Patents by Inventor Takayuki Toshima

Takayuki Toshima 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: 7387131
    Abstract: A substrate processing apparatus for processing a substrate With a processing fluid is provided. The apparatus includes holding members 60 for holding the substrate W, a chuck member 61 for supporting the holding members 60 and a top-face member 62 approaching the substrate W to cover its surface. In arrangement, since the top-face member 62 is supported by the chuck member 61, the holding members 60 can rotate together with the top-face member 62 in one body. With this structure, it is possible to reduce the influence of particles on the substrate W and also possible to provided a low-cost substrate processing apparatus occupied as little installation space as possible.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: June 17, 2008
    Assignee: Tokyo Electron Limited
    Inventors: Osamu Kuroda, Hiroki Taniyama, Takayuki Toshima
  • Publication number: 20080023049
    Abstract: A liquid processing system includes a liquid processing section including liquid processing units horizontally disposed therein and each configured to perform a liquid process while supplying a process liquid onto a substrate; a process liquid storing section that stores the process liquid to be supplied to the liquid processing units of the liquid processing section; and a piping unit including a supply pipe configured to guide the process liquid from the process liquid storing section to the liquid processing units. The process liquid storing section, the piping unit, and the liquid processing section are disposed inside a common casing in this order from below. The supply pipe of the piping unit has a horizontal pipe portion horizontally extending along an array direction of the liquid processing units, such that the process liquid is supplied from the horizontal pipe portion to the liquid processing units individually.
    Type: Application
    Filed: July 24, 2007
    Publication date: January 31, 2008
    Inventors: Kazuhisa Matsumoto, Satoshi Kaneko, Masami Akimoto, Takayuki Toshima, Norihiro Ito
  • Patent number: 7300598
    Abstract: The invention relates to a process including a chemical liquid treatment and a rinse liquid treatment on a substrate, more particularly to a technique for reducing consumption of a chemical liquid while achieving uniform process and preventing particle generation. In a specific embodiment, the process is performed for removing a silicon oxide film formed on a silicon wafer. The process includes three subsequently performed steps, in which (1) diluted hydrofluoric acid (DHF), (2) DHF and de-ionized water (DIW), (3) DIW are supplied, respectively, onto a rotating wafer. Transition from step (1) to step (2) is done immediately before the hydrophilic silicon oxide film is dissolved to expose the underlying hydrophobic silicon layer.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: November 27, 2007
    Assignee: Tokyo Electron Limited
    Inventors: Nobuo Konishi, Takayuki Toshima, Takehiko Orii
  • Publication number: 20070240824
    Abstract: A liquid processing apparatus includes a substrate holding member configured to rotate along with a substrate held thereon in a horizontal state; a rotary cup configured to surround the substrate and to rotate along with the substrate; a liquid supply mechanism configured to supply a process liquid onto at least a front surface of the substrate; and an exhaust/drain section configured to perform gas-exhausting and liquid-draining out of the rotary cup; and a guide member disposed to surround the substrate, having an upper surface to be substantially continued to the front surface of the substrate, and configured to rotate along with the substrate holding member and the rotary cup, such that a process liquid supplied onto the front surface of the substrate and thrown off from the substrate is guided by the upper surface of the guide member from the rotary cup to the exhaust/drain section.
    Type: Application
    Filed: April 17, 2007
    Publication date: October 18, 2007
    Inventors: Satoshi Kaneko, Kazuhisa Matsumoto, Norihiro Ito, Masami Akimoto, Takayuki Toshima, Hiromitsu Nanba
  • Publication number: 20070240638
    Abstract: A liquid processing apparatus includes: a substrate holding member configured to rotate along with a substrate held thereon in a horizontal state; a rotary cup configured to surround the substrate held on the substrate holding member and to rotate along with the substrate; a rotation mechanism configured to integratedly rotate the rotary cup and the substrate holding member; a liquid supply mechanism configured to supply a process liquid onto the substrate; and an exhaust/drain section configured to perform gas-exhausting and liquid-draining of the rotary cup. The exhaust/drain section includes an annular drain cup configured to mainly collect and discharge a process liquid thrown off from the substrate, and an exhaust cup surrounding the drain cup and configured to mainly collect and discharge a gas component from inside and around the rotary cup. Liquid-draining from the drain cup and gas-exhausting from the exhaust cup are performed independently of each other.
