A method and structure for forming conductive structure such as an electric circuit, or a portion of an electric circuit, can include the use of a thermal print head and a ribbon including a carrier and a metal layer. The thermal print head is used to print a first portion of the metal layer onto a sacrificial print medium. The first portion printed has a first pattern, where a second portion having a second pattern remains on the carrier. The first pattern is a reverse image at least a portion of the electric circuit, while the second pattern includes at least a portion of the electric circuit. The second portion having the second pattern can be transferred to a circuit substrate, then used as an electric circuit.

Disclosed herein are stairstep interposers with integrated conductive shields, and related assemblies and techniques. In some embodiments, an interposer may include: an insulating material having a stairstep structure with a first step surface, a second step surface, and a bottom surface to face a package substrate, wherein a first thickness of the insulating material between the first step surface and the bottom surface is greater than a second thickness of the insulating material between the second step surface and the bottom surface; a conductive signal pathway extending from the first step surface to the bottom surface; and a conductive shield disposed within the insulating material to shield the conductive signal pathway.

Methods, systems, and apparatus for fabricating a circuit board. The method includes fabricating, using an additive manufacturing device, a trace layer, a sacrificial layer, a rail layer and a lid. The method includes placing the sacrificial layer on the trace layer such that the raised traces protrude through corresponding openings of the sacrificial layer. The method includes depositing a conductive material on top of the sacrificial layer and the plurality of traces. The method includes removing the sacrificial layer from the trace layer and placing the rail layer on the trace layer such that the raised traces align with the corresponding openings of the rail layer. The method includes connecting one or more electrical components and melting a sealing sheet on top of the rail layer and the electrical components to reinforce connections and to provide protection. The method includes placing the lid on top of the sealing sheet.

A method of manufacturing a component carrier. The method includes forming a stack having at least one electrically insulating layer structure and/or at least one electrically conductive layer structure, and embedding a filament in the stack.

A method of manufacturing a component-embedded substrate includes a resist forming step in which a patterning resist is formed on a support, a patterning step in which a through hole extending through the resist is formed by performing patterning on the resist, a first-electrode forming step in which a through-via electrode is formed by filling the through hole with an electrode material, a resist removing step in which the resist is removed, a component placement step in which an electronic component is placed, a substrate forming step in which a resin substrate is formed by sealing the electronic component with a resin that includes a filler having a diameter larger than the surface roughness of a side surface of the through-via electrode, and a removing step in which the support is removed from the resin substrate. The first-electrode forming step is performed before the substrate forming step is performed.

A method of manufacturing a flexible electronic device is described. The method comprises arranging an electronic component on a temporary carrier, providing a flexible laminate comprising an adhesive layer, pressing the temporary carrier and the flexible laminate together with the adhesive layer facing the temporary carrier such that the electronic component is pushed into the adhesive layer, and removing the temporary carrier. Further, a corresponding flexible electronic device is described.

A circuit module includes a substrate on which a first electrode and a second electrode are provided, a first electronic component, and a first resin layer. The first electrode includes a first electrode base body and a first plating film. The second electrode and the first electronic component are covered with the first resin layer. The second electrode includes a second electrode base body, a metal column, whose one end is directly connected to the second electrode base body and another end is positioned in an inner side relative to an outer surface of the first resin layer, a second plating film with a cylindrical shape covering a side surface of a connection body of the second electrode base body and the metal column, and a covering portion connected to the other end of the metal column.

A printed circuit board including: an insulating material having a bump pad embedded in a first surface thereof; a first insulating layer stacked on the first surface of the insulating material and including an opening portion exposing the bump pad; a second insulating layer stacked on the first insulating layer and including a first cavity exposing the opening portion; and a bump disposed on the bump pad in the opening portion.

A display module and a manufacturing method of a display module are disclosed. The manufacturing method includes: forming a metal layer in the vias and on the array substrate thereby to cause the metal layer in the vias to form connecting terminals; providing a pattern treatment for the metal layer on the array substrate to form a plurality of metal wires and the metal wires disposed correspondingly to the vias; and cutting off a part of the array substrate disposed at an outer side of the vias to expose the connecting terminals at a sidewall of a remaining part of the array substrate.

Embodiments disclosed herein include a printed circuit board (PCB) with a non-uniform thickness and methods of fabricating such PCBs. In an embodiment, the PCB comprises a connector region with a top surface and a bottom surface, and a component region with a top surface and a bottom surface. In an embodiment, the bottom surface of the connector region is coplanar with the bottom surface of the component region. In an embodiment the top surface of the connector region is not coplanar with the top surface of the component region.