Title:
METHOD FOR FORMING RADIO FREQUENCY ANTENNA USING CONDUCTIVE INKS
Document Type and Number:
WIPO Patent Application WO2001069717
Kind Code:
A9
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.
Inventors:
OBERLE ROBERT R (US)
Application Number:
PCT/US2001/007897
Publication Date:
January 09, 2003
Filing Date:
March 13, 2001
Export Citation:
Assignee:
RCD TECHNOLOGY INC (US)
OBERLE ROBERT R (US)
OBERLE ROBERT R (US)
International Classes:
G06K19/077; H01Q1/22; H01Q1/36; H01Q1/38; H01Q9/27; H05K3/24; H05K1/09; H05K1/16; (IPC1-7): H01Q1/36
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