Patent ID: 11950518
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 19:
20. The memory device of claim 19, wherein:
the upper sublayer and the lower sublayer are doped with a dopant comprising nitrogen (N), silicon (Si), scandium (Sc), gallium (Ga), carbon (C), or any combination thereof;
the phase-change layer has a crystallization temperature of at least 200° C.;
the upper sublayer comprises:
from about 15 at % to about 25 at % Sb; and
from about 35 at % to about 45 at % Te; and

the lower sublayer comprises:
from about 11 at % to about 21 at % Sb; and
from about 19 at % to about 29 at % Te.