Patents by Inventor Un Gyu Paik

Un Gyu Paik 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: 20130022870
    Abstract: An anode active material, an anode including the anode active material, a lithium battery including the anode, and a method of preparing the anode active material. The anode active material includes: a multilayer metal nanotube including: an inner layer; and an outer layer on the inner layer, wherein the inner layer includes a first metal having an atomic number equal to 13 or higher, and the outer layer includes a second metal different from the first metal.
    Type: Application
    Filed: July 11, 2012
    Publication date: January 24, 2013
    Applicants: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-man CHOI, Seung-sik HWANG, Moon-seok KWON, Min-sang SONG, Jeong-kuk SHON, Myung-hoon KIM, Han-su KIM, Un-gyu PAIK, Tae-seup SONG
  • Publication number: 20120308912
    Abstract: A catalyst slurry, an electrode prepared by using the same, and a fuel cell including the electrode. The catalyst slurry includes: a catalyst material; a binder; and a solvent including a first liquid for dissolving the binder and a second liquid having a viscosity that is higher than that of the first liquid.
    Type: Application
    Filed: June 1, 2012
    Publication date: December 6, 2012
    Inventors: Suk-gi HONG, Jung-ock PARK, Un-gyu PAIK, Ki-chun KIL, Ji-hoon SEO
  • Publication number: 20120190201
    Abstract: Provided are a multi-selective polishing slurry composition and a semiconductor element production method using the same. A silicon film provided with element patterns is formed on the uppermost part of a substrate having a first region and a second region. The element pattern density on the first region is higher than the element pattern density on the second region. Formed in sequence on top of the element patterns are a first silicon oxide film, a silicon nitride film and a second silicon oxide film. The substrate is subjected to chemical-mechanical polishing until the silicon film is exposed, by using a polishing slurry composition containing a polishing agent, a silicon nitride film passivation agent and a silicon film passivation agent.
    Type: Application
    Filed: July 9, 2010
    Publication date: July 26, 2012
    Inventors: Jea-Gun Park, Un-Gyu Paik, Jin-Hyung Park, Hao Cui, Jong-Young Cho, Hee-Sub Hwang, Jae-Hyung Lim, Ye-Hwan Kim
  • Publication number: 20120082877
    Abstract: A cathode, a method of forming the cathode and a lithium battery including the cathode. The cathode includes a current collector and a cathode active material layer disposed on the current collector; the cathode active material layer includes a lithium transition metal oxide having a spinel structure, a conductive agent, and a binder; and at least a portion of a surface of the cathode active material layer is fluorinated.
    Type: Application
    Filed: August 3, 2011
    Publication date: April 5, 2012
    Applicants: Industry-University Cooperation Foundation Hanyang University, Samsung Electronics Co., Ltd.
    Inventors: Min-sang SONG, Han-su Kim, Jae-man Choi, Moon-seok Kwon, Un-gyu Paik, Tae-seup Song
  • Patent number: 8062547
    Abstract: A CMP slurry is provided comprising polishing particles, the polishing particle comprising organically modified colloidal silica. Also, a method of preparing a CMP slurry is provided, comprising the steps of: preparing polishing particles comprising organically modified silica; converting the polishing particles into an aqueous state; and adding pure water, a hydrophilic additive and a dispersing agent to the polishing particles. The polishing particles can be synthesized using a sol-gel process. According to the invention, a slurry having excellent polishing properties can be prepared, in which the surface properties of colloidal silica are changed to control the physical properties of the polishing particles and which can ensure a desired CMP removal rate while minimizing the occurrence of scratches.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: November 22, 2011
    Assignees: K.C. Tech Co., Ltd., IUCF-HYU
    Inventors: Un Gyu Paik, Jea Gun Park, Sang Kyun Kim, Ye Hwan Kim, Myoung Won Suh, Dae Hyeong Kim
  • Publication number: 20110159367
    Abstract: A negative electrode includes nanotubes including a metal/metalloid, disposed on a conductive substrate, and having opened ends. A lithium battery includes the negative electrode.
