Patents by Inventor Yong-Cheng Chuang

Yong-Cheng Chuang 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: 20190189494
    Abstract: A manufacturing method of a package structure is provided. The method includes the following steps. A package panel is provided. The package panel includes a first encapsulation, a plurality of first integrated circuit components and a plurality of redistribution circuit patterns electrically connected to the first integrated circuit components, the first integrated circuit components are encapsulated by the first encapsulation, and the redistribution circuit patterns are distributed on the first encapsulation and the first integrated circuit components. The first encapsulation of the package panel is cut to form a plurality of singulated package strips. One of the singulated package strips is attached onto an attachment region of a substrate. The substrate includes at least one tooling hole distributed outside of the attachment region. The package process is performed over the singulated package strip with the substrate affixed through the tooling hole to form the package structure.
    Type: Application
    Filed: December 20, 2017
    Publication date: June 20, 2019
    Applicant: Powertech Technology Inc.
    Inventors: Hsing-Te Chung, Yong-Cheng Chuang, Kuo-Ting Lin, Nan-Chun Lin
  • Patent number: 10304716
    Abstract: A manufacturing method of a package structure is provided. The method includes the following steps. A package panel is provided. The package panel includes a first encapsulation, a plurality of first integrated circuit components and a plurality of redistribution circuit patterns electrically connected to the first integrated circuit components, the first integrated circuit components are encapsulated by the first encapsulation, and the redistribution circuit patterns are distributed on the first encapsulation and the first integrated circuit components. The first encapsulation of the package panel is cut to form a plurality of singulated package strips. One of the singulated package strips is attached onto an attachment region of a substrate. The substrate includes at least one tooling hole distributed outside of the attachment region. The package process is performed over the singulated package strip with the substrate affixed through the tooling hole to form the package structure.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: May 28, 2019
    Assignee: Powertech Technology Inc.
    Inventors: Hsing-Te Chung, Yong-Cheng Chuang, Kuo-Ting Lin, Nan-Chun Lin
  • Patent number: 10128211
    Abstract: A thin fan-out multi-chip stacked package structure including a plurality of stacked chips is provided. The electrodes of the stacked chips and the active surface of the top chip are exposed. A dummy spacer and an alignment structure are disposed over the active surface. Each bonding wire has a bonding thread bonded to a chip electrode and an integrally-connected vertical wire segment. A flat encapsulant encapsulates the chip stacked structure and the bonding wires. Polished cross-sectional surfaces of the bonding wires and a surface of the alignment structure are exposed by the flat surface of the encapsulant. A redistribution layer structure is formed on the flat surface. A passivation layer covers the flat surface and exposes the polished cross-sectional surfaces and the alignment structure. Fan-out circuits are formed on the passivation layer and are connected to the polished cross-sectional surfaces of the bonding wires and the alignment structure.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: November 13, 2018
    Assignee: Powertech Technology Inc.
    Inventors: Chia-Wei Chang, Yong-Cheng Chuang, Yu-Tso Lin
  • Patent number: 10079222
    Abstract: A POP structure includes a circuit board, a bottom package structure, a top package structure, and a metal frame structure. The circuit board has a plurality of signal pads and dummy pads. The dummy pads surround the signal pads. The bottom package structure is disposed over the circuit board. The bottom package structure is electrically connected to the signal pads. The top package structure is disposed over the bottom package structure. The top package structure is electrically connected to the bottom package structure. The metal frame structure includes a body and a plurality of terminal pins. The body is located between the top package structure and the bottom package structure. The terminal pins extend outward from an edge of the top package structure to connect the top package structure and the dummy pads of the circuit board.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: September 18, 2018
    Assignee: Powertech Technology Inc.
    Inventors: Chien-Wei Chou, Yong-Cheng Chuang
  • Publication number: 20180211936
    Abstract: A thin fan-out multi-chip stacked package structure including a plurality of stacked chips is provided. The electrodes of the stacked chips and the active surface of the top chip are exposed. A dummy spacer and an alignment structure are disposed over the active surface. Each bonding wire has a bonding thread bonded to a chip electrode and an integrally-connected vertical wire segment. A flat encapsulant encapsulates the chip stacked structure and the bonding wires. Polished cross-sectional surfaces of the bonding wires and a surface of the alignment structure are exposed by the flat surface of the encapsulant. A redistribution layer structure is formed on the flat surface. A passivation layer covers the flat surface and exposes the polished cross-sectional surfaces and the alignment structure. Fan-out circuits are formed on the passivation layer and are connected to the polished cross-sectional surfaces of the bonding wires and the alignment structure.
    Type: Application
    Filed: June 22, 2017
    Publication date: July 26, 2018
    Applicant: Powertech Technology Inc.
