Abstract:
An RFID device can comprise a flexible substrate and an RFID tag formed on the flexible substrate. The flexible substrate can be folded over to encapsulate and protect the RFID tag.
Abstract:
An RFID chip can have an RFID circuit having first and second initial bond pads and conductive paths on the RFID chip connecting the first and second bond pads to the different sides of the chip. The conductive paths including a first side connector on a first side of the chip electrically connected to the first bond pad and a second side connector on a second side of the chip connected to the second bond pad. The first and second side connectors can cover at least half of the first and second side length respectively.
Abstract:
A method of constructing an RFID unit can include using a protective layer to hold an integrated circuit chip module to a substrate layer with an antenna unit while a conductive adhesive has not yet fully set.
Abstract:
A method of constructing an RFID unit can include using a protective layer to hold an integrated circuit chip module to a substrate layer with an antenna unit while a conductive adhesive has not yet fully set.
Abstract:
An electroless metallization catalyst layer can be formed in a RFID antenna pattern. A first metallic layer can be deposited over top of the electroless metallization catalyst layer. An electrical short layer connecting regions of the metallic layer can be formed. A portion of electrical short layer can be covered with a non-conductive layer. The first metallic layer can be electroplated with a second metallic layer.
Abstract:
A metalized circuit suitable for application as a radio frequency antenna is produced by forming an antenna coil pattern on a flexible substrate (52). The antenna coil pattern is formed using a conductive ink (42) which is patterned on the substrate. The conductive ink is cured and an electrical-short layer (46) is formed across the coils of the conductive ink pattern. An insulating layer (56) is formed over top of the electrical-short layer, a metal layer (58) electroplated on top of the conductive layer, and then the electrical-short layer is removed. The use of the electrical-short layer during the electroplating allows for the voltage at the different points on the conductive ink layer to be relatively similar, so that a uniform electroplate layer is formed on top of the conductive ink layer. This results in a better quality radio frequency antenna at a reduced cost.
Abstract:
A metalized circuit suitable for application as a radio frequency antenna is produced by forming an antenna coil pattern on a flexible substrate. The antenna coil pattern is formed using a conductive ink which is patterned on the substrate. The conductive ink is cured and an electrical-short layer is formed across the coils of the conductive ink pattern. An insulating layer is formed over top of the electrical-short layer, a metal layer electroplated on top of the conductive layer, and then the electrical-short layer is removed. The use of the electrical-short layer during the electroplating allows for the voltage at the different points on the conductive ink layer to be relatively similar, so that a uniform electroplate layer is formed on top of the conductive ink layer. This results in a better quality radio frequency antenna at a reduced cost.
Abstract:
A metalized circuit suitable for application as a radio frequency antenna is produced by forming an antenna coil pattern on a flexible substrate (52). The antenna coil pattern is formed using a conductive ink (42) which is patterned on the substrate. The conductive ink is cured and an electrical-short layer (46) is formed across the coils of the conductive ink pattern. An insulating layer (56) is formed over top of the electrical-short layer, a metal layer (58) electroplated on top of the conductive layer, and then the electrical-short layer is removed. The use of the electrical-short layer during the electroplating allows for the voltage at the different points on the conductive ink layer to be relatively similar, so that a uniform electroplate layer is formed on top of the conductive ink layer. This results in a better quality radio frequency antenna at a reduced cost.
Abstract:
A metalized circuit suitable for application as a radio frequency antenna is produced by forming an antenna coil pattern on a flexible substrate (52). The antenna coil pattern is formed using a conductive ink (42) which is patterned on the substrate. The conductive ink is cured and an electrical-short layer (46) is formed across the coils of the conductive ink pattern. An insulating layer (56) is formed over top of the electrical-short layer, a metal layer (58) electroplated on top of the conductive layer, and then the electrical-short layer is removed. The use of the electrical-short layer during the electroplating allows for the voltage at the different points on the conductive ink layer to be relatively similar, so that a uniform electroplate layer is formed on top of the conductive ink layer. This results in a better quality radio frequency antenna at a reduced cost.