Resistive random access memory having stable forming voltage
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United States of America Patent
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Jul 18, 2017
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app pub date -
Jun 9, 2015
filing date -
Feb 16, 2015
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Abstract
A resistive random access memory including a first electrode, a separating medium, a resistance changing layer and a second electrode is disclosed. The first electrode has a mounting face. The separating medium is arranged on the first electrode and forms a through hole. A part of the first electrode is not covered by the separating medium. The separating medium has a first dielectric. The resistance changing layer extends along the part of the first electrode as well as along an inner face and the second face of the separating medium. The resistance changing layer has a second dielectric having a dielectric constant larger than a dielectric constant of the first dielectric by 2 or less. The second electrode is arranged on the resistance changing layer. In this arrangement, the problem of unstable forming voltage of the conventional resistive random access memory can be solved.
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