Board with at least one built-in electronic element

摘要

A card (1) including a lower layer (2) and a layer (4) of solidified binder (6) in which various elements are incorporated, in particular a coil (12) electrically coupled to an electronic unit (8). The coil (12) exhibits a lower planar surface (30), the inner face (20) of the lower layer (2) exhibiting a relief (18) defining sunken valleys traversing said inner face (20).