Invention Grant
US08796852B2 3D integrated circuit structure and method for manufacturing the same 有权
3D集成电路结构及其制造方法

3D integrated circuit structure and method for manufacturing the same
Abstract:
A 3D integrated circuit structure comprises a first chip, wherein the first chip comprises: a substrate; a semiconductor device formed on the substrate and a dielectric layer formed on both the substrate and the semiconductor device; a conductive material layer formed within a through hole penetrating through both the substrate and the dielectric layer; a stress releasing layer surrounding the through hole; and a first interconnecting structure connecting the conductive material layer with the semiconductor device. By forming a stress releasing layer to partially release the stress caused by the conductive material in the via, the stress caused by mismatch of CTE between the conductive material and the semiconductor (for example, silicon) surrounding it can be reduced, thereby enhancing the performance of the semiconductor device and the corresponding 3D integrated circuit consisting of the semiconductor devices.
Information query
Patent Agency Ranking
0/0