Abstract:
The contact surfaces of metal contacts (7) of a smart card are at least partially provided with an electrically conductive layer (11) which is arranged on the contact zone (5) so that there is no short-circuit in relation to the contacts. The contact surfaces are therefore used not only as functional surfaces for contacting but also as information carriers corresponding to the external outline of the conductive layer (11).
Abstract:
In order to avoid damages to the integrated circuit (6) or the formation of cracks between the carrier (2) and the integrated circuit (6) when the carrier (2) is subjected to bending loads, a stiffening member (12) which does not touch the carrier (2) is introduced into the covering (10) of the integrated circuit (6). The stiffening member (12), for example a ring-shaped element, is laid into the covering tool of an appropriate plastic injection mould in such a way that plastic material can penetrate between the carrier (2) and the stiffening member (12).
Abstract:
The invention concerns a method of electrically connecting a semiconductor chip (1) to at least one contact surface by means of a thin wire whose first end is welded to the at least one contact surface and whose second end is connected to a contact area of the semiconductor chip (1). In order to establish a good connection between the wire and the contact area of the semiconductor chip (1), the second end of the wire is welded to a wedge-shaped metal part (5) which is disposed on the contact area of the semiconductor chip (1) and is conductively connected thereto. The metal part (5) is formed by a nailhead contact (6) whose free end is guided in a loop and connected to the nailhead by a wedge contact.
Abstract:
The object of the invention is to prevent delamination between the covering compound and the chip in the hot-melt assembly process. According to the invention, this object is achieved in that the heat flow introduced from the exterior into the chip module is controlled in a deliberate manner, either by a heat-insulating layer (9) interposed between the flexible carrier strip (2) of the chip module and the chip (3) bonded thereon, or by recesses (11) in the surface or layer of the metal contacts (10) such that heat is prevented from flowing from a hollow stamp (1) placed in the outer region of the metal contacts (10) in the direction of the centrally-mounted chip (3).
Abstract:
The description relates to a chip cover (6, 11) to cover completely or partially electrical, electronic, opto-electronic and/or electromechanical components of a chip (1, 8). The chip cover (6, 11) is characterized in that a pigmenting agent is added to the cover material. It is thus possible reliably to prevent unauthorised analyses and/or manipulations of the chip (1, 8).