Patents by Inventor Jun Mo Koo

Jun Mo Koo 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: 20220075108
    Abstract: A polarizing plate and an optical display including the same are provided. A polarizing plate includes a polarizer; and a first retardation layer and a second retardation layer sequentially stacked on a lower surface of the polarizer, and the first retardation layer has a degree of biaxiality (NZ) of less than 0 at a wavelength of 550 nm and is a non-liquid crystal layer, and the second retardation layer has a degree of biaxiality (NZ) of greater than 1 at a wavelength of 550 nm.
    Type: Application
    Filed: September 1, 2021
    Publication date: March 10, 2022
    Inventors: Jun Mo KOO, Bong Choon KIM, Sang Hum LEE, Jung Hun YOU, Hee Seop KIM, Kwang Ho SHIN
  • Publication number: 20220026614
    Abstract: A polarizing plate and an optical display apparatus including the same are provided. A polarizing plate includes a polarizer; and a first retardation layer and a second retardation layer sequentially stacked on a lower surface of the polarizer, and the first retardation layer has an in-plane retardation of about 180 nm to about 220 nm at a wavelength of about 550 nm; and the second retardation layer has an in-plane retardation of about 80 nm to about 100 nm at a wavelength of about 550 nm.
    Type: Application
    Filed: July 21, 2021
    Publication date: January 27, 2022
    Inventors: Bong Choon KIM, Jun Mo KOO, Dong Yoon SHIN, Jung Hun YOU, Sang Hum LEE
  • Publication number: 20210405273
    Abstract: The present invention provides a polarizing plate and a liquid crystal display device comprising same, the polarizing plate comprising: a polarizer; and a first retardation layer and a second retardation layer formed on one surface of the polarizer, wherein the first retardation layer has a thickness direction retardation (Rth) of about ?75 nm to about ?130 nm at a wavelength of about 550 nm, the second retardation layer satisfies Relations 1 and 2, a laminated body of the first retardation layer and the second retardation layer has a thickness direction retardation (Rth) of about ?70 nm to about 0 nm at a wavelength of about 550 nm, and the first retardation layer includes a coating layer formed of a composition containing a cellulose ester-based compound.
    Type: Application
    Filed: December 23, 2019
    Publication date: December 30, 2021
    Inventors: Jun Mo KOO, Jung Hun YOU, Sang Hum LEE, Dong Yoon SHIN
  • Publication number: 20210132278
    Abstract: Provided are an optical film, a polarizing plate including same, and a display device including same, the optical film comprising a first layer and second and third layers sequentially formed on the first layer, wherein the first layer and the third layer are each formed directly on the second layer, the first layer is a reverse wavelength dispersive negative A layer, the third layer is a positive C layer, and the ratio of the thickness of the second layer to the thickness of the third layer (the thickness of the second layer/the thickness of the third layer) is about 0.2 to about 2.
    Type: Application
    Filed: April 17, 2019
    Publication date: May 6, 2021
    Inventors: Jun Mo KOO, Jung Hun YOU, Sang Hum LEE, Dong Yoon SHIN
  • Patent number: 10998248
    Abstract: A semiconductor wafer contains a plurality of semiconductor die each having a plurality of contact pads. A sacrificial adhesive is deposited over the contact pads. Alternatively, the sacrificial adhesive is deposited over the carrier. An underfill material can be formed between the contact pads. The semiconductor wafer is singulated to separate the semiconductor die. The semiconductor die is mounted to a temporary carrier such that the sacrificial adhesive is disposed between the contact pads and temporary carrier. An encapsulant is deposited over the semiconductor die and carrier. The carrier and sacrificial adhesive is removed to leave a via over the contact pads. An interconnect structure is formed over the encapsulant. The interconnect structure includes a conductive layer which extends into the via for electrical connection to the contact pads. The semiconductor die is offset from the interconnect structure by a height of the sacrificial adhesive.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: May 4, 2021
    Inventors: Reza A. Pagaila, Yaojian Lin, Jun Mo Koo
  • Publication number: 20210033768
    Abstract: A polarizing plate and an optical display apparatus are provided. A polarizing plate includes: a polarizer; and a first retardation layer and a second retardation layer sequentially stacked on a lower surface of the polarizer, and the first retardation layer has a short wavelength dispersion of about 1 to about 1.03, a long wavelength dispersion of about 0.98 to about 1, and an in-plane retardation of about 180 nm to about 220 nm at a wavelength of 550 nm, the second retardation layer has a short wavelength dispersion of about 1 to about 1.1, a long wavelength dispersion of about 0.96 to about 1, and an in-plane retardation Re of about 70 nm to about 120 nm at a wavelength of 550 nm, and a ratio of out-of-plane retardation of the second retardation layer at a wavelength of 550 nm to thickness thereof is about ?33 nm/?m to about ?15 nm/?m.
