Alternatively or in addition, the attachment in movable manner may include a mechanical attachment arrangement, the mechanical attachment arrangement being arranged to prevent or at least hinder or resist detachment of the movable member with respect to the functional multilayer structure. For example, the mechanical attachment arrangement may comprise a frame adapted to at least partly confine the movable member between the frame and the functional multilayer structure so that the movable member is movable in a space between the frame and the functional multilayer structure.
In various embodiments, the functional multilayer structure may comprise a groove, a hole, or a through-hole, and a part of the movable member comprising the at least one detection portion may be adapted to extend into and arranged movable in the groove, the hole, or the through-hole. Furthermore, optionally, the interface assembly may comprise a shape interlocking arrangement between a portion of the groove, the hole, or the through-hole, and the movable member so as to prevent or at least hinder or resist detachment of the movable member with respect to the functional multilayer structure. The groove or the hole may, for example, define a concave shape into the multilayer structure.
In some embodiments, the movable member may be movable in a translational manner, such as linearly or non-linearly, relative to the functional multilayer structure, optionally in the groove, the hole, or the through-hole.
Alternatively or in addition, the movable member may be movable in a rotational manner relative to the functional multilayer structure, optionally in the groove, the hole, or the through-hole.