Patents by Inventor Yi Ming Lau

Yi Ming Lau 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: 11828789
    Abstract: The present disclosure provides a test apparatus and a jumper thereof. The test apparatus includes a base board and the jumper. The base board has a first slot and a second slot. The first slot has a plurality of electrical contacts, and is configured to receive a plurality of pins of a device under test. The jumper is inserted into the second slot. The jumper includes a body and a plurality of first circuits. The first circuits are disposed on the body and electrically connect the electrical contacts of the first slot to a plurality of pins of a tester.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: November 28, 2023
    Assignee: STAR TECHNOLOGIES, INC.
    Inventors: Choon Leong Lou, Yi Ming Lau
  • Publication number: 20230123340
    Abstract: The present disclosure provides a test apparatus and a jumper thereof. The test apparatus includes a base board and the jumper. The base board has a first slot and a second slot. The first slot has a plurality of electrical contacts, and is configured to receive a plurality of pins of a device under test. The jumper is inserted into the second slot. The jumper includes a body and a plurality of first circuits. The first circuits are disposed on the body and electrically connect the electrical contacts of the first slot to a plurality of pins of a tester.
    Type: Application
    Filed: April 14, 2022
    Publication date: April 20, 2023
    Inventors: CHOON LEONG LOU, YI MING LAU
  • Patent number: 11307246
    Abstract: A probing apparatus includes a chuck supporting a DUT, and a platform with an opening above the chuck. The probing apparatus further includes first and second rails positioned at first and second sides of the platform, respectively. The probing apparatus further includes a probing device, the probing device includes a probing module slidably along the first and second rails, and a first motor system configured to automatically align a probe card with the DUT. The probing module includes a third rail with two ends slidably attached to the first and second rails, respectively, a probing stage slidably attached to the third rail, and the probe card attached to the probing stage. The first motor system includes a first motor configured to control movement of the probing stage along the third rail, and a second motor configured to control movement of the probing module along the first and second rails.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: April 19, 2022
    Assignee: Star Technologies, Inc.
    Inventors: Choon Leong Lou, Yi Ming Lau
  • Patent number: 11054465
    Abstract: A method of operating a probing apparatus is disclosed. The method includes providing a chuck configured to support a DUT, a probe card disposed above the DUT and having a probe, and an inspection module configured to determine positions of the DUT and the probe. The method further includes determining a first position of a DUT by an inspection module; moving a probe card to align a first position of a probe with the first position of the DUT; moving a chuck toward the probe; adjusting a temperature of the probe to a predetermined temperature by a temperature-controlling device; determining a second position of the probe by the inspection module after the adjustment of the temperature of the probe; moving the probe card to align the probe with the position of the DUT based on the determination of the second position of the probe; and probing the DUT.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: July 6, 2021
    Assignee: STAR TECHNOLOGIES, INC.
    Inventors: Choon Leong Lou, Yi Ming Lau
  • Publication number: 20210116496
    Abstract: A method of operating a probing apparatus is disclosed. The method includes providing a chuck configured to support a DUT, a probe card disposed above the DUT and having a probe, and an inspection module configured to determine positions of the DUT and the probe. The method further includes determining a first position of a DUT by an inspection module; moving a probe card to align a first position of a probe with the first position of the DUT; moving a chuck toward the probe; adjusting a temperature of the probe to a predetermined temperature by a temperature-controlling device; determining a second position of the probe by the inspection module after the adjustment of the temperature of the probe; moving the probe card to align the probe with the position of the DUT based on the determination of the second position of the probe; and probing the DUT.
    Type: Application
    Filed: October 21, 2019
    Publication date: April 22, 2021
    Applicant: STAR TECHNOLOGIES, INC.
    Inventors: CHOON LEONG LOU, YI MING LAU
  • Publication number: 20210088581
    Abstract: A probing apparatus includes a chuck supporting a DUT, and a platform with an opening above the chuck. The probing apparatus further includes first and second rails positioned at first and second sides of the platform, respectively. The probing apparatus further includes a probing device, the probing device includes a probing module slidably along the first and second rails, and a first motor system configured to automatically align a probe card with the DUT. The probing module includes a third rail with two ends slidably attached to the first and second rails, respectively, a probing stage slidably attached to the third rail, and the probe card attached to the probing stage. The first motor system includes a first motor configured to control movement of the probing stage along the third rail, and a second motor configured to control movement of the probing module along the first and second rails.