    Type: Application
    Filed: July 28, 2020
    Publication date: February 4, 2021
    Inventors: Jun Mo KOO, Bong Choon KIM, Dong Yoon SHIN, Jung Hun YOU, Sang Hum LEE
  • Patent number: 10242948
    Abstract: A semiconductor device has a substrate including a base and a plurality of conductive posts extending from the base. The substrate can be a wafer-shape, panel, or singulated form. The conductive posts can have a circular, rectangular, tapered, or narrowing intermediate shape. A semiconductor die is disposed through an opening in the base between the conductive posts. The semiconductor die extends above the conductive posts or is disposed below the conductive posts. An encapsulant is deposited over the semiconductor die and around the conductive posts. The base and a portion of the encapsulant is removed to electrically isolate the conductive posts. An interconnect structure is formed over the semiconductor die, encapsulant, and conductive posts. An insulating layer is formed over the semiconductor die, encapsulant, and conductive posts. A semiconductor package is disposed over the semiconductor die and electrically connected to the conductive posts.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: March 26, 2019
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Il Kwon Shim, Jun Mo Koo, Pandi C. Marimuthu, Yaojian Lin, See Chian Lim
  • Publication number: 20180108542
    Abstract: A semiconductor device has an interposer mounted over a carrier. The interposer includes TSV formed either prior to or after mounting to the carrier. An opening is formed in the interposer. The interposer can have two-level stepped portions with a first vertical conduction path through a first stepped portion and second vertical conduction path through a second stepped portion. A first and second semiconductor die are mounted over the interposer. The second die is disposed within the opening of the interposer. A discrete semiconductor component can be mounted over the interposer. A conductive via can be formed through the second die or encapsulant. An encapsulant is deposited over the first and second die and interposer. A portion of the interposer can be removed to that the encapsulant forms around a side of the semiconductor device. An interconnect structure is formed over the interposer and second die.
    Type: Application
    Filed: December 18, 2017
    Publication date: April 19, 2018
    Applicant: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Yaojian Lin, Jun Mo Koo, HeeJo Chi
  • Patent number: 9875911
    Abstract: A semiconductor device has an interposer mounted over a carrier. The interposer includes TSV formed either prior to or after mounting to the carrier. An opening is formed in the interposer. The interposer can have two-level stepped portions with a first vertical conduction path through a first stepped portion and second vertical conduction path through a second stepped portion. A first and second semiconductor die are mounted over the interposer. The second die is disposed within the opening of the interposer. A discrete semiconductor component can be mounted over the interposer. A conductive via can be formed through the second die or encapsulant. An encapsulant is deposited over the first and second die and interposer. A portion of the interposer can be removed to that the encapsulant forms around a side of the semiconductor device. An interconnect structure is formed over the interposer and second die.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: January 23, 2018
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Yaojian Lin, Jun Mo Koo, HeeJo Chi
  • Patent number: 9679824
    Abstract: A semiconductor die has a conductive layer including a plurality of trace lines formed over a carrier. The conductive layer includes a plurality of contact pads electrically continuous with the trace lines. A semiconductor die has a plurality of contact pads and bumps formed over the contact pads. A plurality of conductive pillars can be formed over the contact pads of the semiconductor die. The bumps are formed over the conductive pillars. The semiconductor die is mounted to the conductive layer with the bumps directly bonded to an end portion of the trace lines to provide a fine pitch interconnect. An encapsulant is deposited over the semiconductor die and conductive layer. The conductive layer contains wettable material to reduce die shifting during encapsulation. The carrier is removed. An interconnect structure is formed over the encapsulant and semiconductor die. An insulating layer can be formed over the conductive layer.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: June 13, 2017
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Rajendra D. Pendse, Jun Mo Koo
  • Patent number: 9620455
    Abstract: A semiconductor wafer contains a plurality of semiconductor die with bumps formed over contact pads on an active surface of the semiconductor die. An ACF is deposited over the bumps and active surface of the wafer. An insulating layer can be formed between the ACF and semiconductor die. The semiconductor wafer is singulated to separate the die. The semiconductor die is mounted to a temporary carrier with the ACF oriented to the carrier. The semiconductor die is forced against the carrier to compress the ACF under the bumps and form a low resistance electrical interconnect to the bumps. An encapsulant is deposited over the semiconductor die and carrier. The carrier is removed. An interconnect structure is formed over the semiconductor die and encapsulant. The interconnect structure is electrically connected through the compressed ACF to the bumps. The ACF reduces shifting of the semiconductor die during encapsulation.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: April 11, 2017
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Yaojian Lin, Jun Mo Koo
  • Publication number: 20170098610
    Abstract: A semiconductor device has a substrate including a base and a plurality of conductive posts extending from the base. The substrate can be a wafer-shape, panel, or singulated form. The conductive posts can have a circular, rectangular, tapered, or narrowing intermediate shape. A semiconductor die is disposed through an opening in the base between the conductive posts. The semiconductor die extends above the conductive posts or is disposed below the conductive posts. An encapsulant is deposited over the semiconductor die and around the conductive posts. The base and a portion of the encapsulant is removed to electrically isolate the conductive posts. An interconnect structure is formed over the semiconductor die, encapsulant, and conductive posts. An insulating layer is formed over the semiconductor die, encapsulant, and conductive posts. A semiconductor package is disposed over the semiconductor die and electrically connected to the conductive posts.
