Abstract:
A flexible wiring board includes a first flexible base material with a conductor pattern formed thereon, a second flexible base material disposed adjacent to the first flexible base material and an insulating layer covering the first flexible base material and the second flexible base material. The insulating layer exposes at least one portion of the first flexible base material. A conductor pattern is formed on the insulating layer, and a plating layer is provided connecting the conductor pattern of the first flexible base material and the conductor pattern on the insulating layer.
Abstract:
A printed wiring board includes an insulation layer having a surface, electrodes embedded in the insulation layer, a resistor formed on the surface of the insulation layer and electrically connected to the electrodes, and an external connection conductive pattern formed over the surface of the insulation layer and electrically connected to one or more electrodes. The insulation layer and the electrodes form a component-mounting surface on the surface of the insulation layer, the component-mounting surface is substantially leveled with the surface of the insulation layer and includes a resistor forming region on which the resistor is formed, and the external connection conductive pattern is separated by a space from the resistor.
Abstract:
A flex-rigid wiring board includes a flexible board including a flexible substrate and a conductor pattern formed over the flexible substrate, a non-flexible substrate disposed adjacent to the flexible board, an insulating layer including an inorganic material and covering the flexible board and the non-flexible substrate, the insulating layer exposing at least one portion of the flexible board, a conductor pattern formed on the insulating layer, and a plating layer connecting the conductor pattern of the flexible board and the conductor pattern on the insulating layer.
Abstract:
A multilayer printed wiring board comprises a plurality of insulating layers which is about 100 μm or less in thickness and a plurality of conductor circuits formed on the insulating layers. Each of a plurality of viaholes electrically connecting conductor circuits on the insulating layers to each other is formed tapered inwardly from the surface of the insulating layer and the viaholes are disposed opposite to each other to form a multistage stacked vias.