摘要:
A method for manufacturing a capacitor having a dielectric film formed of a tantalum oxide film. The method includes forming a lower electrode that is electrically connected to an active region of a semiconductor substrate. A pre-treatment film including a component selected from a group consisting of silicon oxide, silicon nitride, and combinations thereof, is formed on the surface of the lower electrode. A dielectric film is formed on the pre-treatment film using a Ta precursor. The dielectric film includes a first dielectric layer deposited at a first temperature selected from a designated temperature range, and a second dielectric layer deposited at a second temperature different from the first temperature and selected from the same designated temperature range. A thermal treatment is thereafter performed on the dielectric film in an oxygen atmosphere.
摘要:
A capacitor fabricating method for a semiconductor device where a dielectric film is thermally treated under hydrogen atmosphere to improve interface characteristics between the dielectric film and an electrode. In the method, a lower electrode is formed on a semiconductor substrate. A dielectric film is formed on the lower electrode. The dielectric film is thermally treated under hydrogen atmosphere. An upper electrode is formed on the dielectric film, thereby completing formation of the capacitor. The thermal treatment under the hydrogen atmosphere is performed at a temperature of 300 to 600.degree. C. using H.sub.2 gas or H.sub.2 plasma for 5 to 60 minutes. Thus, the density of an interface trap between the electrode and the dielectric film of the capacitor is reduced.
摘要:
A method of depositing a thin film for a semiconductor device using a lamp heating type apparatus. In the method, a wafer is loaded into a processing chamber of the apparatus, and the pressure of the chamber and the temperature of a susceptor installed in the chamber are increased to a level higher than a deposition pressure and a deposition temperature, respectively. Then, the pressure of the chamber and the temperature of the susceptor are decreased to the deposition pressure and the deposition temperature, respectively, and a film is deposited on the wafer. The vacuum of the chamber is then released and the gas remaining in the chamber and a source gas injection tube is purged.
摘要:
An apparatus for forming a film on a substrate includes a reaction chamber and gas supply lines. The gas supply lines supply gases for depositing and annealing the film. Depositing a dielectric film and annealing the dielectric film are performed in situ using the reaction chamber. Thus, the time required for forming the dielectric film is shortened, improving the productivity. Also, deposition and annealing of the dielectric film are performed in the same reaction chamber, so that less area is required for manufacturing equipment.
摘要:
A method for forming a film includes forming the film on a substrate, followed by performing a first annealing of the film at a temperature lower than a crystallization temperature of the film. A second annealing of the film is performed at a temperature higher that the crystallization temperature. Forming the film and the first annealing of the film are performed in situ in a chamber. Alternatively, the first and second annealing are performed in situ in an apparatus.
摘要:
A method for forming a microelectronic capacitor includes the steps of forming a first conductive layer on a substrate and forming an oxide reducing layer on the first conductive layer opposite the substrate wherein the oxide reducing layer reduces oxidation of the first conductive layer. An oxide layer is formed on the oxide reducing layer opposite the substrate, and a dielectric layer is formed on the oxide layer opposite the substrate wherein the dielectric layer has a dielectric constant that is higher than a dielectric constant of the oxide reducing layer, and higher than a dielectric constant of the oxide layer. In addition, a second conductive layer is formed on the dielectric layer opposite the substrate. Related structures are also discussed.
摘要:
Methods of forming Ta2O5 layers in a process chamber are disclosed. A Ta2O5 layer can be maintained at a first temperature that is less than a temperature for crystallization of the Ta2O5 layer. At least one of a position of the Ta2O5 layer in the process chamber relative to the heater and a pressure in the process chamber is changed to increase the temperature of the Ta2O5 layer to about the temperature for crystallization.
摘要翻译:公开了在处理室中形成Ta 2 O 5层的方法。 可以将Ta 2 O 5层保持在小于Ta 2 O 5层的结晶温度的第一温度。 改变处理室中的Ta 2 O 5层相对于加热器的位置和处理室中的压力中的至少一个,以使Ta 2 O 5层的温度升高至约结晶温度。
摘要:
Methods of forming Ta2O5 layers in a process chamber are disclosed. A Ta2O5 layer can be maintained at a first temperature that is less than a temperature for crystallization of the Ta2O5 layer. At least one of a position of the Ta2O5 layer in the process chamber relative to the heater and a pressure in the process chamber is changed to increase the temperature of the Ta2O5 layer to about the temperature for crystallization.
摘要:
A layer is formed by chemical vapor depositing a seeding layer of ruthenium oxide on a substrate at a chemical vapor deposition flow rate ratio of a ruthenium source to oxygen gas. A main layer of ruthenium is chemical vapor deposited on the seeding layer by increasing the chemical vapor deposition flow rate ratio of the ruthenium source to the oxygen gas.
摘要:
The present invention provides integrated circuit devices that include a semiconductor substrate having a semiconductor region of first conductivity type therein extending adjacent the surface of the substrate. The device further includes an electrically insulating layer with a contact hole in it that exposes the semiconductor region of first conductivity type on the surface of the semiconductor substrate. The device still further includes a poly-Si1-xGex conductive plug of first conductivity type that extends in the contact hole and is electrically connected to the semiconductor region of first conductivity type is provided. Related methods of fabricating integrated circuit devices are also provided.