Patent ID: 6995455
Filing Date: 2006-02-07
Classification: H01L

Abstract:
1. A semiconductor device, comprising: first and second semiconductor substrates having respective opposite surfaces disposed in opposition to each other; a first semiconductor element formed in said opposite surface of said first semiconductor substrate and comprised of a first semiconductor circuit and a first electrode; a second semiconductor element formed in said opposite surface of said second semiconductor substrate and comprised of a second semiconductor circuit and a second electrode; a first wiring conductor layer formed of an electrically conductive material and interposed between said first and second electrodes; and a through electrode extending through said first semiconductor substrate and connected to said first and second electrodes through the medium of said first wiring conductor layer, wherein said second semiconductor substrate is disposed above said first semiconductor substrate and disposed on a lateral side of said through electrode, being distanced therefrom; wherein lateral surface of said through electrode projecting from said first semiconductor substrate and lateral surface of said second semiconductor element are coated with an insulation material layer; wherein said through electrode has one end portion exposed from a back surface of said first semiconductor substrate to serve as a first external terminal; and wherein said through electrode has the other end portion positioned at a same height as a back surface of said second semiconductor substrate and exposed from said insulation material layer to serve as a second external tenninal.