Patents by Inventor HeeJo Chi

HeeJo Chi 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: 20150004756
    Abstract: Methods of forming conductive and insulating layers for semiconductor devices and packages. Substrate is provided with integrated circuit device and interconnect structure mounted thereon, the interconnect structure adjacent the integrated circuit device. The integrated circuit device and portions of the interconnect structure can be covered with an encapsulation exposing a portion of the interconnect structure. Conductive material is formed over the exposed portion of the interconnect structure by a depositing process followed by a heating process to alter the chemical properties of the conductive material. Optionally, a dispersing process may be incorporated.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 1, 2015
    Inventors: HeeJo Chi, HanGil Shin, KyungMoon Kim
  • Publication number: 20150004750
    Abstract: Methods of forming conductive materials on contact pads for semiconductor devices and packages. Substrate is provided with contact pads formed thereon. Conductive material is formed over the contact pads by a depositing process followed by a heating process to alter the chemical properties of the conductive material. Optionally, a dispersing process may be incorporated. An interconnect structure can be mounted over the conductive material where the interconnect structure is attached to the conductive material without any active treatment to the conductive material after formation.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 1, 2015
    Inventors: HeeJo Chi, HanGil Shin, NamJu Cho, KyungMoon Kim
  • Publication number: 20140367848
    Abstract: A semiconductor device has a semiconductor die. The semiconductor die is disposed over a conductive substrate. An encapsulant is deposited over the semiconductor die. A first interconnect structure is formed over the encapsulant. An opening is formed through the substrate to isolate a portion of the substrate electrically connected to the first interconnect structure. A bump is formed over the first interconnect structure. Conductive vias are formed through the encapsulant and electrically connected to the portion of the substrate. A plurality of bumps is formed over the semiconductor die. A first conductive layer is formed over the encapsulant. A first insulating layer is formed over the first conductive layer. A second conductive layer is formed over the first insulating layer and first conductive layer. A second insulating layer is formed over the first insulating layer and second conductive layer. Protrusions extend above the substrate.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 18, 2014
    Inventors: HeeJo Chi, HanGil Shin, NamJu Cho
  • Publication number: 20140361423
    Abstract: A semiconductor device has a leadframe with a plurality of bodies extending from the base plate. A first semiconductor die is mounted to the base plate of the leadframe between the bodies. An encapsulant is deposited over the first semiconductor die and base plate and around the bodies of the leadframe. A portion of the encapsulant over the bodies of the leadframe is removed to form first openings in the encapsulant that expose the bodies. An interconnect structure is formed over the encapsulant and extending into the first openings to the bodies of the leadframe. The leadframe and bodies are removed to form second openings in the encapsulant corresponding to space previously occupied by the bodies to expose the interconnect structure. A second semiconductor die is mounted over the first semiconductor die with bumps extending into the second openings of the encapsulant to electrically connect to the interconnect structure.
    Type: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Applicant: STATS CHIPPAC, LTD.
    Inventors: HeeJo Chi, NamJu Cho, HanGil Shin
  • Patent number: 8901755
    Abstract: A semiconductor device has a substrate with a cavity. A conductive layer is formed within the cavity and over the substrate outside the cavity. A plurality of indentations can be formed in a surface of the substrate opposite the cavity for stress relief. A first semiconductor die is mounted within the cavity. A plurality of conductive vias can be formed through the first semiconductor die. An insulating layer is disposed between the first semiconductor die and substrate with the first conductive layer embedded within the first insulating layer. An encapsulant is deposited over the first semiconductor die and substrate. An interconnect structure is formed over the encapsulant. The interconnect structure is electrically connected to the first semiconductor die and first conductive layer. The substrate is removed to expose the first conductive layer. A second semiconductor die is mounted to the conductive layer over the first semiconductor die.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: December 2, 2014
    Assignee: STATS ChipPAC, Ltd.
    Inventors: HeeJo Chi, Namju Cho, HanGil Shin
  • Publication number: 20140295618
    Abstract: Methods of producing a semiconductor package using dual-sided thermal compression bonding includes providing a substrate having an upper surface and a lower surface. A first device having a first surface and a second surface can be provided along with a second device having a third surface and a fourth surface. The first surface of the first device can be coupled to the upper surface of the substrate while the third surface of the second device can be coupled to the lower surface of the substrate, the coupling occurring simultaneously to produce the semiconductor package.
    Type: Application
    Filed: March 29, 2013
    Publication date: October 2, 2014
    Applicant: STATS ChipPAC, Ltd.
