Patent ID: 8629060
Filing Date: 2014-01-14
Classification: H01L

Abstract:
1. A method of forming a through substrate interconnect sequentially comprising: forming a via into a semiconductor substrate, the via extending into semiconductive material of the substrate; applying a liquid dielectric to line at least an elevationally outermost portion of sidewalls of the via relative a side of the substrate from which the via was initially formed; solidifying the liquid dielectric within the via; depositing a passivation dielectric over the side of the substrate after forming the via and to bridge over the via to leave a void space within the via inward of the passivation dielectric that bridges over the via, none of the bridging passivation dielectric being deposited to within the via; removing the passivation dielectric from bridging over the via; and forming conductive material within the via over the solidified dielectric and forming a through substrate interconnect with the conductive material.