Patents by Inventor Hk Looi

Hk Looi 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: 9671671
    Abstract: An optical assembly may include a substrate, a housing carried by the substrate and having at least one adhesive-receiving recess in an upper surface thereof, and a lens carried by the housing. The optical assembly may also include a liquid crystal focus cell adjacent the lens and including cell layers and pairs of electrically conductive contacts associated therewith. The optical assembly may also include at least one electrically conductive member within the at least one adhesive-receiving recess and coupling together each pair of the electrically conductive contacts, and an adhesive body in the at least one adhesive-receiving recess covering the at least one electrically conductive member.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: June 6, 2017
    Assignee: STMICROELECTRONICS PTE LTD
    Inventors: Wee Chin Judy Lim, David Gani, Hk Looi, Bs Aw, Cheng-hai Cheh
  • Patent number: 9244334
    Abstract: Described herein are various embodiments of contacts that include different portions angled with respect to one another and methods of manufacturing devices that include such contacts. In some embodiments, a module may include a first portion of a contact that is disposed within a housing and a second portion that is disposed outside of the housing, with the second portion angled with respect to the first portion. Manufacturing such devices may include depositing a conductive material to electrically connect the contact to a contact pad of a substrate. In some embodiments, a deposition process for depositing the conductive material may have a minimum dimension, which defines a minimum dimension of a conductive material once deposited. In some such embodiments, a distance between a terminal end of the contact pin and the contact pad may be greater than the minimum dimension of the deposition process.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: January 26, 2016
    Assignee: STMicroelectronics Pte Ltd
    Inventors: Hk Looi, Wee Chin Judy Lim, Cheng-Hai Cheh, Bs Aw, David Gani, Tin-Tun Maung, Choon Lee Lai
  • Patent number: 9105766
    Abstract: An optical electronic package includes transmitting chip and a receiving chip fixed to a wafer. A transparent encapsulation structure is formed by a transparent plate and a transparent encapsulation block that are formed over the transmitter chip and at least a portion of the receiver chip, with the transparent encapsulation block embedding the transmitter chip. An opaque encapsulation block extends over the transparent plate and includes an opening that reveals a front area of the transparent plate. The front area is situated above an optical transmitter of the transmitting chip and is offset laterally relative to an optical sensor of the receiving chip.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: August 11, 2015
    Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics PTE LTD
    Inventors: Romain Coffy, Eric Saugier, Hk Looi, Norbert Chevrier
  • Publication number: 20150138420
    Abstract: Electronics modules and methods of making electronics modules are provided. An electronics module includes a substrate having an electronic circuit mounted thereon, a lens mount affixed to the substrate, the lens mount having a lens assembly mounted therein, and a liquid crystal cell affixed to the lens mount over the lens assembly, the liquid crystal cell having electrical terminals, wherein the lens mount includes adhesive containment pockets that are filled with a conductive adhesive so as to contact the electrical terminals of the liquid crystal cell, wherein the adhesive containment pockets include contacts that are electrically connected to the substrate. In some embodiments, the electronics module is a camera module.
    Type: Application
    Filed: November 21, 2013
    Publication date: May 21, 2015
    Applicant: STMicroelectronics Pte Ltd.
    Inventors: Hk Looi, David Gani, Wee Chin Judy Lim, Bs Aw, Cheng-Hai Cheh
  • Patent number: 9025339
    Abstract: On a circuit substrate on which an adhesive is used to couple electronic or structural components to the substrate, an adhesive dam is positioned to prevent the adhesive from interfering with the operation of the circuit. A contact pad can be provided at a selected location and with a selected shape, and solder deposited on the pad, then reflowed to form the dam. The dam can be a structure soldered to a contact pad, or the dam can be supported at its ends by another structure of the device, so that, at the location where it functions to contain the adhesive, it is not attached to the substrate.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: May 5, 2015
    Assignee: STMicroelectronics Pte Ltd.
