Laminated magnetic inductor stack with high frequency peak quality factor

A method of fabricating a magnetic stack arrangement of a laminated magnetic inductor, the method comprising:

• forming a first insulating layer proximate to a conductive coil of the laminated magnetic inductor;
• forming a second insulating layer proximate to the conductive coil opposite a surface of the first insulating layer;
• and
• forming a third insulating layer between the first and second insulating layers such that the third insulating layer is further from the conductive coil than either the first insulating layer or the second insulating layer;
• wherein a thickness of the third insulating layer is greater than a thickness of either the first or second insulating layers.

A laminated magnetic inductor comprising:

• a first inner region comprising one or more magnetic layers alternating with one or more insulating layers;
• an outer region comprising one or more magnetic layers alternating with one or more insulating layers, the outer region formed opposite a surface of the first inner region;
• and
• a second inner region comprising one or more magnetic layers alternating with one or more insulating layers, the second inner region formed opposite a surface of the outer region;
• wherein a thickness of an insulating layer in the outer region is greater than a thickness of an insulating layer in either the first or second inner regions.