Patent ID: 8264077
Filing Date: 2012-09-11
Classification: H01L

Abstract:
1. An integrated circuit structure comprising: a semiconductor substrate comprising a front side and a backside; a through-silicon via (TSV) penetrating the semiconductor substrate, the TSV comprising a back end extending to the backside of the semiconductor substrate; a redistribution line (RDL) over the backside of the semiconductor substrate and connected to the back end of the TSV; a silicide layer over and adjoining the RDL; an active circuit on the front side of the semiconductor substrate, wherein the active circuit and the RDL are on opposite sides of the semiconductor substrate; a passivation layer over the RDL; and an opening in the passivation layer, and directly over a portion of the RDL, wherein the opening penetrates through the silicide layer, and wherein the portion of the RDL is exposed through the opening.