A memory array with staggered local data/bit lines extending generally in
a first direction formed in an upper surface of a substrate and memory
cell access transistors extending generally upward and aligned generally
atop a corresponding local data/bit line. Selected columns of the memory
cell access transistors are sacrificed to define local data/bit access
transistors which are interconnected with overlying low resistance global
data/bit lines. The global data/bit lines provide selectable low
resistance paths between memory cells and sense amplifiers. The
sacrificed memory cell access transistors and staggered local data/bit
lines provide increased footprints for sense amplifiers to facilitate
increased circuit integration.