    Type: Application
    Filed: December 15, 2016
    Publication date: April 6, 2017
    Applicant: STATS ChipPAC Pte. Ltd.
    Inventors: Il Kwon Shim, Jun Mo Koo, Pandi C. Marimuthu, Yaojian Lin, See Chian Lim
  • Patent number: 9559039
    Abstract: A semiconductor device has a substrate including a base and a plurality of conductive posts extending from the base. The substrate can be a wafer-shape, panel, or singulated form. The conductive posts can have a circular, rectangular, tapered, or narrowing intermediate shape. A semiconductor die is disposed through an opening in the base between the conductive posts. The semiconductor die extends above the conductive posts or is disposed below the conductive posts. An encapsulant is deposited over the semiconductor die and around the conductive posts. The base and a portion of the encapsulant is removed to electrically isolate the conductive posts. An interconnect structure is formed over the semiconductor die, encapsulant, and conductive posts. An insulating layer is formed over the semiconductor die, encapsulant, and conductive posts. A semiconductor package is disposed over the semiconductor die and electrically connected to the conductive posts.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: January 31, 2017
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Il Kwon Shim, Jun Mo Koo, Pandi C. Marimuthu, Yaojian Lin, See Chian Lim
  • Patent number: 9437538
    Abstract: A semiconductor device has a first semiconductor die with a sloped side surface. The first semiconductor die is mounted to a temporary carrier. An RDL extends from a back surface of the first semiconductor die along the sloped side surface of the first semiconductor die to the carrier. An encapsulant is deposited over the carrier and a portion of the RDL along the sloped side surface. The back surface of the first semiconductor die and a portion of the RDL is devoid of the encapsulant. The temporary carrier is removed. An interconnect structure is formed over the encapsulant and exposed active surface of the first semiconductor die. The RDL is electrically connected to the interconnect structure. A second semiconductor die is mounted over the back surface of the first semiconductor die. The second semiconductor die has bumps electrically connected to the RDL.
    Type: Grant
    Filed: June 1, 2014
    Date of Patent: September 6, 2016
    Assignee: STATS ChipPAC Pte. Ltd.
    Inventors: Reza A. Pagaila, Yaojian Lin, Jun Mo Koo
  • Publication number: 20160197022
    Abstract: A semiconductor wafer contains a plurality of semiconductor die each having a plurality of contact pads. A sacrificial adhesive is deposited over the contact pads. Alternatively, the sacrificial adhesive is deposited over the carrier. An underfill material can be formed between the contact pads. The semiconductor wafer is singulated to separate the semiconductor die. The semiconductor die is mounted to a temporary carrier such that the sacrificial adhesive is disposed between the contact pads and temporary carrier. An encapsulant is deposited over the semiconductor die and carrier. The carrier and sacrificial adhesive is removed to leave a via over the contact pads. An interconnect structure is formed over the encapsulant. The interconnect structure includes a conductive layer which extends into the via for electrical connection to the contact pads. The semiconductor die is offset from the interconnect structure by a height of the sacrificial adhesive.
    Type: Application
    Filed: March 11, 2016
    Publication date: July 7, 2016
    Applicant: STATS ChipPAC, Ltd.
