摘要:
In a method of manufacturing an MRAM device, a memory unit including a lower electrode, an MTJ structure and an upper electrode sequentially stacked is formed on a substrate. A protective layer structure including a capping layer, a sacrificial layer and an etch stop layer sequentially stacked is formed on the substrate to cover the memory unit. An insulating interlayer is formed on the protective layer structure. The insulating interlayer is formed to form an opening exposing the protective layer structure. The exposed protective layer structure is partially removed to expose the upper electrode. A wiring is formed on the exposed upper electrode to fill the opening.
摘要:
Provided are a magnetic memory device and a method of forming the same. The magnetic memory device includes a magnetic tunnel junction pattern located on a substrate and including magnetic patterns and a tunnel barrier pattern located between the magnetic patterns, and a first crystallinity conserving pattern located on the magnetic tunnel junction pattern and having a higher crystallization temperature than the magnetic patterns. The first crystallinity conserving pattern is amorphous.
摘要:
A method of fabricating a phase change memory includes forming a lower electrode on a semiconductor substrate, forming a phase change pattern, an upper electrode, and a hard mask pattern sequentially on the lower electrode, a width of a bottom surface of the hard mask pattern being greater than a width of a top surface of the hard mask pattern, the bottom surface of the hard mask pattern facing the upper electrode and being opposite the top surface of the hard mask pattern, and forming a capping layer to cover the top surface of the hard mask pattern and sidewalls of the hard mask pattern, phase change pattern, and upper electrode.
摘要:
A method of fabricating a phase change memory includes forming a lower electrode on a semiconductor substrate, forming a phase change pattern, an upper electrode, and a hard mask pattern sequentially on the lower electrode, a width of a bottom surface of the hard mask pattern being greater than a width of a top surface of the hard mask pattern, the bottom surface of the hard mask pattern facing the upper electrode and being opposite the top surface of the hard mask pattern, and forming a capping layer to cover the top surface of the hard mask pattern and sidewalls of the hard mask pattern, phase change pattern, and upper electrode.
摘要:
A phase change memory device includes a mold layer disposed on a substrate, a heating electrode, a filling insulation pattern and a phase change material pattern. The heating electrode is disposed in an opening exposing the substrate through the mold layer. The heating electrode is formed in a substantially cylindrical shape, having its sidewalls conformally disposed on the lower inner walls of the opening. The filling insulation pattern fills an empty region surrounded by the sidewalls of the heating electrode. The phase change material pattern is disposed on the mold layer and downwardly extended to fill the empty part of the opening. The phase change material pattern contacts the top surfaces of the sidewalls of the heating electrode.
摘要:
A semiconductor device includes a semiconductor substrate and a lower interlayer insulating layer disposed on the substrate. An opening passing through the lower interlayer insulating layer and exposing the substrate is included. A buried insulating pattern is disposed in the opening. First and second conductive layer patterns are sequentially stacked to surround the sidewall and bottom of the buried insulating pattern. A phase change material pattern is included, which is disposed on the lower interlayer insulating layer in contact with a top surface of the second conductive layer pattern, and spaced apart from the first conductive layer pattern. An upper interlayer insulating layer covering the lower interlayer insulating layer and the phase change material pattern is included. A conductive plug is included, which passes through the upper interlayer insulating layer and is electrically connected to the phase change material pattern. A method of fabricating the semiconductor device is also provided.
摘要:
A non-volatile memory array includes an array of phase-changeable memory elements that are electrically insulated from each other by at least a first electrically insulating region extending between the array of phase-changeable memory elements. The first electrically insulating region includes a plurality of voids therein. Each of these voids extends between a corresponding pair of phase-changeable memory cells in the non-volatile memory array and, collectively, the voids form an array of voids in the first electrically insulating region.
摘要:
In one embodiment, a phase-change memory device has an oxidation barrier layer to protect against memory cell contamination or oxidation and a method of manufacturing the same. In one embodiment, a semiconductor memory device comprises a molding layer overlying a semiconductor substrate. The molding layer has a protrusion portion vertically extending from a top surface thereof. The device further includes a phase-changeable material pattern adjacent the protrusion portion and a lower electrode electrically connected to the phase-changeable material pattern.
摘要:
A semiconductor device includes a semiconductor substrate and a lower interlayer insulating layer disposed on the substrate. An opening passing through the lower interlayer insulating layer and exposing the substrate is included. A buried insulating pattern is disposed in the opening. First and second conductive layer patterns are sequentially stacked to surround the sidewall and bottom of the buried insulating pattern. A phase change material pattern is included, which is disposed on the lower interlayer insulating layer in contact with a top surface of the second conductive layer pattern, and spaced apart from the first conductive layer pattern. An upper interlayer insulating layer covering the lower interlayer insulating layer and the phase change material pattern is included. A conductive plug is included, which passes through the upper interlayer insulating layer and is electrically connected to the phase change material pattern. A method of fabricating the semiconductor device is also provided.
摘要:
Ferroelectric integrated circuit devices, such as memory devices, are formed on an integrated circuit substrate. Ferroelectric capacitor(s) are on the integrated circuit substrate and a further structure on the integrated circuit substrate overlies at least a part of the ferroelectric capacitor(s). The further structure includes at least one layer providing a barrier to oxygen flow to the ferroelectric capacitor(s). An oxygen penetration path contacting the ferroelectric capacitor(s) is interposed between the ferroelectric capacitor(s) and the further structure. The layer providing a barrier to oxygen flow may be an encapsulated barrier layer. Methods for forming ferroelectric integrated circuit devices, such as memory devices, are also provided.