Patent ID: 7534713

Claim:
A method of fabricating a phase-changeable memory cell, comprising: providing a semiconductor substrate having a substantially planar surface; forming at least one electrode in a dielectric layer with a side wall that is not parallel to one or more of the substantially planar surface and a surface of the at least one electrode; forming at least one chalcogenide alloy structure in an opening of the dielectric layer by covering a bottom and sidewall of the opening with chalcogenide alloy material to define a recess within the opening, such that the recess being enclosed by the chalcogenide alloy material at a bottom and sidewall of the recess, wherein upon formation of both the at least one electrode and the at least one chalcogenide alloy structure the side wall of the electrode is electrically coupled to the at least one chalcogenide alloy structure; and refilling the recess with conductive material to form a conductive address.