Patents by Inventor Sang Tae Ahn

Sang Tae Ahn 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: 8530330
    Abstract: A method for manufacturing a semiconductor device that can prevent the loss of an isolation structure and that can also stably form epi-silicon layers is described. The method for manufacturing a semiconductor device includes defining trenches in a semiconductor substrate having active regions and isolation regions. The trenches are partially filled with a first insulation layer. An etch protection layer is formed on the surfaces of the trenches that are filled with the first insulation layer. A second insulation layer is filled in the trenches formed with the etch protection layer to form an isolation structure in the isolation regions of the semiconductor substrate. Finally, portions of the active regions of the semiconductor substrate are recessed such that the isolation structure has a height higher than the active regions of the semiconductor substrate.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: September 10, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventors: Sang Tae Ahn, Ja Chun Ku, Eun Jeong Kim, Wan Soo Kim
  • Patent number: 8507665
    Abstract: A reactive cyclodextrin derivative or a reactive glucose derivative is used as a template derivative for forming an ultra-low dielectric layer. A layer is formed of the reactive cyclodextrin derivative or the reactive glucose derivative capped with Si—H and then cured in an atmosphere of hydrogen peroxide to form the ultra-low dielectric layer.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: August 13, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventors: Sung Kyu Min, Ja Chun Ku, Sang Tae Ahn, Chai O Chung, Hyeon Ju An, Hyo Seok Lee, Eun Jeong Kim, Chan Bae Kim
  • Publication number: 20130160636
    Abstract: An apparatus for opening and closing a breech block includes a cam follower, a housing, a first plunger, a rotation unit, a pressurizing unit, an open cam, a first elastic member, and a second plunger. In the present invention, in a state that the open cam is out of the range of a moving path of the cam follower so as to restrict rotation of the cam follower, the second plunger is inserted into the housing so as to support the pressurizing unit. This may allow a closed state of the breech block to be maintained after firing. Furthermore, in the present invention, a closed mode of the breech block may be converted into an open mode, through simple manipulations, e.g., by rotating the rotation unit, i.e., by moving the pressurizing unit.
    Type: Application
    Filed: December 27, 2011
    Publication date: June 27, 2013
    Inventors: Sang-Tae AHN, Kuk-Jeong KANG, Tae-Ho HAN, Cheon-Gon JEON
  • Publication number: 20130163345
    Abstract: A method of operating a semiconductor memory device includes an operation of applying a first voltage to selected bit lines, a second voltage to unselected bit lines and a common source line, and turning on drain and source selection transistors, an operation of applying a program voltage to a selected word line and a switch voltage to a switch word line, and applying a first pass voltage to first unselected word lines disposed between the switch word line and a common source line and between the selected word line and a bit line, and elevating the switch voltage to generate hot electrons and inject the hot electrons to a selected memory cell of the selected word line to program the selected cell.
    Type: Application
    Filed: September 6, 2012
    Publication date: June 27, 2013
    Inventors: Sang Tae AHN, Gyu Seog Cho, Chae Moon Lim, Yoo Nam Jeon, Seung Hwan Baik, Hee Jin Lee, Jae Seok Kim, Kyung Sik Mun, U Seon Im
  • Publication number: 20130160637
    Abstract: An apparatus for collecting an empty cartridge includes a bracket, an operation pin, an upper link, a lower link, and a collecting unit, wherein when a cannon barrel forward moves, the lower link rotates by being engaged with the upper link as the operation pin slides on the upper link, and the collecting unit is unfolded such that the empty cartridge is collected after a bump.
    Type: Application
    Filed: December 27, 2011
    Publication date: June 27, 2013
    Inventors: Sang-Tae AHN, Kuk-Jeong KANG, Suk-Kyun HONG, Chul-Mo YEO
  • Publication number: 20130157453
    Abstract: A method of manufacturing a semiconductor device includes forming first auxiliary patterns, alternately forming first material layers and second material layers on the sidewalls of the first auxiliary patterns so that a gap region between the first auxiliary patterns adjacent to each other is filled, removing the second material layers, and forming charge storage layers in respective regions from which the second material layers have been removed.
    Type: Application
    Filed: September 1, 2012
    Publication date: June 20, 2013
    Applicant: SK HYNIX INC.
    Inventor: Sang Tae Ahn
  • Patent number: 8354350
    Abstract: A reactive cyclodextrin derivative or a reactive glucose derivative is used as a template derivative for forming an ultra-low dielectric layer. A layer is formed of the reactive cyclodextrin derivative or the reactive glucose derivative capped with Si—H and then cured in an atmosphere of hydrogen peroxide to form the ultra-low dielectric layer.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: January 15, 2013
    Assignee: Hynix Semiconductor Inc.
