Plastic and nonmetallic article shaping or treating: processes – Outside of mold sintering or vitrifying of shaped inorganic...
Reexamination Certificate
2007-09-25
2010-06-01
Griffin, Steven P (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Outside of mold sintering or vitrifying of shaped inorganic...
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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Ha Yong-Ho
Ko Han-Bong
Kuh Bong-Jin
Lim Sang-Wook
Park Doo-Hwan
Griffin Steven P
Myers Bigel & Sibley Sajovec, PA
Samsung Electronics Co,. Ltd.
Snelting Erin
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