Patents by Inventor Chi-Won Hwang

Chi-Won Hwang 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: 8975207
    Abstract: Disclosed is an adsorptive ball for recovering precious metals and resources, a method for manufacturing the adsorptive bale, a flow through-continuous deionization (FT-CDI) module capable of recovering precious metals by using the adsorptive ball, and a flow through-continuous deionization (FT-CDI) apparatus having the flow through-continuous deionization (FT-CDI) installed thereat.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: March 10, 2015
    Assignees: The Industry & Academic Cooperation in Chungnam National University, Pusan National University Industry-University Cooperation Foundation
    Inventors: Teak Sung Hwang, Won Ho Jung, Noh-Seok Kwak, Sung-gyu Park, Jin Sun Koo, Hui-Man Park, Chi Won Hwang, Chang-Sik Ha
  • Publication number: 20130277210
    Abstract: The present invention relates to an electrolytic cell for an FT-CDI including: an injection port into which a bead and a concentrate are injected and a discharge port through which the bead and the concentrate are discharged to circulate the bead, thereby preventing the concentration of the bead from being degraded and disposes a mesh at a place in which the concentrate and the bead are received to disperse the concentrate and the bead well.
    Type: Application
    Filed: October 16, 2012
    Publication date: October 24, 2013
    Inventors: Teak Sung Hwang, Sung-Gyu Park, Hui-Man Park, Noh-Seok Kwak, Chi Won Hwang
  • Patent number: 8391016
    Abstract: A carbon nanotube solder is formed on a substrate of an integrated circuit package. The carbon nanotube solder exhibits high heat and electrical conductivities. The carbon nanotube solder is used as a solder microcap on a metal bump for communication between an integrated circuit device and external structures.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: March 5, 2013
    Assignee: Intel Corporation
    Inventor: Chi-won Hwang
  • Patent number: 8387240
    Abstract: In one embodiment, a method includes forming a plurality of vias partially through a body, the vias including sidewalls defined by the body. An electrically insulating layer is formed on the sidewalls and on an upper surface of the body. An electrically conductive layer is formed on the insulating layer in the vias and on the upper surface, the electrically conductive layer defining first metal pads on the upper surface and second metal pads in contact with the first metal pads, the second metal pads having a denser pitch than the first metal pads. A dielectric layer is formed between adjacent first metal pads and between adjacent second metal pads. The body is thinned through a lower surface and the electrically insulating layer in the vias is exposed. After the thinning, a portion of the electrically insulating layer in the, vias is removed. The body is coupled to a substrate.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: March 5, 2013
    Assignee: Intel Corporation
    Inventors: Sriram Muthukumar, Raul Mancera, Yoshihiro Tomita, Chi-won Hwang
  • Patent number: 7952203
    Abstract: Methods of forming microelectronic device structures are described. Those methods may include forming a passivation layer on a substrate, wherein the substrate comprises an array of conductive structures, forming a first via in the passivation layer, forming a second via in the passivation layer that exposes at least one of the conductive structures in the array, and wherein the second via is formed within the first via space to form a step via, and forming a conductive material in the step via, wherein a round dimple is formed in the conductive material.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: May 31, 2011
    Assignee: Intel Corporation
    Inventor: Chi-won Hwang
  • Publication number: 20110067236
    Abstract: The formation of electronic assemblies, including assemblies having an interposer, are described. In one embodiment, a method includes forming a plurality of vias extending partially through a body, the vias including sidewalls defined by the body. An insulating layer is formed on the sidewalls and on an upper surface of the body. An electrically conductive layer is formed on the insulating layer in the vias and on the upper surface of the body, the electrically conductive layer defining a first metal pad layer on the upper surface and a second metal pad layer in contact with the first metal pad layer, the second metal pad layer having a denser pitch between adjacent pads than the first metal pad layer. The method also includes forming a dielectric layer between the adjacent metal pads in the first and second pad layers. The method also includes coupling a plurality of elements to the second metal pad layer.
