Patents by Inventor Chih-Chien Ho

Chih-Chien Ho 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: 20240128094
    Abstract: A method for forming integrated circuit (IC) packages includes mounting dies on a strip of interconnects and applying wire bonds in regions of the strip of interconnects proximate to mold shields. The method also includes adjusting the mold shields of the strip of interconnects. The method includes flowing a mold compound on the strip of interconnects to form a strip of IC packages. Mold injection pressure causes the mold compound to flow from a first end of the strip of interconnects across the strip of interconnects to a second end of the strip of interconnects, and the mold shields impede the flow of the mold compound through the regions of the strip of interconnects proximate to the mold shields. The method includes singulating the strip of IC packages to form the IC packages.
    Type: Application
    Filed: October 14, 2022
    Publication date: April 18, 2024
    Inventor: CHIH-CHIEN HO
  • Patent number: 11948721
    Abstract: An apparatus includes a laminate, the laminate including a dielectric layer having a first surface and a second surface opposed to the first surface, and a conductive layer forming a circuit element overlying the first surface of the dielectric layer. The apparatus further includes a magnetic layer over the conductive layer. A first edge surface of the magnetic layer is coplanar with a first edge surface of the laminate, and a second edge surface of the magnetic layer is coplanar with a second edge surface of the laminate.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: April 2, 2024
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Ying-Chuan Kao, Hung-Yu Chou, Dong-Ren Peng, Jun Jie Kuo, Kenji Otake, Chih-Chien Ho
  • Patent number: 11908705
    Abstract: A method for aligning interconnects that includes trimming and forming a frame of strips of interconnects. The frame of strips of interconnects includes interdigitated pins. The method also includes removing siderails from the frame of strips of interconnects to provide an array of strips of interconnects. The method includes aligning a first set of strips of interconnects in the array of strips of interconnects such that pins of the first set of strips of interconnects are aligned with pins of a second set of strips of interconnects in the array of strips of interconnects. A strip of interconnects of the first set of strips of interconnects are adjacent to a strip of interconnects of the second set of strips of interconnects to provide an aligned array of strips of interconnects. The method further includes singulating the aligned array of strips of interconnects.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: February 20, 2024
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Chih-Chien Ho
  • Patent number: 11817374
    Abstract: A packaged electronic device has a package structure, first leads, second leads and a tie bar. The package structure has a first side, a second side, a third side, a fourth side, a fifth side and a sixth side, the second side spaced from the first side along a first direction, the fourth side spaced from the third side along an orthogonal second direction, and the sixth side spaced from the fifth side along an orthogonal third direction. The first leads extend outward in a first plane of the second and third directions from respective portions of the third side, the second leads extend outward in the first plane from respective portions of the fourth side, and the tie bar is exposed along the fifth side in a second plane of the second and third directions, the second plane between the first plane and the first side.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: November 14, 2023
    Assignee: Texas Instruments Incorporated
    Inventors: Chih-Chien Ho, Bo-Hsun Pan, Yuh-Harng Chien
  • Publication number: 20230317571
    Abstract: An electronic device with a conductive lead having an internal first section and an external second section extending outside a molded package structure, the first section having an obstruction feature extending vertically from a top or bottom side of the conductive lead and engaging a portion of the package structure to oppose movement of the conductive lead outward from the package structure.
    Type: Application
    Filed: March 30, 2022
    Publication date: October 5, 2023
    Inventors: Hsiang Ming Hsiao, Hung-Yu Chou, Yuh-Harng Chien, Chih-Chien Ho, Che Wei Tu, Bo-Hsun Pan, Megan Chang
  • Publication number: 20230121743
    Abstract: A method for aligning interconnects that includes trimming and forming a frame of strips of interconnects. The frame of strips of interconnects includes interdigitated pins. The method also includes removing siderails from the frame of strips of interconnects to provide an array of strips of interconnects. The method includes aligning a first set of strips of interconnects in the array of strips of interconnects such that pins of the first set of strips of interconnects are aligned with pins of a second set of strips of interconnects in the array of strips of interconnects. A strip of interconnects of the first set of strips of interconnects are adjacent to a strip of interconnects of the second set of strips of interconnects to provide an aligned array of strips of interconnects. The method further includes singulating the aligned array of strips of interconnects.