    Type: Application
    Filed: July 30, 2010
    Publication date: June 30, 2011
    Applicants: Samsung Electronics Co., Ltd., Industry University Cooperation Foundation Hanyang University
    Inventors: Han-su KIM, Moon-seok Kwon, Jae-man Choi, Min-sang Song, Young-sin Park, Tae-seob Song, Un-gyu Paik
  • Patent number: 7833908
    Abstract: A slurry composition for chemical-mechanical polishing capable of compensating nanotopography effect present on the surface of a wafer, and a method for planarizing the surface of a semiconductor device that utilizes the same are disclosed. The slurry composition of the present invention is aimed at compensating the nanotopography effect during chemical mechanical polishing process of the oxide layer formed on the surface of the wafer, and contains abrasive particles and an additive, wherein the size of the abrasive particles and the concentration of the additive are controlled within predetermined ranges in order to control the deviation of thickness (OTD) of the oxide layer below a certain level after the chemical mechanical polishing process.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: November 16, 2010
    Assignees: Sumco Corporation, Hanyang Hak Won Co.
    Inventors: Jea Gun Park, Takeo Katoh, Won Mo Lee, Hyun Goo Kang, Sung Jun Kim, Un Gyu Paik
  • Publication number: 20100099026
    Abstract: An electrode ink composition for ink-jet printing and an electrode and secondary battery manufactured by ink-jet printing the electrode ink composition. The electrode ink composition includes an electrode active material and a solvent. A fine electrode pattern is formed by ink-jet printing the electrode ink composition, and thus a thin micro secondary battery can be manufactured.
    Type: Application
    Filed: October 14, 2009
    Publication date: April 22, 2010
    Applicants: Samsung Electronics Co., Ltd., Industry-University Cooperation Foundation Hanyang University
    Inventors: Jae-man Choi, Han-su Kim, Moon-seok Kwon, Un-gyu Paik, Jin-hyon Lee, Hyun-ho Kim, Sung-bok Wee
  • Publication number: 20090275188
    Abstract: Disclosed is a slurry for polishing a phase change material. The slurry includes an abrasive, an alkaline polishing promoter and deionized water. Due to the use of the abrasive and the alkaline polishing promoter, the pH of the slurry is adjusted, the polishing rate of the phase change material is improved, and the polishing selectivity of the phase change material to an underlying insulating layer is increased. Further disclosed is a method for patterning a phase change material using the slurry.
    Type: Application
    Filed: March 27, 2009
    Publication date: November 5, 2009
    Inventors: Jea Gun Park, Un Gyu Paik, Jin Hyung Park, Hee Sub Hwang, Hao Cui, Jong Young Cho, Woong Jun Hwang, Ye Hwan Kim
  • Publication number: 20090133336
    Abstract: Disclosed is a polishing slurry, particularly, a slurry for chemical mechanical polishing, which is used in a chemical mechanical polishing process for flattening a semiconductor laminate. More particularly, the present invention provides a method of producing a slurry which has high removal selectivity to a nitride layer used as a barrier film in a shallow trench isolation CMP process needed to fabricate ultra highly integrated semiconductors of 256 mega D-RAM or more (Design rule of 0.13 ?m or less) and which decreases the occurrence of scratches on a flattened surface, and a method of polishing a substrate using the same.
    Type: Application
    Filed: December 11, 2008
    Publication date: May 28, 2009
    Applicants: K.C. TECH CO., LTD., IUCF-HYU
    Inventors: Dae Hyeong Kim, Seok Min Hong, Jae Hyun Jeon, Un Gyu Paik, Jea Gun Park, Yong Kuk Kim
  • Publication number: 20090108236
    Abstract: A composition for a plasma display device includes inorganic material particles, a composite of an acidic dispersant and a basic dispersant, a binder, and a solvent.
