Patent ID: 7285814

Claim:
Dynamic random access memory circuitry comprising: a plurality of spaced conductive structures comprising conductive material which is received within and projecting outwardly from insulative silicon oxide-comprising material; a plurality of isolated insulative collars received about the conductive material of the spaced conductive structures and over the insulative silicon oxide-comprising material, the insulative collars comprising an insulative nitride; an insulative material different from the collar material and received over the spaced conductive structures and insulative collars; and a plurality of conductive contacts formed to the conductive material of the spaced conductive structures through the insulative material which is different from the collar material, wherein at least some of the isolated insulative collars individually collar conductive material of multiple spaced conductive structures with material of said at least some of the isolated insulative collars being received within spaces between said multiple spaced conductive structures.