Patent ID: 8659163
Filing Date: 2014-02-25
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a semiconductor substrate; an isolation layer of electrically insulating material in an upper portion of the semiconductor substrate; at least one pad layer disposed on the semiconductor substrate, wherein the semiconductor device has a pad region where part of the isolation layer resides, and a through electrode region where no portion of the isolation layer exists, each said at least one pad layer is a contiguous layer of electrically conductive material, each said at least one pad layer covers the entirety of the isolation layer in the pad region, each said at least one pad layer extends to and along the perimeter of the through electrode region, each said at least one pad layer has an opening therethrough in the through electrode region, and the at least one pad layer constitutes an electrically conductive pad of the device; and a through electrode at least part of which passes through the semiconductor substrate in the through electrode region directly under the opening.