Cicor Management Ag

Bruno Holl

Karin Ruess

Ernst Feurer

Alexander Kaiser

For the production of a flexible circuit configuration, which contains a layer sequence and a film connected thereto, for the creation of through contacts through the film up to terminal surfaces of the layer sequence, it is proposed that the film be connected unstructured to the layer sequence provided in a defined position on the substrate and then, while the composite of layer sequence and film remains on the substrate, perforations be created through the film up to terminal surfaces of a conductive layer of the layer sequence and contact metal be deposited in structured form on the film and in the perforations as through contacts.

Method for producing a flexible circuit configuration

For a method for producing a flexible circuit configuration in the form of a layer sequence of at least one insulating layer and at least one conductive layer, typically multiple insulating layers (N, N, N, NF) and multiple structured conductive layers (L, L), the layer sequence for the flexible circuit configuration is deposited on a rigid substrate so that the adhesion of the layer sequence with respect to the substrate is less in an inner area, in which at least one, preferably multiple flexible circuit configurations are created, than in an edge area (RB) which surrounds the inner area (ZB). An intermediate layer can advantageously be deposited for this purpose in the edge area, which causes a stronger adhesion of the layer sequence over the edge area than the inner area, which is not provided with an intermediate layer.

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Ulm, Germany

Bruno Holl