Embodiments disclosed herein include electronic packages with magnetic features and methods of forming such packages. In an embodiment, a package substrate comprises a core and a conductive via through a thickness of the core. In an embodiment, a shell surrounds a perimeter of the conductive via and the shell is a magnetic material. In an embodiment, a surface of the conductive via is spaced away from the shell.

A thin film inductor is disclosed, which includes a thin film magnetic core. The thin film magnetic core includes at least one magnetic thin film. In each magnetic thin film, at least one type-1 gap is provided. A length direction of the type-1 gap is parallel to a direction of hard magnetization of the magnetic thin film. If the thin film magnetic core comprises at least two magnetic thin films, the at least two magnetic thin films are laminated and overlap each other. A sum of widths of all type-1 gaps in each magnetic thin film is the same.

Coil structures and methods of forming are provided. The coil structure includes a substrate. A plurality of coils is disposed over the substrate, each coil comprising a conductive element that forms a continuous spiral having a hexagonal shape in a plan view of the coil structure. The plurality of coils is arranged in a honeycomb pattern, and each conductive element is electrically connected to an external electrical circuit.

An assembly includes an electromagnetic coil with a conductor, and a substrate on which the conductor is arranged. The coil has a core and the conductor extends around the core. The core is formed by a ferromagnetic rivet that is fastened to the substrate.

An inductance element includes: an insulative substrate body of a rectangular solid shape having length dimension L, height dimension H, and width dimension W, where 1.5≤W/H; at least one internal conductor built in the substrate body and capable of making an electrical current flow therethrough in one uniform direction orthogonal to a cross-section of the substrate body; and a pair of external electrodes provided on the surface of the substrate body in a manner respectively connected to both ends of the internal conductor, so that the internal conductor can make an electrical current flow therethrough in the one uniform direction; wherein, in the cross-section of the substrate body, a rectangular internal conductor region having height dimension Eh and width dimension Ew surrounds the internal conductor in a manner contacting the outermost positioned portions of the internal conductor in the height and width directions, wherein Ew/Eh>W/H.

Systems and methods for using parasitic capacitance of a transformer as an element in a resonant converter are provided. Aspects include determining a parasitic capacitance associated with a transformer, determining a resonant circuit configuration based at least in part on the parasitic capacitance associated with the transformer, and providing a resonant converter comprising the resonant circuit and the transformer.

A laminated transformer-type transmitter-receiver device for transmitting or delivering electrical signals and/or power. The laminated device can include two metal shielding layers disposed between transmit and receive windings, which, in turn, are disposed between two magnetic layers. The laminated device further includes a dielectric isolation layer disposed between the two metal shielding layers. In the laminated device, no (or very little) common mode capacitance is distributed within the dielectric isolation layer, and no (or very little) common mode or “leakage” current flows across the dielectric isolation layer. As a result, various adverse effects of the common mode capacitance and the leakage current during operation of the laminated device are avoided.

A radio frequency filtering circuitry includes a first inductor, a second inductor, and a conductive loop. The first inductor receives a first current that induces a second current in the second inductor upon receiving the first current. The first inductor and/or the second inductor induce a third current in the conductive loop. The conductive loop adjusts the third current to reduce a first gain peak of an output signal to correlate to a second gain peak of the output signal.

A wireless charging device (20) and a to-be-charged device (10) are provided, to support two or more wireless charging technologies, so as to optimize a circuit design and improve power transmission efficiency. The to-be-charged device (10) includes: a first receiving coil, configured to receive an electromagnetic signal based on a first wireless charging technology, and convert the electromagnetic signal into an alternating current signal; and a second receiving coil, configured to receive an electromagnetic signal based on a second wireless charging technology, and convert the electromagnetic signal into an alternating current signal, where the first wireless charging technology and the second wireless charging technology support different resonance frequency ranges.

Various embodiments comprise a magnetic field compensation system. In some examples, the system comprises one or more coil drivers, magnetic field coils, and one or more magnetic field sensors. The one or more coil drivers supply a current to the magnetic field coils to generate a magnetic field. The magnetic field coils receive the current and generate the magnetic field. The magnetic field coils may be arranged in an array. The magnetic field coils individually comprise at least one coil trace pattern that encloses an area. The one or more magnetic field sensors measure the magnetic field generated by the magnetic field coils at a location proximate to the magnetic field coils.