Resistive Random Access Memory
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United States of America Patent
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app pub date -
Dec 3, 2015
filing date -
Oct 26, 2015
priority date (Note) -
Abandoned
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Abstract
A resistive random access memory overcomes the difficulty in reducing the forming voltage thereof. The resistive random access memory includes a first electrode layer, a separating portion, a lateral wall portion, an oxygen-containing rheostatic layer and a second electrode layer. The separating portion is arranged on the first electrode layer and forms a through-hole. The first electrode layer is exposed via the through-hole. The lateral wall portion is annularly arranged on an inner periphery of the separating portion defining the through-hole. The lateral wall portion is connected to the first electrode layer and includes a first dielectric. The oxygen-containing rheostatic layer covers the first electrode layer, the separating portion and the lateral wall portion. The oxygen-containing rheostatic layer includes a second dielectric smaller than the first dielectric. The second electrode layer is arranged on the oxygen-containing rheostatic layer. In this structure, the difficulty can be effectively overcome.
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