A memory array with data/bit lines extending generally in a first
direction formed in an upper surface of a substrate and access
transistors extending generally upward and aligned generally atop a
corresponding data/bit line. The access transistors have a pillar
extending generally upward with a source region formed so as to be in
electrical communication with the corresponding data/bit line and a drain
region formed generally at an upper portion of the pillar and a surround
gate structure substantially completely encompassing the pillar in
lateral directions and extending substantially the entire vertical extent
of the pillar and word lines extending generally in a second direction
and in electrical contact with a corresponding surround gate structure at
least a first surface thereof such that bias voltage applied to a given
word line is communicated substantially uniformly in a laterally
symmetric extent about the corresponding pillar via the surround gate
structure.