A structure (10) includes at least three conductors (111, 131, 151) that are opposed to each other, a penetration via (101) that penetrates the conductors (111, 131, 151), openings (112, 152) that are formed so as to surround the penetration via (101), and conductor elements (121, 141) that are located in layers other than the layers in which the conductors (111, 131, 151) are located and that are connected to the penetration via (101). The conductor element (121) larger than the opening (112) is opposed to the opening (112) and the conductor element (141) larger than the opening (152) is opposed to the opening (152).