    Inventors: Jing-En Luan, Hk Looi
  • Publication number: 20150103297
    Abstract: An optical assembly may include a substrate, a housing carried by the substrate and having at least one adhesive-receiving recess in an upper surface thereof, and a lens carried by the housing. The optical assembly may also include a liquid crystal focus cell adjacent the lens and including cell layers and pairs of electrically conductive contacts associated therewith. The optical assembly may also include at least one electrically conductive member within the at least one adhesive-receiving recess and coupling together each pair of the electrically conductive contacts, and an adhesive body in the at least one adhesive-receiving recess covering the at least one electrically conductive member.
    Type: Application
    Filed: October 10, 2013
    Publication date: April 16, 2015
    Applicant: STMICROELECTRONICS PTE. LTD
    Inventors: WeeChinJudy LIM, David Gani, Hk Looi, Bs Aw, Cheng-hai Cheh
  • Patent number: 9003644
    Abstract: A PNP apparatus may include a robotic arm, and a PNP tool head carried by the robotic arm. The PNP tool head may include a body configured to apply bonding pressure to a first area of an electronic device, and a pick-up tip movable between an extended position and a retracted position relative to the body as the pick-up tip rests against a second area of the electronic device. The pick-up tip may define a vacuum passageway therethrough to couple a vacuum source to the second area of the electronic device.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: April 14, 2015
    Assignee: STMicroelectronics Pte Ltd
    Inventors: Hk Looi, Cheng-hai Cheh, HaiKin Toh
  • Publication number: 20140293120
    Abstract: Described herein are various embodiments of contacts that include different portions angled with respect to one another and methods of manufacturing devices that include such contacts. In some embodiments, a module may include a first portion of a contact that is disposed within a housing and a second portion that is disposed outside of the housing, with the second portion angled with respect to the first portion. Manufacturing such devices may include depositing a conductive material to electrically connect the contact to a contact pad of a substrate. In some embodiments, a deposition process for depositing the conductive material may have a minimum dimension, which defines a minimum dimension of a conductive material once deposited. In some such embodiments, a distance between a terminal end of the contact pin and the contact pad may be greater than the minimum dimension of the deposition process.
    Type: Application
    Filed: March 29, 2013
    Publication date: October 2, 2014
    Applicant: STMicroelectronics Pte Ltd.
    Inventors: Hk Looi, Wee Chin Judy Lim, Cheng-Hai Cheh, Bs Aw, David Gani, Tin-Tun Maung, Choon Lee Lai
  • Patent number: 8779443
    Abstract: A sensor package is provided having a light sensitive component and a light emitting component attached to a same substrate. Light from the light emitting component is emitted from the package through a first opening and reflected back into the package to the light sensitive component through a second opening in the package. A glass attachment is placed between the light emitting component and the light sensitive component. A portion of the glass is removed and filled with an opaque substance to prevent light travelling between the light emitting component and the light sensitive component in the package.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: July 15, 2014
    Assignee: STMicroelectronics Pte Ltd.
    Inventors: Wing Shenq Wong, Hk Looi
  • Publication number: 20140105717
    Abstract: A PNP apparatus may include a robotic arm, and a PNP tool head carried by the robotic arm. The PNP tool head may include a body configured to apply bonding pressure to a first area of an electronic device, and a pick-up tip movable between an extended position and a retracted position relative to the body as the pick-up tip rests against a second area of the electronic device. The pick-up tip may define a vacuum passageway therethrough to couple a vacuum source to the second area of the electronic device.
    Type: Application
    Filed: October 15, 2012
    Publication date: April 17, 2014
    Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD (SINGAPORE)
    Inventors: Hk LOOI, Cheng-hai CHEH, HaiKin TOH
  • Publication number: 20140084308
    Abstract: A sensor package is provided having a light sensitive component and a light emitting component attached to a same substrate. Light from the light emitting component is emitted from the package through a first opening and reflected back into the package to the light sensitive component through a second opening in the package. A glass attachment is placed between the light emitting component and the light sensitive component. A portion of the glass is removed and filled with an opaque substance to prevent light travelling between the light emitting component and the light sensitive component in the package.
    Type: Application
    Filed: September 27, 2012
    Publication date: March 27, 2014
    Applicant: STMicroelectronics Pte Ltd.
