Patents by Inventor Kar Weng Yan

Kar Weng Yan 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: 11955347
    Abstract: One or more electronic devices that are mounted on a substrate, including at least one cooling plate in contact with the one or more electronic devices, are encapsulated. The substrate is clamped between a first mold half and a second mold half which define a molding cavity for molding the one or more electronic devices. A cavity insert movably located in the first mold half is projected into the cavity in order to contact and apply a sealing pressure onto the at least one cooling plate. After introducing a molding compound into the cavity at a first fill pressure, the molding compound in the cavity is packed by applying a second fill pressure which is higher than the first fill pressure. During this time, the sealing pressure is maintained at values that are higher than the first fill pressure and the second fill pressure.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: April 9, 2024
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Teng Hock Kuah, Yi Lin, Ravindra Raghavendra, Kar Weng Yan, Angelito Barrozo Perez
  • Patent number: 11676937
    Abstract: An apparatus having a seal plate which includes rigid hard portions and one or more flexible soft portions located between the hard portions is used for bonding at least one semiconductor device onto a substrate that is supported on a platform. The seal plate is movable between a first position which is spaced from the substrate and a second position whereat a first side of the seal plate is configured to be in contact with the substrate. A diaphragm covers a second side of the seal plate opposite to the first side. A fluid pressure generator exerts a fluid pressure onto the diaphragm to actuate the diaphragm to compress the one or more soft portions to transmit a bonding force onto the at least one semiconductor device during bonding.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: June 13, 2023
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Jiapei Ding, Rolan Ocuaman Camba, Teng Hock Kuah, Jian Liao, Kar Weng Yan
  • Publication number: 20230178382
    Abstract: One or more electronic devices that are mounted on a substrate, including at least one cooling plate in contact with the one or more electronic devices, are encapsulated. The substrate is clamped between a first mold half and a second mold half which define a molding cavity for molding the one or more electronic devices. A cavity insert movably located in the first mold half is projected into the cavity in order to contact and apply a sealing pressure onto the at least one cooling plate. After introducing a molding compound into the cavity at a first fill pressure, the molding compound in the cavity is packed by applying a second fill pressure which is higher than the first fill pressure. During this time, the sealing pressure is maintained at values that are higher than the first fill pressure and the second fill pressure.
    Type: Application
    Filed: December 2, 2021
    Publication date: June 8, 2023
    Inventors: Teng Hock KUAH, Yi LIN, Ravindra RAGHAVENDRA, Kar Weng YAN, Angelito Barrozo PEREZ
  • Patent number: 11621181
    Abstract: A molding system for molding electronic components mounted on first and second sides of a substrate has a molding cavity onto which the substrate is locatable for molding. The molding cavity has a first section covering a molding portion of the first side of the substrate, and a second section covering a molding portion of the second side of the substrate. First and second pots have plungers for compressing molding compound placed therein. First and second runners connect the first and second pots to the first and second sections of the molding cavity for introducing the molding compound onto both sides of the substrate. In particular, the runners extend at least from an edge of the substrate along both sides of the substrate to the molding cavity.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: April 4, 2023
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Teng Hock Kuah, Yi Lin, Kar Weng Yan, Perez Angelito Barrozo
  • Publication number: 20220359459
    Abstract: An apparatus having a seal plate which includes rigid hard portions and one or more flexible soft portions located between the hard portions is used for bonding at least one semiconductor device onto a substrate that is supported on a platform. The seal plate is movable between a first position which is spaced from the substrate and a second position whereat a first side of the seal plate is configured to be in contact with the substrate. A diaphragm covers a second side of the seal plate opposite to the first side. A fluid pressure generator exerts a fluid pressure onto the diaphragm to actuate the diaphragm to compress the one or more soft portions to transmit a bonding force onto the at least one semiconductor device during bonding.
    Type: Application
    Filed: May 4, 2021
    Publication date: November 10, 2022
    Inventors: Jiapei DING, Rolan Ocuaman CAMBA, Teng Hock KUAH, Jian LIAO, Kar Weng YAN
  • Patent number: 11227779
    Abstract: The invention provides an apparatus, for processing a semiconductor device, comprising a first tool which comprises a pressure application component, a guide, and a spacer moveable in the guide. A gap is defined between the spacer and the guide and is operable to allow the spacer to tilt in relation to the guide. The apparatus also comprises a second tool for holding the semiconductor device, wherein the first and second tools are moveable relative to each other between an uncoupled state and a coupled state. The spacer comprises a first portion proximate the pressure application component, wherein in the coupled state, the pressure application component is operable to apply a force as a first pressure to the first portion.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: January 18, 2022
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Jiapei Ding, Kar Weng Yan, Teng Hock Kuah, Jian Liao, Keng Yew Song, Bin Yuan, Deivasigamani Mouleeswaran
  • Publication number: 20210351049
    Abstract: A molding system for molding electronic components mounted on first and second sides of a substrate has a molding cavity onto which the substrate is locatable for molding. The molding cavity has a first section covering a molding portion of the first side of the substrate, and a second section covering a molding portion of the second side of the substrate. First and second pots have plungers for compressing molding compound placed therein. First and second runners connect the first and second pots to the first and second sections of the molding cavity for introducing the molding compound onto both sides of the substrate. In particular, the runners extend at least from an edge of the substrate along both sides of the substrate to the molding cavity.
