Patents by Inventor Pak Hong Yee

Pak Hong Yee 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: 8130210
    Abstract: A touch input system includes a light-emitting device, a bent light guide and a light detector. The light-emitting device emits light. The bent light guide receives the light emitted by the light-emitting device and guides the light to travel in a direction across a face of a display screen. The light detector detects the light.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: March 6, 2012
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Kuldeep Kumar Saxena, Wee Sin Tan, Peng Yam Ng, Pak Hong Yee, Rani Ramamoorthy Saravanan
  • Patent number: 7842957
    Abstract: A transceiver having a light source die, a photodetector die and a substrate is disclosed. The substrate has a first well in which the light source die is mounted and a second well in which the photodetector die is mounted. The substrate has a reflective surface which blocks light leaving the light source from reaching the photodetector unless the light is reflected by an object external to the transceiver. The reflecting surface of the second well in the substrate is shaped to concentrate light received from outside the transceiver onto the photodetector, and in one aspect of the invention it comprises a non-imaging optical element. The light source is powered by applying a potential between first and second contacts on the light source die. A signal is generated between first and second contacts on the photodetector die in response to illumination of the photodetector die.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: November 30, 2010
    Assignee: Avago Technologies ECBU IP (Singapore) Pte, Ltd.
    Inventors: Teck Chai Goh, Deng Peng Chen, Basoor Suresh, Wee Sin Tan, Peng Yam Ng, Sin Heng Lim, Pak Hong Yee
  • Patent number: 7521794
    Abstract: A semiconductor device for dissipating heat generated by a die during operation and having a low height profile, a semiconductor die package incorporating the device, and methods of fabricating the device and package are provided. In one embodiment, the semiconductor device comprises a thick thermally conductive plane (e.g., copper plane) mounted on a thin support substrate and interfaced with a die. Thermally conductive via interconnects extending through the substrate conduct heat generated by the die from the conductive plane to conductive balls mounted on traces on the opposing side of the substrate. In another embodiment, the semiconductor devices comprises a thick thermally conductive plane (e.g., copper foil) sandwiched between insulative layers, with signal planes (e.g., traces, bonding pads) disposed on the insulative layers, a die mounted on a first signal plane, and solder balls mounted on bonding pads of a second signal plane.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: April 21, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Pak Hong Yee, Teck Kheng Lee
  • Patent number: 7514666
    Abstract: Multiple devices that operate at different wavelengths of light are incorporated into a single composite assembly to reduce the amount of space that is needed to incorporate the assembly into a consumer electronics device. In addition, by implementing the devices in a single composite assembly, costs associated with manufacturing, assembly and shipping the assembly can be reduced. The composite assembly includes filtering mechanisms that prevent undesired wavelengths of light from impinging on the devices.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: April 7, 2009
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Pak Hong Yee, Jing Zhang, Wee Sin Tan
  • Patent number: 7495204
    Abstract: An RC receiver device and an ambient light photosensor (ALPS) device are mounted on a single mounting device (e.g., circuit board or lead frame substrate) such that they are part of a single composite assembly. This reduces the amount of space that is consumed in electronic devices in which the assemblies are installed, which allows the electronic devices to be made smaller in size. In addition, implementing both the RC receiver device and the ALPS device in a single composite assembly lowers costs associated with manufacturing, assembling and shipping the composite assembly.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: February 24, 2009
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Jing Zhang, Pak Hong Yee, Wee Sin Tan
  • Patent number: 7459346
    Abstract: A semiconductor device for dissipating heat generated by a die during operation and having a low height profile, a semiconductor die package incorporating the device, and methods of fabricating the device and package are provided. In one embodiment, the semiconductor device comprises a thick thermally conductive plane (e.g., copper plane) mounted on a thin support substrate and interfaced with a die. Thermally conductive via interconnects extending through the substrate conduct heat generated by the die from the conductive plane to conductive balls mounted on traces on the opposing side of the substrate. In another embodiment, the semiconductor devices comprises a thick thermally conductive plane (e.g., copper foil) sandwiched between insulative layers, with signal planes (e.g., traces, bonding pads) disposed on the insulative layers, a die mounted on a first signal plane, and solder balls mounted on bonding pads of a second signal plane.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: December 2, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Pak Hong Yee, Teck Kheng Lee
  • Publication number: 20080219673
    Abstract: A transceiver having a light source die, a photodetector die and a substrate is disclosed. The substrate has a first well in which the light source die is mounted and a second well in which the photodetector die is mounted. The substrate has a reflective surface which blocks light leaving the light source from reaching the photodetector unless the light is reflected by an object external to the transceiver. The reflecting surface of the second well in the substrate is shaped to concentrate light received from outside the transceiver onto the photodetector, and in one aspect of the invention it comprises a non-imaging optical element. The light source is powered by applying a potential between first and second contacts on the light source die. A signal is generated between first and second contacts on the photodetector die in response to illumination of the photodetector die.