    Type: Application
    Filed: November 29, 2010
    Publication date: March 24, 2011
    Inventors: Sriram MUTHUKUMAR, Raul MANCERA, Yoshihiro TOMITA, Chi-won HWANG
  • Patent number: 7882628
    Abstract: The formation of electronic assemblies is described. One embodiment includes providing a body and forming a first metal pad layer on a first surface thereof. A second metal pad layer is formed in contact with the first metal pad layer, the second metal pad layer having a denser pitch than the first metal pad layer. A dielectric layer is formed between the metal pads in the first and second metal pad layers. Vias extending through the body from a second surface thereof are formed, the vias exposing the first metal pad layer. An insulating layer is formed on via sidewalls and on the second surface, and an electrically conductive layer formed on the insulating layer and on the exposed surface of the first metal layer. Elements are coupled to the second metal pad layer and the electrically conductive layer coupled to a substrate. Other embodiments are described and claimed.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: February 8, 2011
    Assignee: Intel Corporation
    Inventors: Sriram Muthukumar, Raul Mancera, Yoshihiro Tomita, Chi-won Hwang
  • Patent number: 7841080
    Abstract: One embodiment relates to forming a plurality of vias extending partially through a body, the vias including sidewalls defined by the body. An insulating layer is formed on the sidewalls and on an upper surface of the body. An electrically conductive layer is formed on the insulating layer, the electrically conductive layer defining first metal pads on the upper surface and second metal pads in contact with the first metal pads, the second metal pads having a denser pitch than the first metal pads. A dielectric layer is formed between adjacent first metal pads and between adjacent second metal pads. A plurality of electronic elements are coupled to the second metal pads. After the coupling the elements, the body is thinned through a lower surface. A portion of the insulating layer in the vias is removed and the electrically conductive layer is coupled to a substrate.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: November 30, 2010
    Assignee: Intel Corporation
    Inventors: Sriram Muthukumar, Raul Mancera, Yoshihiro Tomita, Chi-won Hwang
  • Publication number: 20100084764
    Abstract: A carbon nanotube solder is formed on a substrate of an integrated circuit package. The carbon nanotube solder exhibits high heat and electrical conductivities. The carbon nanotube solder is used as a solder microcap on a metal bump for communication between an integrated circuit device and external structures.
    Type: Application
    Filed: August 25, 2009
    Publication date: April 8, 2010
    Inventor: Chi-Won Hwang
  • Publication number: 20100052159
    Abstract: Methods of forming microelectronic device structures are described. Those methods may include forming a passivation layer on a substrate, wherein the substrate comprises an array of conductive structures, forming a first via in the passivation layer, forming a second via in the passivation layer that exposes at least one of the conductive structures in the array, and wherein the second via is formed within the first via space to form a step via, and forming a conductive material in the step via, wherein a round dimple is formed in the conductive material.
    Type: Application
    Filed: August 29, 2008
    Publication date: March 4, 2010
    Inventor: Chi-won Hwang
  • Patent number: 7600667
    Abstract: A method of making a carbon nanotube reinforced solder cap. Carbon nanotube-solder (CNT-S) particles are transferred from a transfer substrate, having an adhesive layer, to a solder bump by using thermo compression bonding. The CNT-S particles are then reflowed to form a cap on the solder bump. The solder bump with the reflowed cap can then be joined to a bonding pad or another solder bump with a cap by placing the solder bump on the pad or other bump and reflowing at a temperature sufficient to reflow the cap(s).
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: October 13, 2009
    Assignee: Intel Corporation
    Inventor: Chi-won Hwang
  • Patent number: 7535099
    Abstract: A microelectronic cooling assembly and method for fabricating the same are described. In one example, a microelectronic cooling assembly includes a microelectronic device, a heat spreader, and a thermal interface material (TIM) that thermally joins the microelectronic device and heat spreader, the TIM comprising a sintered metallic nanopaste.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: May 19, 2009
    Assignee: Intel Corporation
    Inventors: Daewoong Suh, Chi-won Hwang
  • Patent number: 7514116
    Abstract: Horizontal carbon nanotubes may be used for on-die routing and other applications. In one example, a catalyst is applied to a plurality of different points on a substrate. Carbon nanotubes are then grown vertically on the plurality of different points to form a plurality of vertical carbon nanotube structures on the substrate. The vertical carbon nanotuhe structures are then rolled to form horizontal carbon nanotube structures.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: April 7, 2009
    Assignee: Intel Corporation
    Inventors: Devendra Natekar, Yoshihiro Tomita, Chi-Won Hwang
  • Publication number: 20090072013
    Abstract: Nano-scale particle paste may be used for on-die routing and other applications using deposition and inkjet printing. A metal paste is applied to a surface of a die to electrically couple two spaced apart connection points of the die. Alternatively, or in addition, the paste may contain carbon nanotubes. The paste may be used on other surfaces as well.