    Type: Application
    Filed: September 15, 2008
    Publication date: April 30, 2009
    Inventors: Hui-Young Ku, Ki-Jun Kim, Yoo-Jung Lee, Na-Ri Seo, Un-Gyu Paik, Chae-Woong Cho
  • Publication number: 20090100765
    Abstract: Disclosed is a polishing slurry, particularly, a slurry for chemical mechanical polishing, which is used in a chemical mechanical polishing process for flattening a semiconductor laminate. More particularly, the present invention provides a method of producing a slurry which has high removal selectivity to a nitride layer used as a barrier film in a shallow trench isolation CMP process needed to fabricate ultra highly integrated semiconductors of 256 mega D-RAM or more (Design rule of 0.13 ?m or less) and which decreases the occurrence of scratches on a flattened surface, and a method of polishing a substrate using the same.
    Type: Application
    Filed: December 11, 2008
    Publication date: April 23, 2009
    Applicants: K.C. TECH CO., LTD., IUCF-HYU
    Inventors: Dae Hyeong Kim, Seok Min Hong, Jae Hyun Jeon, Un Gyu Paik, Jea Gun Park, Yong Kuk Kim
  • Patent number: 7470295
    Abstract: Disclosed herein is a polishing slurry for chemical mechanical polishing. The polishing slurry comprises polishing particles, which have a particle size distribution including separated fine and large polishing particle peaks. The polishing slurry also comprises polishing particles, which have a median size of 50-150 nm. The present invention provides the slurry having an optimum polishing particle size, in which the polishing particle size is controlled and which is useful to produce semiconductors having fine design rules by changing the production conditions of the slurry. The present invention also provides the polishing slurry and a method of producing the same, in which a desirable CMP removal rate is assured and scratches are suppressed by controlling a polishing particle size distribution, and a method of polishing a substrate.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: December 30, 2008
    Assignees: K.C. Tech Co., Ltd., IUCF-HYU
    Inventors: Dae Hyung Kim, Seok Min Hong, Jae Hyun Jeon, Ho Seong Kim, Hyun Soo Park, Un Gyu Paik, Jae Gun Park, Yong Kuk Kim
  • Patent number: 7364600
    Abstract: Disclosed herein is a polishing slurry and a method of producing the same. The polishing slurry has high selectivity in terms of a polishing speed of an oxide layer to that of a nitride layer used in CMP of an STI process which is essential to produce ultra highly integrated semiconductors having a design rule of 256 mega D-RAM or more, for example, a design rule of 0.13 ?m or less. A method and a device for pre-treating polishing particles, a dispersing device and a method of operating the dispersing device, a method of adding a chemical additive and an amount added, and a device for transferring samples are properly employed to produce a high performance nano ceria slurry essential to CMP for a process of producing ultra highly integrated semiconductors of 0.13 ?m or less, particularly, the STI process.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: April 29, 2008
    Assignees: K.C. Tech Co., Ltd., IUCF-HYU
    Inventors: Dae Hyeong Kim, Seok Min Hong, Jae Hyun Jeon, Ho Seong Kim, Hyun Soo Park, Un Gyu Paik, Jae Gun Park, Yong Kuk Kim
  • Publication number: 20060207188
    Abstract: The present invention relates to a CMP abrasive comprising a ceria slurry and a chemical additive having two or more functional groups by mixing and synthesizing a polymeric molecule and a monomer. Also, the present invention relates to a method for a manufacturing CMP abrasive by providing a ceria slurry, manufacturing a chemical additive having two or more functional groups by mixing and synthesizing of the polymeric molecule and the monomer in a reactor, and mixing said slurry and said chemical additive. Therefore, when the abrasive according to the present invention is used as an STI CMP abrasive, it is possible to apply the abrasive to the patterning process required in the very large scale integration semiconductor process. Furthermore, the CMP abrasive of the present invention has a superior removal rate, superior polishing selectivity, superior within wafer non-uniformity (WIWNU), and minimized occurrence of micro scratches.
    Type: Application
    Filed: May 14, 2004
    Publication date: September 21, 2006
    Inventors: Un-Gyu Paik, Jea-Gun Park, Sang-Kyun Kim, Takeo Katoh, Yong-Kook Park