    Type: Application
    Filed: October 18, 2021
    Publication date: April 20, 2023
    Inventor: Chih-Chien Ho
  • Publication number: 20220336331
    Abstract: A packaged electronic device has a package structure, first leads, second leads and a tie bar. The package structure has a first side, a second side, a third side, a fourth side, a fifth side and a sixth side, the second side spaced from the first side along a first direction, the fourth side spaced from the third side along an orthogonal second direction, and the sixth side spaced from the fifth side along an orthogonal third direction. The first leads extend outward in a first plane of the second and third directions from respective portions of the third side, the second leads extend outward in the first plane from respective portions of the fourth side, and the tie bar is exposed along the fifth side in a second plane of the second and third directions, the second plane between the first plane and the first side.
    Type: Application
    Filed: April 14, 2021
    Publication date: October 20, 2022
    Inventors: Chih-Chien Ho, Bo-Hsun Pan, Yuh-Harng Chien
  • Patent number: 11444012
    Abstract: In a described example, an apparatus includes a package substrate with a split die pad having a slot between a die mount portion and a wire bonding portion; a first end of the wire bonding portion coupled to the die mount portion at one end of the slot; a second end of the wire bonding portion coupled to a first lead on the package substrate. At least one semiconductor die is mounted on the die mount portion; a first end of a first wire bond is bonded to a first bond pad on the at least one semiconductor die; a second end of the first wire bond is bonded to the wire bonding portion; and mold compound covers the at least one semiconductor die, the die mount portion, the wire bonding portion, and fills the slot.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: September 13, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yuh-Harng Chien, Chang-Yen Ko, Chih-Chien Ho
  • Patent number: 11342247
    Abstract: A leadframe includes a first die attach pad (“DAP”) having a first longitudinally extending edge surface and a second DAP having a first longitudinally extending edge surface. The second DAP is positioned with the first longitudinally extending edge surface thereof in adjacent, laterally and vertically spaced relationship with the first longitudinally extending edge surface of the first DAP.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: May 24, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Chia-Yu Chang, Chih-Chien Ho, Steven Su
  • Publication number: 20210375525
    Abstract: An apparatus includes a laminate, the laminate including a dielectric layer having a first surface and a second surface opposed to the first surface, and a conductive layer forming a circuit element overlying the first surface of the dielectric layer. The apparatus further includes a magnetic layer over the conductive layer. A first edge surface of the magnetic layer is coplanar with a first edge surface of the laminate, and a second edge surface of the magnetic layer is coplanar with a second edge surface of the laminate.
    Type: Application
    Filed: May 26, 2020
    Publication date: December 2, 2021
    Inventors: Ying-Chuan Kao, Hung-Yu Chou, Dong-Ren Peng, Jun Jie Kuo, Kenji Otake, Chih-Chien Ho
  • Publication number: 20210305139
    Abstract: In a described example, an apparatus includes a package substrate with a split die pad having a slot between a die mount portion and a wire bonding portion; a first end of the wire bonding portion coupled to the die mount portion at one end of the slot; a second end of the wire bonding portion coupled to a first lead on the package substrate. At least one semiconductor die is mounted on the die mount portion; a first end of a first wire bond is bonded to a first bond pad on the at least one semiconductor die; a second end of the first wire bond is bonded to the wire bonding portion; and mold compound covers the at least one semiconductor die, the die mount portion, the wire bonding portion, and fills the slot.
    Type: Application
    Filed: March 26, 2020
    Publication date: September 30, 2021
    Inventors: Yuh-Harng Chien, Chang-Yen Ko, Chih-Chien Ho
  • Patent number: 11081428
    Abstract: An electronic device includes a package structure with opposite first and second sides spaced apart along a first direction, opposite third and fourth sides spaced apart along a second direction, opposite fifth and sixth sides spaced apart along a third direction, the first, second, and third directions being orthogonal to one another. A set of first leads extend outward from the first side along the first direction, a set of second leads extend outward from the second side along the first direction, and a thermal pad includes a first portion that extends along a portion of the fifth side, and a second portion that extends along a portion of the third side to facilitate cooling and visual solder inspection when soldered to a host printed circuit board.
    Type: Grant
    Filed: August 10, 2019
    Date of Patent: August 3, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Stanley Chou, Yuh-Harng Chien, Steven Alfred Kummerl, Bo-Hsun Pan, Pi-Chiang Huang, Frank Yu, Chih-Chien Ho
  • Publication number: 20210043548
    Abstract: An electronic device includes a package structure with opposite first and second sides spaced apart along a first direction, opposite third and fourth sides spaced apart along a second direction, opposite fifth and sixth sides spaced apart along a third direction, the first, second, and third directions being orthogonal to one another. A set of first leads extend outward from the first side along the first direction, a set of second leads extend outward from the second side along the first direction, and a thermal pad includes a first portion that extends along a portion of the fifth side, and a second portion that extends along a portion of the third side to facilitate cooling and visual solder inspection when soldered to a host printed circuit board.
