Patents by Inventor Koji Nozaki

Koji Nozaki 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).

  • Publication number: 20070048660
    Abstract: A composition contains a resist material and an ammonium sulfate. A resist pattern formed from the composition can be uniformly thickened by a resist thickening material, thereby allowing formation of fine patterns beyond the resolution limit of the exposure devices.
    Type: Application
    Filed: January 27, 2006
    Publication date: March 1, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Koji Nozaki, Takahisa Namiki, Miwa Kozawa
  • Publication number: 20070003862
    Abstract: The resist composition of the present invention contains at least one of a tannin and a derivative thereof. The method of forming a resist pattern of the present invention includes: forming a resist film on a surface of an object to be processed, by using the resist composition; and exposing and developing the resist film. The method of manufacturing a semiconductor device of the present invention includes: forming a resist film on a surface of an object to be processed, by using the resist composition; exposing and developing the resist film to form a resist pattern; and patterning the surface of the object by performing an etching through the resist pattern as a mask.
    Type: Application
    Filed: September 29, 2005
    Publication date: January 4, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Takahisa Namiki, Koji Nozaki, Miwa Kozawa
  • Publication number: 20060263723
    Abstract: A negative resist composition containing an alkaline-soluble resin as a base material, in which an oxetane structure represented by the following formula (1): is contained in a structure of the alkaline-soluble resin or in a structure of a compound used in combination with the alkaline-soluble resin, is disclosed.
    Type: Application
    Filed: July 26, 2006
    Publication date: November 23, 2006
    Applicant: FUJITSU LIMITED
    Inventors: Miwa Kozawa, Koji Nozaki, Keiji Watanabe, Ei Yano
  • Patent number: 7122288
    Abstract: A negative resist composition containing an alkaline-soluble resin as a base material, in which an oxetane structure represented by the following formula (1): is contained in a structure of the alkaline-soluble resin or in a structure of a compound used in combination with the alkaline-soluble resin, is disclosed.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: October 17, 2006
    Assignee: Fujitsu Limited
    Inventors: Miwa Kozawa, Koji Nozaki, Keiji Watanabe, Ei Yano
  • Publication number: 20060188807
    Abstract: The present invention provides a resist pattern thickening material, which can utilize ArF excimer laser light; which, when applied over a resist pattern to be thickened e.g., in form of lines and spaces pattern, can thicken the resist pattern to be thickened regardless of the size of the resist pattern to be thickened; and which is suited for forming a fine space pattern or the like, exceeding exposure limits. The present invention also provides a process for forming a resist pattern and a process for manufacturing a semiconductor device, wherein the resist pattern thickening material of the present invention is suitably utilized.
    Type: Application
    Filed: January 20, 2006
    Publication date: August 24, 2006
    Applicant: FUJITSU LIMITED
    Inventors: Koji Nozaki, Miwa Kozawa, Takahisa Narriki
  • Publication number: 20060188805
    Abstract: The present invention provides a resist pattern thickening material, which can utilize ArF excimer laser light; which, when applied over a resist pattern to be thickened e.g., in form of lines and spaces pattern, can thicken the resist pattern to be thickened regardless of the size of the resist pattern to be thickened; and which is suited for forming a fine space pattern or the like, exceeding exposure limits. The present invention also provides a process for forming a resist pattern and a process for manufacturing a semiconductor device, wherein the resist pattern thickening material of the present invention is suitably utilized.
    Type: Application
    Filed: May 27, 2005
    Publication date: August 24, 2006
    Applicant: FUJITSU LIMITED
    Inventors: Koji Nozaki, Takahisa Namiki, Miwa Kozawa
  • Publication number: 20060073419
    Abstract: The object of the present invention is to provide a process for forming a resist pattern that is capable to utilize excimer laser beam, the thickening level of the resist pattern is controllable uniformly, constantly and precisely, without being affected substantially by environmental changes such as temperatures and humidity, and storage period, and space pattern of resist may be formed with a fineness exceeding exposure limits or resolution limits of available irradiation sources. The process for producing a semiconductor device is characterized in that forming a resist pattern on a surface of workpiece, coating a resist pattern thickening material on the resist pattern, thickening the resist pattern to form a thickened resist pattern, and patterning the surface of workpiece by etching using the thickened resist pattern as a mask, wherein the resist pattern thickening material comprises a resin, and exhibits a pH value of above 7 and not over 14 at coating or after coating on the resist pattern.
