US 5,773,880 A · Non-contact IC card having insulated exposed leads

Abstract

A non-contact IC card comprising a circuit board (10), an electronic circuit (9) mounted on the circuit board (10) and having a plurality of functions, a package (14) sealing the electronic circuit (9), a plurality of testing wire conductors (8) disposed on the circuit board (10) and connected at one end to the electronic circuit (9) and exposed at the other end from the package (14) for individually testing the functions of the electronic circuit (9). Each of the other end of the testing wire conductors (8) comprises a testing pad (11) disposed on the circuit board (10). The non-contact IC card may comprise insulating means electrically insulating the other end of the testing wire conductors or the testing pads (11) from outside. The present invention also resides in methods for manufacturing and testing the same.

Claims4

Dependent claims

A non-contact IC card comprising:

a circuit board having opposed first and second surfaces;
an electronic circuit mounted on the first surface of said circuit board and having a plurality of functions;
a resin package disposed on the first and second surfaces of said circuit board, covering said electronic circuit, and having an end surface transverse to and exposing an edge of said circuit board;
a plurality of testing wire conductors disposed on the first surface of said circuit board, each testing wire conductor being connected at a first end to said electronic circuit and being flush with and exposed at the end surface of said resin package;
and
insulating means for electrically insulating said second ends of said testing wire conductors.

3 more elements

Dependencies are inferred from the claim text.

Non-contact IC card having insulated exposed leads

Life of this patent

Non-contact IC card having insulated exposed leads

Life of this patent

Abstract

Claims4