Patent ID: 9685375
Date: 2017-06-20
CPC Classifications: H01L

Claim:
1. A method of forming a through substrate interconnect sequentially comprising: forming a via into semiconductive material of a semiconductor substrate comprising first and second major sides, the via being formed from the first major side to a conductive bondpad which is more proximate to the second major side than the first major side, the conductive bondpad being exposed along an outermost surface of the second major side; applying a liquid dielectric over sidewalls of the via, over a base surface of the via comprising the conductive bondpad and over an elevationally outermost surface of the first major side, the applying being conducted in multiple separate applications of liquid dielectric; solidifying the liquid dielectric within the via and over the elevationally outermost surface of the first major side; removing all of the solidified dielectric from being over the elevationally outermost surface of the first major side and from over the base surface, the removing comprising anisotropic etching of the solidified dielectric material; and forming conductive material within the via over the solidified dielectric and forming a through substrate interconnect with the conductive material.