Patents by Inventor Loon Kwang Tan

Loon Kwang Tan 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: 20230253365
    Abstract: Circuit boards, LED lighting systems and methods of manufacture are described. A circuit board includes a ceramic carrier and a body on the ceramic carrier. The body includes dielectric layers and slots formed completely through a thickness of the dielectric layers. The slots are filled with a dielectric material. A conductive pad is provided on a surface of each of the slots opposite the ceramic carrier.
    Type: Application
    Filed: April 19, 2023
    Publication date: August 10, 2023
    Applicant: LUMILEDS LLC
    Inventors: Loon-Kwang TAN, Tze Yang HIN
  • Patent number: 11664347
    Abstract: Circuit boards, LED lighting systems and methods of manufacture are described. A circuit board includes a ceramic carrier and a body on the ceramic carrier. The body includes dielectric layers and slots formed completely through a thickness of the dielectric layers. The slots are filled with a dielectric material. A conductive pad is provided on a surface of each of the slots opposite the ceramic carrier.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: May 30, 2023
    Assignee: LUMILEDS LLC
    Inventors: Loon-Kwang Tan, Tze Yang Hin
  • Publication number: 20210210463
    Abstract: Circuit boards, LED lighting systems and methods of manufacture are described. A circuit board includes a ceramic carrier and a body on the ceramic carrier. The body includes dielectric layers and slots formed completely through a thickness of the dielectric layers. The slots are filled with a dielectric material. A conductive pad is provided on a surface of each of the slots opposite the ceramic carrier.
    Type: Application
    Filed: March 4, 2020
    Publication date: July 8, 2021
    Applicant: LUMILEDS LLC
    Inventors: Loon-Kwang TAN, Tze Yang HIN
  • Patent number: 9748197
    Abstract: Techniques for packaging an integrated circuit include attaching a die to a conductive layer before forming dielectric layers on an opposing surface of the conductive layer. The conductive layer may first be formed on a carrier substrate before the die is disposed on the conductive layer. The die may be electrically coupled to the conductive layer via wires or solder bumps. The carrier substrate is removed before the dielectric layers are formed. The dielectric layers may collectively form a coreless package substrate for the integrated circuit package.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: August 29, 2017
    Assignee: Altera Corporation
    Inventors: Loon Kwang Tan, Yuanlin Xie, Ping Chet Tan
  • Publication number: 20160307868
    Abstract: Techniques for packaging an integrated circuit include attaching a die to a conductive layer before forming dielectric layers on an opposing surface of the conductive layer. The conductive layer may first be formed on a carrier substrate before the die is disposed on the conductive layer. The die may be electrically coupled to the conductive layer via wires or solder bumps. The carrier substrate is removed before the dielectric layers are formed. The dielectric layers may collectively form a coreless package substrate for the integrated circuit package.
    Type: Application
    Filed: June 24, 2016
    Publication date: October 20, 2016
    Inventors: Loon Kwang Tan, Yuanlin Xie, Ping Chet Tan
  • Patent number: 9425174
    Abstract: An integrated circuit package may include an integrated circuit die and a package substrate having a conductive pad. A conductive pillar is formed on a front surface of the integrated circuit die and directly contacts the conductive pad. Prior to contacting the conductive pad directly, the conductive pillar may be positioned adjacent to the conductive pad such that it is aligned to the conductive pad. The integrated circuit package further includes an interconnect structure that is formed in the package substrate. The interconnect structure may include conductive traces that are electrically connected to the conductive pad and the conductive pillar. An additional integrated circuit die may be mounted on the package substrate. The additional integrated circuit die may couple to the integrated circuit die through the interconnect structure.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: August 23, 2016
    Assignee: Altera Corporation
    Inventors: Tze Yang Hin, Loon Kwang Tan, Chew Ching Lim
  • Patent number: 9401287
    Abstract: Techniques for packaging an integrated circuit include attaching a die to a conductive layer before forming dielectric layers on an opposing surface of the conductive layer. The conductive layer may first be formed on a carrier substrate before the die is disposed on the conductive layer. The die may be electrically coupled to the conductive layer via wires or solder bumps. The carrier substrate is removed before the dielectric layers are formed. The dielectric layers may collectively form a coreless package substrate for the integrated circuit package.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: July 26, 2016
    Assignee: Altera Corporation
    Inventors: Loon Kwang Tan, Yuanlin Xie, Ping Chet Tan
  • Patent number: 9337240
    Abstract: A lead frame for an integrated circuit (IC) package is disclosed. The lead frame includes a center region and a plurality of lead fingers surrounding the center region. The plurality of lead fingers that surrounds the center region defines a periphery region around the center region. A portion of the plurality of lead fingers extends from the center region to hold the center region in place. Tie bars that are typically used to hold the center region in place may not be included in the lead frame.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: May 10, 2016
    Assignee: Altera Corporation
    Inventors: Guan Khai Lee, Loon Kwang Tan, Ping Chet Tan, Pheak Ti Teh
  • Publication number: 20150228506
    Abstract: Techniques for packaging an integrated circuit include attaching a die to a conductive layer before forming dielectric layers on an opposing surface of the conductive layer. The conductive layer may first be formed on a carrier substrate before the die is disposed on the conductive layer. The die may be electrically coupled to the conductive layer via wires or solder bumps. The carrier substrate is removed before the dielectric layers are formed. The dielectric layers may collectively form a coreless package substrate for the integrated circuit package.