    Type: Application
    Filed: April 17, 2007
    Publication date: October 18, 2007
    Inventors: Masami Akimoto, Takayuki Toshima, Satoshi Kaneko, Kazuhisa Matsumoto, Norihiro Ito, Hiromitsu Nanba
  • Publication number: 20070204885
    Abstract: Semiconductor wafers are cleaned by placing the semiconductor wafers in a processing vessel, forming a pure water film on the surfaces of the wafers, forming an ozonic water film by dissolving ozone gas in the pure water film, and removing resist films formed on the wafers by the agency of the ozonic water film. The pure water film is formed by condensing steam on the surfaces of the wafers. The resist films formed on the surfaces of the wafers can be removed by also using hydroxyl radicals produced by interaction between steam and ozone gas supplied into the processing vessel. Thus, the resist films can be removed highly effectively.
    Type: Application
    Filed: February 13, 2007
    Publication date: September 6, 2007
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Takayuki Toshima, Kinya Ueno, Miyako Yamasaka, Hideyuki Tsutsumi, Tadashi Iino, Yuji Kamikawa
  • Publication number: 20070175062
    Abstract: A substrate processing system 1 comprises: a processing tank 3 for processing substrates W with a processing liquid; a drying unit 6 disposed above the processing tank 3; and a carrying mechanism 8 for carrying the substrates W between the processing tank 3 and the drying unit 6. A processing gas supply line 21 for supplying a processing gas into the drying unit 6 and inert gas supply lines 24 and 25 for supplying an inert gas into the drying unit 6 are connected to the drying unit 6. A first discharge line for discharging an atmosphere purged from the drying unit 6 and a second discharge line 27 for forcibly exhausting the drying unit 6 are connected to the drying unit 6.
    Type: Application
    Filed: March 25, 2005
    Publication date: August 2, 2007
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Takayuki Toshima, Naoki Shindo, Hiroshi Yano, Kotaro Tsurusaki
  • Publication number: 20070134431
    Abstract: An electroless plating apparatus performs electroless plating on a wiring portion with a plating solution using a reducer having low reduction power. The electroless plating apparatus includes a support member with a conductive portion, which supports a substrate; a plating-solution feeding mechanism which feeds the plating solution to a top surface of the substrate supported by the support member; a metal member which is provided at the support member in such a way as to be contactable to the plating solution and dissolves into the plating solution when in contact therewith to thereby generate electrons; and an electron supply passage which supplies the electrons generated by the dissolved metal member to the wiring portion on the substrate via the conductive portion of the support member.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 14, 2007
    Inventors: Kenichi Hara, Takayuki Toshima, Mitsuaki Iwashita, Takehiko Orii
  • Patent number: 7229522
    Abstract: A substrate processing apparatus removes resist films formed on wafers by holding the wafers in a processing vessel and exposing the wafers to a mixed gaseous fluid of steam and an ozone-containing gas into the processing vessel. The inner surfaces, to be exposed to the mixed gaseous fluid, of the processing vessel and the surfaces, to be exposed to the mixed gaseous fluid, of component members placed in the processing vessel are coated with SiO2 film to protect the same from the corrosive action of the mixed gaseous fluid.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: June 12, 2007
    Assignees: Tokyo Electron Limited, Sony Corporation
    Inventors: Takayuki Toshima, Hitoshi Abe
  • Publication number: 20070128373
    Abstract: An electroless plating apparatus which supplies a plating solution to a top surface of a substrate to effect electroless plating, comprises a substrate support section which supports a substrate, a plating-solution retaining section which retains the plating solution to be supplied to the top surface of the substrate, a plating-solution feeding pipe which guides the plating solution from the plating-solution retaining section to the top surface of the substrate supported by the substrate support section, a plating-solution temperature controlling mechanism which controls a temperature of the plating solution flowing in the plating-solution feeding pipe, and a suction mechanism which sucks the plating solution in the plating-solution feeding pipe toward the plating-solution retaining section when feeding of the plating solution to the top surface of the substrate through the plating-solution feeding pipe is stopped.