    Type: Application
    Filed: March 8, 2007
    Publication date: September 11, 2008
    Inventors: Teck Chai Goh, Deng Peng Chen, Basoor Suresh, Wee Sin Tan, Peng Yam Ng, Sin Heng Lim, Pak Hong Yee
  • Publication number: 20080011940
    Abstract: An RC receiver device and an ambient light photosensor (ALPS) device are mounted on a single mounting device (e.g., circuit board or lead frame substrate) such that they are part of a single composite assembly. This reduces the amount of space that is consumed in electronic devices in which the assemblies are installed, which allows the electronic devices to be made smaller in size. In addition, implementing both the RC receiver device and the ALPS device in a single composite assembly lowers costs associated with manufacturing, assembling and shipping the composite assembly.
    Type: Application
    Filed: October 23, 2006
    Publication date: January 17, 2008
    Inventors: Jing Zhang, Pak Hong Yee, Wee Sin Tan
  • Publication number: 20080011939
    Abstract: Multiple devices that operate at different wavelengths of light are incorporated into a single composite assembly to reduce the amount of space that is needed to incorporate the assembly into a consumer electronics device. In addition, by implementing the devices in a single composite assembly, costs associated with manufacturing, assembly and shipping the assembly can be reduced. The composite assembly includes filtering mechanisms that prevent undesired wavelengths of light from impinging on the devices.
    Type: Application
    Filed: October 23, 2006
    Publication date: January 17, 2008
    Inventors: Pak Hong YEE, Jing Zhang, Wee Sin Tan
  • Publication number: 20080013961
    Abstract: A remote control (RC) receiver device and an ambient light photosensor (ALPS) device are mounted on a single mounting device (e.g., printed circuit board) such that they are part of a single composite assembly. This reduces the amount of space that is needed in electronic devices that incorporate both RC receiver devices and ALPS devices. In addition, by implementing both devices in a single composite assembly, costs associated with manufacturing, assembly and shipping can be reduced. Because the RC receiver device and the ALPS device operate on light of different wavelengths, the composite assembly includes filtering mechanisms that prevent undesired wavelengths of light from impinging on the photodiode of the RC receiver device and on the photosensor of the ALPS device.
    Type: Application
    Filed: October 23, 2006
    Publication date: January 17, 2008
    Inventors: Pak Hong YEE, Peng Yam Ng, Wee Sin Tan
  • Patent number: 7285971
    Abstract: A testing apparatus and method for testing integrated circuits is disclosed wherein a device under test is continuously maintained at a desired set point temperature by an included thermal body. The thermal body has an enclosed phase change material which provides latent heat to the device under test such that there is negligible temperature variation realized by integrated circuits being tested.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: October 23, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Pak Hong Yee, Wuu Yean Tay
  • Patent number: 7138711
    Abstract: A semiconductor device for dissipating heat generated by a die during operation and having a low height profile, a semiconductor die package incorporating the device, and methods of fabricating the device and package are provided. In one embodiment, the semiconductor device comprises a thick thermally conductive plane (e.g., copper plane) mounted on a thin support substrate and interfaced with a die. Thermally conductive via interconnects extending through the substrate conduct heat generated by the die from the conductive plane to conductive balls mounted on traces on the opposing side of the substrate. In another embodiment, the semiconductor devices comprises a thick thermally conductive plane (e.g., copper foil) sandwiched between insulative layers, with signal planes (e.g., traces, bonding pads) disposed on the insulative layers, a die mounted on a first signal plane, and solder balls mounted on bonding pads of a second signal plane.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: November 21, 2006
    Assignee: Micron Technology, Inc.
    Inventors: Pak Hong Yee, Teck Kheng Lee
  • Publication number: 20060132454
    Abstract: In one embodiment, a touch detection system and method is achieved having high resolution by forming an integrated array of alternating emitters and detectors. Using integration techniques, the detectors can be made much larger than the emitters while the gaps between the emitters and detectors are maintained relatively small. Thus, high resolution is achieved without dramatically increasing the number of emitter/detector pairs. In one embodiment each array is positioned on an edge of a display such that the emitter of one array is lined up (on axis with) a detector of an opposing display. In one embodiment, the touch detection system and method operates to detect the amplitude of signals arriving from opposing arrays so as to precisely determine the location of a touched position. Off-axis scanning can be employed to increase sensitivity.
    Type: Application
    Filed: December 16, 2004
    Publication date: June 22, 2006
    Inventors: Deng-Peng Chen, Wee-Sin Tan, Kai-Koon Lee, Chee-Heng Wong, Soon-Lee Tan, Masatoshi Yamai, Pak-Hong Yee, Rani Saravanan, Seok Chan
  • Patent number: 7030640
    Abstract: A testing apparatus and method for testing integrated circuits is disclosed wherein a device under test is continuously maintained at a desired set point temperature by an included thermal body. The thermal body has an enclosed phase change material which provides latent heat to the device under test such that there is negligible temperature variation realized by integrated circuits being tested.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: April 18, 2006
    Assignee: Micron Technology, Inc.