    Inventors: KyungMoon Kim, YoungChul Kim, HunTeak Lee, KeonTaek Kang, HeeJo Chi
  • Publication number: 20140175639
    Abstract: A semiconductor device has a semiconductor die disposed over a substrate. The semiconductor die and substrate are placed in a chase mold. An encapsulant is deposited over and between the semiconductor die and substrate simultaneous with bonding the semiconductor die to the substrate in the chase mold. The semiconductor die is bonded to the substrate using thermocompression by application of force and elevated temperature. An electrical interconnect structure, such as a bump, pillar bump, or stud bump, is formed over the semiconductor die. A flux material is deposited over the interconnect structure. A solder paste or SOP is deposited over a conductive layer of the substrate. The flux material and SOP provide temporary bond between the semiconductor die and substrate. The interconnect structure is bonded to the SOP. Alternatively, the interconnect structure can be bonded directly to the conductive layer of the substrate, with or without the flux material.
    Type: Application
    Filed: September 26, 2013
    Publication date: June 26, 2014
    Applicant: STATS ChipPAC, Ltd.
    Inventors: KyungMoon Kim, KooHong Lee, JaeHak Yee, YoungChul Kim, Lan Hoang, Pandi C. Marimuthu, Steve Anderson, HeeJo Chi
  • Publication number: 20140175640
    Abstract: A semiconductor device has a plurality of semiconductor die disposed over a carrier. An electrical interconnect, such as a stud bump, is formed over the semiconductor die. The stud bumps are trimmed to a uniform height. A substrate includes a bump over the substrate. The electrical interconnect of the semiconductor die is bonded to the bumps of the substrate while the semiconductor die is disposed over the carrier. An underfill material is deposited between the semiconductor die and substrate. Alternatively, an encapsulant is deposited over the semiconductor die and substrate using a chase mold. The bonding of stud bumps of the semiconductor die to bumps of the substrate is performed using gang reflow or thermocompression while the semiconductor die are in reconstituted wafer form and attached to the carrier to provide a high throughput of the flipchip type interconnect to the substrate.
    Type: Application
    Filed: September 27, 2013
    Publication date: June 26, 2014
    Applicant: STATS ChipPAC, Ltd.
    Inventors: KyungMoon Kim, KooHong Lee, JaeHak Yee, YoungChul Kim, Lan Hoang, Pandi C. Marimuthu, Steve Anderson, HunTeak Lee, HeeJo Chi
  • Publication number: 20140175661
    Abstract: A semiconductor device includes a substrate with contact pads. A mask is disposed over the substrate. Aluminum-wettable conductive paste is printed over the contact pads of the substrate. A semiconductor die is disposed over the aluminum-wettable conductive paste. The aluminum-wettable conductive paste is reflowed to form an interconnect structure over the contact pads of the substrate. The contact pads include aluminum. Contact pads of the semiconductor die are disposed over the aluminum-wettable conductive paste. The aluminum-wettable conductive paste is reflowed to form an interconnect structure between the contact pads of the semiconductor die and the contact pads of the substrate. The interconnect structure is formed directly on the contact pads of the substrate and semiconductor die. The contact pads of the semiconductor die are etched prior to reflowing the aluminum-wettable conductive paste. An epoxy pre-dot to maintain a separation between the semiconductor die and substrate.
    Type: Application
    Filed: September 27, 2013
    Publication date: June 26, 2014
    Applicant: STATS ChipPAC, Ltd.
    Inventors: KyungMoon Kim, KooHong Lee, JaeHak Yee, YoungChul Kim, Lan Hoang, Pandi C. Marimuthu, Steve Anderson, See Chian Lim, HeeJo Chi
  • Patent number: 8749040
    Abstract: A method of manufacture of an integrated circuit packaging system includes: providing a base substrate; attaching a component over the base substrate; attaching a component interconnect to the base substrate and a perimeter of the component; mounting a stack device over the component; attaching a base exposed interconnect directly on the component and next to the component interconnect; and forming a base encapsulation over the base substrate, the component, and the component interconnect, the base exposed interconnect partially exposed from the base encapsulation.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: June 10, 2014
    Assignee: STATS ChipPAC Ltd.
    Inventors: HeeJo Chi, NamJu Cho, HanGil Shin
  • Patent number: 8723309
    Abstract: A method of manufacture of an integrated circuit packaging system includes: providing a bottom integrated circuit having bottom through silicon vias with a bottom via pitch; mounting outer interconnects over the bottom integrated circuit; and mounting a top integrated circuit between the outer interconnects, the top integrated circuit having top through silicon vias with a top via pitch less than the bottom via pitch.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: May 13, 2014
    Assignee: STATS ChipPAC Ltd.
    Inventors: HanGil Shin, YeongIm Park, HeeJo Chi
  • Patent number: 8716065
    Abstract: A method of manufacture of an integrated circuit packaging system includes: providing a base substrate; attaching a base integrated circuit on the base substrate; forming a base encapsulation, having a base encapsulation top side, on the base substrate and around the base integrated circuit; forming a base conductive via, having a base via head, through the base encapsulation and attached to the base substrate adjacent to the base integrated circuit, the base via head exposed from and coplanar with the base encapsulation top side; mounting an interposer structure over the base encapsulation with the interposer structure connected to the base via head; and forming an upper encapsulation on the base encapsulation top side and partially surrounding the interposer structure with a side of the interposer structure facing away from the base encapsulation exposed.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: May 6, 2014
    Assignee: Stats Chippac Ltd.
