Cross-point memory structures
First Claim
1. A cross-point memory structure, comprising:
- a line of first electrode material extending along a first direction across a silicon-containing semiconductor substrate;
the first electrode material comprising one or more of platinum, titanium nitride and tantalum nitride;
a multi-sided container of access device materials over the first electrode material, the access device materials including an electrically conductive metal-containing material and at least two insulative materials, the insulative materials being between the electrically conductive metal-containing material and the first electrode material;
memory element material within the multi-sided container; and
a line of second electrode material over the memory element material and extending along a second direction that intersects the first direction of the line of first electrode material.
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Accused Products
Abstract
Some embodiments include cross-point memory structures. The structures may include a line of first electrode material extending along a first horizontal direction, a multi-sided container of access device materials over the first electrode material, a memory element material within the multi-sided container, and a line of second electrode material over the memory element material and extending along a second horizontal direction that is orthogonal to the first horizontal direction. Some embodiments include methods of forming memory arrays. The methods may include forming a memory cell stack over a first electrode material, and then patterning the first electrode material and the memory cell stack into a first set of spaced lines extending along a first horizontal direction. Spaced lines of second electrode material may be formed over the first set of spaced lines, and may extend along a second horizontal direction that is orthogonal to the first horizontal direction.
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Citations
10 Claims
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1. A cross-point memory structure, comprising:
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a line of first electrode material extending along a first direction across a silicon-containing semiconductor substrate;
the first electrode material comprising one or more of platinum, titanium nitride and tantalum nitride;a multi-sided container of access device materials over the first electrode material, the access device materials including an electrically conductive metal-containing material and at least two insulative materials, the insulative materials being between the electrically conductive metal-containing material and the first electrode material; memory element material within the multi-sided container; and a line of second electrode material over the memory element material and extending along a second direction that intersects the first direction of the line of first electrode material. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A cross-point memory structure, comprising:
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a first electrode material structure over a semiconductor substrate; a multi-sided container of access device materials over the first electrode material structure, the access device materials including an electrically conductive metal-containing material and at least two insulative materials, the insulative materials being between the electrically conductive metal-containing material and the first electrode material; memory element material withi the multi-sided container; a second electrode material structure over the memory element material; and wherein the first and second electrode material structures are composed by intersecting line structures. - View Dependent Claims (8, 9)
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10. A cross-point memory structure, comprising:
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a line of first electrode material extending along a first horizontal direction; a multi-sided container of access device materials over the first electrode material, the access device materials including an electrically conductive metal-containing material and at least two insulative materials, the insulative materials being between the electrically conductive metal-containing material and the first electrode material; memory element material within the multi-sided container;
wherein the memory element material includes a plug portion within the multi-sided container;
wherein the electrically conductive metal-containing material extends along downwardly-extending sidewalls of the plug portion as well as along a bottom of the plug portion; anda line of second electrode material over the memory element material and extending along a second horizontal direction that is orthogonal to the first horizontal direction of the line of first electrode material.
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Specification