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).

  • Patent number: 9299650
    Abstract: An integrated circuit packaging system and method of manufacture thereof including: a base substrate; an integrated circuit die on the base substrate; vertical interconnects attached to the base substrate around the integrated circuit die; and a single metal layer interposer mounted on the vertical interconnects, the single metal layer interposer including: a routing pattern having interposer contacts and traces, and a dielectric layer on the interposer contacts and traces, a top surface of the interposer contacts coplanar with a top surface of the dielectric layer.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: March 29, 2016
    Assignee: STATS ChipPAC Ltd.
    Inventors: HeeJo Chi, HanGil Shin, NamJu Cho, Kyung Moon Kim
  • Patent number: 9287204
    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: Grant
    Filed: September 27, 2013
    Date of Patent: March 15, 2016
    Assignee: STATS ChipPAC, Ltd.
    Inventors: KyungMoon Kim, KooHong Lee, JaeHak Yee, YoungChul Kim, Lan Hoang, Pandi C. Marimuthu, Steve Anderson, HunTeak Lee, HeeJo Chi
  • Patent number: 9269691
    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: Grant
    Filed: June 14, 2013
    Date of Patent: February 23, 2016
    Assignee: STATS ChipPAC, Ltd.
    Inventors: HeeJo Chi, HanGil Shin, NamJu Cho
  • Patent number: 9269595
    Abstract: A semiconductor wafer has a plurality of first semiconductor die. A second semiconductor die is mounted to the first semiconductor die. The active surface of the first semiconductor die is oriented toward an active surface of the second semiconductor die. An encapsulant is deposited over the first and second semiconductor die. A portion of a back surface of the second semiconductor die opposite the active surface is removed. Conductive pillars are formed around the second semiconductor die. TSVs can be formed through the first semiconductor die. An interconnect structure is formed over the back surface of the second semiconductor die, encapsulant, and conductive pillars. The interconnect structure is electrically connected to the conductive pillars. A portion of a back surface of the first semiconductor die opposite the active surface is removed. A heat sink or shielding layer can be formed over the back surface of the first semiconductor die.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: February 23, 2016
    Assignee: STATS ChipPAC, Ltd.
    Inventors: HeeJo Chi, NamJu Cho, HanGil Shin
  • Patent number: 9263332
    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: Grant
    Filed: July 16, 2013
    Date of Patent: February 16, 2016
    Assignee: STATS ChipPAC, Ltd.
    Inventors: HeeJo Chi, NamJu Cho, HanGil Shin
  • Patent number: 9252130
    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: Grant
    Filed: March 29, 2013
    Date of Patent: February 2, 2016
    Assignee: STATS ChipPAC, Ltd.
    Inventors: KyungMoon Kim, YoungChul Kim, HunTeak Lee, KeonTaek Kang, HeeJo Chi
  • Patent number: 9245770
    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: Grant
    Filed: September 26, 2013
    Date of Patent: January 26, 2016
    Assignee: STATS ChipPAC, Ltd.
    Inventors: KyungMoon Kim, KooHong Lee, JaeHak Yee, YoungChul Kim, Lan Hoang, Pandi C. Marimuthu, Steve Anderson, HeeJo Chi
  • Patent number: 9240331
    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: Grant
    Filed: September 27, 2013
    Date of Patent: January 19, 2016
    Assignee: 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: 9202793
    Abstract: An integrated circuit packaging system and method of manufacture thereof including: providing a substrate; forming contact pads on top of the substrate; forming a protection layer on top of the contact pads and the substrate; exposing the contact pads from the protection layer; printing under bump metallization (UBM) layers over the exposed contact pads extended over the protection layer with conductive inks; and forming bumps on top of the under bump metallization layers. It also including: printing an adhesion layer using conductive ink, wherein the adhesion layer comprises interconnected adhesion layer pads; forming additional under bump metallization (UBM) layers and bumps on top of the adhesion layer pads utilizing an electro-deposition process; and removing connections among the interconnected adhesion layer pads.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: December 1, 2015
    Assignee: STATS ChipPAC Ltd.
