US 12,230,430 B2
Substrate embedded magnetic core inductors and method of making
Srinivas Pietambaram, Chandler, AZ (US); Kristof Darmawikarta, Chandler, AZ (US); Gang Duan, Chandler, AZ (US); Yonggang Li, Chandler, AZ (US); and Sameer Paital, Chandler, AZ (US)
Assigned to Intel Corporation, Santa Clara, CA (US)
Filed by Intel Corporation, Santa Clara, CA (US)
Filed on Apr. 28, 2022, as Appl. No. 17/731,498.
Application 17/731,498 is a division of application No. 16/022,894, filed on Jun. 29, 2018, granted, now 11,348,718.
Prior Publication US 2022/0254559 A1, Aug. 11, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01F 27/26 (2006.01); H01F 27/42 (2006.01); H01L 21/768 (2006.01); H01L 23/64 (2006.01); H01F 27/245 (2006.01); H01F 27/25 (2006.01)
CPC H01F 27/26 (2013.01) [H01F 27/425 (2013.01); H01L 21/76871 (2013.01); H01L 23/645 (2013.01); H01F 27/245 (2013.01); H01F 27/25 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An electronic package for use as an integrated voltage regulator with a microelectronic system, the electronic package comprising:
a substrate defining at least one layer having one or more of electrically conductive elements separated by a dielectric material;
a first magnetic foil having ferromagnetic alloy ribbons, the first magnetic foil embedded within the substrate adjacent to the one or more of electrically conductive elements, wherein the first magnetic foil is positioned to interface with and be spaced from a first side of the one or more of electrically conductive elements such that the first magnetic foil interfaces with and is spaced from the first side of the one or more of electrically conductive elements, and wherein the dielectric material comprises a single continuous dielectric layer from a top of the first magnetic foil to a bottom of the one or more of electrically conductive elements; and
a second magnetic foil that is positioned on a second side of the one or more of electrically conductive elements such that the second magnetic foil interfaces with and is spaced from the second side of the one or more of electrically conductive elements, wherein the second magnetic foil is spaced apart and isolated from the first magnetic foil.