US Patent 7903431 Electromagnetic interference shielding apparatus

A shielding apparatus is disclosed suitable for use in providing electromagnetic interference shielding for an electrical component on a substrate. The shielding apparatus includes a frame that is at least partially drawn in construction and is configured for installation to the substrate. Side walls of the frame generally surround the electrical component, and a cover is attachable to the frame for substantially covering the electrical component. The cover includes an upper surface having an inverted embossment formed therein, and a cover member extending generally downwardly from the upper surface adjacent the inverted embossment. The inverted embossment and cover member define a guide for guiding and receiving at least part of the frame into the guide when the cover is attached to the frame. The guide is configured to help facilitate and generally hold the cover in electrical contact with the frame when the cover is attached to the frame.