Patents by Inventor Tac Keun Oh

Tac Keun Oh 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: 8338921
    Abstract: A wafer level chip scale package having an enhanced heat exchange efficiency with an EMF shield is presented. The wafer level chip scale package includes a semiconductor chip, an insulation layer, and a metal plate. The semiconductor chip has a plurality of bonding pads on an upper face thereof. The insulation layer is disposed over the upper face of the semiconductor chip and has openings that expose some portions of the bonding pads. The metal plate covers an upper face of the insulation layer and side faces of the semiconductor chip in which the metal plate is electrically insulated from the bonding pads.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: December 25, 2012
    Assignee: SK Hynix Inc.
    Inventors: Chang Jun Park, Kwon Whan Han, Seong Cheol Kim, Sung Min Kim, Hyeong Seok Choi, Ha Na Lee, Tac Keun Oh, Sang Joon Lim
  • Publication number: 20120205816
    Abstract: A semiconductor chip includes a substrate having a front surface and a back surface opposite the front surface, a conductive column part passing through the substrate from the front surface to the back surface, a cavity formed by removing a part of the back surface around an end portion of the conductive column part such that the end portion of the conductive column part protrudes from the cavity, a first insulation layer formed in the cavity such that a portion of the end portion of the conductive column part is exposed, and a back electrode electrically connected to the exposed end portion of the conductive column part.
    Type: Application
    Filed: February 10, 2012
    Publication date: August 16, 2012
    Applicant: Hynix Semiconductor Inc.
    Inventors: Ho Young SON, Tac Keun OH
  • Patent number: 8198136
    Abstract: A stacked semiconductor package and a method for manufacturing the same. The stacked semiconductor package includes a semiconductor chip module having two or more semiconductor chips which are stacked in the shape of steps. Each of the semiconductor chips includes pads located on an upper surface thereof and an inclined side surface connected with the upper surface. Connection patterns are formed in the shape of lines on the inclined side surfaces and the upper surfaces of the semiconductor chips to electrically connect pads of the semiconductor chips.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: June 12, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventor: Tac Keun Oh
  • Publication number: 20120138925
    Abstract: A semiconductor chip includes: a first substrate having a first surface and a second surface facing away from the first surface; a first test through silicon via (TSV) passing through the first substrate from the first surface to the second surface; and a conductive protrusion coupled to the first test TSV and protruding from the second surface.
    Type: Application
    Filed: November 30, 2011
    Publication date: June 7, 2012
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Tac Keun OH
  • Publication number: 20120049385
    Abstract: A wafer level chip scale package having an enhanced heat exchange efficiency with an EMF shield is presented. The wafer level chip scale package includes a semiconductor chip, an insulation layer, and a metal plate. The semiconductor chip has a plurality of bonding pads on an upper face thereof. The insulation layer is disposed over the upper face of the semiconductor chip and has openings that expose some portions of the bonding pads. The metal plate covers an upper face of the insulation layer and side faces of the semiconductor chip in which the metal plate is electrically insulated from the bonding pads.
