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:
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:
An apparatus for depositing a thin film includes a reaction chamber, a reaction gas provider to supply a reaction gas and/or inert gas to the reaction chamber, an oxidant provider to supply a first oxidant and a second oxidant to the reaction chamber, and an air drain to exhaust gas from the apparatus. The oxidant provider is operable to supply the second oxidant to the reaction chamber using the first oxidant as a transfer gas.
摘要:
In some embodiments, a multi-layer dielectric structure, such as a capacitor dielectric region, is formed by forming a first dielectric layer on a substrate according to a CVD process and forming a second dielectric layer directly on the first dielectric layer according to an ALD process. In further embodiments, a multi-layer dielectric structure is formed by forming a first dielectric layer on a substrate according to an ALD process and forming a second dielectric layer directly on the first dielectric layer according to a CVD process. The CVD-formed layers may comprise one selected from the group consisting of SiO2, Si3N3, Ta2O5, HfO2, ZrO2, TiO2, Y2O3, Pr2O3, La2O3, Nb2O5, SrTiO3 (STO), BaSrTiO3 (BST) and PbZrTiO3 (PZT). The ALD-formed layers may comprise one selected from the group consisting of SiO2, Si3N3, Al2O3, Ta2O5, HfO2, ZrO2, TiO2, Y2O3, Pr2O3, La2O3, Nb2O5, SrTiO3 (STO), BaSrTiO3 (BST) and PbZrTiO3 (PZT).
摘要翻译:在一些实施例中,通过根据CVD工艺在衬底上形成第一电介质层并根据ALD在第一电介质层上直接形成第二电介质层来形成诸如电容器电介质区域的多层电介质结构 处理。 在另外的实施例中,通过根据ALD工艺在衬底上形成第一电介质层并根据CVD工艺在第一电介质层上直接形成第二电介质层来形成多层电介质结构。 CVD形成的层可以包括从由SiO 2,Si 3 N 3 N 3,Ta 2 O 3, O 2,HfO 2,ZrO 2,TiO 2,Y 2,N 2, 3 O 3,3/3,3,3,3,3,3,3,3,3, (STO),BaSrTiO 3(BST)和PbZrTiO 3(BST)3(S0) / SUB>(PZT)。 ALD形成的层可以包括从由SiO 2,Si 3 N 3 N 3,Al 2 O 3, 3,O 3,O 2 O 5,HfO 2,ZrO 2,N 2, ,TiO 2,Y 2 O 3,Pr 2 O 3,La Nb 2 O 3,SrTiO 3(STO),N 2 O 3, BaSrTiO 3(BST)和PbZrTiO 3 3(PZT)。
摘要:
In a method of forming an oxide layer using an atomic layer deposition and a method of forming a capacitor of a semiconductor device using the same, a precursor including an amino functional group is introduced onto a substrate to chemisorb a portion of the precursor on the substrate. Then, the non-chemisorbed precursor is removed. Thereafter, an oxidant is introduced onto the substrate to chemically react the chemisorbed precursor with the oxidant to form an oxide layer on the substrate. A deposition rate is fast and an oxide layer having a good deposition characteristic may be obtained. Also, a thin oxide film having a good step coverage and a decreased pattern loading rate can be formed.
摘要:
A method of monitoring a density profile of impurities, the method including presetting a monitoring position of a thin layer coated on a substrate, the density profile of impurities being monitored from the monitoring position in a direction of thickness of the thin layer, moving an exposer for exposing a local area of the thin layer to the monitoring position, exposing the local area of the thin layer along the direction of thickness of the thin layer, forming a shape profile of the exposed local area of the thin layer, and monitoring the density profile of impurities by determining a density of impurities in accordance with the shape profile, and an apparatus therefor. The impurity density profile may be monitored without destroying a substrate on which a thin layer is coated, and an amount of impurities used for forming the thin layer may be monitored and controlled in real-time.