摘要:
The present invention provides methods of forming a metal oxide layer and methods of forming a capacitor including the same. The methods of forming the metal oxide include forming a thin layer including a metal oxide, such as zirconium oxide, on a substrate and performing a post-treatment on the thin layer at a temperature at which oxygen present in the metal oxide is hindered from being diffused in the thin layer. Consequently, reduced amounts of byproducts are present on the boundary surface of the thin layer and the substrate thereby improving electrical characteristics of the thin layer.
摘要:
In a method of forming a thin film and methods of manufacturing a gate structure and a capacitor, a hafnium precursor including one alkoxy group and three amino groups, and an oxidizing agent are provided on a substrate. The hafnium precursor is reacted with the oxidizing agent to form the thin film including hafnium oxide on the substrate. The hafnium precursor may be employed for forming a gate insulation layer of a transistor or a dielectric layer of a capacitor.
摘要:
In a method of forming a thin film and methods of manufacturing a gate structure and a capacitor, a hafnium precursor including one alkoxy group and three amino groups, and an oxidizing agent are provided on a substrate. The hafnium precursor is reacted with the oxidizing agent to form the thin film including hafnium oxide on the substrate. The hafnium precursor may be employed for forming a gate insulation layer of a transistor or a dielectric layer of a capacitor.
摘要:
Methods of supplying a source to a reactor include charging a gaseous source into a charging volume by selectively activating a source charger coupled between the charging volume and a source reservoir. The gaseous source is then supplied from the charging volume into a deposition process reactor by selectively activating a source supplier coupled between the charging volume and the reactor after the gaseous source in the charging volume attains a desired internal pressure. Apparatus for supplying a source and methods and apparatus for depositing an atomic layer are also provided.
摘要:
Disclosed is a method for forming metal oxide dielectric layers, more particularly HfO2 dielectric layers, using an atomic layer deposition (ALD) method in which a series of thin intermediate layers are formed and treated with one or more oxidizers and nitrogents before the next intermediate layer is formed on the substrate. The intermediate oxidation treatments reduce the number of organic contaminants incorporated into the metal oxide layer from the organometallic precursors to produce a dielectric layer having improved current leakage characteristics. The dielectric layers formed in this manner remain susceptible to crystallization if exposed to temperatures much above 550° C., so subsequent semiconductor manufacturing processes should be modified or eliminated to avoid such temperatures or limit the duration at such temperatures to maintain the performance of the dielectric materials.
摘要:
A semiconductor memory device that includes a composite Al2O3/HfO2 dielectric layer with a layer thickness ratio greater than or equal to 1, and a method of manufacturing the capacitor are provided. The capacitor includes a lower electrode, a composite dielectric layer including an Al2O3 dielectric layer and an HfO2 dielectric layer sequentially formed on the lower electrode, the Al2O3 dielectric layer having a thickness greater than or equal to the HfO2 dielectric layer, and an upper electrode formed on the composite dielectric layer. The Al2O3 dielectric layer has a thickness of 30-60 Å. The HfO2 dielectric layer has a thickness of 40 Å or less.
摘要翻译:一种半导体存储器件,其包括层厚度比大于或等于1的复合Al 2 O 3 / HfO 2 sub>电介质层, 并提供一种制造该电容器的方法。 电容器包括下电极,复合电介质层,其包括依次形成在其上的Al 2 O 3 3电介质层和HfO 2 N 2介电层 下电极,具有大于或等于HfO 2 2电介质层的厚度的Al 2 O 3 3 sub>电介质层,以及形成的上电极 在复合介电层上。 Al 2 O 3介电层具有30-60埃的厚度。 HfO 2 2介电层的厚度为40以下。
摘要:
A semiconductor memory device that includes a composite Al2O3HfO2 dielectric layer with a layer thickness ratio greater than or equal to 1, and a method of manufacturing the capacitor are provided. The capacitor includes a lower electrode, a composite dielectric layer including an Al2O3 dielectric layer and an HfO2 dielectric layer sequentially formed on the lower electrode, the Al2O3 dielectric layer having a thickness greater than or equal to the HfO2 dielectric layer, and an upper electrode formed on the composite dielectric layer. The Al2O3 dielectric layer has a thickness of 30-60 Å. The HfO2 dielectric layer has a thickness of 40 Å or less.
摘要翻译:一种半导体存储器件,其包括层厚度比大于或等于1的复合Al 2 O 3 HfO 2 sub>电介质层,以及 提供了制造电容器的方法。 电容器包括下电极,复合电介质层,其包括依次形成在其上的Al 2 O 3 3介电层和HfO 2 O 3介电层 下电极,具有大于或等于HfO 2 2电介质层的厚度的Al 2 O 3 3 sub>电介质层,以及形成的上电极 在复合介电层上。 Al 2 O 3介电层具有30-60埃的厚度。 HfO 2 2介电层的厚度为40以下。
摘要:
A semiconductor device and a method for forming the same. A dielectric layer is formed on a semiconductor substrate or on a lower electrode of a capacitor. Vacuum annealing is performed on the dielectric layer. Thus, impurities remaining in the dielectric layer can be effectively removed, and the dielectric layer can be densified. As a result, the electrical characteristics of the semiconductor device are improved. For example, the leakage current characteristics of the dielectric layer are improved and capacitance is increased.
摘要:
Disclosed is a method for forming metal oxide dielectric layers, more particularly HfO2 dielectric layers, using an atomic layer deposition (ALD) method in which a series of thin intermediate layers are formed and treated with one or more oxidizers and nitrogents before the next intermediate layer is formed on the substrate. The intermediate oxidation treatments reduce the number of organic contaminants incorporated into the metal oxide layer from the organometallic precursors to produce a dielectric layer having improved current leakage characteristics. The dielectric layers formed in this manner remain susceptible to crystallization if exposed to temperatures much above 550° C., so subsequent semiconductor manufacturing processes should be modified or eliminated to avoid such temperatures or limit the duration at such temperatures to maintain the performance of the dielectric materials.
摘要:
A semiconductor device and a method for forming the same. A dielectric layer is formed on a semiconductor substrate or on a lower electrode of a capacitor. Vacuum annealing is performed on the dielectric layer. Thus, impurities remaining in the dielectric layer can be effectively removed, and the dielectric layer can be densified. As a result, the electrical characteristics of the semiconductor device are improved. For example, the leakage current characteristics of the dielectric layer are improved and capacitance is increased.