Patents by Inventor Kam Lam

Kam Lam 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: 11136202
    Abstract: Electronic components are transferred from a source surface for supplying electronic components to a destination surface for receiving electronic components by an ejector device that is locatable at an ejection position for pushing an electronic component mounted on the source surface towards the destination surface. A support device that is locatable at a receiving position supports the electronic component that is pushed onto the destination surface. Further, a pre-transfer imaging device inspects the electronic component before it is transferred from the source surface and a post-transfer imaging device inspects the electronic component after it has been transferred onto the destination surface, wherein the pre-transfer and post-transfer imaging devices are located on opposite sides of the source and destination surfaces.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: October 5, 2021
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Kui Kam Lam, Kai Siu Lam, Yen Hsi Tang, Hung Kit Chan, Ka Yee Mak
  • Publication number: 20210206585
    Abstract: Electronic components are transferred from a source surface for supplying electronic components to a destination surface for receiving electronic components by an ejector device that is locatable at an ejection position for pushing an electronic component mounted on the source surface towards the destination surface. A support device that is locatable at a receiving position supports the electronic component that is pushed onto the destination surface. Further, a pre-transfer imaging device inspects the electronic component before it is transferred from the source surface and a post-transfer imaging device inspects the electronic component after it has been transferred onto the destination surface, wherein the pre-transfer and post-transfer imaging devices are located on opposite sides of the source and destination surfaces.
    Type: Application
    Filed: January 6, 2020
    Publication date: July 8, 2021
    Inventors: Kui Kam LAM, Kai Siu LAM, Yen Hsi TANG, Hung Kit CHAN, Ka Yee MAK
  • Patent number: 11056377
    Abstract: A semiconductor pick and place apparatus comprises: a pick arm having a main body, and a conduit incorporated in the main body for permitting fluid flow through the main body via the conduit, the conduit further defining a holding orifice which is operative in use to secure a semiconductor die, the conduit being configured to convey light received from one side of the pick arm through the holding orifice and an alignment window located on the main body to an opposite side of the pick arm.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: July 6, 2021
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Kui Kam Lam, Kai Siu Lam, Cheuk Ki Tam, Nim Tak Wong, Ka Yee Mak
  • Publication number: 20210005498
    Abstract: A semiconductor pick and place apparatus comprises: a pick arm having a main body, and a conduit incorporated in the main body for permitting fluid flow through the main body via the conduit, the conduit further defining a holding orifice which is operative in use to secure a semiconductor die, the conduit being configured to convey light received from one side of the pick arm through the holding orifice and an alignment window located on the main body to an opposite side of the pick arm.
    Type: Application
    Filed: July 2, 2019
    Publication date: January 7, 2021
    Inventors: Kui Kam LAM, Kai Siu LAM, Cheuk Ki TAM, Nim Tak WONG, Ka Yee MAK
  • Patent number: 10882298
    Abstract: A bonding apparatus comprises a movable bond head collet, a reference marker configured to move with the bond head collet, a flip head collet, first and second imaging devices and an adjusting mechanism. In use, the first imaging device captures one or more images of the reference marker and the flip head collet, and the second imaging device captures one or more images of the reference marker and the bond head collet. The adjusting mechanism aligns a position of the bond head collet with a position of the flip head collet based on an offset that is determined from the images of the flip head collet, bond head collet and reference marker. The flip head collet retrieves an electrical component and transfers the electrical component to the bond head collet at the alignment position.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: January 5, 2021
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Shui Cheung Woo, Liang Hong Tang, Wan Yin Yau, Wai Yuen Cheung, Kui Kam Lam
  • Patent number: 10756465
    Abstract: The first terminals have contact arm portions extending in a rectilinear manner in the direction of connector plugging and unplugging; the second terminals have convex contact point portions contactable with an intermediate portion of the contact arm portions in the same direction. When the stub portions of the contact arm portions are divided into a free end side range and a proximal end side range such that the center point of said stub portions in the direction of plugging and unplugging forms a boundary, in the arranged state of the first terminals, impedance at arbitrary locations in the direction of plugging and unplugging within the free end side range is larger than impedance at arbitrary locations in the plugging direction within the proximal end side range.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: August 25, 2020
    Assignee: HIROSE ELECTRIC CO., LTD.
