A conductive via for connecting between a digit line and one side of the magnetic device is positioned beneath, and aligned with, each magnetic device. Each of the rigid frames includes a first vertical support, a second vertical support substantially parallel to the first vertical support, and a lateral rigid frame support extending perpendicularly at least from the first vertical support to the second vertical support. For example, tiles are assigned to bins depending at least partially on orientation of the tiles and on proximity of the tiles to reference tracks having similar orientations. Information is associated with each one of the cells. By connecting these SMF’s and L-RDF’s, the dispersion value in the abovementioned preset wavelength band of the optical transmission line as a whole is made greater than or equal to 1 psnmkm and less than or equal to 1 psnmkm.