A method includes forming a plurality of dielectric layers, forming a plurality of redistribution lines in the plurality of dielectric layers, etching the plurality of dielectric layers to form an opening, filling the opening to form a through-dielectric via penetrating through the plurality of dielectric layers, forming a dielectric layer over the through-dielectric via and the plurality of dielectric layers, forming a plurality of bond pads in the dielectric layer, bonding a device die to the dielectric layer and a first portion of the plurality of bond pads through hybrid bonding, and bonding a die stack to through-silicon vias in the device die.

A magnetic inlay for a component carrier includes a magnetic matrix and an electrically conductive structure embedded horizontally in the magnetic matrix. The electrically conductive structure is configured as an inductive element. The magnetic inlay is configured so that, depending on the geometrical properties of the electrically conductive structure, a specific inductance value is provided for the magnetic inlay.

The present disclosure facilitates impedance matching between a power amplifier and filters. A radio-frequency circuit includes a power amplifier, a plurality of transmit filters, a switch, a plurality of first matching networks, and a second matching network. The switch switches the plurality of transmit filters to be coupled to the power amplifier. The plurality of first matching networks are coupled between the plurality of transmit filters and the switch. The second matching network is coupled between the power amplifier and the switch. The second matching network includes a transmission line transformer.

A method for manufacturing a circuit board, includes: stacking a first peelable film on a second peelable film, and disposing fluffy carbon nanotubes between the first peelable film and the second peelable film, thereby obtaining a carbon nanotube layer; pressing the first peelable film, the carbon nanotube layer, and the second peelable film to compact the fluffy carbon nanotubes, thereby obtaining a thermal conductive layer; removing the first peelable film, and disposing a first adhesive layer, a first dielectric layer, and a first circuit layer on a side of the thermal conductive layer away from the second peelable film; removing the second peelable film, and disposing a second adhesive layer, a second dielectric layer, and a second circuit layer on a side of the thermal conductive layer away from the first adhesive layer; mounting an electronic component on the first circuit layer.

A circuit board with improved heat dissipation function and a method for manufacturing the circuit board are provided. The circuit board includes a heat dissipation substrate, an insulating layer on the heat dissipation substrate, an electronic component, a base layer on the insulating layer, and a circuit layer on the base layer. The heat dissipation substrate includes a phase change structure and a heat conductive layer wrapping the phase change structure. The heat dissipation substrate defines a first through hole. The insulating layer defines a groove for receiving the electronic component. A second through hole is defined in the circuit layer, the base layer, and the insulating layer. A bottom of the second through hole corresponds to the heat conductive layer. A heat conductive portion is disposed in the second through hole.

Processes for laminating a graphene-coated printed circuit board (PCB) are disclosed. An example laminated PCB may include a lamination stack that may include an inner core, an adhesive layer, and at least one graphene-metal structure. Pressure and heat—which may be applied under vacuum or controlled gas atmosphere—may be applied to the lamination stack, after all materials have been placed. The graphene of the graphene-metal structure is designed to promote high frequency performance and heat management within the PCB.

A component carrier intermediate product includes a first electrically-insulating layer structure; an at least partially uncured and patterned second electrically-insulating layer structure having recesses, wherein the recesses are filled by an electrically-conductive material; and a component carrier section arranged on the at least partially uncured and patterned second electrically-insulating layer structure.

A printed wiring board includes resin insulating layers, and conductor layers including a conductor layer such that the conductor layer includes a conductor circuit and that the conductor circuit has a surface index X/Y in a range of 1.00 to 2.20 where X is a length of an outer circumference of cross section of the conductor circuit, and Y is a length of an outer circumference of a reference quadrangle in the cross section of the conductor circuit. The reference quadrangle has a first reference line drawn with reference to bottom of deepest recess on first side, a second reference line is drawn with reference to bottom of deepest recess on second side, a third reference line is drawn with reference to bottom of deepest recess on third side, and a fourth reference line is drawn with reference to bottom of deepest recess on fourth side of the outer circumference.

An integrated multilayer structure, includes a substrate film having a first side and an opposite second side. The substrate film includes electrically substantially insulating material, a circuit design including a number of electrically conductive areas of electrically conductive material on the first and/or second sides of the substrate film, and a connector including a number of electrically conductive contact elements. The connector is provided to the substrate film so that it extends to both the first and second sides of the substrate film and the number of electrically conductive contact elements connect to one or more of the conductive areas of the circuit design while being further configured to electrically couple to an external connecting element responsive to mating the external connecting element with the connector on the first or second side of or adjacent to the substrate film.

A method of the invention is a method of processing a wiring substrate that includes a configuration in which conductors locally disposed on a substrate are coated with resin having inorganic members that form a filler and are dispersed in an organic member, the method including: removing the organic member from a surface layer side of the resin by use of an ashing method; and removing, by use of a wet cleaning method, the inorganic members remaining the surface layer side of the resin from which the organic member is removed.