Monolithic integrated circuit and antenna coil structure compris

Details Monolithic integrated circuit and antenna coil structure compris Monolithic integrated circuit and antenna coil structure compris

1998-03-10

2000-10-03

Wong, Don

Communications: radio wave antennas

Antennas

Spiral or helical type

343700MS, 235449, 235493, G06K 1907, H01Q 132

Patent

active

061279897

ABSTRACT:
The present invention concerns an integrated circuit structure (1) formed in a substrate (2) and including at least one integrated circuit element (3, 4), an antenna coil (5) capable of transmitting and/or receiving data, and associated with said integrated circuit element(s) (3, 4); and a metal protective ring (20) situated at the periphery of the integrated circuit structure (1). The present invention is characterised in that said protective ring (20) comprises at least one ohmic interruption, so that it does not form a closed circuit on itself. The integrated circuit structure (1) according to the invention is improved in that the operation of the antenna coil (5) is made insensitive to the presence of the protective ring (20).

REFERENCES:
patent: 4237438 (1980-12-01), McCoy
patent: 4724427 (1988-02-01), Carroll
patent: 4999742 (1991-03-01), Stampfli
patent: 5198647 (1993-03-01), Mizuta
patent: 5565876 (1996-10-01), Murakami et al.

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