Patents by Inventor Hirohisa Yamazaki

Hirohisa Yamazaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8481434
    Abstract: To remove the deposit including a high dielectric constant film deposited on an inside of a processing chamber, by using a cleaning gas activated only by heat. The method includes the steps of: loading a substrate or a plurality of substrates into the processing chamber; performing processing to deposit the high dielectric constant film on the substrate by supplying processing gas into the processing chamber; unloading the processed substrate from the inside of the processing chamber; and cleaning the inside of the processing chamber by supplying a halide gas and an oxygen based gas into the processing chamber, and removing the deposit including the high dielectric constant film deposited on the inside of the processing chamber, and in the step of cleaning the inside of the processing chamber, the concentration of the oxygen based gas in the halide gas and the oxygen based gas is set to be less than 7%.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: July 9, 2013
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Hironobu Miya, Eisuke Nishitani, Yuji Takebayashi, Masanori Sakai, Hirohisa Yamazaki, Toshinori Shibata, Minoru Inoue
  • Patent number: 8461062
    Abstract: The substrate processing apparatus includes: a processing chamber for storing and processing substrates stacked in multiple stages in horizontal posture; at least one processing gas supply nozzle which extends running along an inner wall of the processing chamber in the stacking direction of the substrates and supplies a processing gas to the inside of the processing chamber; a pair of inactive gas supply nozzles which are provided so as to extend running along the inner wall of the processing chamber in the stacking direction of the substrates and so as to sandwich the processing gas supply nozzle from both sides thereof along the circumferential direction of the substrates and which supply the inactive gas to the inside of the processing chamber; and an exhaust line for exhausting the inside of the processing chamber.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: June 11, 2013
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Masanori Sakai, Yuji Takebayashi, Tsutomu Kato, Shinya Sasaki, Hirohisa Yamazaki
  • Patent number: 8420552
    Abstract: A high-k capacitor insulating film stable at a higher temperature is formed. There is provided a method of manufacturing a semiconductor device. The method comprises: forming a first amorphous insulating film comprising a first element on a substrate; adding a second element different from the first element to the first amorphous insulating film so as to form a second amorphous insulating film on the substrate; and annealing the second amorphous insulating film at a predetermined annealing temperature so as to form a third insulating film by changing a phase of the second amorphous insulating film. The concentration of the second element added to the first amorphous insulating film is controlled according to the annealing temperature.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: April 16, 2013
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Yuji Takebayashi, Hirohisa Yamazaki, Sadayoshi Horii, Hideharu Itatani, Arito Ogawa
  • Publication number: 20120319252
    Abstract: A method for manufacturing a semiconductor device includes performing a cycle a predetermined number of times to form a film on a substrate. The cycle includes feeding a first material containing a first element, to be adsorbed on a substrate surface, to a processing chamber where the substrate is accommodated; feeding a second material containing a second element, adsorbed on the substrate surface, to the processing chamber after the adsorption of the first material; feeding a third material containing a third element to the processing chamber, so that the substrate surface is modified; and removing an atmosphere in the processing chamber. A content of the second element in the film is controlled by adjusting an adsorption quantity of the first material and an adsorption quantity of the second material with respect to a saturated adsorption quantity of the first material adsorbed on the substrate surface.
    Type: Application
    Filed: January 20, 2011
    Publication date: December 20, 2012
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventor: Hirohisa Yamazaki
  • Publication number: 20120280369
    Abstract: There is provided a method for manufacturing a semiconductor device, comprising simultaneously or alternately exposing a substrate, which has two or more kinds of thin films having different elemental components laminated or exposed; and performing different modification treatments to the thin films respectively.