    Inventors: Il Kwon Shim, Kyung Moon Kim, HeeJo Chi, JunMo Koo, Bartholomew Liao, Zigmund Ramirez Camacho
  • Patent number: 9153476
    Abstract: A prefabricated multi-die leadframe having a plurality of contact pads is mounted over a temporary carrier. A first semiconductor die is mounted over the carrier between the contact pads of the leadframe. A second semiconductor die is mounted over the contact pads of the leadframe and over the first die. An encapsulant is deposited over the leadframe and first and second die. The carrier is removed. A first interconnect structure is formed over the leadframe and the first die and a first surface of the encapsulant. A channel is cut through the encapsulant and leadframe to separate the contact pads. A plurality of conductive vias can be formed through the encapsulant. A second interconnect structure is formed over a second surface of the encapsulant opposite the first surface of the encapsulant. The second interconnect structure is electrically connected to the conductive vias.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: October 6, 2015
    Assignee: STATS ChipPAC, Ltd.
    Inventors: HeeJo Chi, YeongIm Park, HyungMin Lee
  • Publication number: 20150279778
    Abstract: A semiconductor device has a semiconductor die and encapsulant deposited over the semiconductor die. An insulating layer is formed over the semiconductor die and encapsulant. A first channel including a first conductive surface is formed in the insulating layer by laser radiation. A laser-activated catalyst is infused in the insulating layer to form the first conductive surface in the first channel upon laser radiation. A vertical interconnect is formed through the encapsulant. A first conductive layer is formed in the first channel over the first conductive surface. A second channel including a second conductive surface is formed in the encapsulant by laser radiation. The catalyst is infused in the encapsulant to form the second conductive surface in the second channel upon laser radiation. A second conductive layer is formed in the second channel over the second conductive surface. An interconnect structure is formed over the first conductive layer.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 1, 2015
    Applicant: STATS ChipPAC, Ltd.
    Inventors: Zigmund R. Camacho, Bartholomew Liao, Sheila Marie L. Alvarez, HeeJo Chi, Kelvin Dao
  • Publication number: 20150270237
    Abstract: A semiconductor device has a plurality of semiconductor die. A substrate is provided with bumps disposed over the substrate. A first prefabricated insulating film is disposed between the semiconductor die and substrate. An interconnect structure is formed over the semiconductor die and first prefabricated insulating film. The bumps include a copper core encapsulated within copper plating. The first prefabricated insulating film includes glass cloth, glass fiber, or glass fillers. The substrate includes a conductive layer formed in the substrate and coupled to the bumps. The semiconductor die is disposed between the bumps of the substrate. The bumps and the semiconductor die are embedded within the first prefabricated insulating film. A portion of the first prefabricated insulating film is removed to expose the bumps. The bumps electrically connect the substrate to the interconnect structure.
    Type: Application
    Filed: March 20, 2014
    Publication date: September 24, 2015
    Applicant: STATS ChipPAC, Ltd.
    Inventors: HeeJo Chi, HanGil Shin, NamJu Cho
  • Patent number: 9064859
    Abstract: A semiconductor device has a prefabricated multi-die leadframe with a base and integrated raised die paddle and a plurality of bodies extending from the base. A thermal interface layer is formed over a back surface of a semiconductor die or top surface of the raised die paddle. The semiconductor die is mounted over the raised die paddle between the bodies of the leadframe with the TIM disposed between the die and raised die paddle. An encapsulant is deposited over the leadframe and semiconductor die. Vias can be formed in the encapsulant. An interconnect structure is formed over the leadframe, semiconductor die, and encapsulant, including into the vias. The base is removed to separate the bodies from the raised die paddle. The raised die paddle provides heat dissipation for the semiconductor die. The bodies are electrically connected to the interconnect structure. The bodies operate as conductive posts for electrical interconnect.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: June 23, 2015
    Assignee: STATS ChipPAC, Ltd.
