Patent ID: 8754499
Filing Date: 2014-06-17
Classification: H01L

Abstract:
1. A semiconductor chip comprising: a semiconductor on insulator structure having a frontside surface and a backside surface, the semiconductor on insulator structure including: a functional circuit in the semiconductor layer at the frontside surface, the functional circuit electrically isolated from the semiconductor substrate; a through silicon via (TSV) having a front-end surface, a back-end surface, and a lateral surface, the TSV being in the semiconductor layer and buried oxide layer, and the front-end surface of the TSV being substantially parallel to the frontside surface of the semiconductor layer; an antifuse material deposited between the back-end surface of the TSV and the semiconductor substrate, the antifuse material being configured to insulate the TSV from the semiconductor substrate; and a functional ground layer insulated from the semiconductor on insulator structure, and electrically coupled with the TSV and the functional circuit, wherein the functional ground layer is configured to conduct a program voltage to the TSV to cause a portion the antifuse material to migrate away from the TSV, thereby electrically connecting the functional circuit to the ground.