Patent ID: 6800504
Filing Date: 2004-10-05
Classification: C23C,H01L

Abstract:
A method of forming a chalcogenide memory element having a first electrode, a second electrode, and a doped chalcogenide layer interposed between the first electrode and the second electrode, the method comprising:forming a chalcogenide layer on the first electrode; sputtering metal onto the chalcogenide layer using a first plasma containing at least one component gas selected from the group consisting of neon and helium, thereby forming the doped chalcogenide layer, wherein the first plasma emits a UV component sufficient to induce diffusion of the sputtered metal into the chalcogenide layer; and sputtering metal onto the doped chalcogenide layer using a second plasma containing at least one component gas having an atomic weight higher than an atomic weight of neon, thereby forming the second electrode.