IC card and manufacturing method of the same
AssigneeSony Corporation
InventorsIsao Takahashi, Junichi Sawada
Life of this patent
Estimating the term…
Abstract
An IC card formed by sandwiching a circuit board formed with an antenna pattern and an IC chip mounted on the circuit board with a plurality of card constituent sheets. Ferrite beads to absorb and remove noises (unnecessary radiation energy) input to and output from the IC chip are mounted on wiring sections interconnecting the antenna pattern and IC chip.
Claims20
A portable phone having a contact-less IC card with reader-writer functionality, the contact-less IC card comprising:
- a circuit board;
- an IC chip mounted on the circuit board;
- an antenna wiring on the circuit board;
- a noise absorber on the circuit board to absorb and remove noise input to and output from a communication operation of the portable phone;
- and
- a pair of card-shaped sheets sandwiching the circuit board therebetween,
- wherein the noise absorber is a magnetic layer.
A method of manufacturing a portable phone having a contact-less IC card with reader-writer functionality, the method comprising:
- mounting an IC chip on a circuit board on which antenna wiring is formed;
- sandwiching the circuit board and the IC chip between a plurality of card-shaped sheets;
- and
- disposing a noise absorber on the circuit board to absorb and remove a noise input to and output from a communication operation of the portable phone,
- wherein the noise absorber passes through the circuit board so as to at least partially surround a wiring area on the circuit board.
A portable phone having a contact-less IC card with reader-writer functionality, the contact-less IC card comprising:
- a circuit board with antenna wiring;
- an IC chip mounted on the circuit board and connected to the antenna wiring via a connector;
- a noise absorber chip-type ferrite bead positioned on the connector to absorb and remove interference from a communication operation of the portable phone;
- an inner core sheet positioned on a side of the circuit board having an aperture to accommodate an extension from the circuit board;
- and
- an outer core sheet to close a side of the aperture opposite from the circuit board.
Dependencies are inferred from the claim text.