Patent ID: 8659105
Filing Date: 2014-02-25
Classification: H01L

Abstract:
1. A wiring substrate, comprising: a first insulating substrate comprising a second insulating substrate comprising 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.