A top cover and bottom cover made of an electrically conductive material that absorbs and reflects electromagnetic interference (EMI) signals are formed to fit without solder or welding as an EMI shield apparatus over EMI susceptible electronic circuitry on a printed circuit board. The EMI shield apparatus...http://www.google.es/patents/US5335147?utm_source=gb-gplus-sharePatente US5335147 - EMI shield apparatus and methods
