Abstract:
A silicon film forming method of forming a silicon film in a recess with respect to a target substrate having on its surface an insulating film in which the recess is formed. The method includes (a) forming a first silicon film filling the recess by supplying a Silicon raw material gas onto the target substrate, (b) subsequently, etching the first silicon film by supplying a halogen-containing etching gas onto the target substrate such that surfaces of the insulating film on the target substrate and on an upper portion of an inner wall of the recess are exposed and such that the first silicon film remains in a bottom portion of the recess, and (c) subsequently, growing a second silicon film in a bottom-up growth manner on the first silicon film that remains in the recess by supplying a Silicon raw material gas onto the target substrate after the etching.
Abstract:
A method of forming a silicon film, a germanium film or a silicon germanium film on a target substrate having a fine recess formed on a surface of the target substrate by a chemical vapor deposition method includes placing the target substrate having the fine recess in a processing container, and supplying a film forming gas containing an element constituting a film to be formed and a chlorine-containing compound gas into the processing container. Adsorption of the film forming gas at an upper portion of the fine recess is selectively inhibited by the chlorine-containing compound gas.
Abstract:
A method of cleaning an apparatus for forming an amorphous silicon film by removing an adhered material from an interior of the apparatus after the amorphous silicon film is formed on a workpiece through supply of a process gas into a reaction chamber of the apparatus includes: removing the adhered material from the interior of the apparatus by supplying the cleaning gas into the reaction chamber; and performing at least one purge process selected from a first purge process of supplying ammonia into the reaction chamber, from which the adhered material has been removed by supplying the cleaning gas into the reaction chamber, and a second purge process of supplying a gas containing hydrogen and oxygen into the reaction chamber, from which the adhered material has been removed by supplying the cleaning gas into the reaction chamber.
Abstract:
A method of forming a silicon oxide film for burying the silicon oxide film in a trench formed on a surface of a target object includes forming a silicon film on the trench of the target object, etching the silicon film, oxidizing the silicon film subjected to the etching to form a first silicon oxide film, and forming a second silicon oxide film on the first silicon oxide film to cover the first silicon oxide film formed through the oxidizing the silicon film while the second silicon oxide film is buried in the trench of the target object.
Abstract:
A batch-type vertical substrate processing apparatus includes a processing chamber into which a substrate holder configured to stack and hold a plurality of target substrates in a height direction is inserted; and a plurality of flanges formed to protrude from an inner wall of the processing chamber toward an internal space of the processing chamber along a planar direction and configured to divide the interior of the processing chamber into a plurality of processing subspaces along the height direction, wherein the flanges include insertion holes through which the substrate holder is inserted, and diameters of the insertion holes are small at an upper side of the processing chamber and become gradually larger toward a lower side of the processing chamber.
Abstract:
A method of manufacturing a semiconductor device includes: planarizing a surface of a substrate having a conductive material embedded in a first hole so as to expose the conductive material embedded in the first hole, wherein the first hole is formed in a region which is on an insulating film laminated on the substrate and is surrounded by a spacer film; laminating a mask film on the surface of the substrate; forming a second hole in the mask film such that at least a portion of an upper surface of the conductive material embedded in the first hole is exposed; embedding the conductive material in the second hole; and removing the mask film.
Abstract:
There is provided a film forming method comprising an organic substance removal step of removing an organic substance adhering to an oxide film generated on a surface of a base by supplying a hydrogen-containing gas and an oxygen-containing gas to the base; an oxide film removal step of removing the oxide film formed on the surface of the base after the organic substance removal step; and a film forming step of forming a predetermined film on the surface of the base after the oxide film removal step.
Abstract:
A vertical heat treatment apparatus includes a plurality of gas supply pipes installed in one of left-right-half regions of a reaction vessel and configured to supply a process gas to division regions obtained by dividing a processing region; an exhaust opening formed in a wall of the reaction vessel in the other of the left-right-half regions; and a vacuum exhaust path in communication with the exhaust opening. The plurality of gas supply pipes are installed to extend from an inner wall portion of the reaction vessel at a position lower than the processing region. At least one of the gas supply pipes includes a bent portion formed by bending downward a leading end portion that is extended upward, and a plurality of gas discharge holes are formed at a downstream side from the bent portion.
Abstract:
Provided is a method of forming a silicon film in a groove formed on a surface of an object to be processed, which includes: forming a first silicon layer on the surface of the object to be processed to embed the groove; doping impurities near a surface of the first silicon layer; forming a seed layer on the doped first silicon layer; and forming a second silicon layer containing impurities on the seed layer.
Abstract:
The present disclosure provides a silicon film forming method for forming a silicon film on a workpiece having a processed surface, including: forming a seed layer by supplying a high-order aminosilane-based gas containing two or more silicon atoms in a molecular formula onto the processed surface and by having silicon adsorbed onto the processed surface; and forming a silicon film by supplying a silane-based gas not containing an amino group onto the seed layer and by depositing silicon onto the seed layer, wherein, when forming a seed layer, a process temperature is set within a range of 350 degrees C. or lower and a room temperature or higher.