The invention relates to a method for producing a circuit board element having at least one electronic component, which component has a connection side defined by electrical contacts or a conductive layer and is connected to a temporary carrier for positioning and embedded in an insulating material; the component is attached in a specified position directly to a plastic film as a temporary carrier, whereupon a composite layer having at least a carrier and an electrical conductor, preferably also having an insulating material, is attached on the side of the component opposite the plastic film, with the carrier facing away from the component, and thereafter the plastic film is removed; then the component is embedded in insulating material. After the embedding of the component in the insulating material, an additional composite layer is preferably attached to the component and the embedding of the component on the side opposite the first composite layer.

A FPCB includes a base layer defining at least one first through hole. A conductive paste block is formed in each first through hole. Each conductive paste block includes a first and a second end portion. The base layer has opposite surfaces, and a first conductive wiring layer is formed on each surface of the base layer. The first end portion at least protrudes from the base layer and is exposed from the first conductive wiring layer. An insulating layer and a second conductive wiring layer are formed on each first conductive wiring layer. At least one second through hole is defined in each insulating layer. The second through hole positioned near the first end portion extends to the first end portion and forms a recess. A conductive via is formed in each second through hole and the corresponding recess, and is electrically connected to the conductive paste block.

A method for forming a substrate structure for an electrical component includes placing an electrically insulating laminate on a substrate and applying hot pressure to the electrically insulating laminate by a heatable plate. An average temperature of a surface temperature distribution within a center area of the heatable plate is higher than 80 C. during applying the hot pressure. Further, an edge area of the heatable plate laterally surrounds the center area and a temperature of the heatable plate within the edge area decreases from the center area towards an edge of the heatable plate during applying the hot pressure. A temperature at a location located vertically above an edge of the substrate during applying the hot pressure is at least 5 C. lower than the average temperature of the surface temperature distribution within the center area.

A motor driving device includes a printed board on which a pattern is printed, and a resin board which is formed by molding a resin and on which no pattern is printed, and the printed board is provided on the resin board.

A process for forming a graphene circuit pattern on an object is described. A graphene layer is grown on a metal foil. A bonding layer is formed on a protective film and a surface of the bonding layer is roughened. The graphene layer is transferred onto the roughened surface of the bonding layer. The protective film is removed and the bonding layer is laminated to a first core dielectric substrate. The metal foil is etched away. Thereafter the graphene layer is etched using oxygen plasma etching to form graphene circuits on the first core dielectric substrate. The first core dielectric substrate having graphene circuits thereon is bonded together with a second core dielectric substrate wherein the graphene circuits are on a side facing the second core dielectric substrate wherein an air gap is left there between.

The present invention relates to a method for increasing adhesion strength between a surface of a copper, a copper alloy or a copper oxide and a surface of an organic material.

In an example, a dry film solder mask (DFSM) composite laminate material is disclosed. The DFSM composite laminate material includes a printed circuit board (PCB) laminate material, a cyclic compound chemically bonded to the PCB laminate material, and a DFSM material. The DFSM material is reversibly bonded to the PCB laminate material via the cyclic compound.

Implementations described and claimed herein provide thin film devices and methods of manufacturing and implanting the same. In one implementation, a shaped insulator is formed having an inner surface, an outer surface, and a profile shaped according to a selected dielectric use. A layer of conductive traces is fabricated on the inner surface of the shaped insulator using biocompatible metallization. An insulating layer is applied over the layer of conductive traces. An electrode array and a connection array are fabricated on the outer surface of the shaped insulator and/or the insulating layer, and the electrode array and the connection array are in electrical communication with the layer of conductive traces to form a flexible circuit. The implantable thin film device is formed from the flexible circuit according to the selected dialectic use.

A FPCB includes a base layer defining at least one first through hole. A conductive paste block is formed in each first through hole. Each conductive paste block includes a first and a second end portion. The base layer has opposite surfaces, and a first conductive wiring layer is formed on each surface of the base layer. The first end portion at least protrudes from the base layer and is exposed from the first conductive wiring layer. An insulating layer and a second conductive wiring layer are formed on each first conductive wiring layer. At least one second through hole is defined in each insulating layer. The second through hole positioned near the first end portion extends to the first end portion and forms a recess. A conductive via is formed in each second through hole and the corresponding recess, and is electrically connected to the conductive paste block.

A resin multilayer substrate includes a multilayer body including resin base-material layers laminated in a thickness direction and a circuit conductor therein, an end-surface ground conductor provided directly on each end surface of the multilayer body in the thickness direction, an adhesion layer on a side surface of the multilayer body, and a side-surface ground conductor on the adhesion layer. The end-surface and side-surface ground conductors are made of a ground conductor material with a coefficient of thermal expansion whose difference from a coefficient of thermal expansion of the resin base-material layers in a plane direction is smaller than a difference from a coefficient of thermal expansion of the resin base-material layers in the thickness direction. The adhesion layer is made of a material with higher adhesiveness to the side surface of the multilayer body than adhesiveness of the ground conductor material.