    Type: Application
    Filed: November 25, 2008
    Publication date: March 19, 2009
    Inventors: DEVENDRA NATEKAR, Yoshihiro Tomita, Chi-Won Hwang
  • Publication number: 20090057378
    Abstract: An in-situ chip attachment process uses a self-organizing solder paste composed of a synthetic resin organic flux and solder particles having a mean diameter that falls between around 0.1 ?m and around 10 ?m. The process is carried out by blanket depositing the solder paste on a first substrate having a first metal structure, pressing a second substrate having a second metal structure into the solder paste such that the second metal structure is aligned with the first metal structure and a gap exists between the first and second metal structures, heating the solder paste to a reflow temperature for a time duration sufficient to cause the solder particles to coalesce and form an electrical connection between the first and second metal structures. The reflow temperature ranges from around 100° C. to around 500° C. The time duration ranges between around 30 seconds and around 900 seconds.
    Type: Application
    Filed: August 27, 2007
    Publication date: March 5, 2009
    Inventors: Chi-Won Hwang, Daewoong Suh
  • Publication number: 20080295325
    Abstract: The formation of electronic assemblies, including assemblies having an interposer, are described. In one embodiment, a method includes forming a plurality of vias extending partially through a body, the vias including sidewalls defined by the body. An insulating layer is formed on the sidewalls and on an upper surface of the body. An electrically conductive layer is formed on the insulating layer in the vias and on the upper surface of the body, the electrically conductive layer defining a first metal pad layer on the upper surface and a second metal pad layer in contact with the first metal pad layer, the second metal pad layer having a denser pitch between adjacent pads than the first metal pad layer. The method also includes forming a dielectric layer between the adjacent metal pads in the first and second pad layers. The method also includes coupling a plurality of elements to the second metal pad layer.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 4, 2008
    Inventors: Sriram Muthukumar, Raul Mancera, Yoshihiro Tomita, Chi-won Hwang
  • Publication number: 20080295329
    Abstract: The formation of electronic assemblies, including assemblies having an interposer, are described. In one embodiment, a method includes providing a body and forming a first metal pad layer on a first surface thereof. A second metal pad layer is formed in contact with the first patterned metal pad layer, the second metal pad layer having a denser pitch between adjacent pads than the first metal pad layer. A dielectric layer is formed between the adjacent metal pads in the first and second metal pad layers. After the forming the first and second metal pad layers and the dielectric layer, the method includes forming a plurality of vias extending through the body from a second surface thereof, the vias extending through a thickness of the body and exposing the first metal pad layer. The method also includes forming an insulating layer on sidewalls of the vias and on the second surface, and forming an electrically conductive layer on the insulating layer and on the exposed surface of the first metal layer.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 4, 2008
    Inventors: Sriram Muthukumar, Raul Mancera, Yoshihiro Tomita, Chi-won Hwang
  • Publication number: 20080078813
    Abstract: A carbon nanotube solder is formed on a substrate of an integrated circuit package. The carbon nanotube solder exhibits high heat and electrical conductivities. The carbon nanotube solder is used as a solder microcap on a metal bump for communication between an integrated circuit device and external structures.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 3, 2008
    Inventor: Chi-won Hwang
  • Publication number: 20080073776
    Abstract: A microelectronic cooling assembly and method for fabricating the same are described. In one example, a microelectronic cooling assembly includes a microelectronic device, a heat spreader, and a thermal interface material (TIM) that thermally joins the microelectronic device and heat spreader, the TIM comprising a sintered metallic nanopaste.
    Type: Application
    Filed: September 26, 2006
    Publication date: March 27, 2008
    Inventors: Daewoong Suh, Chi-won Hwang
  • Publication number: 20070227627
    Abstract: A solder composition is provided. A solder composition has a solder matrix material and dispersoid particles in the solder matrix material. The solder matrix material has a relatively low melting temperature and the dispersoid particles have a relatively high melting temperature.
    Type: Application
    Filed: March 30, 2006
    Publication date: October 4, 2007
    Inventors: Daewoong Suh, Chi-won Hwang