    Type: Application
    Filed: November 4, 2011
    Publication date: March 1, 2012
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Chang Jun PARK, Kwon Whan HAN, Seong Cheol KIM, Sung Min KIM, Hyeong Seok CHOI, Ha Na LEE, Tac Keun OH, Sang Joon LIM
  • Publication number: 20120013016
    Abstract: A flexible semiconductor package apparatus having a responsive bendable conductive wire member is presented. The apparatus includes a flexible substrate, semiconductor chips, and conductive wires. The semiconductor chips are disposed on the flexible substrate and spaced apart from each other on the flexible substrate. Each semiconductor chip has bonding pads. The conductive wires are electrically connected to the bonding pads of the semiconductor chip. Each conductive wire has at least one elastic portion. One preferred configuration is that part of the conductive wire is wound to form a coil spring shape so that the coil spring shape of the conductive wire aid in preventing the conductive wire from being separated from the corresponding bonding pad of the semiconductor chip when the flexible substrate on which the semiconductor chips are mounted are bent, expanded or twisted.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Inventors: Tac Keun OH, Sung Min KIM
  • Patent number: 8049332
    Abstract: A flexible semiconductor package apparatus having a responsive bendable conductive wire member is presented. The apparatus includes a flexible substrate, semiconductor chips, and conductive wires. The semiconductor chips are disposed on the flexible substrate and spaced apart from each other on the flexible substrate. Each semiconductor chip has bonding pads. The conductive wires are electrically connected to the bonding pads of the semiconductor chip. Each conductive wire has at least one elastic portion. One preferred configuration is that part of the conductive wire is wound to form a coil spring shape so that the coil spring shape of the conductive wire aid in preventing the conductive wire from being separated from the corresponding bonding pad of the semiconductor chip when the flexible substrate on which the semiconductor chips are mounted are bent, expanded or twisted.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: November 1, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Tac Keun Oh, Sung Min Kim
  • Publication number: 20110033978
    Abstract: A stacked semiconductor package and a method for manufacturing the same. The stacked semiconductor package includes a semiconductor chip module having two or more semiconductor chips which are stacked in the shape of steps. Each of the semiconductor chips includes pads located on an upper surface thereof and an inclined side surface connected with the upper surface. Connection patterns are formed in the shape of lines on the inclined side surfaces and the upper surfaces of the semiconductor chips to electrically connect pads of the semiconductor chips.
    Type: Application
    Filed: October 14, 2010
    Publication date: February 10, 2011
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Tac Keun OH
  • Patent number: 7838979
    Abstract: A stacked semiconductor package and a method for manufacturing the same. The stacked semiconductor package includes a semiconductor chip module having two or more semiconductor chips which are stacked in the shape of steps. Each of the semiconductor chips includes pads located on an upper surface thereof and an inclined side surface connected with the upper surface. Connection patterns are formed in the shape of lines on the inclined side surfaces and the upper surfaces of the semiconductor chips to electrically connect pads of the semiconductor chips.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: November 23, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Tac Keun Oh
  • Publication number: 20100109140
    Abstract: A flexible semiconductor package apparatus having a responsive bendable conductive wire member is presented. The apparatus includes a flexible substrate, semiconductor chips, and conductive wires. The semiconductor chips are disposed on the flexible substrate and spaced apart from each other on the flexible substrate. Each semiconductor chip has bonding pads. The conductive wires are electrically connected to the bonding pads of the semiconductor chip. Each conductive wire has at least one elastic portion. One preferred configuration is that part of the conductive wire is wound to form a coil spring shape so that the coil spring shape of the conductive wire aid in preventing the conductive wire from being separated from the corresponding bonding pad of the semiconductor chip when the flexible substrate on which the semiconductor chips are mounted are bent, expanded or twisted.
    Type: Application
    Filed: December 31, 2008
    Publication date: May 6, 2010
    Inventors: Tac Keun OH, Sung Min KIM
  • Publication number: 20090321954
    Abstract: A stacked semiconductor package and a method for manufacturing the same. The stacked semiconductor package includes a semiconductor chip module having two or more semiconductor chips which are stacked in the shape of steps. Each of the semiconductor chips includes pads located on an upper surface thereof and an inclined side surface connected with the upper surface. Connection patterns are formed in the shape of lines on the inclined side surfaces and the upper surfaces of the semiconductor chips to electrically connect pads of the semiconductor chips.
    Type: Application
    Filed: September 10, 2008
    Publication date: December 31, 2009
    Inventor: Tac Keun OH
  • Publication number: 20090184414
    Abstract: A wafer level chip scale package having an enhanced heat exchange efficiency with an EMF shield is presented. The wafer level chip scale package includes a semiconductor chip, an insulation layer, and a metal plate. The semiconductor chip has a plurality of bonding pads on an upper face thereof. The insulation layer is disposed over the upper face of the semiconductor chip and has openings that expose some portions of the bonding pads. The metal plate covers an upper face of the insulation layer and side faces of the semiconductor chip in which the metal plate is electrically insulated from the bonding pads.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 23, 2009
    Inventors: Chang Jun PARK, Kwon Whan HAN, Seong Cheol KIM, Sung Min KIM, Hyeong Seok CHOI, Ha Na LEE, Tac Keun OH, Sang Joon LIM