摘要:
In a process involving the formation of an insulating film on a substrate for an electronic device, the insulating film is formed on the substrate surface by carrying out two or more steps for regulating the characteristic of the insulating film involved in the process under the same operation principle. The formation of an insulating film having a high level of cleanness can be realized by carrying out treatment such as cleaning, oxidation, nitriding, and a film thickness reduction while avoiding exposure to the air. Further, carrying out various steps regarding the formation of an insulating film under the same operation principle can realize simplification of the form of an apparatus and can form an insulating film having excellent property with a high efficiency.
摘要:
A process for forming a semiconductor device having an oxide beanie structure (an oxide cap overhanging an underlying portion of the device). An oxide layer is first provided covering that portion, with the layer having a top surface and a side surface. The top and side surfaces are then exposed to an oxide deposition bath, thereby causing deposition of oxide on those surfaces. Deposition of oxide on the top surface causes growth of the cap layer in a vertical direction and deposition of oxide on the side surface causes growth of the cap layer in a horizontal direction, thereby forming the beanie structure.
摘要:
A method and system for modifying a gate dielectric stack by exposure to a plasma. The method includes providing the gate dielectric stack having a high-k layer formed on a substrate, generating a plasma from a process gas containing an inert gas and one of an oxygen-containing gas or a nitrogen-containing gas, where the process gas pressure is selected to control the amount of neutral radicals relative to the amount of ionic radicals in the plasma, and modifying the gate dielectric stack by exposing the stack to the plasma.
摘要:
In a method of manufacturing oxide thin film by adsorbing or depositing oxide forming starting material on a substrate followed by oxide formation, by using water in a liquid state to manufacture the oxide thin film, the advantages of the ALD method are utilized while resolving the tendency to leave impurities in the oxide film produced that is a drawback thereof, so that oxide thin film can be obtained having a reduced concentration of impurities.
摘要:
A method of low-temperature oxidation of a silicon substrate includes placing a silicon wafer in a vacuum chamber; maintaining the silicon wafer at a temperature of between about room temperature and 350° C.; introducing an oxidation gas in the vacuum chamber including introducing an oxidation gas taken from the group of oxidation gases consisting of O2 and O3; dissociating the oxidation gas into radical oxygen with a xenon laser generating light at a wavelength of about 172 nm and flowing the radical oxygen over the silicon wafer; and forming an oxide layer on at least a portion of the silicon wafer.
摘要:
A method for annealing a high dielectric constant (high-k) gate dielectric layer includes placing a wafer including one or more partially formed transistors in an ambient. The ambient may include hydrogen and an oxidizing gas or the ambient may include nitrous oxide. Each transistor includes a high-k gate dielectric layer coupled to a substrate. The method further includes heating the high-k gate dielectric layer to a temperature greater than 650° C. while the gate dielectric layer is in the ambient. The ambient prevents or reduces the formation of lower dielectric constant (lower-k) material between the high-k gate dielectric layer and the substrate. Another method for annealing a high-k gate dielectric layer includes the use of an ambient including chemically active oxygen gas. When such an ambient is used, the high-k gate dielectric layer is heated to a temperature not greater than 600° C. while the gate dielectric layer is in the ambient.
摘要:
A method for annealing a high dielectric constant (high-k) gate dielectric layer includes placing a wafer including one or more partially formed transistors in an ambient. The ambient may include hydrogen and an oxidizing gas or the ambient may include nitrous oxide. Each transistor includes a high-k gate dielectric layer coupled to a substrate. The method further includes heating the high-k gate dielectric layer to a temperature greater than 650null C. while the gate dielectric layer is in the ambient. The ambient prevents or reduces the formation of lower dielectric constant (lower-k) material between the high-k gate dielectric layer and the substrate. Another method for annealing a high-k gate dielectric layer includes the use of an ambient including chemically active oxygen gas. When such an ambient is used, the high-k gate dielectric layer is heated to a temperature not greater than 600null C. while the gate dielectric layer is in the ambient.
摘要:
A method of forming a capacitor of a semiconductor device which can prevent disconnection between lower electrodes by blanket-depositing a second conductive film for silicidation on a semiconductor substrate and forming an oxide of the second conductive film such as titanium dioxide (TiO2) on an interlayer dielectric using high temperature oxidation, before depositing a dielectric film, and which can obtain a high capacitance by forming both a silicide layer including the second conductive film, and the oxide of the second conductive film such as titanium dioxide (TiO2) having a high dielectric constant, on a lower electrode, and using the silicide layer and oxide as the dielectric film.
摘要:
A method for making an electronic device, such as a MOS transistor, including the steps of forming a plurality of semiconductor islands on an electrically functional substrate, printing a first dielectric layer on or over a first subset of the semiconductor islands and optionally a second dielectric layer on or over a second subset of the semiconductor islands, and annealing. The first dielectric layer contains a first dopant, and the (optional) second dielectric layer contains a second dopant different from the first dopant. The dielectric layer(s), semiconductor islands and substrate are annealed sufficiently to diffuse the first dopant into the first subset of semiconductor islands and, when present, the second dopant into the second subset of semiconductor islands.
摘要:
Methods and apparatus for forming an oxide layer on a semiconductor substrate are disclosed. In one or more embodiments, plasma oxidation is used to form a conformal oxide layer by controlling the temperature of the semiconductor substrate at below about 100° C. Methods for controlling the temperature of the semiconductor substrate according to one or more embodiments include utilizing an electrostatic chuck and a coolant and gas convection.