Communications: radio wave antennas – Antennas – Loop type
Reexamination Certificate
2007-06-12
2007-06-12
Wimer, Michael C. (Department: 2821)
Communications: radio wave antennas
Antennas
Loop type
C343S720000, C343S895000, C340S572700
Reexamination Certificate
active
10651683
ABSTRACT:
An apparatus and method for attaching antennae to RFID tags is disclosed. Included is the use of RFID tags having a symmetrical interconnect system for attaching one or more antennae, such that virtually any rotational orientation of the RFID tag will result in a successful antennae attachment. Two oversized and “L” shaped gold-bumped poles can be arranged on the same side of a chip in an opposing fashion, such that at least one axis of symmetry is formed. Accordingly, virtually all rotational orientations of the chip are then acceptable when attaching a pair of opposing pole antenna leads. Alternatively, a pair of poles can be located on opposing chip surfaces, such that antenna substrates can attach to both the top and bottom of the chip to form a product “sandwich,” whereby the rotational orientation of the chip is irrelevant at an antenna attachment step.
REFERENCES:
patent: 6100804 (2000-08-01), Brady et al.
patent: 6249227 (2001-06-01), Brady et al.
patent: 6509217 (2003-01-01), Reddy
patent: 1167068 (2002-01-01), None
patent: WO/03/063211 (2003-07-01), None
Han Cheol Hyun
Kelkar Nikhil V.
Patil Sadanand R.
Beyer & Weaver, LLP
National Semiconductor Corporation
Wimer Michael C.
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