Patents by Inventor Tanawan CHAOWASAKOO

Tanawan CHAOWASAKOO 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: 11710681
    Abstract: An embodiment related to a device. The device includes a first die with first and second die surfaces. The second die surface is bonded to a first die attach pad (DAP) disposed on a first substrate surface of a package substrate and the first die surface includes a first die contact pad. The device also includes a first clip bond including a first clip bond horizontal planar portion attached to the first die contact pad on the first die surface, and a first clip bond vertical portion disposed on an edge of the first clip bond horizontal planar portion. The first clip bond vertical portion is attached to a first substrate bond pad on the first substrate surface. The device further includes a first conductive clip-die bonding layer with spacers on the first die contact pad of the first die.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: July 25, 2023
    Assignee: UTAC Headquarters Pte. Ltd.
    Inventors: Tanawan Chaowasakoo, Hua Hong Tan, Alexander Lucero Laylo, Thanawat Jaengkrajarng
  • Publication number: 20220028762
    Abstract: An embodiment related to a device. The device includes a first die with first and second die surfaces. The second die surface is bonded to a first die attach pad (DAP) disposed on a first substrate surface of a package substrate and the first die surface includes a first die contact pad. The device also includes a first clip bond including a first clip bond horizontal planar portion attached to the first die contact pad on the first die surface, and a first clip bond vertical portion disposed on an edge of the first clip bond horizontal planar portion. The first clip bond vertical portion is attached to a first substrate bond pad on the first substrate surface. The device further includes a first conductive clip-die bonding layer with spacers on the first die contact pad of the first die.
    Type: Application
    Filed: October 6, 2021
    Publication date: January 27, 2022
    Inventors: Tanawan CHAOWASAKOO, Hua Hong TAN, Alexander Lucero LAYLO, Thanawat JAENGKRAJARNG
  • Patent number: 11145575
    Abstract: An embodiment related to a method for forming a device is disclosed. The method includes providing a package substrate having a first die attach pad (DAP) and a first bond pad, forming a first conductive die-substrate bonding layer on the first DAP, and attaching a first major surface of a first die to the first DAP. The first die includes a first die contact pad on a second major surface of the first die. A first conductive clip-die bonding layer with spacers is formed on the first die contact pad of the first die. A first conductive clip-substrate bonding layer is formed on the first bond pad of the package substrate. The method also includes attaching a first clip bond to the first die and the first bond pad. The first clip bond includes a first horizontal planar portion attached to the first die over the first die contact pad and a second vertical portion attached to the first bond pad.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: October 12, 2021
    Assignee: UTAC Headquarters Pte. Ltd.
    Inventors: Tanawan Chaowasakoo, Hua Hong Tan, Alexander Lucero Laylo, Thanawat Jaengkrajarng
  • Publication number: 20210202339
    Abstract: The present disclosure is directed to improving package adhesion to provide more reliable semiconductor packages. The semiconductor package may be, for example, a leadframe including one or multiple dies attached thereto. The semiconductor package may include only clip bonds or only wire bonds or a combination of clip bonds and wire bonds. An adhesion enhancement coating may be disposed in between the package substrate and the encapsulant to improve package adhesion. For example, the adhesion enhancement coating enhances the sealing by bonding respectively with the inorganic materials of the package substrate and the organic materials of the encapsulant.
    Type: Application
    Filed: December 30, 2020
    Publication date: July 1, 2021
    Inventors: Surachai Uraisakul, Siriwanna Ounkaew, Panumard Thammavet, Tanawan Chaowasakoo
  • Publication number: 20200144162
    Abstract: An embodiment related to a method for forming a device is disclosed. The method includes providing a package substrate having a first die attach pad (DAP) and a first bond pad, forming a first conductive die-substrate bonding layer on the first DAP, and attaching a first major surface of a first die to the first DAP. The first die includes a first die contact pad on a second major surface of the first die. A first conductive clip-die bonding layer with spacers is formed on the first die contact pad of the first die. A first conductive clip-substrate bonding layer is formed on the first bond pad of the package substrate. The method also includes attaching a first clip bond to the first die and the first bond pad. The first clip bond includes a first horizontal planar portion attached to the first die over the first die contact pad and a second vertical portion attached to the first bond pad.
    Type: Application
    Filed: November 7, 2019
    Publication date: May 7, 2020
    Inventors: Tanawan CHAOWASAKOO, Hua Hong TAN, Alexander Lucero LAYLO, Thanawat JAENGKRAJARNG