Integrated Circuit with Laminated Magnetic Core Inductor Including a Ferromagnetic Alloy
AssigneeFerric Inc.
InventorsNoah Sturcken, Ryan Davies, Michael Lekas
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Abstract
A structure includes a semiconductor integrated circuit comprising a multilevel wiring network and an inductor integrated into the multilevel wiring network. The inductor includes a planar laminated magnetic core and a conductive winding that turns around in a generally spiral manner on the outside of the planar laminated magnetic core. The planar laminated magnetic core includes an alternating sequence of a magnetic layer and a non-magnetic layer. The magnetic layer comprises a ferromagnetic alloy having an iron composition of about 10 atomic percent to about 90 atomic percent.
Claims25
A structure comprising:
- a semiconductor integrated circuit comprising a multilevel wiring network;
- and
- an inductor integrated into said multilevel wiring network, said inductor comprising a planar laminated magnetic core and a conductive winding that turns around in a generally spiral manner on the outside of said planar laminated magnetic core, said planar laminated magnetic core comprising an alternating sequence of a magnetic layer and a non-magnetic layer, wherein the magnetic layer comprises a ferromagnetic alloy having an iron composition of about 10 atomic percent to about 90 atomic percent.
A microelectronic device comprising:
- a semiconductor integrated circuit, wherein said semiconductor integrated circuit comprises a multilevel wiring network, wherein said semiconductor integrated circuit operates with a plurality of DC supply voltages;
- and
- a DC to DC voltage converter which delivers at least one of said DC supply voltages for said semiconductor integrated circuit, said DC to DC voltage converter comprising an inductor, and wherein said inductor is integrated thereinto said multilevel wiring network, wherein said inductor comprises a planar magnetic core and a conductive winding, wherein said conductive winding turns around in generally spiral manner on the outside of said planar magnetic core, said planar magnetic core having a laminated configuration comprising at least one magnetic layer and at least one current rectifying layer, wherein the magnetic layer comprises a ferromagnetic alloy having an iron composition of about 10 atomic percent to about 90 atomic percent.
Dependencies are inferred from the claim text.