摘要:
Provided are FeRAM device constructions and fabrication methods that provide for the direct connection of metal patterns to ferroelectric capacitors. The FeRAM device constructions utilize a combination of one or more barrier layers incorporated in conductive plugs, barrier layers incorporated in primary conductive patterns or conductive patterns formed using one or more noble metals to suppress parametric drift associated with conventional FeRAM constructions.
摘要:
A method of fabricating a ferroelectric device includes forming a ferroelectric layer on a substrate in a reaction chamber. An inactive gas is provided into the reaction chamber while unloading the substrate therefrom to thereby substantially inhibit formation of an impurity layer on the ferroelectric layer.
摘要:
A method of fabricating a ferroelectric device includes forming a ferroelectric layer on a substrate in a reaction chamber. An inactive gas is provided into the reaction chamber while unloading the substrate therefrom to thereby substantially inhibit formation of an impurity layer on the ferroelectric layer.
摘要:
A method of forming a ferroelectric layer is provided. A metal-organic source gas is provided into a chamber into which an oxidation gas is provided for a first time period to form ferroelectric grains on a substrate. A ferroelectric layer is formed by performing at least twice a step of providing a metal-organic source gas into the chamber during the first time period using a pulse method to grow the ferroelectric grains.
摘要:
In a method of forming a ferroelectric capacitor, a lower electrode layer is formed on a substrate. A first crystalline layer is formed on the lower electrode layer. A ferroelectric layer is formed on the first crystalline layer. The first crystalline layer one of prevents a component of the ferroelectric layer from diffusing into the lower electrode layer and mitigates fatigue of the ferroelectric layer. An upper electrode layer is formed on the ferroelectric layer.
摘要:
A method of forming a ferroelectric layer is provided. A metal-organic source gas is provided into a chamber into which an oxidation gas is provided for a first time period to form ferroelectric grains on a substrate. A ferroelectric layer is formed by performing at least twice a step of providing a metal-organic source gas into the chamber during the first time period using a pulse method to grow the ferroelectric grains.
摘要:
A multi-level memory device includes an insulating layer having an opening therein, and a multi-level cell (MLC) formed in the opening that has a resistance level varies based on the data stored therein. The MLC is configured to have a resistance level that varies as write pulses having the same pulse height and different pulse widths are applied to the MLC.
摘要:
A conductive pattern on a substrate is formed. An insulating layer having an opening exposing the conductive pattern is formed. A bottom electrode is formed on the conductive pattern and a first sidewall of the opening. A spacer is formed on the bottom electrode and a second sidewall of the opening. The spacer and the bottom electrode are formed to be lower than a top surface of the insulating layer. A data storage plug is formed on the bottom electrode and the spacer. The data storage plug has a first sidewall aligned with a sidewall of the bottom electrode and a second sidewall aligned with a sidewall of the spacer. A bit line is formed on the data storage plug.
摘要:
Provided are methods of fabricating a semiconductor device including a phase change layer. Methods may include forming a dielectric layer on a substrate, forming an opening in the dielectric layer and depositing, on the substrate having the opening, a phase change layer that contains an element that lowers a process temperature of a thermal treatment process to a temperature that is lower than a melting point of the phase change layer. Methods may include migrating a portion of the phase change layer from outside the opening, into the opening by the thermal treatment process that includes the process temperature that is lower than the melting point of the phase change layer.
摘要:
A nonvolatile memory device and a method of fabricating the same are provided. The nonvolatile memory device includes a conductive pillar that extends from a substrate in a first direction, a variable resistor that surrounds the conductive pillar, a switching material layer that surrounds the variable resistor, a first conductive layer that extends in a second direction, and a first electrode that extends in a third direction and contacts the first conductive layer and the switching material layer. Not one of the first, second, and third directions is parallel to another one of the first, second, and third directions.