    Inventors: Wing Shenq Wong, Hk Looi
  • Publication number: 20130248887
    Abstract: An optical electronic package includes transmitting chip and a receiving chip fixed to a wafer. A transparent encapsulation structure is formed by a transparent plate and a transparent encapsulation block that are formed over the transmitter chip and at least a portion of the receiver chip, with the transparent encapsulation block embedding the transmitter chip. An opaque encapsulation block extends over the transparent plate and includes an opening that reveals a front area of the transparent plate. The front area is situated above an optical transmitter of the transmitting chip and is offset laterally relative to an optical sensor of the receiving chip.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 26, 2013
    Applicants: STMICROELECTRONICS PTE LTD, STMICROELECTRONICS (GRENOBLE 2) SAS
    Inventors: Romain Coffy, Eric Saugier, Hk Looi, Norbert Chevrier
  • Patent number: 8492181
    Abstract: A method of forming an embedded wafer level optical package includes attaching a sensor die, PCB bars and an LED on adhesive tape laminated on a carrier, attaching a dam between two light sensitive sensors of the sensor die, encapsulating the sensor die, the PCB bars, the LED, and the dam in an encapsulation layer, debonding the carrier, grinding a top surface of the encapsulation layer, forming vias through the encapsulation layer to the sensor die and the LED, filling the vias with conductive material, metalizing the top surface of the encapsulation layer, dielectric coating of the top surface of the encapsulation layer, dielectric coating of a bottom surface of the encapsulation layer, patterning the dielectric coating of the bottom surface of the encapsulation layer, and plating the patterned dielectric coating of the bottom surface of the encapsulation layer.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: July 23, 2013
    Assignee: STMicroelectronics Pte Ltd.
    Inventors: Anandan Ramasamy, KahWee Gan, Hk Looi, David Gani
  • Publication number: 20130170164
    Abstract: On a circuit substrate on which an adhesive is used to couple electronic or structural components to the substrate, an adhesive dam is positioned to prevent the adhesive from interfering with the operation of the circuit. A contact pad can be provided at a selected location and with a selected shape, and solder deposited on the pad, then reflowed to form the dam. The dam can be a structure soldered to a contact pad, or the dam can be supported at its ends by another structure of the device, so that, at the location where it functions to contain the adhesive, it is not attached to the substrate.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 4, 2013
    Applicant: STMICROELECTRONICS PTE LTD.
    Inventors: Jing-En Luan, Hk Looi
  • Publication number: 20130164867
    Abstract: A method of forming an embedded wafer level optical package includes attaching a sensor die, PCB bars and an LED on adhesive tape laminated on a carrier, attaching a dam between two light sensitive sensors of the sensor die, encapsulating the sensor die, the PCB bars, the LED, and the dam in an encapsulation layer, debonding the carrier, grinding a top surface of the encapsulation layer, forming vias through the encapsulation layer to the sensor die and the LED, filling the vias with conductive material, metalizing the top surface of the encapsulation layer, dielectric coating of the top surface of the encapsulation layer, dielectric coating of a bottom surface of the encapsulation layer, patterning the dielectric coating of the bottom surface of the encapsulation layer, and plating the patterned dielectric coating of the bottom surface of the encapsulation layer.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 27, 2013
    Applicant: STMicroelectronics Pte Ltd.
    Inventors: Anandan Ramasamy, KahWee Gan, Hk Looi, David Gani
  • Publication number: 20120171372
    Abstract: In automated gluing systems for semiconductor device manufacture, an automatic shutter system is provided for use with an adhesive dispenser that is configured to deposit adhesive for joining elements during final assembly processes. A shutter is configured to interpose itself between a needle tip of the dispenser and a working surface, on which devices in process are positioned, while the dispenser is in a ready position and not actually delivering adhesive, and to withdraw from the interposed position as, or immediately before the needle tip descends to a dispensing position to deposit adhesive on a device. In this way, drops of adhesive that fall from the needle tip while in the ready position are captured by the shutter and prevented from falling onto a device in process in an unintended location of the device.
    Type: Application
    Filed: December 30, 2010
    Publication date: July 5, 2012
    Applicant: STMICROELECTRONICS PTE LTD.
    Inventors: Hk Looi, Cheng-hai Cheh