHaiying Li, Benjamin Michael Sutton, Ming Li
Life of this patent
Estimating the term…
Abstract
An embodiment of coil assembly includes a laterally disposed ferrite ring having a central opening. A laterally disposed annular conductive member is positioned above the ferrite ring and has a plurality of spaced-apart circumferential segments. A plurality of bond wires are connected at opposite ends thereof to outer and inner portions of the plurality of spaced-apart circumferential segments. A layer of mold compound covers the ferrite ring and the bond wires.
Claims18
An embedded coil assembly comprising:
- an outer metal ring;
- a nonconductive plate member attached to an inner portion of said outer metal ring;
- an inner metal ring attached to said nonconductive member;
- an annular metal bridging portion connecting said outer and inner metal rings, the bridging portion having a thickness, in a direction perpendicular to a plane defined by the outer metal ring, less than a thickness of the outer metal ring and the inner metal ring;
- a ferrite ring, having a central opening, positioned on said annular metal bridging portion;
- and
- a layer of mold compound, portions of said ferrite ring, said inner and outer metal rings, said annular metal bridging portion and said nonconductive member being embedded in said layer of mold compound.
4 more elements
An embedded coil assembly comprising:
- a ferrite ring having a central opening;
- an annular conductive member, including an annular metal layer having a central opening, and an outer annular metal portion and an inner annular metal portion extending from the annular metal layer;
- and
- a bond wire connected to the outer annular metal portion and the inner annular metal portion, and contacting the ferrite ring.
1 more element
An embedded coil assembly comprising:
- a ferrite ring having a central opening;
- an annular conductive member, contacting a portion of the ferrite ring, including an annular metal layer having a central opening;
- an outer annular metal portion and an inner annular metal portion, having a generally rectangular shape at a cross section, extending from the annular metal layer;
- and
- a bond wire connected to the outer annular metal portion and the inner annular metal portion, wherein the bond wire contacts a first surface of the ferrite ring.
2 more elements
Dependencies are inferred from the claim text.