    Type: Application
    Filed: February 7, 2014
    Publication date: August 13, 2015
    Applicant: Altera Corporation
    Inventors: Loon Kwang Tan, Yuanlin Xie, Ping Chet Tan
  • Patent number: 8541263
    Abstract: In an exemplary embodiment, a method takes as an input a package substrate on which multiple capacitors have been mounted in a ring as part of a design to effectuate on-package decoupling. The method involves plasma cleaning the package substrate and the capacitors to remove organic contaminants. The method then involves applying a thermoset plastic to encase the capacitors on the package substrate. In one embodiment, a heated metal mold is utilized and the thermoset plastic is placed therein. The method includes opening the metal mold and curing the molded thermoset plastic by baking the molded thermoset plastic at an elevated temperature.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: September 24, 2013
    Assignee: Altera Corporation
    Inventors: Teik Tiong Toong, Loon Kwang Tan
  • Patent number: 8525326
    Abstract: An integrated circuit (IC) package with a plurality of chip capacitors placed on a surface of a die is disclosed. The chip capacitors may be placed on top of the die with an interposal substrate layer. Placing chip capacitors on top of the die may reduce the size of the packaging substrate required. One or more wires may be used to connect the chip capacitors on the interposal layer to the packaging substrate. The IC package may include a lid and a thermal interface material (TIM) placed on top of the die. The lid may be shaped such that a protruding portion of the lid contacts the die directly through the TIM to improve heat dissipation.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: September 3, 2013
    Assignee: Altera Corporation
    Inventors: Teik Tiong Toong, Loon Kwang Tan
  • Publication number: 20110272785
    Abstract: An integrated circuit (IC) package with a plurality of chip capacitors placed on a surface of a die is disclosed. The chip capacitors may be placed on top of the die with an interposal substrate layer. Placing chip capacitors on top of the die may reduce the size of the packaging substrate required. One or more wires may be used to connect the chip capacitors on the interposal layer to the packaging substrate. The IC package may include a lid and a thermal interface material (TIM) placed on top of the die. The lid may be shaped such that a protruding portion of the lid contacts the die directly through the TIM to improve heat dissipation.
    Type: Application
    Filed: July 20, 2011
    Publication date: November 10, 2011
    Inventors: Teik Tiong Toong, Loon Kwang Tan
  • Patent number: 7989942
    Abstract: An integrated circuit (IC) package with a plurality of chip capacitors placed on a surface of a die is disclosed. The chip capacitors may be placed on top of the die with an interposal substrate layer. Placing chip capacitors on top of the die may reduce the size of the packaging substrate required. One or more wires may be used to connect the chip capacitors on the interposal layer to the packaging substrate. The IC package may include a lid and a thermal interface material (TIM) placed on top of the die. The lid may be shaped such that a protruding portion of the lid contacts the die directly through the TIM to improve heat dissipation.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: August 2, 2011
    Assignee: Altera Corporation
    Inventors: Teik Tiong Toong, Loon Kwang Tan
  • Publication number: 20100181644
    Abstract: An integrated circuit (IC) package with a plurality of chip capacitors placed on a surface of a die is disclosed. The chip capacitors may be placed on top of the die with an interposal substrate layer. Placing chip capacitors on top of the die may reduce the size of the packaging substrate required. One or more wires may be used to connect the chip capacitors on the interposal layer to the packaging substrate. The IC package may include a lid and a thermal interface material (TIM) placed on top of the die. The lid may be shaped such that a protruding portion of the lid contacts the die directly through the TIM to improve heat dissipation.
    Type: Application
    Filed: January 20, 2009
    Publication date: July 22, 2010
    Inventors: Teik Tiong Toong, Loon Kwang Tan