Patent ID: 8829362
Filing Date: 2014-09-09
Classification: H01L,H05K

Abstract:
1. An electronic device comprising: a first ground conductor layer positioned at an underside of a first insulation layer; a second ground conductor layer positioned at an upper side of the first insulation layer; a second insulation layer positioned at an upper side of the second ground conductor layer; a first connection pattern formed on an inside wall of a first opening penetrating the first insulation layer and the second insulation layer and interconnecting the first ground conductor layer and the second ground conductor layer; a conductive member provided in the first opening and connected to the first ground conductor layer; an electronic element mounted on the member and grounded to the member; and a third insulation layer positioned at an underside of the first ground conductor layer and having a second opening whose opening dimension is larger than the first opening, the member being positioned in the first opening and the second opening, a part of the member positioned in the second opening having a larger diameter than the part of the member positioned in the first opening, and an upper surface of the part of the member positioned in the second opening being connected to the underside of the first ground conductor layer.