    Type: Application
    Filed: November 30, 2006
    Publication date: June 7, 2007
    Inventors: Kenichi Hara, Mitsuaki Iwashita, Takehiko Orii, Takayuki Toshima
  • Publication number: 20070074747
    Abstract: A substrate processing method which removes an ArF resist film from a wafer having the ArF resist film. As an ultraviolet irradiation process is performed on the ArF resist film, and then an ozone gas and water vapor are fed to the ArF resist film, the ArF resist film is altered in a water-soluble state. Thereafter, the ArF resist film is removed from the substrate by feeding pure water to the ArF resist film altered into the water-soluble state.
    Type: Application
    Filed: December 7, 2004
    Publication date: April 5, 2007
    Inventors: Takayuki Toshima, Tadashi Iino, Yusuke Saito, Mitsunori Nakamori, Noritaka Uchida, Takehiko Orii
  • Publication number: 20070077768
    Abstract: A substrate processing method includes: performing an etching process to form a predetermined pattern on an etching-target film disposed on a substrate; denaturing a substance remaining after the etching process to be soluble in a predetermined liquid; then, performing a silylation process on a surface of the etching-target film having the pattern formed thereon; and then, supplying the predetermined liquid to dissolve and remove the denatured substance.
    Type: Application
    Filed: September 8, 2006
    Publication date: April 5, 2007
    Inventors: Yasushi Fujii, Takayuki Toshima, Takehiko Orii
  • Patent number: 7191785
    Abstract: Semiconductor wafers are cleaned by placing the semiconductor wafers in a processing vessel, forming a pure water film on the surfaces of the wafers, forming an ozonic water film by dissolving ozone gas in the pure water film, and removing resist films formed on the wafers by the agency of the ozonic water film. The pure water film is formed by condensing steam on the surfaces of the wafers. The resist films formed on the surfaces of the wafers can be removed by also using hydroxyl radicals produced by interaction between steam and ozone gas supplied into the processing vessel. Thus, the resist films can be removed highly effectively.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: March 20, 2007
    Assignee: Tokyo Electron Limited
    Inventors: Takayuki Toshima, Kinya Ueno, Miyako Yamasaka, Hideyuki Tsutsumi, Tadashi Iino, Yuji Kamikawa
  • Publication number: 20060196531
    Abstract: A substrate processing apparatus includes a substrate processing part 46 for processing a substrate by a processing liquid and a processing-liquid recovery path 137 allowing of a passage of the processing liquid discharged from the substrate processing part 46. The processing-liquid recovery path 137 is provided with foreign substance removal lines 181, 182 including filters 200, 201 for removing an foreign substance from the processing liquid and cleaners 201, 211 for cleaning the filters 200, 201 respectively. With this constitution, it is possible to cancel the blocking of foreign substances in pipes etc. and also possible to lengthen the life span of the filters.
    Type: Application
    Filed: April 28, 2006
    Publication date: September 7, 2006
    Inventors: Masaru Amai, Masahiro Mukoyama, Takayuki Toshima
  • Patent number: 7063094
    Abstract: A substrate processing apparatus includes a substrate processing part 46 for processing a substrate by a processing liquid and a processing-liquid recovery path 137 allowing of a passage of the processing liquid discharged from the substrate processing part 46. The processing-liquid recovery path 137 is provided with foreign substance removal lines 181, 182 including filters 200, 201 for removing an foreign substance from the processing liquid and cleaners 201, 211 for cleaning the filters 200, 201 respectively. With this constitution, it is possible to cancel the blocking of foreign substances in pipes etc. and also possible to lengthen the life span of the filters.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: June 20, 2006
    Assignee: Tokyo Electron Limited
    Inventors: Masaru Amai, Masahiro Mukoyama, Takayuki Toshima
  • Publication number: 20060060232
    Abstract: A plurality of process liquid supply nozzles 10 are arranged at different levels on right and left sides of a semiconductor wafer W in a process bath 1. A discharge port of each of the nozzles 10 is directed toward the semiconductor wafer W. In accordance with a predetermined procedure, a process liquid is discharged from one or more nozzles 10 selected from the plurality of nozzles 10. In order to perform a chemical liquid treatment, a chemical liquid is discharged from the lowermost nozzle 10, for example, and thereafter, the nozzles 10 on the upper levels sequentially discharge the chemical liquid. In order to perform a rinse liquid treatment by replacing the chemical liquid in the process bath 1 with a rinse liquid, the rinse liquid is discharged from the lowermost nozzle 10 at first, for example. Thereafter, the rinse liquid is discharged from all the nozzles 10. In this manner, efficiency and uniformity in the liquid treatment can be improved.
