A phase change memory cell includes first and second electrodes having
generally coplanar surfaces spaced apart by a gap and a phase change
bridge electrically coupling the first and second electrodes. The phase
change bridge may extend over the generally coplanar surfaces and across
the gap. The phase change bridge has a higher transition temperature
bridge portion and a lower transition temperature portion. The lower
transition temperature portion comprises a phase change region which can
be transitioned from generally crystalline to generally amorphous states
at a lower temperature than the higher transition temperature portion. A
method for making a phase change memory cell is also disclosed.