    Type: Application
    Filed: May 5, 2020
    Publication date: November 11, 2021
    Inventors: Teng Hock KUAH, Yi LIN, Kar Weng YAN, Perez ANGELITO BARROZO
  • Publication number: 20190080939
    Abstract: The invention provides an apparatus, for processing a semiconductor device, comprising a first tool which comprises a pressure application component, a guide, and a spacer moveable in the guide. A gap is defined between the spacer and the guide and is operable to allow the spacer to tilt in relation to the guide. The apparatus also comprises a second tool for holding the semiconductor device, wherein the first and second tools are moveable relative to each other between an uncoupled state and a coupled state. The spacer comprises a first portion proximate the pressure application component, wherein in the coupled state, the pressure application component is operable to apply a force as a first pressure to the first portion.
    Type: Application
    Filed: September 12, 2017
    Publication date: March 14, 2019
    Inventors: Jiapei DING, Kar Weng YAN, Teng Hock KUAH, Jian LIAO, Keng Yew SONG, Bin YUAN, Deivasigamani MOULEESWARAN
  • Publication number: 20140295013
    Abstract: A molding apparatus for an electronic device comprises a first mold chase, a second mold chase and a middle plate which is configured to be clamped together with the electronic device between the first mold chase and second mold chase during molding. A molding cavity formed in the middle plate is configured for receiving molding compound. A package pin is mounted on the middle plate to be movable with the middle plate, and a portion of the package pin is positioned to protrude into the molding cavity to form a mark in the molding compound when molding compound is molded around the said portion of the package pin.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Inventors: Shu Chuen HO, Si Liang LU, Swee Kwong MOK, Kar Weng YAN
  • Patent number: 8794952
    Abstract: A molding apparatus for an electronic device comprises a first mold chase, a second mold chase and a middle plate which is configured to be clamped together with the electronic device between the first mold chase and second mold chase during molding. A molding cavity formed in the middle plate is configured for receiving molding compound. A package pin is mounted on the middle plate to be movable with the middle plate, and a portion of the package pin is positioned to protrude into the molding cavity to form a mark in the molding compound when molding compound is molded around the said portion of the package pin.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: August 5, 2014
    Assignee: ASM Technology Singapore Pte Ltd
    Inventors: Shu Chuen Ho, Si Liang Lu, Swee Kwong Mok, Kar Weng Yan
  • Patent number: 8292613
    Abstract: A runner system for a molding apparatus comprises a plurality of runner networks, each runner network further comprising a mold supply pot having a first side and a second side opposite to the first side. A plurality of molding cavities are located on the first and second sides of the mold supply pot, and a plurality of runners are operative to channel molding compound from each mold supply pot to the plurality of molding cavities. At least one of the mold supply pots comprises a different number of runners located on the first side which are connected to the mold supply pot as compared to a number of runners located on the second side which are connected to the mold supply pot.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: October 23, 2012
    Assignee: ASM Technology Singapore Pte Ltd
    Inventors: Shu Chuen Ho, Si Liang Lu, Swee Kwong Mok, Kar Weng Yan
  • Publication number: 20110210477
    Abstract: A molding apparatus for an electronic device comprises a first mold chase, a second mold chase and a middle plate which is configured to be clamped together with the electronic device between the first mold chase and second mold chase during molding. A molding cavity formed in the middle plate is configured for receiving molding compound. A package pin is mounted on the middle plate to be movable with the middle plate, and a portion of the package pin is positioned to protrude into the molding cavity to form a mark in the molding compound when molding compound is molded around the said portion of the package pin.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 1, 2011
    Inventors: Shu Chuen HO, Si Liang LU, Swee Kwong MOK, Kar Weng YAN
  • Publication number: 20110212214
    Abstract: A runner system for a molding apparatus comprises a plurality of runner networks, each runner network further comprising a mold supply pot having a first side and a second side opposite to the first side. A plurality of molding cavities are located on the first and second sides of the mold supply pot, and a plurality of runners are operative to channel molding compound from each mold supply pot to the plurality of molding cavities. At least one of the mold supply pots comprises a different number of runners located on the first side which are connected to the mold supply pot as compared to a number of runners located on the second side which are connected to the mold supply pot.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 1, 2011
    Inventors: Shu Chuen HO, Si Liang LU, Swee Kwong MOK, Kar Weng YAN