A phase change memory cell is disclosed. The phase change memory cell
includes a first thin film spacer and a second thin film spacer. The
first thin film spacer defines a sub-lithographic dimension and is
electrically coupled to a first electrode. The second thin film spacer
defines a sub-lithographic dimension and is electrically coupled between
a second electrode and the first thin film spacer. In this regard, the
phase change memory cell is formed at a boundary where the first thin
film spacer electrically contacts the second thin film spacer.