    Type: Application
    Filed: December 15, 2010
    Publication date: November 8, 2012
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Tatsuyuki Saito, Kazuhiro Yuasa, Yoshiro Hirose, Yuji Takebayashi, Ryota Sasajima, Katsuhiko Yamamoto, Hirohisa Yamazaki, Shintaro Kogura, Hirotaka Hamamura
  • Publication number: 20120122318
    Abstract: The substrate processing apparatus includes: a processing chamber for storing and processing substrates stacked in multiple stages in horizontal posture; at least one processing gas supply nozzle which extends running along an inner wall of the processing chamber in the stacking direction of the substrates and supplies a processing gas to the inside of the processing chamber; a pair of inactive gas supply nozzles which are provided so as to extend running along the inner wall of the processing chamber in the stacking direction of the substrates and so as to sandwich the processing gas supply nozzle from both sides thereof along the circumferential direction of the substrates and which supply the inactive gas to the inside of the processing chamber; and an exhaust line for exhausting the inside of the processing chamber.
    Type: Application
    Filed: December 20, 2011
    Publication date: May 17, 2012
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Masanori SAKAI, Yuji TAKEBAYASHI, Tsutomu KATO, Shinya SASAKI, Hirohisa YAMAZAKI
  • Publication number: 20120079985
    Abstract: There is provided a substrate processing method, comprising the steps of: supplying source gas into a processing chamber in which substrates are accommodated; removing the source gas and an intermediate body of the source gas remained in the processing chamber; supplying ozone into the processing chamber in a state of substantially stopping exhaust of an atmosphere in the processing chamber; and removing the ozone and the intermediate body of the ozone remained in the processing chamber; with these steps repeated multiple number of times, to thereby form an oxide film on the surface of the substrates by supplying the source gas and the ozone alternately so as not to be mixed with each other.
    Type: Application
    Filed: December 7, 2011
    Publication date: April 5, 2012
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Hirohisa YAMAZAKI, Yuji Takebayashi, Masanori Sakai, Tsutomu Kato
  • Publication number: 20120034788
    Abstract: A substrate treatment apparatus includes a reaction tube and a heater heating a silicon wafer. Trimethyl aluminum (TMA) and ozone (O3) are alternately fed into the reaction tubeto generate Al2O3 film on the surface of the wafer. The apparatus also includes supply tubes and for flowing the ozone and TMA and a nozzle supplying gas into the reaction tube. The two supply tubes are connected to the nozzle disposed inside the heater in a zone inside the reaction tube where a temperature is lower than a temperature near the wafer, and the ozone and TMA are supplied into the reaction tube through the nozzle.
    Type: Application
    Filed: October 11, 2011
    Publication date: February 9, 2012
    Inventors: Masanori Sakai, Toru Kagaya, Hirohisa Yamazaki
  • Publication number: 20110024875
    Abstract: A high-k capacitor insulating film stable at a higher temperature is formed. There is provided a method of manufacturing a semiconductor device. The method comprises: forming an amorphous first insulating film comprising a first element on a substrate; adding a second element different from the first element to the first insulating film so as to form an amorphous second insulating film on the substrate; and annealing the second insulating film at a predetermined annealing temperature so as to form a third insulating film by changing a phase of the second insulating film. The concentration of the second element added to the first insulating film is controlled according to the annealing temperature.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 3, 2011
    Applicant: HITACHI-KOKUSAI ELECTRIC INC.
    Inventors: Yuji TAKEBAYASHI, Hirohisa YAMAZAKI, Sadayoshi Horii, Hideharu ITATANI, Arito OGAWA
  • Publication number: 20100186774
    Abstract: Provided is a cleaning method for removing a film adhered inside a processing chamber of a substrate processing apparatus used for forming a desired film on a substrate by supplying a material gas for film formation. The method is provided with a step of supplying a halogen containing gas into the processing chamber, and a step of supplying a fluorine containing gas into the processing chamber while supplying the halogen containing gas, after starting to supply the halogen containing gas. In the step of supplying the fluorine containing gas, a supply flow volume ratio of the halogen containing gas to the entire gas supplied into the processing chamber is within a range of 20-25%.