    Inventors: HeeJo Chi, NamJu Cho, HanGil Shin
  • Patent number: 8710668
    Abstract: A method of manufacture of an integrated circuit packaging system includes: providing a substrate; molding a first encapsulation above the substrate; forming a via through the first encapsulation; mounting an integrated circuit above the substrate and between sides of the first encapsulation; and forming a second encapsulation covering the integrated circuit and the first encapsulation.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: April 29, 2014
    Assignee: Stats ChipPac Ltd.
    Inventors: HyungMin Lee, HeeJo Chi, YeongIm Park
  • Patent number: 8710634
    Abstract: A method of manufacture of an integrated circuit packaging system includes: providing a substrate having a substrate-interconnect; mounting an integrated circuit above and to the substrate; mounting an internal interconnect to the substrate-interconnect; mounting a structure having an integral-interposer-structure over the substrate and over the integrated circuit with the integral-interposer-structure connected to the internal interconnect; and encapsulating the internal interconnect and the integrated circuit with an encapsulation.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: April 29, 2014
    Assignee: Stats Chippac Ltd.
    Inventors: HeeJo Chi, Jae Han Chung, Junwoo Myung, Yeonglm Park, HyungMin Lee
  • Patent number: 8624370
    Abstract: A method of manufacture of an integrated circuit packaging system includes: mounting a device over an integrated circuit having a through via; attaching an interposer, having an opening, and the integrated circuit with the device within the opening; and forming an encapsulation at least partially covering the integrated circuit and the interposer facing the integrated circuit.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: January 7, 2014
    Assignee: Stats Chippac Ltd.
    Inventors: HeeJo Chi, NamJu Cho, Taewoo Lee
  • Publication number: 20130334697
    Abstract: A method of manufacture of an integrated circuit packaging system includes: providing a bottom integrated circuit having bottom through silicon vias with a bottom via pitch; mounting outer interconnects over the bottom integrated circuit; and mounting a top integrated circuit between the outer interconnects, the top integrated circuit having top through silicon vias with a top via pitch less than the bottom via pitch.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 19, 2013
    Inventors: HanGil Shin, YeongIm Park, HeeJo Chi
  • Patent number: 8587129
    Abstract: A method of manufacture of an integrated circuit packaging system includes: providing a base having a through-conductor and having an insulator protecting the base and the through-conductor; mounting a chip over the base and connected to the base with a first interconnect; forming a second interconnect above the base and horizontally beside the chip; and encapsulating the chip, the first interconnect, and the second interconnect with an encapsulation.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: November 19, 2013
    Assignee: STATS ChipPAC Ltd.
    Inventors: HeeJo Chi, NamJu Cho, YeongIm Park
  • Publication number: 20130299982
    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: July 17, 2013
    Publication date: November 14, 2013
    Inventors: Reza A. Pagaila, Yaojian Lin, Jun Mo Koo, HeeJo Chi
  • Publication number: 20130299974
    Abstract: A semiconductor device is made by mounting a semiconductor wafer to a temporary carrier. A plurality of TSV is formed through the wafer. A cavity is formed partially through the wafer. A first semiconductor die is mounted to a second semiconductor die. The first and second die are mounted to the wafer such that the first die is disposed over the wafer and electrically connected to the TSV and the second die is disposed within the cavity. An encapsulant is deposited over the wafer and first and second die. A portion of the encapsulant is removed to expose a first surface of the first die. A portion of the wafer is removed to expose the TSV and a surface of the second die. The remaining portion of the wafer operates as a TSV interposer for the first and second die. An interconnect structure is formed over the TSV interposer.
    Type: Application
    Filed: July 16, 2013
    Publication date: November 14, 2013
    Inventors: HeeJo Chi, NamJu Cho, HanGil Shin
  • Patent number: 8564125
    Abstract: A method of manufacture of an integrated circuit packaging system includes: mounting a bottom integrated circuit on a bottom substrate having a peripheral thermal via connected to a peripheral thermal interconnect; mounting an inner heat shield, having a top planar portion, over the bottom integrated circuit with the inner heat shield connected to the peripheral thermal via; mounting a top integrated circuit over the inner heat shield; and forming a package encapsulation over the bottom integrated circuit, the inner heat shield, and the top integrated circuit with the top planar portion exposed only at each corners of a package topside of the package encapsulation.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: October 22, 2013
    Assignee: Stats Chippac Ltd.
    Inventors: NamJu Cho, HeeJo Chi, HanGil Shin