    Type: Application
    Filed: January 31, 2005
    Publication date: April 6, 2006
    Applicant: FUJITSU LIMITED
    Inventors: Miwa Kozawa, Koji Nozaki, Takahisa Namiki
  • Publication number: 20060073420
    Abstract: The present invention provides a resist pattern thickening material and the like which can thicken a resist pattern and form a fine space pattern. The resist pattern thickening material contains: a resin; a crosslinking agent; and at least one type selected from cationic surfactants, amphoteric surfactants, and non-ionic surfactants selected from alkoxylate surfactants, fatty acid ester surfactants, amide surfactants, alcohol surfactants, and ethylene diamine surfactants. In a process for forming a resist pattern of the present invention, after a resist pattern is formed, the thickening material is applied onto a surface of the pattern. A process for manufacturing a semiconductor device of the present invention includes: after forming a resist pattern on an underlying layer, applying the thickening material on a surface of the pattern so as to thicken the pattern; and a step of patterning the underlying layer by etching by using the pattern.
    Type: Application
    Filed: November 22, 2005
    Publication date: April 6, 2006
    Applicant: FUJITSU LIMITED
    Inventors: Koji Nozaki, Miwa Kozawa
  • Publication number: 20060046446
    Abstract: A method for manufacturing a semiconductor device includes a step of forming a layer where a gate electrode aperture is to be formed including at least one ultraviolet resist layer on the surface where a gate electrode is to be formed, and forming a gate electrode aperture in the layer where a gate electrode aperture is to be formed; a step of forming a layer where an over-gate is to be formed in which an over-gate part of a gate electrode is to be formed, on the layer where a gate electrode aperture is to be formed; a step of reducing the width of the gate electrode aperture; and a step of forming the gate electrode in the gate electrode aperture. The method makes it possible to efficiently produce a fine gate electrode by thickening the gate electrode aperture and reducing the width of the gate electrode aperture.
    Type: Application
    Filed: December 28, 2004
    Publication date: March 2, 2006
    Applicant: FUJITSU LIMITED
    Inventors: Junichi Kon, Koji Nozaki, Kozo Makiyama, Toshihiro Ohki
  • Publication number: 20060023599
    Abstract: An available term of use of the player is set in terms of the number of dates or a playing time. If it is determined by a lock-setting determining unit that the player is lock-set when an optical disk is loaded, the player is lock-released by a lock releasing unit. After the player has been lock-released, if the available term is extended as a result that it is determined by an available term determining unit that the available term has expired or if it is determined that the available term has not expired yet, a playing start processing unit proceeds to processing of starting the playing. If the available term has expired, but should not be extended, the player is lock-set by a lock setting unit.
    Type: Application
    Filed: July 26, 2005
    Publication date: February 2, 2006
    Inventor: Koji Nozaki
  • Publication number: 20050277054
    Abstract: The present invention provides a resist pattern thickening material which can thicken a resist pattern and form a fine space pattern, exceeding exposure limits of exposure light used during patterning. The resist pattern thickening material contains a resin and a polyhydric alcohol. The present invention also provides a process for forming a resist pattern and a process for manufacturing a semiconductor device, wherein the resist pattern thickening material of the present invention is suitably utilized.
    Type: Application
    Filed: October 28, 2004
    Publication date: December 15, 2005
    Inventors: Koji Nozaki, Takahisa Namiki, Miwa Kozawa
  • Publication number: 20050269290
    Abstract: The present invention provides a surface-modified resist pattern which contains a resist pattern having low etch resistance by itself but having a modified and etch-resistant surface and is suitable for fine and high-definition patterning, and a method for efficiently forming the same. The method forms a surface-modified resist pattern having an etch-resistant surface by selectively depositing an organic compound on a resist pattern. The deposition is preferably carried out by using plasma of a gas. The method preferably includes arranging the organic compound so as to face the resist pattern, the organic compound having been deposited on a base material, and depositing the organic compound onto the resist pattern. The plasma of the gas is preferably introduced from an opposite side of the base material to the organic compound deposited thereon.
    Type: Application
    Filed: August 18, 2005
    Publication date: December 8, 2005
    Applicant: FUJITSU LIMITED
    Inventors: Koji Nozaki, Masayuki Takeda
  • Publication number: 20050244144
    Abstract: An optical disk device includes an intermittent reproducing unit to perform an intermittent reproducing process to reproduce data recorded on an optical disk in a forward or reverse direction and at specific time intervals, each removing predetermined amount of data, an intermittent reproduction start instruction unit, upon receiving an instruction to start the intermittent reproducing process, to designate an intermittent reproduction start position and an intermittent reproducing direction, and to issue an instruction, and a storage unit to store the intermittent reproduction start position as information concerning a recording position for data skipped and unreproduced during a current intermittent reproducing process, when the instruction is issued.
    Type: Application
    Filed: April 27, 2005
    Publication date: November 3, 2005
    Inventor: Koji Nozaki
  • Publication number: 20050159009
    Abstract: The present invention provides a method of manufacturing a gate electrode in which a fine gate electrode can effectively be manufactured by thickening a resist opening for gate electrodes formed by ordinary electron beam lithography so as to reduce opening dimensions. The method of manufacturing a gate electrode of the present invention includes a step of forming a laminated resist including at least an electron beam resist layer as a lowermost layer on a surface where a gate electrode is to be formed; a step of forming an opening in layer(s) other than the lowermost layer; a step of forming a gate electrode opening on the lowermost layer exposed from the opening; a step of reducing the gate electrode opening selectively; and a step of forming a gate electrode in the gate electrode opening.