    Type: Application
    Filed: September 9, 2008
    Publication date: July 29, 2010
    Inventors: Hironobu Miya, Yuji Takebayashi, Masanori Sakai, Shinya Sasaki, Hirohisa Yamazaki, Atsuhiko Suda, Takashi Tanioka
  • Publication number: 20100162952
    Abstract: Disclosed is a substrate processing apparatus, including a reaction tube to process a substrate therein, wherein the reaction tube includes an outer tube, an inner tube disposed inside the outer tube, and a support section to support the inner tube, the inner tube and the support section are made of quartz or silicon carbide, and a shock-absorbing member is provided between the support section and the inner tube.
    Type: Application
    Filed: September 26, 2006
    Publication date: July 1, 2010
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventor: Hirohisa Yamazaki
  • Patent number: 7662727
    Abstract: To improve a step coverage and a loading effect, without inviting a deterioration of throughput and an increase of cost, in a method for forming a thin film by alternately flowing a raw material and alcohol to a processing chamber.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: February 16, 2010
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Hironobu Miya, Norikazu Mizuno, Masanori Sakai, Shinya Sasaki, Hirohisa Yamazaki
  • Publication number: 20100035437
    Abstract: Substrate processing uniformity is improved in the surfaces of wafers and between the wafers. A substrate processing apparatus includes a substrate holder holding horizontally oriented and stacked substrates, an inner tube accommodating the substrate holder, an outer tube enclosing the inner tube, a gas nozzle installed in the inner tube, a gas injection hole formed in the gas nozzle, a source gas supply unit supplying source gas to an inside of the inner tube through the gas nozzle, a gas exhaust outlet formed in a sidewall of the inner tube, an exhaust unit exhausting a gap between the outer tube and the inner tube to create a gas stream inside the inner tube from the gas injection hole to the gas exhaust outlet, and a gas penetration preventing cylinder enclosing a region of the substrate holder lower than a region of the substrate holder where the substrates are stacked.
    Type: Application
    Filed: July 28, 2009
    Publication date: February 11, 2010
    Inventors: Hirohisa YAMAZAKI, Satoshi Okada, Tsutomu Kato
  • Publication number: 20100009079
    Abstract: There is provided a substrate processing method, comprising the steps of: supplying source gas into a processing chamber in which substrates are accommodated; removing the source gas and an intermediate body of the source gas remained in the processing chamber; supplying ozone into the processing chamber in a state of substantially stopping exhaust of an atmosphere in the processing chamber; and removing the ozone and the intermediate body of the ozone remained in the processing chamber; with these steps repeated multiple number of times, to thereby form an oxide film on the surface of the substrates by supplying the source gas and the ozone alternately so as not to be mixed with each other.
    Type: Application
    Filed: June 22, 2009
    Publication date: January 14, 2010
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Hirohisa Yamazaki, Yuji Takebayashi, Masanori Sakai, Tsutomu Kato
  • Publication number: 20090223448
    Abstract: A substrate processing apparatus of the present invention comprises: a processing chamber for storing and processing substrates stacked in multiple stages in horizontal posture; a processing gas supply unit for supplying two or more types of the processing gases to the inside of the processing chamber; an inactive gas supply unit for supplying an inactive gas to the inside of the processing chamber; and an exhaust unit for exhausting an atmosphere of the inside of the processing chamber, wherein the processing gas supply unit has at least two processing gas supply nozzles which extend running along an inner wall of the processing chamber in the stacking direction of the substrates and supply the processing gas to the inside of the processing chamber, and the inactive gas supply unit has a pair of inactive gas supply nozzles which are provided so as to extend running along the inner wall of the processing chamber in the stacking direction of the substrates and so as to sandwich at least one processing gas supp
    Type: Application
    Filed: February 20, 2009
    Publication date: September 10, 2009
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Masanori Sakai, Yuji Takebayashi, Tsutomu Kato, Shinya Sasaki, Hirohisa Yamazaki
  • Publication number: 20090197424
    Abstract: A substrate processing apparatus according to the present invention promotes supplying gases to spaces between adjacent substrates without reducing the number of substrates which can be collectively processed.
