Patent ID: 7295083
Filing Date: 2007-11-13
Classification: H05K

Abstract:
1. An electromagnetic shield structure for electromagnetically shielding a target substrate mounted with at least one electromagnetic noise generating circuit element, the target substrate having a first surface, a second surface opposite to the first surface, and a plurality of side surfaces, comprising: a metal case that covers the first surface and the side surfaces of the target substrate; a base substrate that opposes the second surface, wherein the metal case rests on the base substrate, a first ground plane, that is electrically connected to the metal case, is embedded in the base substrate and is parallel to main surfaces of the base substrate; connectors provided on a top surface of the base substrate, the connectors mount the target substrate above the top surface of the base substrate, wherein the connectors are a means for input/output of power and signals from the base substrate to the target substrate; and a second ground plane embedded in the target substrate.