    Inventors: Chia-Wei Chang, Yong-Cheng Chuang, Yu-Tso Lin
  • Publication number: 20180138149
    Abstract: A POP structure includes a circuit board, a bottom package structure, a top package structure, and a metal frame structure. The circuit board has a plurality of signal pads and dummy pads. The dummy pads surround the signal pads. The bottom package structure is disposed over the circuit board. The bottom package structure is electrically connected to the signal pads. The top package structure is disposed over the bottom package structure. The top package structure is electrically connected to the bottom package structure. The metal frame structure includes a body and a plurality of terminal pins. The body is located between the top package structure and the bottom package structure. The terminal pins extend outward from an edge of the top package structure to connect the top package structure and the dummy pads of the circuit board.
    Type: Application
    Filed: November 16, 2016
    Publication date: May 17, 2018
    Applicant: Powertech Technology Inc.
    Inventors: Chien-Wei Chou, Yong-Cheng Chuang
  • Patent number: 9859187
    Abstract: Disclosed is a BGA package with protective circuitry layouts to prevent cracks of the bottom circuit in the specific area of the substrate leading to package failure and to enhance packaging yield of BGA packages. A chip is disposed on the upper surface of the substrate. A chip projective area is defined inside the bottom surface of the substrate and is established by vertically projecting the edges of the chip on the upper surface to the bottom surface of the substrate. At least an external contact pad vulnerable to thermal stress is located within the chip projective area. A protective area and a wiring area are respectively defined in the chip projective area at two opposing sides of the external contact pad. A plurality of protective mini-pads are arranged in a dotted-line layout and disposed in the projective area to partially surround the external contact pad to avoid thermal stress concentrated on the protective area and to further prevent circuitry cracks in the package structure.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: January 2, 2018
    Assignee: Powertech Technology Inc.
    Inventor: Yong-Cheng Chuang
  • Patent number: 9831219
    Abstract: A manufacturing method of a package structure includes at least the following steps. At least one first die is disposed over a carrier. The first die is encapsulated using a first encapsulant. The first encapsulant exposes part of the first die. A redistribution layer (RDL) is formed over the first encapsulant. The RDL has a first surface and a second surface opposite to the first surface. The first surface faces the first encapsulant. The first encapsulant and the first die are separated from the carrier. A plurality of second dies are disposed on the second surface of the RDL. The second dies are encapsulated using the second encapsulant. A plurality of conductive terminals are formed on the first surface of the RDL.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: November 28, 2017
    Assignee: Powertech Technology Inc.
    Inventors: Yong-Cheng Chuang, Kuo-Ting Lin, Li-Chih Fang, Chia-Jen Chou
  • Publication number: 20170309597
    Abstract: A manufacturing method of a package structure includes at least the following steps. At least one first die is disposed over a carrier. The first die is encapsulated using a first encapsulant. The first encapsulant exposes part of the first die. A redistribution layer (RDL) is formed over the first encapsulant. The RDL has a first surface and a second surface opposite to the first surface. The first surface faces the first encapsulant. The first encapsulant and the first die are separated from the carrier. A plurality of second dies are disposed on the second surface of the RDL. The second dies are encapsulated using the second encapsulant. A plurality of conductive terminals are formed on the first surface of the RDL.
    Type: Application
    Filed: April 20, 2017
    Publication date: October 26, 2017
    Applicant: Powertech Technology Inc.
    Inventors: Yong-Cheng Chuang, Kuo-Ting Lin, Li-Chih Fang, Chia-Jen Chou
  • Patent number: 9761568
    Abstract: A fan out type multi-chip stacked package includes a chip stacked assembly having a plurality of chips vertically stacked. The electrodes of the chips and one active surface among all active surfaces are not covered by the stacked chips. A plurality of flip-chip bumps of a dummy flip chip are coupled to the electrodes of the chips. An encapsulant encapsulates the chip stacked assembly and the flip-chip bumps. The encapsulant has a planar surface. The flip-chip bumps have a plurality of bonding surfaces exposed from and coplanar to the planar surface. A redistribution layer is disposed on the planar surface and includes a plurality of fan out circuits electrically connected the bonding surfaces of the flip-chip bumps. Thus, the package has better resistance against mold flow impact to effectively reduce the risk of wire sweeping.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: September 12, 2017
    Assignee: Powertech Technology Inc.
    Inventors: Li-Chih Fang, Chia-Wei Chang, Kuo-Ting Lin, Yong-Cheng Chuang
  • Patent number: 9716080
    Abstract: A thin fan-out multi-chip stacked package structure including a plurality of stacked chips is provided. The electrodes of the stacked chips and the active surface of the top chip are exposed. A dummy spacer is disposed on the active surface. Each bonding wire has a bonding thread bonded to a chip electrode and an integrally-connected vertical wire segment. A flat encapsulant encapsulates the chip stacked structure and the bonding wires. Polished cross-sectional surfaces of the bonding wires and a surface of the dummy spacer are exposed by the flat surface of the encapsulant. A redistribution layer structure is formed on the flat surface. A passivation layer covers the flat surface and the surface of the dummy spacer but exposes the polished cross-sectional surfaces. Fan-out circuits are formed on the passivation layer and are connected to the polished cross-sectional surfaces of the bonding wires.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: July 25, 2017
    Assignee: Powertech Technology Inc.