    Type: Application
    Filed: January 29, 2009
    Publication date: August 6, 2009
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Masanori Sakai, Yuji Takebayashi, Tsutomu Kato, Shinya Sasaki, Hirohisa Yamazaki
  • Publication number: 20090130860
    Abstract: To remove the deposit including a high dielectric constant film deposited on an inside of a processing chamber, by using a cleaning gas activated only by heat. The method includes the steps of: loading a substrate or a plurality of substrates into the processing chamber; performing processing to deposit the high dielectric constant film on the substrate by supplying processing gas into the processing chamber; unloading the processed substrate from the inside of the processing chamber; and cleaning the inside of the processing chamber by supplying a halide gas and an oxygen based gas into the processing chamber, and removing the deposit including the high dielectric constant film deposited on the inside of the processing chamber, and in the step of cleaning the inside of the processing chamber, the concentration of the oxygen based gas in the halide gas and the oxygen based gas is set to be less than 7%.
    Type: Application
    Filed: July 8, 2008
    Publication date: May 21, 2009
    Applicants: HITACHI KOKUSAI ELECTRIC INC., TAIYO NIPPON SANSO CORPORATION
    Inventors: Hironobu Miya, Eisuke Nishitani, Yuji Takebayashi, Masanori Sakai, Hirohisa Yamazaki, Toshinori Shibata, Minoru Inoue
  • Publication number: 20090071505
    Abstract: Provided is a cleaning method which can efficiently remove a film, such as a high dielectric constant oxide film, which is difficult to be etched by a fluorine-containing gas alone. As a cleaning method of a substrate processing apparatus which forms a desired film on a wafer by supplying a source gas, there is provided a cleaning method for removing a film attached to the inside of a processing chamber. The cleaning method includes: a step of supplying a halogen-containing gas into the processing chamber; and a step of supplying a fluorine-containing gas into the processing chamber, after starting the supply of the halogen-containing gas, wherein, in the step of supplying the fluorine-containing gas, the fluorine-containing gas is supplied while supplying the halogen-containing gas into the processing chamber.
    Type: Application
    Filed: August 8, 2008
    Publication date: March 19, 2009
    Inventors: Hironobu Miya, Yuji Takebayashi, Masanori Sakai, Shinya Sasaki, Hirohisa Yamazaki, Atsuhiko Suda
  • Publication number: 20080302302
    Abstract: Disclosed is a substrate processing system, including: a processing chamber to process a substrate; a vaporizing unit to vaporize a material of liquid; a supply system to supply the processing chamber with gas of the material vaporized by the vaporizing unit; an exhaust system to exhaust an atmosphere in the processing chamber; and a cleaning liquid supply system to supply the vaporizing unit with cleaning liquid for cleaning a product deposited in the vaporizing unit, wherein the cleaning liquid supply system supplies at least two kinds of cleaning liquids into the vaporizing unit so that the product can be removed from the vaporizing unit by action of the two kinds of cleaning liquids on the product.
    Type: Application
    Filed: January 24, 2007
    Publication date: December 11, 2008
    Applicant: Hitachi Kokusai Electric Inc.
    Inventors: Tomoki Horita, Kazuhiro Hirahara, Hironobu Miya, Afsuhiko Suda, Hirohisa Yamazaki
  • Publication number: 20080166886
    Abstract: There is provided a substrate processing apparatus, comprising: a processing chamber that houses a plurality of substrates in a state of being stacked; a heating member that heats the substrate and an atmosphere in the processing chamber; a first gas supply member that supplies a source gas that thermally-decomposes; a second gas supply member that supplies oxidative gas; an exhaust member that exhausts the atmosphere in the processing chamber; and a controller that controls at least the first gas supply member, the second gas supply member, and the exhaust member.
    Type: Application
    Filed: September 18, 2007
    Publication date: July 10, 2008
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Masanori Sakai, Norikazu Mizuno, Shinya Sasaki, Hirohisa Yamazaki