Patents Assigned to Canon Sales Co., Inc.
  • Patent number: 5554570
    Abstract: The present invention relates to a film forming method of forming a silicon containing insulating film by plasma CVD. Objects of the present invention are to form, using a highly safe reaction gas, an insulating film which is dense, has excellent step coverage and is low in moisture and in organic residues such as carbon. The insulating film has good affinity for the silicon oxide film formed by the thermal CVD method. The invention also enables control of the refractive index and stress etc. of the insulating film formed. The mixed gas, including the organic compound having Si-H bonds and the oxidizing gas, is converted to a plasma and the silicon containing insulating film is formed on a deposition substrate from the plasma.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: September 10, 1996
    Assignees: Canon Sales Co., Inc., Alcantech Co., Inc., Semiconductor Process Laboratory Co., Ltd.
    Inventors: Kazuo Maeda, Noboru Tokumasu, Yoshiaki Yuyama
  • Patent number: 5532193
    Abstract: The invention relates to a method for forming a BSG film by means of chemical vapor deposition, has an object which is to provide a film forming method making it possible to obtain a BSG film of high denseness and of low hygroscopicity even immediately after the film has been formed at a low temperature, and comprises a process of forming a borosilicate glass film (BSG film) on a substrate using a mixed gas of an organometallic compound having Si--O--B bond and ozone (O.sub.3).
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: July 2, 1996
    Assignees: Canon Sales Co., Inc., Alcan-Tech Co., Inc., Semiconductor Process Laboratory Co., Ltd.
    Inventors: Kazuo Maeda, Noboru Tokumasu, Yoshiaki Yuyama
  • Patent number: 5484749
    Abstract: The present invention provides a method of manufacturing a semiconductor device, characterized in that, after a surface of a substrate is reformed by high frequency plasma irradiation while the substrate is heated, an organic silane and ozone are reacted to form a silicon oxide film on the substrate under normal pressure or reduced pressure. The present invention also provides a method of manufacturing a semiconductor device, characterized in that, after a surface of a substrate is reformed by high frequency plasma irradiation while heating the substrate, organic silane, gas containing dopants such as phosphorus or boron and ozone are mixed, and a PSG film, a BSG film, a BPSG film or the like is formed on the substrate under normal pressure or reduced pressure.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: January 16, 1996
    Assignees: Alcan-Tech Co., Inc., Semiconductor Process Laboratory Co., Ltd., Canon Sales Co., Inc.
    Inventors: Kazuo Maeda, Noboru Tokumasu, Yuko Nishimoto
  • Patent number: 5387546
    Abstract: The present invention relates to a method for manufacturing a semiconductor device including a method for reforming an insulating film formed by a low temperature CVD method. It is an object of the present Invention to provide a method for manufacturing a semiconductor device capable of improving a film quality of an insulating film formed by a CVD method which is able to form a film at a low temperature and also capable of maintaining mass productivity, in which processing by irradiation with ultraviolet rays of the insulating film while heating the film after forming an insulating film (4) on a body to be formed by a chemical vapor deposition method is included.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: February 7, 1995
    Assignees: Canon Sales Co., Inc., Alcan-Tech Co., Ltd., Semiconductor Process Laboratory Co., Ltd.
    Inventors: Kazuo Maeda, Noboru Tokumasu, Yuko Nishimoto
  • Patent number: 5330577
    Abstract: A semiconductor fabrication apparatus for forming a film on a wafer by a CVD method provides for easy removal of the dust generated in a film-forming chamber without reducing the uptime/downtime ratio of the equipment. The apparatus includes one or more gas dispersing devices having gas releasing surfaces for releasing a reaction gas to form a film on a wafer; one or more wafer holders having wafer mounting surfaces opposed to the plane defined by the gas releasing surface; and one or more cleaners, each having a suction port and a brush connected to the suction port, provided opposing the gas releasing surface. Either the cleaner or the gas dispersing device is moved so that the brush contacts and traverses the gas releasing surface.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: July 19, 1994
    Assignees: Semiconductor Process Laboratory Co., Inc., Canon Sales Co., Inc., Alcan-Tech Co., Inc.
