摘要:
The present invention includes an improved RFID antennae (14) and tags (18) and methods of manufacturing the RFID antennas. The RFID tags (18) of the present invention include a substrate that comprises an antenna assembly. A radiofrequency integrated circuit is in electrical communication with a portion of the antenna assembly. The RFID tag may include a structure, such as a lid element, that clamps and/or compresses the radiofrequency integrated circuit into contact with the antenna assembly, without the need for a conductive adhesive. In some embodiments, the antenna assembly is vacuum metallized or otherwise applied onto the substrate through patterned openings in a mask, such as a patterned masking cliche or a patterned polymer layer.
摘要:
The present invention provides shielded printed circuit boards (10) and electronic devices (12). The printed circuit board (10) may comprise an internal network of grounded conductive elements (16) that are coupleable to an EMI shield (14) that is mounted on the printed circuit board (10). The network of grounded conductive elements (16) are coupleable to a grounded layer and to the EMI shield (14) and provides improved EMI shielding through the volume of the printed circuit board (10) below an electronic component (12) mounted on the printed circuit board (10).
摘要:
The present invention provides electronic devices, kits, and connector assemblies for coupling an EMI shield to a ground trace. In one embodiment, the present invention provides an electronic device comprising a printed circuit board and an EMI shield that has a flange around at least a portion of a perimeter of the EMI shield. One or more connectors coupled to the flange removably contact the flange to a ground trace of the printed circuit board.
摘要:
An RFID smart label includes a plurality of layers, wherein one of the plurality of layers is an RFID inlay with a depression/recession region for holding the RFID chip/strap so that it does not extend above the surface of the antenna. The depressed/recessed region can have substantially the same depth as the thickness of the RFID chip/strap. High speed printing processes are then used to economically print labels on the RFID inlays having the RFID chip/strap embedded because there are no bumps to impede the printing process. A method for reliably and economically manufacturing a radiofrequency identification (RFID) antenna includes impressing a pattern on a surface of a substrate to make a first portion of the substrate having a positive image of the RFID antenna and a second portion of the substrate having a negative image of the RFID antenna, applying a release agent on the second portion of the substrate having a negative image of the RFID antenna, depositing a metallization layer over the surface of the substrate, applying a solvent over the metallization layer, and scraping the surface of the substrate causing mechanical interruption of the metallization layer. The release agent can be masking materials containing TiO 2 or oil.
摘要:
The present invention provides in-line equipment and methods for manufacturing an EMI/RFI shield that is integrated formed in a formable sheet. The EMI/RFI shield may comprise a shaped thermoform shell that has one or more conductive layers applied to one or more surfaces. The EMI/RFI shield may be integrally formed with the formable sheet via attachment tabs that are positioned alongone or more edges of the EMI/RFI shield.
摘要:
an electronic device includes a printed circuit board (14) and an EMI shield (10) that has a flange around at least a portion of a perimeter of the EMI shield. One ore more connecotrs (20) coupled to the flange remobvably contact the flange to a ground trace (12) of the printed circuit board
摘要:
The present invention provide methods and devices for shielding an electronic component package. In one embodiment, an EMI shield (42) is integrally formed within the package adjacent the die (12) and grounded. The EMI shield (42) may be a metallized shaped polymer layer (34) and may be disposed fully within the package or it may extend out of the package.
摘要:
The present invention provides shielded printed circuit boards and electronic devices. The printed circuit board may comprise an internal network of grounded conductive elements that are coupleable to an EMI shield that is mounted on the printed circuit board. The network of grounded conductive elements are coupleable to a grounded layer and to the EMI shield and provides improved EMI shielding through the volume of the printed circuit board below an electronic component mounted on the printed circuit board.