    Inventors: Pak Hong Yee, Wuu Yean Tay
  • Publication number: 20050200376
    Abstract: A testing apparatus and method for testing integrated circuits is disclosed wherein a device under test is continuously maintained at a desired set point temperature by an included thermal body. The thermal body has an enclosed phase change material which provides latent heat to the device under test such that there is negligible temperature variation realized by integrated circuits being tested.
    Type: Application
    Filed: July 1, 2004
    Publication date: September 15, 2005
    Inventors: Pak Hong Yee, Wuu Yean Tay
  • Publication number: 20030230799
    Abstract: A semiconductor device for dissipating heat generated by a die during operation and having a low height profile, a semiconductor die package incorporating the device, and methods of fabricating the device and package are provided. In one embodiment, the semiconductor device comprises a thick thermally conductive plane (e.g., copper plane) mounted on a thin support substrate and interfaced with a die. Thermally conductive via interconnects extending through the substrate conduct heat generated by the die from the conductive plane to conductive balls mounted on traces on the opposing side of the substrate. In another embodiment, the semiconductor devices comprises a thick thermally conductive plane (e.g., copper foil) sandwiched between insulative layers, with signal planes (e.g., traces, bonding pads) disposed on the insulative layers, a die mounted on a first signal plane, and solder balls mounted on bonding pads of a second signal plane.
    Type: Application
    Filed: June 17, 2002
    Publication date: December 18, 2003
    Applicant: Micron Technology, Inc.
    Inventors: Pak Hong Yee, Teck Kheng Lee
  • Patent number: 6387729
    Abstract: A method and apparatus for producing an integrated circuit package (30) comprising a substrate (70) having an opening (86) and first and second surfaces (92, 94), a plurality of routing strips (82) being integral with the substrate (70) and extending into the opening (86), a plurality of pads (100) disposed on the first and second surfaces (92, 94) are electrically connected with at least one of the routing strips (82), wire bonding (80) electrically connecting at least one bonding pad (120) to at least one of the routing strips (82) and a silicon chip (50) attached to the printed circuit board (70) by an adhesive material (60) that provide a seal between silicon chip (50) and printed circuit board (70) is disclosed.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: May 14, 2002
    Assignee: Texas Instruments Incorporated
    Inventors: Kian Teng Eng, Min Yu Chan, Jing Sua Goh, Siu Waf Low, Boon Pew Chan, Tuck Fook Toh, Chee Kiang Yew, Pak Hong Yee
  • Patent number: 6365833
    Abstract: A method and apparatus for producing an integrated circuit package (30) comprising a substrate (70) having an opening (86) and first and second surfaces (92, 94), a plurality of routing strips (82) being integral with the substrate (70) and extending into the opening (86), a plurality of pads (100) disposed on the first and second surfaces (92, 94) are electrically connected with at least one of the routing strips (82), wire bonding (80) electrically connecting at least one bonding pad (120) to at least one of the routing strips (82) and a silicon chip (50) attached to the printed circuit board (70) by an adhesive material (60) that provide a seal between silicon chip (50) and printed circuit board (70) is disclosed.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: April 2, 2002
    Assignee: Texas Instruments Incorporated
    Inventors: Kian Teng Eng, Min Yu Chan, Jing Sua Goh, Siu Waf Low, Boon Pew Chan, Tuck Fook Toh, Chee Kiang Yew, Pak Hong Yee
  • Publication number: 20020001882
    Abstract: A method and apparatus for producing an integrated circuit package (30) comprising a substrate (70) having an opening (86) and first and second surfaces (92, 94), a plurality of routing strips (82) being integral with the substrate (70) and extending into the opening (86), a plurality of pads (100) disposed on the first and second surfaces (92, 94) are electrically connected with at least one of the routing strips (82), wire bonding (80) electrically connecting at least one bonding pad (120) to at least one of the routing strips (82) and a silicon chip (50) attached to the printed circuit board (70) by an adhesive material (60) that provide a seal between silicon chip (50) and printed circuit board (70) is disclosed.
    Type: Application
    Filed: July 6, 2001
    Publication date: January 3, 2002
    Inventors: Kian Teng Eng, Min Yu Chan, Jing Sua Goh, Siu Waf Low, Boon Pew Chan, Tuck Fook Toh, Chee Kiang Yew, Pak Hong Yee
  • Patent number: 6087203
    Abstract: A method and apparatus for producing an integrated circuit package (30) comprising a substrate (70) having an opening (86) and first and second surfaces (92, 94), a plurality of routing strips (82) being integral with the substrate (70) and extending into the opening (86), a plurality of pads (100) disposed on the first and second surfaces (92, 94) are electrically connected with at least one of the routing strips (82), wire bonding (80) electrically connecting at least one bonding pad (120) to at least one of the routing strips (82) and a silicon chip (50) attached to the printed circuit board (70) by an adhesive material (60) that provide a seal between silicon chip (50) and printed circuit board (70) is disclosed.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: July 11, 2000
    Assignee: Texas Instruments Incorporated
    Inventors: Kian Teng Eng, Min Yu Chan, Jing Sua Goh, Siu Waf Low, Boon Pew Chan, Tuck Fook Toh, Chee Kiang Yew, Pak Hong Yee