摘要:
Provided are a variable resistance memory device and a method of forming the same. The variable resistance memory device may include a substrate, a plurality of bottom electrodes on the substrate, and a first interlayer insulating layer including a trench formed therein. The trench exposes the bottom electrodes and extends in a first direction. The variable resistance memory device further includes a top electrode provided on the first interlayer insulating layer and extending in a second direction crossing the first direction and a plurality of variable resistance patterns provided in the trench and having sidewalls aligned with a sidewall of the top electrode.
摘要:
Provided are a variable resistance memory device and a method of forming the same. The variable resistance memory device may include a substrate, a plurality of bottom electrodes on the substrate, and a first interlayer insulating layer including a trench formed therein. The trench exposes the bottom electrodes and extends in a first direction. The variable resistance memory device further includes a top electrode provided on the first interlayer insulating layer and extending in a second direction crossing the first direction and a plurality of variable resistance patterns provided in the trench and having sidewalls aligned with a sidewall of the top electrode.
摘要:
A resistance variable memory device includes at least one bottom electrode, a first insulating layer containing a trench which exposes the at least one bottom electrode, and a resistance variable material layer including respective first and second portions located on opposite sidewalls of the trench, respectively, where the first and second portions of the resistance variable material layer are electrically connected to the at least one bottom electrode. The device further includes a protective layer covering the resistance variable material layer within the trench, and a second insulating layer located within the trench and covering the protective layer within the trench
摘要:
Phase changeable memory devices are provided including a mold insulating layer on a substrate, the mold insulating layer defining an opening therein. A phase-change material layer is provided in the opening. The phase-change material includes an upper surface that is below a surface of the mold insulating layer. A first electrode is provided in the opening and on the phase-change material layer. A spacer is provided between a sidewall of the mold insulating layer and the phase-change material layer and the first electrode. The upper surface of the first electrode is coplanar with the surface of the mold insulating layer. Related methods are also provided.
摘要:
Provided are a thin film forming apparatus and a thin film forming method. The thin film forming apparatus comprises a first electrode provided for etching a thin film formed on the substrate, a second electrode provided for forming a plasma in the internal space, a third electrode provided for focusing the plasma, and a control unit controlling a voltage to be applied to the first through third electrodes.
摘要:
A variable resistance memory device includes a substrate and a plurality of spaced apart lower electrodes on the substrate. The device further includes a variable resistance material pattern comprising two vertically opposed wall members connected by a bottom member disposed on and electrically connected to at least one of the plurality of lower electrodes and an upper electrode on the variable resistance material pattern. An area of contact of the variable resistance material pattern with the at least one lower electrode may be rectangular, circular, ring-shaped, or arc-shaped. Fabrication methods are also described.
摘要:
Provided is a method for fabricating a phase change memory device. The method includes forming a plurality of bottom electrodes on a substrate, forming a first mold layer on the substrate to extend in a first direction where the bottom electrodes are exposed, forming a second mold layer on the substrate, the second mold layer extending in a second direction orthogonal to the first direction to expose parts of the bottom electrodes, forming a phase change material layer on the first and second mold layers to be connected to parts of the bottom electrodes dividing the phase change material layer as a plurality of phase change layers respectively connected to the parts of the bottom electrodes and forming a plurality of top electrodes on the phase change layers.
摘要:
Provided is a method for fabricating a phase change memory device. The method includes forming a plurality of bottom electrodes on a substrate, forming a first mold layer on the substrate to extend in a first direction where the bottom electrodes are exposed, forming a second mold layer on the substrate, the second mold layer extending in a second direction orthogonal to the first direction to expose parts of the bottom electrodes, forming a phase change material layer on the first and second mold layers to be connected to parts of the bottom electrodes dividing the phase change material layer as a plurality of phase change layers respectively connected to the parts of the bottom electrodes and forming a plurality of top electrodes on the phase change layers.
摘要:
This invention relates to nano-lithography with &pgr;-conjugated azo dyes and azo-metal complexes represented by formula 1 or formula 2(Korea Pat. Appln. Nos. 2001-6879˜6880), which has both electron-donating and electron-accepting groups in the molecular structures, as a resist on Si substrate by using an AFM anodization. lithography. Developing optimum conditions of scan speed, bias voltage, and resist materials are key issues for achieving a high resolution patterning on various substrates. We accomplished nanometer-scale patterning in approximately 35 nm dimensions.
摘要:
Provided are apparatus and methods for forming phase change layers, and methods of manufacturing a phase change memory device. A source material is supplied to a reaction chamber, and purges from the chamber. A pressure of the chamber is varied according to the supply of the source material and the purge of the source material.