    Type: Application
    Filed: September 24, 2019
    Publication date: March 25, 2021
    Inventors: CHOON LEONG LOU, YI MING LAU
  • Patent number: 10890614
    Abstract: The present disclosure provides a method for controlling a junction temperature of a device under test, including applying a reverse bias to a reference diode adjacent to the device under test, obtaining a calibration current of the reference diode under the reverse bias, deriving the junction temperature of the device under test according to the reference diode, and adjusting an environment temperature when the junction temperature of the device under test is deviated from a predetermined value by a predetermined temperature range.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: January 12, 2021
    Assignee: STAR TECHNOLOGIES, INC.
    Inventors: Choon Leong Lou, Yi Ming Lau
  • Publication number: 20200326366
    Abstract: The present disclosure provides a method for controlling a junction temperature of a device under test, including applying a reverse bias to a reference diode adjacent to the device under test, obtaining a calibration current of the reference diode under the reverse bias, deriving the junction temperature of the device under test according to the reference diode, and adjusting an environment temperature when the junction temperature of the device under test is deviated from a predetermined value by a predetermined temperature range.
    Type: Application
    Filed: April 15, 2019
    Publication date: October 15, 2020
    Inventors: CHOON LEONG LOU, YI MING LAU
  • Patent number: 8389926
    Abstract: A sensing module for light-emitting devices includes a circuit board having at least one retaining region configured to retain an optical sensor, at least one circuit configured to electrically connect the optical sensor to an output interface at a front end of the circuit board, a substrate positioned on the circuit board and having at least one aperture exposing the retaining regions, and an optical device positioned on the aperture and configured to collect emitting lights from a light-emitting device to the retaining region through the aperture.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: March 5, 2013
    Assignee: Star Technologies Inc.
    Inventors: Choon Leong Lou, Li Min Wang, Yi Ming Lau, Ho Yeh Chen
  • Publication number: 20110063608
    Abstract: A sensing module for light-emitting devices includes a substrate having at least one first hole and at least one second hole connected to the first hole, an optical device positioned in the first hole and configured to collect emitting lights from the light-emitting device to the first hole, a light-guiding device positioned in the second hole, a reflector positioned in the first hole and configured to reflect the emitting lights from the light-emitting device to the light-guiding device, and an optical coupler positioned at a front end of the substrate and coupled with the light-guiding device.
    Type: Application
    Filed: August 16, 2010
    Publication date: March 17, 2011
    Applicant: STAR TECHNOLOGIES INC.
    Inventors: Choon Leong Lou, Li Min Wang, Yi Ming Lau, Ho Yeh Chen
  • Publication number: 20110062317
    Abstract: A sensing module for light-emitting devices includes a circuit board having at least one retaining region configured to retain a optical sensor, at least one circuit configured to electrically connect the optical sensor to an output interface at a front end of the circuit board, a substrate positioned on the circuit board and having at least one aperture exposing the retaining regions, and an optical device positioned on the aperture and configured to collect emitting lights from a light-emitting device to the retaining region through the aperture.
    Type: Application
    Filed: August 16, 2010
    Publication date: March 17, 2011
    Applicant: STAR TECHNOLOGIES INC.
    Inventors: Choon Leong Lou, Li Min Wang, Yi Ming Lau, Ho Yeh Chen
  • Patent number: 7675307
    Abstract: A heating apparatus for semiconductor devices comprises an oven including a front wall having a plurality of front openings and a back wall having a plurality of back openings each with isolating self-closing doors, a carrier module configured to load semiconductor devices into the oven through the front opening in a removable manner, a temperature-controlling module configured to control the temperature of the oven, and a test module positioned at a backside of the oven and configured to generate, receive or switch electrical test signals for the semiconductor devices in the oven.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: March 9, 2010
    Assignee: Star Technologies Inc.
    Inventors: Choon Leong Lou, Li Min Wang, Yi Ming Lau, Ho Yeh Chen
  • Publication number: 20090237102
    Abstract: A heating apparatus for semiconductor devices comprises an oven including a front wall having a plurality of front openings and a back wall having a plurality of back openings each with isolating self-closing doors, a carrier module configured to load semiconductor devices into the oven through the front opening in a removable manner, a temperature-controlling module configured to control the temperature of the oven, and a test module positioned at a backside of the oven and configured to generate, receive or switch electrical test signals for the semiconductor devices in the oven.
    Type: Application
    Filed: March 18, 2008
    Publication date: September 24, 2009
    Applicant: Star Technologies Inc.
    Inventors: Choon Leong Lou, Li Min Wang, Yi Ming Lau, Ho Yeh Chen