摘要:
A method for treating the surface of a semiconductor layer includes the step of removing an oxide from the surface of a semiconductor layer by adding fluorine or fluoride to hydrogen radicals separately from plasma atmosphere and thereafter exposing the semiconductor layer to the mixed gas and hydrogen-terminating the surface.
摘要:
A method for treating the surface of a semiconductor layer includes the step of removing an oxide from the surface of a semiconductor layer by adding fluorine or fluoride to hydrogen radicals separately from plasma atmosphere and thereafter exposing the semiconductor layer to the mixed gas and hydrogen-terminating the surface.
摘要:
A method of cleaning a hydrogen plasma down-stream apparatus for processing a material in a process chamber by guiding a down-stream of hydrogen plasma generated in a plasma generating space onto the material via a gas flow path with an inner main portion thereof being made of quartz, wherein plasma of a gas containing hydrogen, preferably containing hydrogen and water vapor, is generated in the plasma generating space, nitrogen fluoride is added at a down-stream position from the plasma, and a down-stream of the plasma is directed to the process chamber to clean the gas flow path. Amount of hydrogen radicals can be monitored by a metal sheath thermocouple. A hydrogen plasma down-stream apparatus suitable for removing a native oxide film or a resist film on the surface of silicon can be efficiently cleaned without disassembling it.
摘要:
Pulsed laser beams are applied to an object to be measured. A first laser beam of a pulsed laser beam having a first wavelength which is oscillated immediately after the rise of the pulsed laser beam, and a second laser beam having a second wavelength which is oscillated thereafter are used. Based on a difference between an intensity of first interfered light of reflected light of the first laser beam or transmitted light thereof, and an intensity of reflected light of the second laser beam or transmitted light thereof, temperatures of the object to be measured, and whether the temperatures are on increase or on decrease are judged. The method and device can be realized by simple structures and can measure a direction of changes of the physical quantities.
摘要:
Pulsed laser beams are applied to an object to be measured. A first laser beam of a pulsed laser beam having a first wavelength which is oscillated immediately after the rise of the pulsed laser beam, and a second laser beam having a second wavelength which is oscillated thereafter are used. Based on a difference between an intensity of first interfered light of reflected light of the first laser beam or transmitted light thereof, and an intensity of reflected light of the second laser beam or transmitted light thereof, temperatures of the object to be measured, and whether the temperatures are on increase or on decrease are judged. The method and device can be realized by simple structures and can measure a direction of changes of the physical quantities.
摘要:
The present invention relates to a hydrogen plasma down-flow processing method and a hydrogen plasma down-flow processing apparatus and has an object to provide a hydrogen plasma down-flow processing method and a hydrogen plasma down-flow processing apparatus ensuring that it is possible to make it difficult for hydrogen atoms to deposit and recombine on the internal wall of the apparatus. High speed hydrogen plasma processing can be realized by improving transfer efficiency of hydrogen atoms to the processing chamber. Moreover hydrogen plasma efficiency can also be improved by reducing influence of oxidation species such as OH radical and oxygen atom concentrations can be controlled as desired by keeping the change in hydrogen atom concentration small. The apparatus includes a vacuum chamber of which at least a part of the structural members exposed to a vacuum is made by silicon oxide. In a hydrogen plasma down-flow processing method, whereby the processed object is processed in the down-flow area, the plasma is generated from the gas including at least hydrogen. A processing object is processed by heating at least a part of the silicon oxide region to 443.degree. C. or higher.
摘要:
A method of manufacturing a semiconductor device, including the steps of: cooling a semiconductor wafer to a predetermined temperature, the semiconductor wafer being mounted on a stage provided with cooling means and having a thin oxide film on a surface thereof; supplying energy to gas containing hydrogen and water vapor to excite the gas into a plasma state; adding nitrogen fluoride downstream into a flow of the gas in the plasma state; and introducing a flow of the gas, including the nitrogen fluoride, to the semiconductor wafer to etch the thin oxide film while maintaining the semiconductor wafer at the predetermined temperature.
摘要:
A hydrogen plasma downstream treatment equipment comprises a first gas supply source for supplying a hydrogen gas, a second gas supply source for supplying a nitrogen fluoride gas, and a tube-like chamber used for surface treatment of a semiconductor layer by use of the hydrogen gas and the nitrogen fluoride gas. The chamber includes a plasma generator for activating the hydrogen gas and the nitrogen fluoride gas by introducing the nitrogen fluoride gas in which a flow rate ratio of the hydrogen gas and the nitrogen fluoride gas is in excess of 4, a processor placed in a downstream of the plasma generator to place the semiconductor layer therein, and gas flow controlling means for controlling the first gas supply source and the second gas supply source so as to set a flow rate of the nitrogen fluoride gas four times a flow rate of the hydrogen gas.
摘要:
A microwave plasma processing process and apparatus useful in the fabrication of integrated circuit (IC) or similar semiconductor devices, wherein the object or material to be processed, such as a semiconductor wafer, is processed with plasma generated using microwaves transmitted through a microwave transmission window disposed perpendicular to an electric field of the progressive microwaves in the waveguide.
摘要:
A method removes a first layer of an organic matter which is formed on a second layer, where the first layer is subjected to an ion implantation. The method includes the steps of generating a plasma by exciting a gas which includes H.sub.2 O using a high-frequency energy source, and removing the first layer within the plasma.