    Inventors: Nobuhiro Tamai, Shota Yamada, Clement Kam Lam Luk, Jeremy Buan, Ching-Chao Huang, Tadashi Ohshida
  • Patent number: 10748128
    Abstract: A point-of-sale system is provided that permits users to self-manage prepaid debit cards. Such a system may be capable of identifying and managing a number of different prepaid debit cards provided by different card issuers. The system may permit, for example, a user to purchase, activate, load funds, or perform other management operations with such cards. The system may also enforce restrictions associated with particular card types, and follow process flows for activating and performing other operations of such cards. The system may also be easily extendible to other types of prepaid cards through established card network relationships.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: August 18, 2020
    Assignee: Walmart Apollo, LLC
    Inventors: Kam Lam, Anthony Hylton, Mark Matthews
  • Publication number: 20200083622
    Abstract: The first terminals have contact arm portions extending in a rectilinear manner in the direction of connector plugging and unplugging; the second terminals have convex contact point portions contactable with an intermediate portion of the contact arm portions in the same direction. When the stub portions of the contact arm portions are divided into a free end side range and a proximal end side range such that the center point of said stub portions in the direction of plugging and unplugging forms a boundary, in the arranged state of the first terminals, impedance at arbitrary locations in the direction of plugging and unplugging within the free end side range is larger than impedance at arbitrary locations in the plugging direction within the proximal end side range.
    Type: Application
    Filed: September 6, 2019
    Publication date: March 12, 2020
    Inventors: Nobuhiro TAMAI, Shota YAMADA, Clement Kam Lam LUK, Jeremy BUAN, Ching-Chao HUANG, Sunao OSHIDA
  • Patent number: 10399170
    Abstract: A die attachment apparatus for attaching a semiconductor die onto a substrate having a metallic surface comprises a material dispensing station for dispensing a bonding material onto the substrate and a die attachment station for placing the semiconductor die onto the bonding material which has been dispensed onto the substrate. An activating gas generator positioned before the die attachment station introduces activated forming gas onto the substrate in order to reduce oxides on the substrate.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: September 3, 2019
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Kui Kam Lam, Pingliang Tu, Zhao Yang, Jun Qi, Chun Hung Samuel Ip
  • Patent number: 10311597
    Abstract: The invention provides an apparatus for determining a bonding position of a die. The apparatus includes a bond head for picking up and bonding the die. The apparatus further includes a plurality of cameras positioned and configured for capturing at least a first image including a first side surface of the die, a second image including a second side surface of the die and a third image including the first and second side surfaces of the die. Further, the invention provides a method of determining a bonding position of a die. The method captures at least a first image including a first side surface of the die, a second image including a second side surface of the die and a third image including the first and second side surfaces of the die. The method further determines a bonding position of the die based on the captured images.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: June 4, 2019
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Kui Kam Lam, Shun Ming Fung, Chi Keung Leung, Wing Kin Lam, Yuet Cheung
  • Publication number: 20180350097
    Abstract: The invention provides an apparatus for determining a bonding position of a die. The apparatus includes a bond head for picking up and bonding the die. The apparatus further includes a plurality of cameras positioned and configured for capturing at least a first image including a first side surface of the die, a second image including a second side surface of the die and a third image including the first and second side surfaces of the die. Further, the invention provides a method of determining a bonding position of a die. The method captures at least a first image including a first side surface of the die, a second image including a second side surface of the die and a third image including the first and second side surfaces of the die. The method further determines a bonding position of the die based on the captured images.
    Type: Application
    Filed: June 2, 2017
    Publication date: December 6, 2018
    Inventors: Kui Kam LAM, Shun Ming FUNG, Chi Keung LEUNG, Wing Kin LAM, Yuet CHEUNG
  • Patent number: 10014203
    Abstract: A semiconductor die pick and place device comprising a handing mechanism comprising a pick arm movable between a placement location and a pick-up location. A reference feature is located on the pick arm, and a light reflecting module is carried by the pick arm. The light reflecting module is operable to reflect an image of the reference feature to an image capturing module such that the reference feature appears to the light reflecting module to be in focus at a virtual position that is equivalent to a position at the pick-up location and/or the placement location.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: July 3, 2018
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Kui Kam Lam, Kai Siu Lam, Zhuanyun Zhang, Nim Tak Wong, Chung Yan Lau
  • Publication number: 20180181942
    Abstract: A point-of-sale system is provided that permits users to self-manage prepaid debit cards. Such a system may be capable of identifying and managing a number of different prepaid debit cards provided by different card issuers. The system may permit, for example, a user to purchase, activate, load funds, or perform other management operations with such cards. The system may also enforce restrictions associated with particular card types, and follow process flows for activating and performing other operations of such cards. The system may also be easily extendible to other types of prepaid cards through established card network relationships.