    Inventors: Sung Kyu Min, Ja Chun Ku, Sang Tae Ahn, Chai O Chung, Hyeon Ju An, Hyo Seok Lee, Eun Jeong Kim, Chan Bae Kim
  • Publication number: 20120231635
    Abstract: A reactive cyclodextrin derivative or a reactive glucose derivative is used as a template derivative for forming an ultra-low dielectric layer. A layer is formed of the reactive cyclodextrin derivative or the reactive glucose derivative capped with Si—H and then cured in an atmosphere of hydrogen peroxide to form the ultra-low dielectric layer.
    Type: Application
    Filed: May 18, 2012
    Publication date: September 13, 2012
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Sung Kyu MIN, Ja Chun KU, Sang Tae AHN, Chai O CHUNG, Hyeon Ju AN, Hyo Seok LEE, Eun Jeong KIM, Chan Bae KIM
  • Publication number: 20120231634
    Abstract: A reactive cyclodextrin derivative or a reactive glucose derivative is used as a template derivative for forming an ultra-low dielectric layer. A layer is formed of the reactive cyclodextrin derivative or the reactive glucose derivative capped with Si—H and then cured in an atmosphere of hydrogen peroxide to form the ultra-low dielectric layer.
    Type: Application
    Filed: May 18, 2012
    Publication date: September 13, 2012
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Sung Kyu MIN, Ja Chun KU, Sang Tae AHN, Chai O CHUNG, Hyeon Ju AN, Hyo Seok LEE, Eun Jeong KIM, Chan Bae KIM
  • Patent number: 8222110
    Abstract: A method for fabricating a semiconductor device includes forming a plurality of first active pillars by etching a substrate using a hard mask layer as an etching barrier, forming a gate conductive layer surrounding sidewalls of the first active pillars and the hard mask layer, forming a word line conductive layer filling gaps defined by the gate conductive layer, forming word lines and vertical gates by simultaneously removing portions of the word line conductive layer and the gate conductive layer on the sidewalls of the hard mask layer, forming an inter-layer dielectric layer filling gaps formed by removing the word line conductive layer and the gate conductive layer, exposing surfaces of the first active pillars by removing the hard mask layer, and growing second active pillars over the first active pillars.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: July 17, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Eun-Jeong Kim, Sang-Tae Ahn
  • Patent number: 8202807
    Abstract: A reactive cyclodextrin derivative or a reactive glucose derivative is used as a template derivative for forming an ultra-low dielectric layer. A layer is formed of the reactive cyclodextrin derivative or the reactive glucose derivative capped with Si—H and then cured in an atmosphere of hydrogen peroxide to form the ultra-low dielectric layer.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: June 19, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Sung Kyu Min, Ja Chun Ku, Chan Bae Kim, Sang Tae Ahn, Chai O Chung, Hyeon Ju An, Hyo Seok Lee, Eun Jeong Kim
  • Patent number: 8178921
    Abstract: A semiconductor device includes a semiconductor substrate having an active region which includes a gate forming zone and an isolation region; an isolation layer formed in the isolation region of the semiconductor substrate to expose side surfaces of a portion of the active region including the gate forming zone, such that the portion of the active region including the gate forming zone constitutes a fin pattern; a silicon epitaxial layer formed on the active region including the fin pattern; and a gate formed to cover the fin pattern on which the silicon epitaxial layer is formed.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: May 15, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Dong Sun Sheen, Sang Tae Ahn, Seok Pyo Song, Hyeon Ju An
  • Publication number: 20110003447
    Abstract: A method for fabricating a semiconductor device includes forming a plurality of first active pillars by etching a substrate using a hard mask layer as an etching barrier, forming a gate conductive layer surrounding sidewalls of the first active pillars and the hard mask layer, forming a word line conductive layer filling gaps defined by the gate conductive layer, forming word lines and vertical gates by simultaneously removing portions of the word line conductive layer and the gate conductive layer on the sidewalls of the hard mask layer, forming an inter-layer dielectric layer filling gaps formed by removing the word line conductive layer and the gate conductive layer, exposing surfaces of the first active pillars by removing the hard mask layer, and growing second active pillars over the first active pillars.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 6, 2011
    Inventors: Eun-Jeong KIM, Sang-Tae Ahn
  • Publication number: 20100261355
    Abstract: A method for forming a high quality insulation layer on a semiconductor device is presented. The method includes a first step of supplying any one of a silicon source gas and an oxygen source gas into a process chamber in which a semiconductor substrate is placed; a second step of simultaneously supplying the silicon source gas and the oxygen source gas into the process chamber having undergone the first step and depositing a silicon oxide layer on the semiconductor substrate; and a third step of supplying any one of the silicon source gas and the oxygen source gas into the process chamber having undergone the second step.
