Defect gradient to boost nonvolatile memory performance
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United States of America Patent
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Dec 16, 2014
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N/A
app pub date -
Nov 8, 2013
filing date -
Sep 1, 2011
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Abstract
Embodiments of the present invention generally relate to a resistive switching nonvolatile memory element that is formed in a resistive switching memory device that may be used in a memory array to store digital data. The memory element is generally constructed as a metal-insulator-metal stack. The resistive switching portion of the memory element includes a getter and/or a defect portion. In general, the getter portion is an area of the memory element that is used to help form, during the resistive switching memory device's fabrication process, a region of the resistive switching layer that has a greater number of vacancies or defects compared to the remainder of resistive switching layer. The defect portion is an area of the memory element that has a greater number of vacancies or defects compared to the remainder of the resistive switching layer, and is formed during the resistive switching memory device's fabrication process.
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