Chip card equipped with a loop antenna, and associated micromodule
AssigneeBull CP8
InventorsRoland Carpier, Christine Lauvernier, Alain Le Loc'h
Life of this patent
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Abstract
A chip card includes a body of electrically insulating layers, one of which carries an open loop antenna having two ends. The body is equipped with a cavity for housing a micromodule adapted for connection to the antenna by two terminals. The micromodule includes an insulating substrate carrying, on a first side, a semiconductor component, and on a second side, several electrical contact pads. Two of the contact pads are disposed in a strip running through a center region of the substrate. The terminals are connected to the two contact pads through the substrate, and the two pads are respectively connected to ends of the antenna.
Claims13
A chip card, comprising:
- an antenna;
- a micromodule connected to the antenna and including:
- (a) a substrate having first and second sides,
- (b) an integrated circuit chip disposed on the first side,
- (c) a first contact connected to one terminal end of the antenna,
- (d) a second contact connected to another terminal end of the antenna;
- and
- a body having a cavity, said micromodule located in said cavity chipside down,
- wherein said first and second contacts are disposed on the second side of said substrate, wherein said first contact is electrically connected to a terminal of said integrated circuit chip through a first hole in said substrate, and wherein said second contact is electrically connected to another terminal of said integrated circuit chip through a second hole in said substrate, and
- wherein said one terminal end and said another terminal end of the antenna are located in said cavity and are connected to said first and second contacts through respective third and fourth holes in said substrate.
A micromodule, comprising:
- an insulating substrate having first and second sides,
- an integrated circuit chip on the first side;
- a first contact connected to a terminal of said integrated circuit chip;
- a second contact connected to another terminal of said integrated circuit chip;
- and
- a third contact between said first contact and said second contact, where no connection exists between said third contact and said integrated circuit chip,
- wherein said first contact and said second contact are located on the second side of the insulating substrate, and wherein the insulating substrate has a first hole for allowing the first contact to be connected to an external circuit and a second hole for allowing the second contact to be connected to the external circuit.
A chip card comprising a basic body of electrically insulating layers, an open loop antenna having two ends on one of said insulating layers, said body having a cavity, a micromodule housed in said cavity and adapted to be connected to said open loop antenna by two terminals, said micromodule comprising:
- an electrically insulating substrate having a first and a second side;
- a semiconductor component;
- a plurality of electrical contact pads disposed on the second side, wherein at least two contact pads are disposed in a strip extending through a center region of the substrate, said terminals respectively being connected to two of said at least two contact pads, the two contact pads respectively being connected to the two ends of the antenna.
A micromodule connected by two terminals to an open loop antenna external of the micromodule having two ends, said micromodule comprising:
- an electrically insulating substrate having a first and a second side;
- a semiconductor component;
- on said second side, a plurality of electrical contact pads, wherein two contact pads are disposed in a strip passing through a center region of the substrate, said terminals respectively being connected to said two contact pads, the two contact pads adapted to be respectively connected to the two ends of the antenna.
Dependencies are inferred from the claim text.