    Inventors: Reza A. Pagaila, Yaojian Lin, Jun Mo Koo
  • Patent number: 9337116
    Abstract: A semiconductor substrate has a plurality of different size recesses formed in the substrate to provide a stepped interposer. A conductive via can be formed through the stepped interposer. An insulating layer follows a contour of the stepped interposer. A conductive layer is formed over the insulating layer following the contour of the stepped interposer. A first semiconductor die is partially disposed in a first recess and electrically connected to the conductive layer. A second semiconductor die is partially disposed in a second recess and electrically connected to the conductive layer. The first semiconductor die is electrically connected to the second semiconductor die through the conductive layer. The first and second semiconductor die can be flipchip type semiconductor die. An encapsulant is deposited over the first and second semiconductor die. A portion of the stepped interposer can be removed to reduce thickness.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: May 10, 2016
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Reza A. Pagaila, Yaojian Lin, Jun Mo Koo
  • Patent number: 9318441
    Abstract: A semiconductor wafer contains a plurality of semiconductor die each having a plurality of contact pads. A sacrificial adhesive is deposited over the contact pads. Alternatively, the sacrificial adhesive is deposited over the carrier. An underfill material can be formed between the contact pads. The semiconductor wafer is singulated to separate the semiconductor die. The semiconductor die is mounted to a temporary carrier such that the sacrificial adhesive is disposed between the contact pads and temporary carrier. An encapsulant is deposited over the semiconductor die and carrier. The carrier and sacrificial adhesive is removed to leave a via over the contact pads. An interconnect structure is formed over the encapsulant. The interconnect structure includes a conductive layer which extends into the via for electrical connection to the contact pads. The semiconductor die is offset from the interconnect structure by a height of the sacrificial adhesive.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: April 19, 2016
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Reza A. Pagaila, Yaojian Lin, Jun Mo Koo
  • Patent number: 9305854
    Abstract: A semiconductor device has a semiconductor die and first insulating layer formed over the semiconductor die. A patterned trench is formed in the first insulating layer. A conductive ink is deposited in the patterned trench by disposing a stencil over the first insulating layer with an opening aligned with the patterned trench and depositing the conductive ink through the opening in the stencil into the patterned trench. Alternatively, the conductive ink is deposited by dispensing the conductive ink through a nozzle into the patterned trench. The conductive ink is cured by ultraviolet light at room temperature. A second insulating layer is formed over the first insulating layer and conductive ink. An interconnect structure is formed over the conductive ink. An encapsulant can be deposited around the semiconductor die. The patterned trench is formed in the encapsulant and the conductive ink is deposited in the patterned trench in the encapsulant.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: April 5, 2016
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Il Kwon Shim, Jun Mo Koo
  • Patent number: 9263301
    Abstract: A semiconductor die has first and second discrete semiconductor components mounted over a plurality of wettable contact pads formed on a carrier. Conductive pillars are formed over the wettable contact pads. A semiconductor die is mounted to the conductive pillars over the first discrete components. The conductive pillars provide vertical stand-off of the semiconductor die as headroom for the first discrete components. The second discrete components are disposed outside a footprint of the semiconductor die. Conductive TSV can be formed through the semiconductor die. An encapsulant is deposited over the semiconductor die and first and second discrete components. The wettable contact pads reduce die and discrete component shifting during encapsulation. A portion of a back surface of the semiconductor die is removed to reduce package thickness. An interconnect structure is formed over the encapsulant and semiconductor die. Third discrete semiconductor components can be mounted over the semiconductor die.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: February 16, 2016
    Assignee: STARS ChipPAC, Ltd.
    Inventors: Reza A. Pagaila, Yaojian Lin, Jun Mo Koo
  • Patent number: 9224647
    Abstract: A semiconductor device has a substrate with first and second opposing surfaces. A plurality of conductive vias is formed partially through the first surface of the substrate. A first conductive layer is formed over the first surface of the substrate electrically connected to the conductive vias. A first semiconductor die is mounted over the first surface of the substrate. The first semiconductor die and substrate are mounted to a carrier. An encapsulant is deposited over the first semiconductor die, substrate, and carrier. A portion of the second surface of the substrate is removed to expose the conductive vias. An interconnect structure is formed over a surface of the substrate opposite the first semiconductor die. A second semiconductor die can be stacked over the first semiconductor die. A second semiconductor die can be mounted over the first surface of the substrate adjacent to the first semiconductor die.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: December 29, 2015
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Jun Mo Koo, Pandi Chelvam Marimuthu, Jae Hun Ku, Seung Wook Yoon