Patent ID: 9419054
Filing Date: 2016-08-16
CPC Classification: H01L

Claim Text:
1. A method for manufacturing a phase-change device, the method comprising: providing a substrate; forming a first dielectric layer on the substrate; forming a first electrode in the first dielectric layer; forming a phase-change material layer overlapping the first electrode; forming a protective material layer on the phase-change material layer; processing the phase-change material layer to form a phase-change member and processing the protective material layer to form a protective layer that contacts a top surface of the phase-change member; forming an etch-stop layer that covers a top surface of the protective layer and side surfaces of the phase-change member; forming an intermediary layer on the etch-stop layer; forming a second dielectric layer on the intermediary layer; and forming a second electrode that extends through the second dielectric layer, the intermediary layer, and the etch-stop layer, wherein the second electrode is electrically connected to the phase-change member via the protective layer without directly contacting the phase-change member.