A DRAM cell in a substrate has a deep trench (DT) extending from a surface
of the substrate into the substrate, a word line (WL) formed on the
surface of the substrate adjacent the deep trench, and oxide (TTO)
disposed in a top portion of the trench and extending beyond the trench
in the direction of the word line. In this manner, when silicided, there
is oxide rather than silicon on the surface of the substrate in a gap
between the word line (WL) and a passing word line (PWL) disposed above
the deep trench.