Patent ID: 8659105

Claim:
A wiring substrate, comprising: a first insulating substrate comprising a through hole formed in a center portion thereof, a connection electrode to which a connection terminal of an imaging element is connected, being arranged around the through hole on a lower surface of the first insulating substrate, and a first wiring conductor comprising one end connected to the connection electrode and the other end led out to an outer peripheral portion on the lower surface of the first insulating substrate; and a second insulating substrate comprising a plurality of outside terminals arranged on a lower surface of the second insulating substrate, and a second wiring conductor comprising one end connected to the outside terminals and the other end led out to an outer peripheral portion on an upper surface of the second insulating substrate, wherein at least one of the lower surface of the first insulating substrate and the upper surface of the second insulating substrate comprises a recess portion, the through hole being located on an inner side of the recess portion in a plan view, and an outer peripheral portion of the first insulating substrate being joined to an outer peripheral portion of the second insulating substrate so that the first wiring conductor and the second wiring conductor are electrically connected to each other, wherein a size of the first insulating substrate and a size of the second insulating substrate are different in a plan view, and wherein the first insulating substrate and the second insulating substrate are joined together with a joining member, the joining member being arranged at an outer peripheral portion of the larger insulating substrate and an outer peripheral portion and a lateral surface of the smaller insulating substrate.