    Inventors: HeeJo Chi, NamJu Cho, HanGil Shin
  • Patent number: 9054098
    Abstract: A method of manufacture of an integrated circuit packaging system includes: forming a peripheral interconnect having a bond finger and a contact pad with a trace in direct contact with the bond finger and the contact pad, the bond finger vertically offset from the contact pad; connecting an integrated circuit die and the bond finger; and forming a module encapsulation on the integrated circuit die, the bond finger and the trace exposed from the module encapsulation.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: June 9, 2015
    Assignee: STATS ChipPAC Ltd.
    Inventors: NamJu Cho, HeeJo Chi, ChanHoon Ko
  • Patent number: 9048306
    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: Grant
    Filed: March 14, 2012
    Date of Patent: June 2, 2015
    Assignee: STATS ChipPAC, Ltd.
    Inventors: HeeJo Chi, NamJu Cho, HanGil Shin
  • Publication number: 20150123273
    Abstract: A semiconductor device has an interposer frame mounted over a carrier. A semiconductor die has an active surface and bumps formed over the active surface. The semiconductor die can be mounted within a die opening of the interposer frame or over the interposer frame. Stacked semiconductor die can also be mounted within the die opening of the interposer frame or over the interposer frame. Bond wires or bumps are formed between the semiconductor die and interposer frame. An encapsulant is deposited over the interposer frame and semiconductor die. An interconnect structure is formed over the encapsulant and bumps of the first semiconductor die. An electronic component, such as a discrete passive device, semiconductor die, or stacked semiconductor die, is mounted over the semiconductor die and interposer frame. The electronic component has an I/O count less than an I/O count of the semiconductor die.
    Type: Application
    Filed: January 13, 2015
    Publication date: May 7, 2015
    Applicant: STATS ChipPAC, Ltd.
    Inventors: NamJu Cho, HeeJo Chi, HanGil Shin
  • Publication number: 20150091157
    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: April 2, 2015
    Inventors: HeeJo Chi, HanGil Shin, NamJu Cho
  • Patent number: 8951834
    Abstract: Methods of forming solder balls for semiconductor packages using film-assisted molding include providing a substrate, forming a plurality of solder balls on the substrate where each solder ball has an initial profile, and coupling a substantially planar film to the solder balls. As an encapsulation is deposited over the substrate and around the solder balls, the substantially planar film and the encapsulation, along with the molding process, can cause each solder ball to morph from its initial profile to a final profile, where the final profile is generally different from the initial profile.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: February 10, 2015
    Assignee: STATS ChipPAC Ltd.
    Inventors: Kyung Moon Kim, Il Kwon Shim, HeeJo Chi, HanGil Shin
  • Patent number: 8932907
    Abstract: A semiconductor device has an interposer frame mounted over a carrier. A semiconductor die has an active surface and bumps formed over the active surface. The semiconductor die can be mounted within a die opening of the interposer frame or over the interposer frame. Stacked semiconductor die can also be mounted within the die opening of the interposer frame or over the interposer frame. Bond wires or bumps are formed between the semiconductor die and interposer frame. An encapsulant is deposited over the interposer frame and semiconductor die. An interconnect structure is formed over the encapsulant and bumps of the first semiconductor die. An electronic component, such as a discrete passive device, semiconductor die, or stacked semiconductor die, is mounted over the semiconductor die and interposer frame. The electronic component has an I/O count less than an I/O count of the semiconductor die.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: January 13, 2015
    Assignee: STATS ChipPAC, Ltd.
    Inventors: NamJu Cho, HeeJo Chi, HanGil Shin
  • Publication number: 20150004748
    Abstract: Methods of forming conductive jumper traces for semiconductor devices and packages. Substrate is provided having first, second and third trace lines formed thereon, where the first trace line is between the second and third trace lines. The first trace line can be isolated with a covering layer. A conductive layer can be formed between the second and third trace lines and over the first trace line by a depositing process followed by a heating process to alter the chemical properties of the conductive layer. The resulting conductive layer is able to conform to the covering layer and serve to provide electrical connection between the second and third trace lines.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 1, 2015
    Inventors: HanGil Shin, HeeJo Chi, NamJu Cho