Patent ID: 10490341

Abstract:
An electrical device comprises a substrate, a first dielectric layer, a first die, an adjustable inductor and a second die. The substrate has a first surface. The first dielectric layer is disposed on the first surface of the substrate and has a first surface. The first die is surrounded by the first dielectric layer. The adjustable inductor is electrically connected to the first die. The adjustable inductor comprises a plurality of pillars surrounded by the first dielectric layer, a plurality of first metal strips disposed on the first surface of the first dielectric layer and electrically connected to the pillars, and a plurality of second metal strips disposed on the first surface of the first dielectric layer and electrically connected to the pillars. A width of at least one of the second metal strips is different than a width of at least one of the first metal strips. The second die is electrically connected to the adjustable inductor.