Patents Assigned to ASMPT SINGAPORE PTE. LTD.
  • 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: 11842978
    Abstract: A wire bonding system has a bonding tool and a wire guide for guiding a bonding wire to a tip of the bonding tool for conducting wire bonding operations. A wire biasing tool is located adjacent to the wire guide, and a rotary actuator is operatively connected to the wire biasing tool by a linkage mechanism. The rotary actuator is operable to move the wire biasing tool along a predetermined travel path to apply a biasing force onto a length of bonding wire extending from the tip of the bonding tool.
    Type: Grant
    Filed: July 15, 2022
    Date of Patent: December 12, 2023
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Man Kit Mui, Kwun Man Ng
  • Patent number: 11798911
    Abstract: A force sensor for determining a bonding force during wire bonding operations includes: a piezoelectric sensing element mounted in an ultrasonic transducer of an ultrasonic wire bonding device, the piezoelectric sensing element including a first portion and a second portion, and first and second opposing surfaces, wherein the first surface of the first portion has a positive electrode and the second surface of the first portion has a negative electrode respectively, and the first surface of the second portion has a negative electrode and the second surface of the second portion has a positive electrode respectively.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: October 24, 2023
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Hing Leung Li, Hoi Ting Lam, Tsz Kit Yu, Ly Tat Peh
  • Patent number: 11776930
    Abstract: A die bond head apparatus has a die bond head body coupled to a die bond head motion table, a die holder motion table mounted on the die bond head body and a die holder which is operative in use to secure a semiconductor die to a substrate. The die holder is positionable by the die holder motion table independently of the die bond head motion table.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: October 3, 2023
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Chung Sheung Yung, Pak Kin Leung
  • Patent number: 11764098
    Abstract: When picking a die from an adhesive tape, a collet of a pick arm is positioned at a distance over the die, the die being mounted on a first surface of the adhesive tape. A flow of air is then generated onto a second surface of the adhesive surface opposite to the first surface for blowing the adhesive tape to displace the die towards a die-holding surface of the collet. Thereafter, the die is retained on the die-holding surface of the collet while the adhesive tape separates from the die.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: September 19, 2023
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Ngai Tat Man, Yiu Ming Cheung, Jun Qi, Chi Yung Lee
  • Patent number: 11695915
    Abstract: An alignment apparatus for aligning a lens module with respect to an image sensor includes a holographic film including a test chart pattern from which a virtual image of the test chart pattern may be generated, and a light source for illuminating the holographic film. An image sensor holder is provided for mounting the image sensor and a lens module holder is configured and positioned for mounting the lens module between the holographic film and the image sensor such that the virtual image of the test chart pattern is viewable by the image sensor through the lens module. The virtual image thus viewable by the image sensor through the lens module is located at a virtual distance from the image sensor that is different from a physical position of the holographic film for aligning the lens module with respect to the image sensor.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: July 4, 2023
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Wui Fung Sze, Jiangwen Deng, Hei Lam Chang
  • 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
  • Patent number: 11622485
    Abstract: A pick arm for a pick and place apparatus for electronic devices has a main body having a proximal end whereat the pick arm is mountable onto a pick arm support, and a distal end at which a collet is mounted for holding an electronic device. A first rigid body is located adjacent to the proximal end of the pick arm and a second rigid body is located adjacent to the distal end of the pick arm. The first and second flexures connect the first rigid body to the second rigid body. Moreover, the first flexure is spaced from the second flexure, and the first and second flexures have opposing faces that are arranged substantially parallel to each other. An actuator is operative to apply a biasing force onto the second rigid body so as to bend the first and second flexures relative to the first rigid body for biasing the collet of the pick arm to move.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: April 4, 2023
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Chak Tong Sze, Pei Wei Tsai, Wing Sze Chan, Wai Hing Yung
  • 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
  • Patent number: 11618172
    Abstract: An ejector unit for detaching an electronic element from an adhesive carrier has an ejector housing with a supporting deck, a light source disposed therein and an ejector lens. The ejector lens has a protruding face. The ejector lens is disposed and oriented with an optical axis extending between the light source and an opening in the supporting deck, and the protruding face of the lens directed towards the opening. The ejector lens is movable relative to the supporting deck along the optical axis to project the protruding face through the opening against the electronic element for lifting the electronic element.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: April 4, 2023
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Chi Keung Leung, Hua Zhang, Qing Long Zhang
  • Patent number: 11618231
    Abstract: A semiconductor device is located between a first die-set part and a second die-set part of a press, and the first and second die-set parts are moved relative to each other for punching and shaping the semiconductor device therebetween. At least one parameter is monitored with at least one sensor attached to the first die-set part and/or the second die-set part at different positions of the first die-set part when it is moving relative to the second die-set part. Variations of the at least one parameter at different relative positions of the first and second die-set parts are compared, and a failure is determined to have occurred when the present variation of the parameter is different from its expected variation during normal operation of the press when there is no failure.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: April 4, 2023
    Assignee: ASMPT SINGAPORE PTE, LTD.