    Type: Application
    Filed: August 10, 2019
    Publication date: February 11, 2021
    Applicant: Texas Instruments Incorporated
    Inventors: Stanley Chou, Yuh-Harng Chien, Steven Alfred Kummerl, Bo-Hsun Pan, Pi-Chiang Huang, Frank Yu, Chih-Chien Ho
  • Patent number: 10811343
    Abstract: A leadframe includes a plurality of interconnected support members. A pair of die pads is connected to the support members and configured to receive a pair of dies electrically connected by at least one wire. A support bracket extends between the die pads and includes a surface for maintaining the at least one wire at a predetermined distance from the die pads during overmolding of the leadframe.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: October 20, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yuh-Harng Chien, Chih-Chien Ho, Steven Su
  • Publication number: 20200185308
    Abstract: A leadframe includes a first die attach pad (“DAP”) having a first longitudinally extending edge surface and a second DAP having a first longitudinally extending edge surface. The second DAP is positioned with the first longitudinally extending edge surface thereof in adjacent, laterally and vertically spaced relationship with the first longitudinally extending edge surface of the first DAP.
    Type: Application
    Filed: February 12, 2020
    Publication date: June 11, 2020
    Inventors: Chia-Yu Chang, Chih-Chien Ho, Steven Su
  • Patent number: 10600724
    Abstract: A leadframe includes a first die attach pad (“DAP”) having a first longitudinally extending edge surface and a second DAP having a first longitudinally extending edge surface. The second DAP is positioned with the first longitudinally extending edge surface thereof in adjacent, laterally and vertically spaced relationship with the first longitudinally extending edge surface of the first DAP.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: March 24, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Chia-Yu Chang, Chih-Chien Ho, Steven Su
  • Patent number: 10573581
    Abstract: A leadframe has a peripheral frame. A die attach pad (DAP) is positioned inwardly and downwardly of the peripheral frame. Two spaced apart parallel arms engage one side of the DAP. In one embodiment the arms are portions of a U-shaped strap.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: February 25, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Chih-Chien Ho, Chung-Hao Lin, Yuh-Harng Chien
  • Patent number: 10529654
    Abstract: A leadframe includes a plurality of interconnected support members. A pair of die pads is connected to the support members and configured to receive a pair of dies electrically connected by at least one wire. A support bracket extends between the die pads and includes a surface for maintaining the at least one wire at a predetermined distance from the die pads during overmolding of the leadframe.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: January 7, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yuh-Harng Chien, Chih-Chien Ho, Steven Su
  • Publication number: 20190385899
    Abstract: An apparatus includes a lead frame, a dam and adhesive on portions of the lead frame, and an integrated circuit die having a portion on the dam and another portion on the adhesive. The lead frame can include two portions, or two lead frames. The dam can bridge a space between the two lead frames. The dam can be smaller than the integrated circuit die in at least a width dimension of the dam relative to a width dimension of the integrated circuit die, providing that the integrated circuit die overhangs the dam on each side of the width dimension of the dam. Adhesive is located between the integrated circuit die and each lead frame, adjacent to and on each side of the dam. The dam prevents adhesive from spreading into the space between the lead frames.
    Type: Application
    Filed: August 26, 2019
    Publication date: December 19, 2019
    Inventors: Chang-Yen Ko, Chung-Ming Cheng, Megan Chang, Chih-Chien HO
  • Patent number: 10395971
    Abstract: An apparatus includes a lead frame, a dam and adhesive on portions of the lead frame, and an integrated circuit die having a portion on the dam and another portion on the adhesive. The lead frame can include two portions, or two lead frames. The dam can bridge a space between the two lead frames. The dam can be smaller than the integrated circuit die in at least a width dimension of the dam relative to a width dimension of the integrated circuit die, providing that the integrated circuit die overhangs the dam on each side of the width dimension of the dam. Adhesive is located between the integrated circuit die and each lead frame, adjacent to and on each side of the dam. The dam prevents adhesive from spreading into the space between the lead frames.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: August 27, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Chang-Yen Ko, Chung-Ming Cheng, Megan Chang, Chih-Chien Ho