Structure and structure with electronic component

A structure comprising:

• a main substrate including a first surface and a second surface facing a side opposite to the first surface;
• a power supply module on the main substrate;
• a socket in the main substrate;
• and
• one or more power supply wirings and one or more signal wirings that extend in a thickness direction of the main substrate and penetrate the socket;
• wherein
• each of the one or more power supply wirings has a first end on the first surface side and a second end on a side opposite to the first end;
• each of the one or more signal wirings includes a third end to be electrically connected to an electronic component and a fourth end on a side opposite to the third end;
• the fourth end is electrically connected to a conductor pattern on the first surface;
• the main substrate includes a through hole that connects the first surface to the second surface;
• the power supply module is provided on the second surface;
• the socket is provided on the first surface and includes a main body portion along the first surface and a projecting portion projecting from the main body portion and inserted into the through hole;
• the one or more power supply wirings penetrate the projecting portion;
• the one or more power supply wirings include a first power supply wiring having a length longer than a length of a first signal wiring included in the one or more signal wirings;
• the socket includes a power supply module receiving portion to receive the power supply module;
• the power supply module is in the power supply module receiving portion;
• the second end is connected to the power supply module in the power supply module receiving portion;
• and
• the one or more power supply wirings are thicker than the one or more signal wirings.