Method of forming a chalcogenide compound target

Plastic and nonmetallic article shaping or treating: processes – Outside of mold sintering or vitrifying of shaped inorganic...

Reexamination Certificate

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C501S087000, C501S093000, C252S516000

Reexamination Certificate

active

07727458

ABSTRACT:
In a method of forming a chalcogenide compound target, a first powder including germanium carbide or germanium is prepared, and a second powder including antimony carbide or antimony is prepared. A third powder including tellurium carbide or tellurium is prepared. A powder mixture is formed by mixing the first to the third powders. After a shaped is formed body by molding the powder mixture. The chalcogenide compound target is obtained by sintering the powder mixture. The chalcogenide compound target may include a chalcogenide compound that contains carbon and metal, or carbon, metal and nitrogen considering contents of carbon, metal and nitrogen, so that a phase-change material layer formed using the chalcogenide compound target may stable phase transition, enhanced crystallized temperature and increased resistance. A phase-change memory device including the phase-change material layer may have reduced set resistance and driving current while improving durability and sensing margin.

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