Method for making contact with electrical contact with electrical contact surfaces of substrate and device with substrate having electrical contact surfaces

A device, comprising:

• a substrate having a surface on which are arranged electrical contact surfaces, and height differences of the surface being of up to 500 μm;
• a film of electrically insulating material laminated by vacuum onto the surface, fitting the surface tightly and adhering to the surface despite the height difference as high as 500 μm, said film having windows corresponding to the electrical contact surfaces;
• and
• a layer of electrically conducting material in planar contact with the electrical contact surfaces through the windows in said film.

A method for making contact with at least one electrically conducting layer of a plurality of layers, comprising:

• depositing a plurality of layers directly on an upper surface of an insulating base layer, the layers including at least one electrically conducting layer, and covering partially the insulating base layer and other layers of the plurality of layers;
• laminating a film covering and adhering tightly to upper surfaces of different layers of the plurality of layers having a variation in height as high as 500 μm, and an exposed portion of the insulating base layer, and preventing planarization;
• forming at least one window in the film to expose an upper surface of each of the at least one electrically conducting layer;
• and
• making a planar contact with the exposed upper surface of each of the at least one electrically conducting layer.