Patent ID: 7419852
Filing Date: 2008-09-02
Classification: B33Y,H01L

Abstract:
1. A method of fabricating a semiconductor device comprising: providing a semiconductor substrate comprising at least one semiconductor die having a back surface and an active surface bearing at least one semiconductor device thereon; optionally depositing a first dielectric layer on the back surface; forming at least one via extending from the back surface to a bond pad on the active surface; depositing a second dielectric layer to cover the first dielectric layer and an inner region of the at least one via; removing a portion of the second dielectric layer to expose a bottom portion of the bond pad; depositing an electrically conductive material within the at least one via; depositing a layer of conductive redistribution line precursor material on the second dielectric layer and on the electrically conductive material; forming at least one redistribution line from the layer of conductive redistribution line precursor material, the at least one redistribution line in electrical communication with the electrically conductive material; and depositing a third dielectric layer over the at least one redistribution line and a portion of the second dielectric layer;