Method for manufacturing an electrical circuit board, electrical circuit board obtained by this method and smart card comprising such an electrical circuit board
AssigneeLinxens Holding
InventorsMara Coppola, Yannick De Maquille, Fabien Marcq
Life of this patent
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Abstract
The invention relates to a method for manufacturing an electrical circuit board. It includes the provision of a sheet of electrically conductive material and a layer of adhesive material. In order to have a color appear in spaces cut or etched into the sheet of electrically conductive material, the adhesive material includes a coloring agent. The invention also relates to an electrical circuit board for a smart card, which circuit board is manufactured using this method, and a smart card including such an electrical circuit board.
Claims12
Method for manufacturing an electrical circuit board designed to connect a chip to a conductive layer, the method comprising:
- the provision of a layer of dielectric material having two main sides for forming a substrate;
- the provision of a sheet of electrically conductive material, with two main sides;
- the production of an electrical circuit pattern in the sheet of electrically conductive material;
- the provision of a layer of adhesive material;
- the placing in contact of one of the main sides of the layer of electrically conductive material with the layer of adhesive material;
- and
- the lamination of the layer of dielectric material, the sheet of electrically conductive material and the layer of adhesive material,
- wherein a colouring agent is added to the adhesive material forming the layer of adhesive material, in order to form a layer of tinted adhesive material;
- wherein areas are cut or etched into the sheet of electrically conductive material between which the tinted adhesive is visible.
Electrical circuit board comprising a sheet of electrically conductive material, with two main sides, an electrical circuit pattern in the sheet of electrically conductive material, and a layer of adhesive material in contact with one of the main sides of the sheet of electrically conductive material,
- wherein a colouring agent is added to the adhesive material forming the layer of adhesive material, in order to form a layer of tinted adhesive material;
- further comprising areas cut or etched into the sheet of electrically conductive material between which the tinted adhesive is visible.
Dependencies are inferred from the claim text.