    Inventors: Kazuo Maeda, Kouichi Ohira, Mitsuo Hirose
  • Patent number: 5324539
    Abstract: The present invention provides a method for forming a chemical vapor deposition film which is suitable for an interlevel insulator between Al and Al or an interlevel insulator between Al and a gate, and provides an improved chemical vapor deposition film suitable for mass production. An organic siloxane or alkoxysilane and an alkoxy compound of germanium are mixed in a vapor phase, and reacted with oxygen or ozone to thereby form a thin glass film composed of a two-component system of silicon oxide and germanium oxide on a substrate.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: June 28, 1994
    Assignees: Semiconductor Process Laboratory, Canon Sales Co., Inc., Alcan Tech. Co., Inc.
    Inventors: Kazuo Maeda, Noboru Tokumasu, Yuko Nishimoto
  • Patent number: 5314538
    Abstract: An apparatus and method for manufacturing a semiconductor device capable of forming a single layer film or a multilayer film of improved quality by continuously processing without exposure of the wafer to the ambient air. The apparatus includes a film forming section having a gas dispersion unit for supplying reaction gas, a processing section for processing the formed film and a wafer holder for holding a wafer facing the gas dispersion unit or the processing section. The wafer holder moves the wafer between the film forming section and the processing section while heating the wafer by a heating element contained therein.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: May 24, 1994
    Assignees: Semiconductor Process Laboratory, Canon Sales Co., Inc., Alcan Tech Co., Inc.
    Inventors: Kazuo Maeda, Noboru Tokumasu, Yuhko Nishimoto
  • Patent number: 5302209
    Abstract: A continuous type automated apparatus for manufacturing a semiconductor device by forming a film on a wafer by a CVD method. The apparatus moves the wafer while maintaining the wafer at a predetermined temperature, and controls production of individual wafers and formation of multi-layer films of different types. The apparatus includes a wafer holder, a rotary shaft for supporting the wafer holder so that wafer loading surfaces of the wafer holder rotate in a circle within a single plane. A gas dispersion unit is provided separate from the wafer holder and facing the wafer loading surface of the wafer holder. A first pair of contacts are electrically connected to a heater and are mounted on the rotary shaft and a second pair of contacts are connected to a power source are in sliding contact with the first pair of contacts so that the rotation of the rotary shaft is not obstructed. This apparatus is useful as a continuous type automated CVD apparatus.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: April 12, 1994
    Assignees: Semiconductor Process Laboratory Co., Ltd., Canon Sales Co., Inc., Alcan-Tech Co., Inc.
    Inventors: Kazuo Maeda, Kouichi Ohira, Mitsuo Hirose
  • Patent number: 5286681
    Abstract: The present invention relates to a method for manufacturing a semiconductor device, and more particularly to a method for forming a film used for flattening a substrate surface having unevenness in a manufacturing process of a semiconductor device, and has for its object to provide a method of manufacturing a semiconductor device for making it possible to flatten a film by processing at a lower temperature without deteriorating the film quality.The present invention is structured including a process of depositing a film composed of BPSG or PSG on a substrate surface having unevenness, a process of depositing a SiO.sub.2 film or depositing a film composed of BPSG or PSG having concentration lower than phosphorus concentration or boron concentration in the film or a SiO.sub.2 film on the film, and a process of melting and fluidizing these films so as to flatten them by applying heat treatment.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: February 15, 1994
    Assignee: Canon Sales Co., Inc.
    Inventors: Kazuo Maeda, Bunya Matsui, Yuko Nishimoto
  • Patent number: 5281295
    Abstract: A semiconductor fabrication apparatus includes a plurality of processing stations for film formation or etching, concurrently or continuously. The semiconductor fabrication apparatus is capable of supplying a process gas for film formation or etching from a single gas header to each processing station and provides uniform wafer processing at each processing station. The apparatus includes a process gas supply source; a plurality of branch pipes branched from the common header which, in turn, is connected to a process gas supply source; a plurality of outlet pipes connecting the branch pipes with the processing stations through first flow rate controllers; exhaust pipes also connected to the branch pipes; plural switching valves for switching the flow of process gas between the outlet pipes and the exhaust pipes; and plural second flow rate controllers in the exhaust pipes.
    Type: Grant
    Filed: October 20, 1992
    Date of Patent: January 25, 1994
    Assignees: Semiconductor Process Laboratory Co., Ltd., Canon Sales Co., Inc., Alcan-Tech, Co. Inc.
    Inventors: Kazuo Maeda, Kouichi Ohira, Mitsuo Hirose