    Type: Application
    Filed: March 30, 2005
    Publication date: March 23, 2006
    Applicant: Tokyo Electron Limited
    Inventors: Kotaro Tsurusaki, Hiroshi Tanaka, Takayuki Toshima, Kazuyoshi Eshima
  • Patent number: 6895979
    Abstract: A processing apparatus essentially includes a rotatable rotor 21 for carrying semiconductor wafers W, a motor 22 for driving to rotate the rotor 21, a plurality of processing chambers for surrounding the wafers W carried by the rotor 21, for example, an inner chamber 23 and an outer chamber 24, a chemical supplying unit 50, an IPA supplying unit 60, a rinse supplying unit 70 and a drying fluid supplying unit 80. With this constitution of the apparatus, it is possible to prevent the wafers from being contaminated due to the reaction of treatment liquids of different kinds, with the improvement of processing efficiency and miniaturization of the apparatus.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: May 24, 2005
    Assignee: Tokyo Electron Limited
    Inventors: Kyouji Kohama, Eiji Shimbo, Yuji Kamikawa, Takayuki Toshima, Hiroki Ohno
  • Patent number: 6872670
    Abstract: A silylation treatment unit includes a chamber, a heating mechanism provided in this chamber for heating a substrate, a supplying mechanism for supplying a vapor including a silylation reagent into the chamber. The unit also has a substrate holder for holding the substrate in the chamber, in which an interval between the heating mechanism and the substrate is adjustable to at least three levels or more. The substrate is received such that it is least influenced by a heat in the chamber by maximizing the interval from the heating mechanism. The interval is brought comparatively closer to the heating mechanism to wait until the temperature inside the chamber obtains a high planer uniformity. The interval is brought further closer to the heating mechanism after a high planer uniformity is obtained such that a silylation reaction occurs.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: March 29, 2005
    Assignee: Tokyo Electron Limited
    Inventors: Takayuki Toshima, Tsutae Omori, Masami Yamashita
  • Patent number: 6869499
    Abstract: After semiconductor wafers W have been processed with ozone gas and steam fed into a processing vessel 10, air is fed into the processing vessel 10 from an air supply source connected to an ozone gas supply pipe 42 for feeding ozone gas into the processing vessel 10, whereby an atmosphere of the ozone gas in the processing vessel 10 is replaced with an atmosphere of the air.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: March 22, 2005
    Assignee: Tokyo Electron Limited
    Inventors: Takayuki Toshima, Naoki Shindo, Tadashi Iino
  • Publication number: 20050051246
    Abstract: Resists can be removed while metal contamination of wafers, etc. and generation of particles, and growth of oxide films are suppressed. An ozone gas feed system 40 for feeding ozone gas 2 into a processing vessel 10 holding wafers W, and a steam feed means 30 for feeding steam 1 into the processing vessel 10 are provided. An on-off valve 49 inserted in the ozone gas feed pipe 42, an on-off valve 36 inserted in the steam feed pipe 34 and a switch 48 and an on-off valve 49 of ozone gas generator 41 are connected to CPU 100 which is control means and are controlled by the CPU 100. Ozone gas 2 is fed into the processing vessel 10 to pressurize the atmosphere surrounding the wafers W, and then steam 1 is fed into the processing vessel 10 while ozone gas 2 is fed into the processing vessel 10, whereby a resist of the wafers W can be removed with the steam 1 and the ozone 2 while metal corrosion, etc. can be prevented.
    Type: Application
    Filed: October 1, 2004
    Publication date: March 10, 2005
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Takayuki Toshima, Naoki Shindo, Tadashi Iino