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MULTILEVEL NONVOLATILE MEMORY CELL COMPRISING A RESISTIVITY- SWITCHING OXIDE OR NITRIDE AND AN ANTIFUSE
MULTILEVEL NONVOLATILE MEMORY CELL COMPRISING A RESISTIVITY- SWITCHING OXIDE OR NITRIDE AND AN ANTIFUSE
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机译:包含电阻率转换氧化物或氮化物和抗氧化剂的多级非易失性记忆细胞
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摘要
A nonvolatile memory cell includes a layer (118) of a resistivity-switching metal oxide or nitride compound, the metal oxide or nitride compound including one metal, and a dielectric rupture antifuse (117) formed in series. The dielectric rupture antifuse may be either in its initial, non-conductive state or a ruptured, conductive state. The resistivity-switching metal oxide or nitride layer can be in a higher- or lower-resistivity state. By using both the state of the resistivity- switching layer and the antifuse to store data, more than two bits can be stored per memory cell.
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