    Inventors: Yong-Cheng Chuang, Chia-Wei Chang
  • Publication number: 20170194231
    Abstract: Disclosed is a BGA package with protective circuitry layouts to prevent cracks of the bottom circuit in the specific area of the substrate leading to package failure and to enhance packaging yield of BGA packages. A chip is disposed on the upper surface of the substrate. A chip projective area is defined inside the bottom surface of the substrate and is established by vertically projecting the edges of the chip on the upper surface to the bottom surface of the substrate. At least an external contact pad vulnerable to thermal stress is located within the chip projective area. A protective area and a wiring area are respectively defined in the chip projective area at two opposing sides of the external contact pad. A plurality of protective mini-pads are arranged in a dotted-line layout and disposed in the projective area to partially surround the external contact pad to avoid thermal stress concentrated on the protective area and to further prevent circuitry cracks in the package structure.
    Type: Application
    Filed: December 20, 2016
    Publication date: July 6, 2017
    Inventor: Yong-Cheng CHUANG
  • Publication number: 20170186737
    Abstract: A fan out type multi-chip stacked package includes a chip stacked assembly having a plurality of chips vertically stacked. The electrodes of the chips and one active surface among all active surfaces are not covered by the stacked chips. A plurality of flip-chip bumps of a dummy flip chip are coupled to the electrodes of the chips. An encapsulant encapsulates the chip stacked assembly and the flip-chip bumps. The encapsulant has a planar surface. The flip-chip bumps have a plurality of bonding surfaces exposed from and coplanar to the planar surface. A redistribution layer is disposed on the planar surface and includes a plurality of fan out circuits electrically connected the bonding surfaces of the flip-chip bumps. Thus, the package has better resistance against mold flow impact to effectively reduce the risk of wire sweeping.
    Type: Application
    Filed: December 19, 2016
    Publication date: June 29, 2017
    Inventors: Li-Chih FANG, Chia-Wei CHANG, Kuo-Ting LIN, Yong-Cheng CHUANG
  • Patent number: 9673178
    Abstract: Provided is a package structure including a substrate, N dies, N first pads, N vertical wires, and a second pad. The N dies are stacked alternatively on the substrate, so as to form a multi-die stack structure. The N dies include, from bottom to top, first to Nth dies, wherein N is an integer greater than 1. The first die is a bottom die, and the Nth die is a top die. The first pads are disposed on an active surface of the dies respectively. The vertical wires are disposed on the first pads respectively. The second pad is disposed on the top die.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: June 6, 2017
    Assignee: Powertech Technology Inc.
    Inventors: Chia-Hsiang Yuan, Chia-Wei Chang, Kuo-Ting Lin, Yong-Cheng Chuang
  • Patent number: 9659911
    Abstract: A package structure and a manufacturing method thereof are provided. The package structure includes a redistribution layer (RDL), at least one first die, a plurality of conductive terminals and solder balls, a first encapsulant, a plurality of second dies, and a second encapsulant. The RDL has a first surface and a second surface opposite to the first surface. The first die and the conductive terminals are electrically connected to the RDL and are located on the first surface of the RDL. The first encapsulant encapsulates the first die and the conductive terminals. The first encapsulant exposes part of the conductive terminals. The solder balls are electrically connected to the conductive terminals and are located over the conductive terminals exposed by the first encapsulant. The second dies are electrically connected to the RDL and are located on the second surface of the RDL. The second encapsulant encapsulates the second dies.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: May 23, 2017
    Assignee: Powertech Technology Inc.
    Inventors: Chia-Wei Chang, Li-Chih Fang, Kuo-Ting Lin, Yong-Cheng Chuang
  • Publication number: 20170110439
    Abstract: Provided is a package structure including a substrate, N dies, N first pads, N vertical wires, and a second pad. The N dies are stacked alternatively on the substrate, so as to form a multi-die stack structure. The N dies include, from bottom to top, first to Nth dies, wherein N is an integer greater than 1. The first die is a bottom die, and the Nth die is a top die. The first pads are disposed on an active surface of the dies respectively. The vertical wires are disposed on the first pads respectively. The second pad is disposed on the top die.
    Type: Application
    Filed: December 16, 2015
    Publication date: April 20, 2017
    Inventors: Chia-Hsiang Yuan, Chia-Wei Chang, Kuo-Ting Lin, Yong-Cheng Chuang