    Type: Application
    Filed: June 29, 2009
    Publication date: October 14, 2010
    Inventors: Sang Tae AHN, Ja Chun KU, Seung Joon JEON
  • Patent number: 7763523
    Abstract: A method for forming a device isolation structure of a semiconductor device using at least three annealing steps to anneal a flowable insulation layer is presented. The method includes the steps of forming a hard mask pattern on a semiconductor substrate having active regions exposing a device isolation region of the semiconductor substrate; etching the device isolation region of the semiconductor substrate exposed through the hard mask pattern, and therein forming a trench; forming a flowable insulation layer to fill a trench; first annealing the flowable insulation layer at least three times; second annealing the first annealed flowable insulation layer; removing the second annealed flowable insulation layer until the hard mask pattern is exposed; and removing the exposed hard mask pattern.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: July 27, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Sang Tae Ahn, Ja Chun Ku, Eun Jeong Kim
  • Publication number: 20100090290
    Abstract: A semiconductor device includes a semiconductor substrate having an active region which includes a gate forming zone and an isolation region; an isolation layer formed in the isolation region of the semiconductor substrate to expose side surfaces of a portion of the active region including the gate forming zone, such that the portion of the active region including the gate forming zone constitutes a fin pattern; a silicon epitaxial layer formed on the active region including the fin pattern; and a gate formed to cover the fin pattern on which the silicon epitaxial layer is formed.
    Type: Application
    Filed: December 15, 2009
    Publication date: April 15, 2010
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Dong Sun SHEEN, Sang Tae AHN, Seok Pyo SONG, Hyeon Ju AN
  • Patent number: 7687371
    Abstract: An isolation structure of a semiconductor device is formed by forming a hard mask layer on a semiconductor substrate having active and field regions to expose the field region. A trench is defined by etching the exposed field region of the semiconductor substrate using the hard mask as an etch mask. An SOG layer is formed in the trench partially filling the trench. An amorphous aluminum oxide layer is formed on the resultant substrate including the SOG layer. An HDP layer is formed on the amorphous aluminum oxide layer to completely fill the trench. The HDP layer and the amorphous aluminum oxide layer are subjected to CMP to expose the hard mask. The hard mask and portions of the amorphous aluminum oxide layer that are formed on the HDP layer are removed. The amorphous aluminum oxide layer is crystallized.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: March 30, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Dong Sun Sheen, Seok Pyo Song, Sang Tae Ahn, Hyeon Ju An
  • Patent number: 7655534
    Abstract: A fin transistor is formed by forming a hard mask layer on a substrate having an active region and a field region. The hard mask layer is etched to expose the field region. A trench is formed by etching the exposed field region. The trench is filled with an SOG layer. The hard mask layer is removed to expose the active region. An epi-silicon layer is formed on the exposed active region. The SOG layer is then partially etched from the upper end of the trench, thus filling a lower portion of the trench. A HDP oxide layer is deposited on the etched SOG layer filling the trench, thereby forming a field oxide layer composed of the SOG layer and the HDP oxide. The HDP oxide layer in the field oxide layer is etched to expose both side surfaces of the epi-silicon layer. A gate is then formed on the epi-silicon layer of which both side surfaces are exposed and the field oxide layer.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: February 2, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Dong Sun Sheen, Seok Pyo Song, Sang Tae Ahn, Hyun Chul Sohn
  • Patent number: 7655533
    Abstract: A semiconductor device includes a semiconductor substrate having an active region which includes a gate forming zone and an isolation region; an isolation layer formed in the isolation region of the semiconductor substrate to expose side surfaces of a portion of the active region including the gate forming zone, such that the portion of the active region including the gate forming zone constitutes a fin pattern; a silicon epitaxial layer formed on the active region including the fin pattern; and a gate formed to cover the fin pattern on which the silicon epitaxial layer is formed.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: February 2, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Dong Sun Sheen, Sang Tae Ahn, Seok Pyo Song, Hyeon Ju An
  • Patent number: 7563654
    Abstract: A method for manufacturing a semiconductor device is disclosed. The method includes the steps of defining a trench into a field region of a semiconductor substrate having an active region and the field region; partially filing the trench with a flowable insulation layer; completely filling the trench with an isolation structure by depositing a close-packed insulation layer on the flowable insulation layer in the trench; etching through a portion of the close-packed insulation layer and etching into a partial thickness of the flowable insulation layer of the insulation structure to expose a portion of the active region; cleaning the resultant substrate having the active region relatively projected; forming spacers on etched portions of the flowable insulation layer where bowing occurs during the cleaning step; and forming gates on the active region and the insulation structure to border the exposed portion of the active region.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: July 21, 2009
    Assignee: Hynix Semiconductor Inc.
    Inventors: Dong Sun Sheen, Seok Pyo Song, Sang Tae Ahn, Hyeon Ju An, Hyun Chul Sohn