    Type: Application
    Filed: February 22, 2018
    Publication date: June 28, 2018
    Inventors: Kam Lam, Anthony Hylton, Mark Matthews
  • Patent number: 9989587
    Abstract: A die tester comprising a testing table on which a plurality of dice arranged in an array are mountable, and a first probe and a second probe that are adjustable to a fixed position with a fixed separation distance between the first probe and the second probe. The fixed position corresponds to predetermined test points on the plurality of dice, and the testing table and the first and second probes are movable relative to each other so as to position test points of a first die of the plurality of dice to the first probe and the second probe for testing the first die. The die tester further comprises movable third and fourth probes that are movable relative to each other and positionable to test points on a second die of the plurality of dice for testing the second die.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: June 5, 2018
    Assignee: ASM TECHNOLOGY SINGAPORE PTE LTD
    Inventors: Yam Mo Wong, Kui Kam Lam, Kai Siu Lam, Ka Wai Chan
  • Publication number: 20180126718
    Abstract: A bonding apparatus comprises a movable bond head collet, a reference marker configured to move with the bond head collet, a flip head collet, first and second imaging devices and an adjusting mechanism. In use, the first imaging device captures one or more images of the reference marker and the flip head collet, and the second imaging device captures one or more images of the reference marker and the bond head collet. The adjusting mechanism aligns a position of the bond head collet with a position of the flip head collet based on an offset that is determined from the images of the flip head collet, bond head collet and reference marker. The flip head collet retrieves an electrical component and transfers the electrical component to the bond head collet at the alignment position.
    Type: Application
    Filed: November 7, 2016
    Publication date: May 10, 2018
    Inventors: Shui Cheung WOO, Liang Hong TANG, Wan Yin YAU, Wai Yuen CHEUNG, Kui Kam LAM
  • Patent number: 9928497
    Abstract: A point-of-sale system is provided that permits users to self-manage prepaid debit cards. Such a system may be capable of identifying and managing a number of different prepaid debit cards provided by different card issuers. The system may permit, for example, a user to purchase, activate, load funds, or perform other management operations with such cards. The system may also enforce restrictions associated with particular card types, and follow process flows for activating and performing other operations of such cards. The system may also be easily extendible to other types of prepaid cards through established card network relationships.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: March 27, 2018
    Assignee: Wal-Mart Stores, Inc.
    Inventors: Kam Lam, Anthony Hylton, Mark Matthews
  • Publication number: 20170236734
    Abstract: A semiconductor die pick and place device comprising a handing mechanism comprising a pick arm movable between a placement location and a pick-up location. A reference feature is located on the pick arm, and a light reflecting module is carried by the pick arm. The light reflecting module is operable to reflect an image of the reference feature to an image capturing module such that the reference feature appears to the light reflecting module to be in focus at a virtual position that is equivalent to a position at the pick-up location and/or the placement location.
    Type: Application
    Filed: February 12, 2016
    Publication date: August 17, 2017
    Inventors: Kui Kam LAM, Kai Siu LAM, Zhuanyun ZHANG, Nim Tak WONG, Chung Yan LAU
  • Publication number: 20160334464
    Abstract: A die tester comprising a testing table on which a plurality of dice arranged in an array are mountable, and a first probe and a second probe that are adjustable to a fixed position with a fixed separation distance between the first probe and the second probe. The fixed position corresponds to predetermined test points on the plurality of dice, and the testing table and the first and second probes are movable relative to each other so as to position test points of a first die of the plurality of dice to the first probe and the second probe for testing the first die. The die tester further comprises movable third and fourth probes that are movable relative to each other and positionable to test points on a second die of the plurality of dice for testing the second die.
    Type: Application
    Filed: May 11, 2015
    Publication date: November 17, 2016
    Inventors: Yam Mo WONG, Kui Kam LAM, Kai Siu LAM, Ka Wai CHAN
  • Publication number: 20150072473
    Abstract: A die attachment apparatus for attaching a semiconductor die onto a substrate having a metallic surface comprises a material dispensing station for dispensing a bonding material onto the substrate and a die attachment station for placing the semiconductor die onto the bonding material which has been dispensed onto the substrate. An activating gas generator positioned before the die attachment station introduces activated forming gas onto the substrate in order to reduce oxides on the substrate.
    Type: Application
    Filed: December 27, 2013
    Publication date: March 12, 2015
    Inventors: Kui Kam LAM, Pingliang TU, Zhao YANG, Jun QI, Chun Hung Samuel IP
  • Patent number: 8956892
    Abstract: Disclosed is a method of fabricating a light-emitting diode package, which comprises a light-emitting chip operative to emit light of a first wavelength range. The method comprises the steps of: dispensing a photoluminescent mixture on the light-emitting chip, the photoluminescent mixture being capable of absorbing a portion of light of the first wavelength range emitted from the light-emitting chip to re-emit light of a second wavelength range; partially curing the photoluminescent mixture by heating the photoluminescent mixture to a pre-curing temperature and then cooling the photoluminescent mixture to below the pre-curing temperature; and fully curing the photoluminescent mixture to harden the photoluminescent mixture. An apparatus for fabricating a light-emitting diode package is also disclosed.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: February 17, 2015
    Assignee: ASM Technology Singapore Pte. Ltd.
    Inventors: Kui Kam Lam, Ka Yee Mak, Yiu Yan Wong, Ming Li