摘要:
A method of manufacturing a semiconductor device includes removing a part of a semiconductor substrate to form a protruding portion and a recess portion in a surface area of the semiconductor substrate, forming a first epitaxial semiconductor layer in the recess portion, forming a second epitaxial semiconductor layer on the protruding portion and the first epitaxial semiconductor layer, removing a first part of the second epitaxial semiconductor layer with a second part of the second epitaxial semiconductor layer left to expose a part of the first epitaxial semiconductor layer, and etching the first epitaxial semiconductor layer from the exposed part of the first epitaxial semiconductor layer to form a cavity under the second part of the second epitaxial semiconductor layer.
摘要:
A method of manufacturing a semiconductor device includes removing a part of a semiconductor substrate to form a protruding portion and a recess portion in a surface area of the semiconductor substrate, forming a first epitaxial semiconductor layer in the recess portion, forming a second epitaxial semiconductor layer on the protruding portion and the first epitaxial semiconductor layer, removing a first part of the second epitaxial semiconductor layer with a second part of the second epitaxial semiconductor layer left to expose a part of the first epitaxial semiconductor layer, and etching the first epitaxial semiconductor layer from the exposed part of the first epitaxial semiconductor layer to form a cavity under the second part of the second epitaxial semiconductor layer.
摘要:
A cleaning apparatus for a semiconductor wafer includes: a gas jet device including a gas nozzle which jets a first gas onto the surface of a semiconductor wafer to thin the thickness of a stagnant layer on the surface of the semiconductor wafer; and a two-fluid jet device including a two-fluid nozzle which jets droplet mist onto a region where thickness of the stagnant layer of the semiconductor wafer is thinned, the droplet mist being mixed two-fluid of a liquid and a second gas.
摘要:
A cleaning method for a semiconductor wafer with cleaning liquid comprising: cleaning the semiconductor wafer while the temperature of the surface of the semiconductor wafer is from 30 degrees to 50 degrees, the cleaning liquid has lower surface tension and viscosity than water.
摘要:
A cleaning apparatus for a semiconductor wafer includes: a gas jet device including a gas nozzle which jets a first gas onto the surface of a semiconductor wafer to thin the thickness of a stagnant layer on the surface of the semiconductor wafer; and a two-fluid jet device including a two-fluid nozzle which jets droplet mist onto a region where thickness of the stagnant layer of the semiconductor wafer is thinned, the droplet mist being mixed two-fluid of a liquid and a second gas.
摘要:
A method has been disclosed which cleans a semiconductor substrate using a cleaning liquid produced by mixing bubbles of a gas into an acid solution in which the gas has been dissolved to the saturated concentration and which brings the zeta potentials of the semiconductor substrate and adsorbed particles into the negative region by the introduction of an interfacial active agent. Alternatively, a semiconductor substrate is cleaned using a cleaning liquid produced by mixing bubbles of a gas into an alkaline solution in which the gas has been dissolved to the saturated concentration and whose pH is 9 or more.
摘要:
A method has been disclosed which cleans a semiconductor substrate using a cleaning liquid produced by mixing bubbles of a gas into an acid solution in which the gas has been dissolved to the saturated concentration and which brings the zeta potentials of the semiconductor substrate and adsorbed particles into the negative region by the introduction of an interfacial active agent. Alternatively, a semiconductor substrate is cleaned using a cleaning liquid produced by mixing bubbles of a gas into an alkaline solution in which the gas has been dissolved to the saturated concentration and whose pH is 9 or more.
摘要:
According to one embodiment, a method for cleaning a semiconductor substrate comprises supplying water vapor to a surface of a semiconductor substrate on which a concave-convex pattern is formed while heating the semiconductor substrate at a predetermined temperature, cooling the semiconductor substrate after stopping the heating and the supply of the water vapor and freezing water on the semiconductor substrate, after freezing the water, supplying pure water onto the semiconductor substrate and melting a frozen film, and after melting the frozen film, drying the semiconductor substrate.
摘要:
A template cleaning method for cleaning a template for nanoimprint, according to an embodiment of the present invention includes placing a wafer on a stage provided in a chamber, cleaning the wafer placed on the stage, inspecting the wafer for particles after the cleaning of the wafer, placing the template on the stage after the inspection of the wafer, and cleaning the template placed on the stage.
摘要:
According to one embodiment, a method for cleaning a semiconductor substrate comprises supplying water vapor to a surface of a semiconductor substrate on which a concave-convex pattern is formed while heating the semiconductor substrate at a predetermined temperature, cooling the semiconductor substrate after stopping the heating and the supply of the water vapor and freezing water on the semiconductor substrate, after freezing the water, supplying pure water onto the semiconductor substrate and melting a frozen film, and after melting the frozen film, drying the semiconductor substrate.