Shield and method for producing shield

A shield comprising two metal plates disposed to face each other, and a plate-shaped flexible member interposed between the two metal plates, characterized in that

• each of the two metal plates has a plurality of protrusion-depression structures, wherein, when the flexible member is disposed between the two metal plates, the protrusion-depression structures are positioned to form gaps of a width greater than the thickness of the flexible member between the two metal plates, wherein the first and second plates define a first cross section, wherein the first and second plates define a second cross section substantially at right angles from the first cross section;
• wherein the plurality of protrusion-depression structures of one plate correspond to the protrusion depression structures of the other plate, and the two metal plates are disposed to face each other so as to have a positional relationship that allows the protrusion-depression structures of the respective plates to fit into one another,
• wherein the plurality of protrusion-depression structures in both the first and second cross sections have a distance between an adjacent protrusion and depression that is the same, and the two metal plates are positioned to form gaps of a width greater than the thickness of the flexible member between a pair of the depression and the protrusion structures of the two metal plates, and
• unfilled spaces that are not filled with the flexible member are formed in the gaps between the two metal plates in both the first and second cross sections, wherein each of the first and second cross sections define alternating profiles (a) metal plate, insulating material, air gap, and metal plate, and (b) metal plate, air gap, insulating material, and metal plate.