A method of erasing a chalcogenide variable resistance memory cell is
provided. The chalcogenide variable resistance memory cell includes a
p-doped substrate with an n-well and a chalcogenide variable resistance
memory element. The method includes the step of applying to the variable
resistance memory element a voltage that is less than a fixed voltage of
the substrate. The applied voltage induces an erase current to flow from
the p-doped substrate through the n-well and through the variable
resistance memory element.