Patents by Inventor Ryuta Shimazaki

Ryuta Shimazaki 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: 8101333
    Abstract: The present invention provides a method for miniaturizing a pattern without seriously increasing the production cost or impairing the production efficiency. This invention also provides a fine resist pattern and a resist substrate-treating solution used for forming the fine pattern. The pattern formation method comprises a treatment step. In the treatment step, a resist pattern after development is treated with a resist substrate-treating solution containing an amino group-containing, preferably, a tertiary polyamine-containing water-soluble polymer, so as to reduce the effective size of the resist pattern formed by the development. The present invention also relates to a resist pattern formed by that method, and further relates to a treating solution used in the method.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: January 24, 2012
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Go Noya, Ryuta Shimazaki, Masakazu Kobayashi
  • Patent number: 7998664
    Abstract: The present invention provides a resist substrate treating solution and a method for pattern formation using that treating solution, and thereby problems such as foreign substances on the substrate surface, pattern collapse and pattern roughness can be easily solved at the same time. The treating solution comprises water and an alkylene oxide adduct of a primary amine having a hydrocarbon group of 11 to 30 carbon atoms or of ammonia. The method for pattern formation according to the invention comprises a step of treating the developed pattern with that treating solution.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: August 16, 2011
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Go Noya, Masakazu Kobayashi, Ryuta Shimazaki
  • Publication number: 20100233634
    Abstract: The present invention provides a resist substrate treating solution and a method for pattern formation using that treating solution, and thereby problems such as foreign substances on the substrate surface, pattern collapse and pattern roughness can be easily solved at the same time. The treating solution comprises water and an alkylene oxide adduct of a primary amine having a hydrocarbon group of 11 to 30 carbon atoms or of ammonia. The method for pattern formation according to the invention comprises a step of treating the developed pattern with that treating solution.
    Type: Application
    Filed: February 13, 2007
    Publication date: September 16, 2010
    Inventors: Go Noya, Masakazu Kobayashi, Ryuta Shimazaki
  • Publication number: 20100028817
    Abstract: The present invention provides a resist substrate-treating solution for improving defects on a developed pattern surface, and also provides a resist substrate treatment method employing the treating solution. The resist substrate-treating solution comprises a solvent and a nitrogen-containing or oxygen-containing water-soluble polymer such as a polyamine, a polyol or a polyether. In the treatment method, a developed resist pattern is treated with the resist substrate-treating solution and then washed with pure water.
    Type: Application
    Filed: October 12, 2007
    Publication date: February 4, 2010
    Inventors: Go Noya, Ryuta Shimazaki, Masakazu Kobayashi
  • Publication number: 20100021700
    Abstract: The present invention provides a method for miniaturizing a pattern without seriously increasing the production cost or impairing the production efficiency. This invention also provides a fine resist pattern and a resist substrate-treating solution used for forming the fine pattern. The pattern formation method comprises a treatment step. In the treatment step, a resist pattern after development is treated with a resist substrate-treating solution containing an amino group-containing, preferably, a tertiary polyamine-containing water-soluble polymer, so as to reduce the effective size of the resist pattern formed by the development. The present invention also relates to a resist pattern formed by that method, and further relates to a treating solution used in the method.
    Type: Application
    Filed: October 12, 2007
    Publication date: January 28, 2010
    Inventors: Go Noya, Ryuta Shimazaki, Masakazu Kobayashi
  • Publication number: 20100003468
    Abstract: The present invention provides a pattern-producing method for fining a developed resist pattern without increasing the production cost or impairing the production efficiency seriously. This method comprises the step of bringing a resist pattern after development into contact with a treating solution preferably containing a nonionic surfactant for 60 seconds or more, so as to reduce the effective size of the resist pattern formed by the development. The present invention also provides a resist pattern fined by that method.
    Type: Application
    Filed: June 22, 2007
    Publication date: January 7, 2010
    Inventors: Go Noya, Masakazu Kobayashi, Ryuta Shimazaki