| 摘要 |
The invention relates to a method for producing a support element for an integrated circuit component which is to be included in a data carrier card. According to said method, conductor strips which have contact surfaces on both respective flat sides of the support element are etched out of a conductive layer. One side of said contact surface is connected to a respective connecting contact of the IC component and the other side serves as an external contact. The external contact surfaces and their corresponding conductor strips are coated with an additional electrically conductive protective layer. During a first step of the method, the electrically conductive layer (1) is coated with a liquid or pasty curable coating material (2) on one flat side on the contact surface points (2b) which have been provided in order to make the connecting contact. The remaining uncoated surface regions (3a, 3b, 3c) of said flat side are then coated with a liquid or pasty curable non-conductive material (3). In subsequent steps of the method, the conductor strips (7) and contact surfaces are etched out of electrically conductive layer (1) and are coated with the additional electrically conductive protective layer (5). In the final step of the method, the coating material (2) which has been applied only to one side is removed. The inventive method produces a support element which lacks the conventional support film usually used for the electrically conductive layer. This leads to a reduction in the height of the unit formed by the IC component and support element, despite a slightly thicker electrically conductive layer achieved by a corresponding material composition of the copper foil which is preferably used. |