    Inventors: Kwok Pun Law, Hong Yeung Li, Cho Wai Leung
  • Patent number: 11600516
    Abstract: A die ejection apparatus operable to eject a die from a support has at least two ejector components configured to lift a die located on the support. The ejector components are moveable to a position in which a lifting force is exertable by the ejector components on the support, so as to lift a die located on the support. Movement of the die ejector components is initiated towards the support, and a moment when each of the die ejector components reaches the position is determined. A height offset of each die ejector component relative to a height of another die ejector component is determined upon reaching the said position, and relative heights of the die ejector components are adjusted in dependence upon the evaluated height offset.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: March 7, 2023
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Chi Wah Cheng, Wan Yin Yau, Kwok Pun Law
  • Patent number: 11592477
    Abstract: A test handler comprising a primary rotary turret comprising pick heads for transporting electronic components, and a secondary rotary turret arranged and configured to receive electronic components directly or indirectly from the primary rotary turret, the secondary rotary turret including multiple separate test sectors having component carriers for carrying the electronic components received from the primary rotary turret, wherein the multiple test sectors are rotatably movable relative to one another. The test handler also comprises at least one testing device positioned along a periphery of the secondary rotary turret, wherein the component carriers of the respective test sectors are operative to convey the electronic components to a position of the at least one testing device for testing.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: February 28, 2023
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Chi Wah Cheng, Kai Fung Lau, Yu Sze Cheung
  • Patent number: 11559823
    Abstract: A device for measuring and regulating a volume of a fluid dispensed by a time-pressure dispenser, the device comprising: an adaptor for releasably coupling a syringe to the device, the syringe containing a fluid to be dispensed; a probe configured to be coupled with a piston of the syringe, the piston being operative to apply a pressure for ejecting the fluid from the syringe upon the application of an air pressure to the piston; and a displacement detector operative in use to determine a position of the probe so as to determine a position of the piston when dispensing the fluid, whereby to regulate the volume of the fluid dispensed from the syringe.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: January 24, 2023
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Kuok Hang Mak, Tsz Kit Yu, Chun Ting Lau, Wai Keung Tam, Ka Shing Kwan
  • Patent number: 11552031
    Abstract: A bonding apparatus includes a bond head structure, an optical unit and an actuator unit. The bond head structure includes a bond head collet, a connecting unit to which the bond head collet is attached and a look-through passage extending through the bond head collet and the connecting unit along a central axis of the bond head structure. In use, the bond head collet holds an electrical component to be bonded to a bonding area of a base member and the optical unit is positioned relative to the bond head structure to view and inspect the electrical component through the look-through passage of the bond head structure. The actuator unit moves the connecting unit of the bond head structure based on the inspection of the electrical component by the optical unit, to align the electrical component with the bonding area of the base member.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: January 10, 2023
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Ming Yeung Luke Wan, Wai Kin Cheung, Yu Fu Cheung
  • Patent number: 11548273
    Abstract: After molding a substrate located between first and second molds of a molding system, a used release film that is in contact with the substrate during molding is removed from the molding system with a gripper assembly, which is reciprocally movable between a retracted position outside the molding system and an extended position in a space between the first and second molds when the first and second molds are opened. A carriage mechanism on which the gripper assembly is mounted moves the gripper assembly towards the first or second mold until the gripper assembly contacts the used release film, before an actuator actuates the gripper assembly to clamp onto a part of the used release film. The carriage mechanism also conveys the gripper assembly away from the first mold or second mold to remove the used release film from the molding system.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: January 10, 2023
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Ji Yuan Hao, Patrocinio Jr Go Torres, Teng Hock Kuah, Kai Wu, Moung Kai Kong
  • Patent number: 11543362
    Abstract: A height of a vertical wire interconnection bonded onto a substrate is measured by first capturing a top view of the vertical wire interconnection and identifying a position of a tip end of the vertical wire interconnection from the top view. A conductive probe is located over the tip end of the vertical wire interconnection, and is lowered towards the vertical wire interconnection until an electrical connection is made between the conductive probe and the tip end of the vertical wire interconnection. A contact height at which the electrical connection is made may thus be determined, wherein the contact height corresponds to the height of the vertical wire interconnection.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: January 3, 2023
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Keng Yew Song, Chi Kwan Park, Jiang Huang, Ya Ping Zhu, Mow Huat Goh
  • Patent number: 11467270
    Abstract: An imaging device testing system has a light receiver for receiving light from an imaging device under test, a light emitter for returning the light back to the imaging device under test, and first and second transceiver tables movable relative to each other. The first transceiver table has a first light redirecting module for receiving the light from the light receiver and the second transceiver table comprising a second light redirecting module for transmitting the light to the light emitter. The first and second light redirecting modules are positionable to simulate a distance travelled by the light from the light receiver, through the first and second light redirecting modules and a gap between the first and second light redirecting modules, to the light emitter.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: October 11, 2022
    Assignee: ASMPT SINGAPORE PTE. LTD.
    Inventors: Lian Hok Tan, Malliah Ramkumar, Hong Liang Lu, Jiangwen Deng, Hei Lam Chang