Patent ID: 7834462
Filing Date: 2010-11-16
Classification: H01L,H05K,Y02P

Abstract:
1. An electric device, comprising: a top surface and a bottom surface; a contact hole extending from the top surface through the device to the bottom surface; a conductive sealing element which seals the contact hole at or near the bottom surface, wherein the conductive sealing element is disposed only within a lower portion of the contact hole and at or above a plane coplanar with the bottom surface; a conductive connection which is coupled to the conductive sealing element and extends through the contact hole to the top surface, wherein the conductive sealing element and the conductive connection form an open space extending from an upper surface of the conductive sealing element to the top surface; and solder material which is provided on a bottom surface of the conductive sealing element, wherein the solder material physically contacts the bottom surface of the conductive sealing element.