摘要:
According to various aspects, exemplary embodiments are disclosed of EMI shields, shielding assemblies, and related methods. In an exemplary embodiment, a shielding assembly generally includes one or more soft and/or flexible walls dispensed and formed on a substrate. Also disclosed are exemplary methods relating to providing shielding for one or more components on a substrate. In an exemplary embodiment, a method generally includes 3D printing material and/or dispensing a form-in-place material onto a substrate to thereby form one or more walls on the substrate that are disposed generally about the one or more components.
摘要:
A shielding apparatus useful in the attenuation of electronic noise or spurious electric signals is disclosed. In one embodiment, the shielding apparatus is encapsulated with an electronic component such as an integrated circuit. At least parts of the apparatus are formed using a selective metal deposition process (e.g., electroforming) that increases manufacturing efficiency and provides enhanced mechanical and structural features, as well as reduced cost. In another embodiment, the shielding apparatus comprises an array. Methods of manufacturing and utilizing the shielding apparatus are also disclosed.
摘要:
An EMI shield having at least one compartment for enclosing circuitry of an electronic device. The shield includes a first member formed of a first material such as a thin metal sheet or screen, or a metal-plated fabric or other electrically-conductive mesh, and a second member formed of a second material different than the first material which second material is an admixture of a plastic or other polymeric component and an electrically-conductive particulate filler component. The second member is integrally joined to the first member, and has at least one wall which extends from the first member and which together with the first member defines at least a portion of the compartment.
摘要:
The present invention provides printed circuit boards, EMI shields, and methods that provide an EMI absorbing material and an EMI reflecting material. In one embodiment, the EMI shield comprises a shield body and an EMI absorbing material coupled to the shield body.
摘要:
The present invention provide methods and devices for shielding an electronic component package. In one embodiment, an EMI shield is integrally formed within the package adjacent the die and grounded. The EMI shield may be a metallized shaped polymer layer and may be disposed fully within the package or it may extend out of the package.
摘要:
Eine Abschirmeinrichtung weist auf: Eine Abschirmkappe (20), die eine auf einer Leiterplatte (2) angeordnete elektronische Schaltung abdeckt, mit einem Rand (3), der von einer Bestückungsseite (4) der Leiterplatte durch einen Spalt (5) beabstandet ist; eine Kontakteinrichtung (6), die im Spalt angeordnet ist und eine elektrische Verbindung zwischen der Abschirmkappe und einer leitenden Kontur (7) auf der Leiterplatte herstellt, wobei am Rand der Abschirmkappe Laschen (8) angeformt sind, durch die die Abschirmkappe auf der Leiter-platte festgelegt und die Kontakteinrichtung unter elastischer Vorspannung gehalten ist. Die Kontakteinrichtung ist als ein im Spalt umlaufender, elastischer Dichtkörper (22) ausgebildet, der elektromagnetische Wellen absorbiert.
摘要:
An electromagnetic radiation interference mitigation shield (10) is provided for an electronic circuit component (E). The shield includes a body (12) formed from an electrically and thermally conductive composite material characterized by a volume resistivity ranging from about 0.1 to about 1,000 ohm-cm and a thermal conductivity ranging from about 10 x 10 -cal.-cm./sec.- cm. - DEG C to about 30 x 10 -cal.-cm./sec.-cm. - DEG C.
摘要:
An electromagnetic radiation interference mitigation shield (10) is provided for an electronic circuit component (E). The shield includes a body (12) formed from an electrically and thermally conductive composite material characterized by a volume resistivity ranging from about 0.1 to about 1,000 ohm-cm and a thermal conductivity ranging from about 10 x 10 -cal.-cm./sec.- cm. - DEG C to about 30 x 10 -cal.-cm./sec.-cm. - DEG C.
摘要:
An improved RF shielding appartus is disclosed. The apparatus includes a shield frame (25) having a nonconductive gasket (30) mounted to the edges thereof. A conductive layer (35) is deposited on the gasket (30) and shield frame (25) such that a substantially continuous layer surrounds the gasket (30) and shield frame (25).
摘要:
An EMI/RFI shielded cover plate assembly for an electronics enclosure (10) includes a cover plate (18; 20) having a major surface area (24) with outwardly-projecting walls or flanges defining interface locations with the underlying enclosure. A shielding compound (22) is provided across the entire cover plate (18; 20) including the walls (25) or flanges. The shielding compound (22) is disposed in a relatively thin layer across the major surface area (24) of the cover plate (18; 20) for EMI/RFI shielding, and in a thicker layer at the interface locations (25; 27) to provide a gasket-like response for environmentally sealing the cover plate (18; 20) assembly to the underlying enclosure and for thermal transfer and electrical continuity. The shielding compound (22) can be compression molded with the cover plate (18; 20). The shielded cover plate assembly provides a simple and economical method for providing an EMI/RFI shield and a gasket from a single shielding compound.