    Type: Application
    Filed: February 23, 2005
    Publication date: July 21, 2005
    Applicant: FUJITSU LIMITED
    Inventors: Kozo Makiyama, Koji Nozaki
  • Patent number: 6887644
    Abstract: A resist composition includes a polymer principal chain, a carboxyl group having a protective group and bonding to a side chain of the polymer main chain, and an additional acidic functional group having an acid-cleavable protective group and bonding to a side chain of the polymer main chain, wherein the carboxyl group has a lactone structure represented by a formula (wherein n is an integer of 1-4, and R represents any of a hydrogen atom, an alkyl group, an alkoxyl group and an alkoxycarbonyl group and connected to an arbitrary position of said lactone structure excluding a second position forming an ester bonding) as the protective group.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: May 3, 2005
    Assignee: Fujitsu Limited
    Inventors: Koji Nozaki, Ei Yano
  • Publication number: 20050031987
    Abstract: The present invention provides a resist pattern thickening material which can thicken a resist pattern and form a fine space pattern, exceeding exposure limits of exposure light used during patterning. The resist pattern thickening material contains a resin and a phase transfer catalyst. The present invention also provides a process for forming a resist pattern and a process for manufacturing a semiconductor device, wherein the resist pattern thickening material of the present invention is suitably utilized.
    Type: Application
    Filed: August 3, 2004
    Publication date: February 10, 2005
    Applicant: FUJITSU LIMITED
    Inventors: Koji Nozaki, Miwa Kozawa
  • Patent number: 6844135
    Abstract: A chemically amplified resist material comprising a base resin and a photo acid generator having sensitivity at the wavelength of patterning exposure; wherein, the chemically amplified resist material further comprising an activator that generates an acid or a radical by a treatment other than the patterning exposure. A patterning method using the same is also disclosed.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: January 18, 2005
    Assignee: Fujitsu Limited
    Inventors: Junichi Kon, Koji Nozaki, Ei Yano
  • Patent number: 6794112
    Abstract: The negative resist composition comprises (1) a film-forming polymer which is itself soluble in basic aqueous solutions, and contains a first monomer unit with an alkali-soluble group in the molecule and a second monomer unit with an alcohol structure on the side chain which is capable of reacting with the alkali-soluble group, and (2) a photo acid generator which, when decomposed by absorption of image-forming radiation, is capable of generating an acid that can induce reaction between the alcohol structure of the second monomer unit and the alkali-soluble group of the first monomer unit, or protect the alkali-soluble group of the first monomer unit. The resist composition can form intricate negative resist patterns with practical sensitivity and no swelling.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: September 21, 2004
    Assignee: Fujitsu Limited
    Inventors: Koji Nozaki, Takahisa Namiki, Ei Yano, Junichi Kon, Miwa Kozawa
  • Patent number: 6794113
    Abstract: The negative resist composition comprises (1) a film-forming polymer which is itself soluble in basic aqueous solutions, and contains a first monomer unit with an alkali-soluble group in the molecule and a second monomer unit with an alcohol structure on the side chain which is capable of reacting with the alkali-soluble group, and (2) a photo acid generator which, when decomposed by absorption of image-forming radiation, is capable of generating an acid that can induce reaction between the alcohol structure of the second monomer unit and the alkali-soluble group of the first monomer unit, or protect the alkali-soluble group of the first monomer unit. The resist composition can form intricate negative resist patterns with practical sensitivity and no swelling.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: September 21, 2004
    Assignee: Fujitsu Limited
    Inventors: Koji Nozaki, Takahisa Namiki, Ei Yano, Junichi Kon, Miwa Kozawa
  • Patent number: 6787288
    Abstract: The negative resist composition comprises (1) a film-forming polymer which is itself soluble in basic aqueous solutions, and contains a first monomer unit with an alkali-soluble group in the molecule and a second monomer unit with an alcohol structure on the side chain which is capable of reacting with the alkali-soluble group, and (2) a photo acid generator which, when decomposed by absorption of image-forming radiation, is capable of generating an acid that can induce reaction between the alcohol structure of the second monomer unit and the alkali-soluble group of the first monomer unit, or protect the alkali-soluble group of the first monomer unit. The resist composition can form intricate negative resist patterns with practical sensitivity and no swelling.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: September 7, 2004
    Assignee: Fujitsu Limited
    Inventors: Koji Nozaki, Takahisa Namiki, Ei Yano, Junichi Kon, Miwa Kozawa