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US 10,475,568 B2Granted
Power management module and method of manufacture
AssigneeL. Pierre de Rochemont
InventorL. Pierre de Rochemont
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Abstract
A power management module, provides an inductor including one or more electrical conductors disposed around a ferromagnetic ceramic element including one or more metal oxides having fluctuations in metal-oxide compositional uniformity less than or equal to 1.50 mol % throughout the ceramic element.
Claims12
A power management module formed on the surface of a semiconductor chip containing active circuit elements including one or more switching elements embedded within the semiconductor chip, comprising:
- an inductor coil including one or more electrical conductors disposed around a ferromagnetic ceramic element formed on the semiconductor chip;
- wherein the ferromagnetic ceramic element includes one or more metal oxides having atomic scale chemical uniformity resulting in fluctuations in metal-oxide compositional uniformity less than or equal to 1.50 mol % throughout said ceramic element, wherein 100% of all grains have a diameter that is less than or equal to 1.5× the mean grain diameter;
- and
- one or more switching elements formed on or within the semiconductor chip and connected to the one or more electrical conductors to alter an effective number of windings of the inductor coil.
1 more element
Dependencies are inferred from the claim text.