Patents by Inventor Masanobu Habiro

Masanobu Habiro 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: 9022834
    Abstract: The polishing solution for CMP according to the invention comprises abrasive grains, an additive and water, and the polishing solution comprises an organic compound satisfying specified conditions as the additive. The polishing method of the invention is for polishing of a substrate having a silicon oxide film on the surface, and the polishing method comprises a step of polishing the silicon oxide film with a polishing pad while supplying the polishing solution for CMP between the silicon oxide film and the polishing pad.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: May 5, 2015
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Eiichi Satou, Munehiro Oota, Kanshi Chinone, Shigeru Nobe, Kazuhiro Enomoto, Tadahiro Kimura, Masato Fukasawa, Masanobu Habiro, Yousuke Hoshi
  • Patent number: 8486837
    Abstract: A polishing slurry for metal comprises an oxidizer, a metal oxide dissolving agent, a metal inhibitor, and water, wherein the metal inhibitor is at least one of a compound having an amino-triazole skeleton and a compound having an imidazole skeleton. The use of the polishing slurry for metal makes it possible to raise the polishing speed sufficiently while keeping the etching speed low, restrain the generation of corrosion of the surface of a metal and dishing, and form a metal-film-buried pattern having a high reliability in the process of formation of wiring of semiconductor devices.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: July 16, 2013
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Hiroshi Ono, Katsuyuki Masuda, Masanobu Habiro
  • Publication number: 20110275285
    Abstract: The polishing solution for CMP according to the invention comprises abrasive grains, an additive and water, and the polishing solution comprises an organic compound satisfying specified conditions as the additive. The polishing method of the invention is for polishing of a substrate having a silicon oxide film on the surface, and the polishing method comprises a step of polishing the silicon oxide film with a polishing pad while supplying the polishing solution for CMP between the silicon oxide film and the polishing pad.
    Type: Application
    Filed: June 10, 2011
    Publication date: November 10, 2011
    Applicant: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Eiichi Satou, Munehiro Oota, Kanshi Chinone, Shigeru Nobe, Kazuhiro Enomoto, Tadahiro Kimura, Masato Fukasawa, Masanobu Habiro, Yousuke Hoshi
  • Publication number: 20110027994
    Abstract: A polishing liquid for CMP has a composition loaded with, for example, an inorganic salt, a protective film forming agent and a surfactant capable of imparting a dissolution accelerating activity to enlarge a difference between polishing speed under non-load and polishing speed under load. By virtue of this polishing liquid for CMP, there can be simultaneously accomplished a speed increase for increasing CMP productivity, and wiring planarization for miniaturization and multilayer formation of wiring.
    Type: Application
    Filed: October 8, 2010
    Publication date: February 3, 2011
    Inventors: Katsumi Mabuchi, Haruo Akahoshi, Yasuo Kamigata, Masanobu Habiro, Hiroshi Ono
  • Publication number: 20090117829
    Abstract: A polishing slurry for metal comprises an oxidizer, a metal oxide dissolving agent, a metal inhibitor, and water, wherein the metal inhibitor is at least one of a compound having an amino-triazole skeleton and a compound having an imidazole skeleton. The use of the polishing slurry for metal makes it possible to raise the polishing speed sufficiently while keeping the etching speed low, restrain the generation of corrosion of the surface of a metal and dishing, and form a metal-film-buried pattern having a high reliability in the process of formation of wiring of semiconductor devices.
    Type: Application
    Filed: December 29, 2008
    Publication date: May 7, 2009
    Applicant: HITACHI CHEMICAL CO., LTD.
    Inventors: Hiroshi Ono, Katsuyuki Masuda, Masanobu Habiro
  • Patent number: 7374474
    Abstract: In CMP technology for planarizing an interlayer insulation film, a BPSG film, an insulation film for shallow trench isolation, or the like, in the production process of a semiconductor element, irregularities of a matter being polished, e.g. a silicon oxide film, are planarized efficiently at a high speed while suppressing the occurrence of polishing flaws on the substrate by employing a polishing pad having organic fibers exposed on the surface thereof abutting against the matter being polished.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: May 20, 2008
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Masaya Nishiyama, Masanobu Habiro, Yasuhito Iwatsuki, Hirokazu Hiraoka
  • Publication number: 20080105651
    Abstract: A polishing liquid for CMP has a composition loaded with, for example, an inorganic salt, a protective film forming agent and a surfactant capable of imparting a dissolution accelerating activity to enlarge a difference between polishing speed under non-load and polishing speed under load. By virtue of this polishing liquid for CMP, there can be simultaneously accomplished a speed increase for increasing CMP productivity, and wiring planarization for miniaturization and multilayer formation of wiring.
    Type: Application
    Filed: August 9, 2005
    Publication date: May 8, 2008
    Inventors: Katsumi Mabuchi, Haruo Akahoshi, Yasuo Kamigata, Masanobu Habiro, Hiroshi Ono
  • Publication number: 20070147551
    Abstract: A CMP slurry is mixed with an oxidant in polishing and contains a copper rust inhibitor, a water-soluble polymer, a pH controller capable of forming a complex with copper, and water, and is substantially free from abrasive. The CMP slurry effectively reduces dishing in chemical polishing of copper and forms reliable wiring. Preferably, the contents of the rust inhibitor, the water-soluble polymer, and the oxidant are 0.1 to 5 wt %, 0.05 to 5 wt %, and 0.01 to 5M relative to 1 liter of the CMP slurry, respectively, and the amount of the pH controller is a necessary amount for adjusting pH of the CMP slurry to 1.5 to 2.5.
    Type: Application
    Filed: December 22, 2006
    Publication date: June 28, 2007
    Inventors: Katsumi Mabuchi, Haruo Akahoshi, Masanobu Habiro, Takafumi Sakurada, Yutaka Nomura
  • Publication number: 20060143990
    Abstract: A polishing slurry for metal comprises an oxidizer, a metal oxide dissolving agent, a metal inhibitor, and water, wherein the metal inhibitor is at least one of a compound having an amino-triazole skeleton and a compound having an imidazole skeleton. The use of the polishing slurry for metal makes it possible to raise the polishing speed sufficiently while keeping the etching speed low, restrain the generation of corrosion of the surface of a metal and dishing, and form a metal-film-buried pattern having a high reliability in the process of formation of wiring of semiconductor devices.
    Type: Application
    Filed: June 13, 2003
    Publication date: July 6, 2006
    Inventors: Hiroshi Ono, Katsuyuki Masuda, Masanobu Habiro
  • Publication number: 20040224623
    Abstract: In CMP technology for planarizing an interlayer insulation film, a BPSG film, an insulation film for shallow trench isolation, or the like, in the production process of a semiconductor element, irregularities of a matter being polished, e.g. a silicon oxide film, are planarized efficiently at a high speed while suppressing the occurrence of polishing flaws on the substrate by employing a polishing pad having organic fibers exposed on the surface thereof abutting against the matter being polished.
    Type: Application
    Filed: March 30, 2004
    Publication date: November 11, 2004
    Inventors: Masaya Nishiyama, Masanobu Habiro, Yasuhito Iwatsuki, Hirokazu Hiraoka