FIGS. 5A and 5B are explanatory diagrams of a formation of a gel film by a die coating method for the first embodiment. FIG. 5A is a diagram viewed from the top of the substrate 10, and FIG. 5B is a diagram viewed from the side of the substrate 10.
As illustrated in FIG. 5, the coating solution 35a for forming a superconducting region and the coating solution 35b for forming a non-superconducting region are applied to the substrate 10 from the solution container 33. As illustrated in FIG. 5A, the coating solution 35a for forming a superconducting region and the coating solution 35b for forming a non-superconducting region are applied onto the substrate 10 so that the coating solution 35b for a non-superconducting region is sandwiched between the coating solutions 35a for a superconducting region and the coating solution 35a for forming a superconducting region and the coating solution 35b for forming a non-superconducting region are in contact with each other.
The substrate 10 moves in the first direction with respect to the solution container 33. The coating solution 35a for forming a superconducting region and the coating solution 35b for forming a non-superconducting region applied onto the substrate 10 extend in the first direction.
