Electronic tag
AssigneeFriSense Limited
InventorMarco Mazza
Life of this patent
Estimating the term…
Abstract
A capacitive coupled radio frequency identification, RFID, tag and method for reading the tag, the tag comprising a semiconductor substrate having a first planar surface and a second planar surface distal from the first planar surface. A metallic pad formed on the first planar surface of the semiconductor substrate. A circuit formed on the semiconductor substrate and electrically connected to the metallic pad and the second planar surface of the semiconductor substrate, the circuit configured to respond to a radio frequency, RF, input signal by providing a data signal encoded by varying an impedance between the metallic pad and the second planar surface of the semiconductor substrate.
Claims22
A capacitive coupled radio frequency identification, RFID, tag comprising:
- a semiconductor substrate having a first planar surface and a second planar surface distal from the first planar surface;
- a metallic pad formed on the first planar surface of the semiconductor substrate;
- a circuit formed on the semiconductor substrate and electrically connected to the metallic pad and the second planar surface of the semiconductor substrate, the circuit configured to respond to a radio frequency, RF, input signal by providing a data signal encoded by varying an impedance between the metallic pad and the second planar surface of the semiconductor substrate;
- and
- a metallic plate, wherein the metallic plate extends beyond at least one edge of the metallic pad.
A system comprising:
- one or more capacitive coupled radio frequency identification, RFID, tag comprising:
- a semiconductor substrate having a first planar surface and a second planar surface distal from the first planar surface;
- a metallic pad formed on the first planar surface of the semiconductor substrate;
- a circuit formed on the semiconductor substrate and electrically connected to the metallic pad and the second planar surface of the semiconductor substrate, the circuit configured to respond to a radio frequency, RF, input signal by providing a data signal encoded by varying an impedance between the metallic pad and the second planar surface of the semiconductor substrate;
- and
- a metallic plate, wherein the metallic plate extends beyond at least one edge of the metallic pad;
- and
- a reader comprising an RF signal generator and decoder configured to decode the data signal.
Dependencies are inferred from the claim text.