Patent ID: 8703278
Filing Date: 2014-04-22
Classification: H05K,Y10T

Abstract:
1. A light weight printed wiring board (PWB), comprising: a substrate comprising a plurality of layers extending generally parallel to a plane, the substrate defining an upper surface and a lower surface, wherein at least the upper surface comprises one or more component mounting locations that are adapted to mount a component, the substrate comprising one or more lighter weight regions in which non-critical regions of the substrate have been selectively removed to reduce the overall weight of the substrate, wherein the one or more lighter weight regions are situated between the upper surface and the lower surface of the substrate, but do not extend through the upper surface and do not extend through the lower surface of the substrate, wherein portions of the substrate within the one or more lighter weight regions define at least one structure between the lower surface and the upper surface of the substrate, and wherein the one or more lighter weight regions are filled with a solid comprising a lighter weight than the selectively removed non-critical regions of the substrate.