Patent ID: 8691704

Claim:
A method for forming a semiconductor construction, comprising: providing a substrate which includes a semiconductor material base, a plurality of electrical nodes supported by the base, a plurality of upwardly-opening containers of conductive material extending upwardly from the nodes, and supporting material between the containers; the supporting material including, in ascending order from the base, a first sacrificial oxide, a support extending between adjacent containers, a second sacrificial oxide, and a silicon nitride-containing layer; forming an opening through the silicon nitride-containing layer to the second sacrificial oxide; removing at least some of the second sacrificial oxide to expose at least a portion of the support; exposing the conductive material and support to an etch which penetrates through the support but does not remove at least the majority of the conductive material from the containers; the first sacrificial oxide being exposed through the penetrated support; removing the exposed first sacrificial oxide; and wherein the support consists of one or more compositions other than silicon nitride.