A method of obtaining contact resistance values of a semiconductor package, the semiconductor package includes a package substrate, a semiconductor chip mounted on the package substrate, a molding member disposed on the package substrate to surround the semiconductor chip, and an electromagnetic interference (EMI) shielding layer disposed on side surfaces of the package substrate and on the molding member. The package substrate includes a substrate body having a first surface and a second surface which are opposite to each other, first to fourth upper interconnection patterns disposed on the first surface of the substrate body in a first region of the package substrate and in contact with the EMI shielding layer, and an interconnection structure disposed in a second region of the package substrate.

An electronic device which includes a cover, a base coupled to the cover to create an enclosure, a conductive layer positioned between the cover and the base and arranged to reduce radiation from entering the enclosure, and a gasket positioned between the cover and the base to create a seal and positioned between the conductive layer and the enclosure.

An exemplary faraday bag with magnetic closure system includes an actuatable closure section defined between a shielding compartment and an access mouth. The closure section preferably includes a retention segment, a distal flap segment, and an intermediate flap segment therebetween. Base magnets are disposed within the retention segment and a first panel of the bag. Flap magnets are disposed within the distal flap segment and a second panel of the bag. When the closure section is in open configuration, the flap magnets are substantially out of attractive magnetic engagement with respective base magnets, and the shielding compartment is accessible from an ambient environment through the access mouth. When the closure section is in closed configuration, the flap and retention segments are folded with respect to one another, the flap magnets are in attractive magnetic engagement with respective base magnets, and the access mouth is thereby retained in an RF-sealed configuration.

A panel for an electromagnetic shield includes a light-weight, porous, electrically-conductive core layer of metallic foam having generally parallel opposed surfaces and a face sheet having rigidity properties superior to the rigidity properties of the core layer laminated to a surface of the core layer. Alternatively, a panel for a broadband electromagnetic shield includes a composite fiber-reinforced core having opposed surfaces and a layered electrically-conductive composite cover disposed on a surface of the core. The cover includes a first stratum of porous metal exhibiting pronounced low-frequency electromagnetic shielding properties and a second stratum of electrically-conductive elements exhibiting pronounced high-frequency electromagnetic shielding properties secured in an overlapping electrically-continuous relationship to the first stratum, the first stratum being a metallic lattice, and the electrically-conductive elements being a non-woven veil of electrically-nonconductive metal-coated fibers.

A shielding housing includes a receptacle configured to receive an electrical connector assembly including an electrical connector and a mating connector connected to the electrical connector. The receptacle is formed as a straight passage with an opening at each end of the straight passage. Either end of the straight passage receives one of the electrical connector and the mating connector along a mating axis coaxial with the straight passage.

A housing device for isolating electromagnetic interference emitting devices includes a structural frame. The structural frame of the housing device is for housing the electromagnetic interference emitting devices. The housing device further includes an electromagnetic interference isolating enclosure. The electromagnetic interference isolating enclosure of the housing device is non-structural. The electromagnetic interference isolating enclosure of the housing device is for encapsulating the structural frame.

A housing device for isolating electromagnetic interference emitting (EMI) devices includes an EMI isolating enclosure and a power manager. The power manager includes a filter mounted to a first portion of the EMI isolating enclosure. The power manager further includes a path, through the EMI isolating enclosure, that is isolated from an interior of the EMI isolating enclosure. The power manager further includes a power provider adapted to provide power to the filter by obtaining the power using the path.

A receptacle cage includes cage walls extending between a front end and a rear end including a top wall and side walls forming a module channel receiving a pluggable module. The receptacle cage includes a gasket at the front end having EMI springs electrically connected to the cage walls. Each EMI spring has a deflectable portion between a base and a distal end. The distal end is split with a first end beam and a second end beam at the distal end separated by a gap. The deflectable portion is spaced apart from the cage wall and is deflectable toward the cage wall. Each EMI spring has first and second side edges between the base and the distal end. The EMI springs are arranged side-by-side without gaps between adjacent EMI springs.

This invention provides an EMF/RF radiation shielding means including a conductive fabric enclosure functioned as a Faraday cage, a pair of flexible magnets for sealing the Faraday cage and a zipper to complete the closure and allow the two magnets to connect. The conductive fabric enclosure has a closable and openable top side, a left side, a right side and a closed bottom side. The conductive fabric enclosure is provided with two accommodations opposite to each other at its inner surface under and along the closable and openable top side. The pair of flexible magnets is respectively placed in the accommodations for connecting and sealing the Faraday cage. The zipper provides easy closing and opening to the enclosure, where the zipper closes it allows the two magnets to connect and when opening it allows easy access to the enclosure.

A data processing device includes an internal volume that is electromagnetic interference (EMI) isolated and an optical state detector. The optical state detector obtains electromagnetic radiation from the internal volume while the internal volume is EMI isolated and makes a determination that a device disposed in the internal volume has an optical state associated with the electromagnetic radiation.