Patents by Inventor Wee Tan

Wee Tan 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).

  • Publication number: 20080056326
    Abstract: The present invention provides a laser selective separation apparatus for separating two bonded parts being bonding together at a joint by bonding material. The present invention further provides a process for separating two bonded parts being bonding together at a joint by bonding material.
    Type: Application
    Filed: August 21, 2007
    Publication date: March 6, 2008
    Applicant: LaserResearch (S) Pte Ltd
    Inventors: Jun DUAN, Wee CHOK, Jui GOH, Wee TAN
  • Publication number: 20080030878
    Abstract: A bi-curvature lens for diodes in an infrared wireless communication transceiver is disclosed. Devices having such a bi-curvature lens, such as a light emitting device, a light detecting device, and a transceiver are also disclosed. A method for designing such a lens, and a method for fabricating a device having such a lens are also disclosed. The bi-curvature lens disclosed has a bottom hemispherical portion and a top aspherical portion. Light emitting diodes and photo detectors used in conjunction with bi-curvature lenses display symmetrical radiation intensity profiles, in accordance with Infrared Data Association standards and protocols.
    Type: Application
    Filed: August 7, 2007
    Publication date: February 7, 2008
    Inventors: Kuldeep Saxena, Wee Tan, Peng Ng, Sin Lim
  • Publication number: 20070229030
    Abstract: A transformer-based battery charging circuit and method for reducing heat generated by the circuit during inactive periods uses a light emitting device, which is electrically connected to the secondary winding of a transformer, and a light-dependent resistor, which is electrically connected to the primary winding of the transformer, to decrease the current conducted through the primary winding of the transformer during the inactive periods.
    Type: Application
    Filed: March 31, 2006
    Publication date: October 4, 2007
    Inventors: Deng Chen, Wee Tan
  • Publication number: 20070221828
    Abstract: In one embodiment, an optical input device for providing input to an electronic device is disclosed. The optical input device includes a panel operable to transmit light from a first side to a second side, and a matrix of photodetectors. The first side of the panel is disposed for interaction with a pointer. The matrix of photodetectors is disposed on the second side of the panel, and detects the light transmitted from the first side to the second side of the panel. The photodetectors have overlapping fields of view with respect to the first side of the panel, and each of the photodetectors generates a value corresponding to an intensity of detected light.
    Type: Application
    Filed: March 23, 2006
    Publication date: September 27, 2007
    Inventors: Kuldeep Saxena, Wee Tan, Soon Tan
  • Publication number: 20060252194
    Abstract: An example method embodiment forms spacers that create tensile stress on the substrate on both the PFET and NFET regions. We form PFET and NFET gates and form tensile spacers on the PFET and NFET gates. We implant first ions into the tensile PFET spacers to form neutralized stress PFET spacers. The neutralized stress PFET spacers relieve the tensile stress created by the tensile stress spacers on the substrate. This improves device performance.
    Type: Application
    Filed: May 4, 2005
    Publication date: November 9, 2006
    Inventors: Khee Lim, Wenhe Lin, Chung Lai, Yong Lee, Liang Hsia, Young Teh, John Sudijono, Wee Tan, Hui Koh
  • Publication number: 20060249794
    Abstract: An example process to remove spacers from the gate of a NMOS transistor. A stress creating layer is formed over the NMOS and PMOS transistors and the substrate. In an embodiment, the spacers on gate are removed so that stress layer is closer to the channel of the device. The stress creating layer is preferably a tensile nitride layer. The stress creating layer is preferably a contact etch stop liner layer. In an embodiment, the gates, source and drain region have an silicide layer thereover before the stress creating layer is formed. The embodiment improves the performance of the NMOS transistors.
    Type: Application
    Filed: May 4, 2005
    Publication date: November 9, 2006
    Inventors: Young Teh, Yong Lee, Chung Lai, Wenhe Lin, Khee Lim, Wee Tan, John Sudijono, Hui Koh, Liang Hsia
  • Publication number: 20060237540
    Abstract: Reflection of light from a surface is sensed by emitting light from a light emitting diode and focusing the light using an aspherical emitter lens to illuminate a reflecting surface. Light reflected by the reflecting surface is focused onto a photodetector using an aspherical collector lens. The light emitting diode is displaced from the optical axis of the aspherical emitter lens and the photodetector is displaced from the optical axis of the aspherical collector lens.
    Type: Application
    Filed: April 25, 2005
    Publication date: October 26, 2006
    Inventors: Kuldeep Saxena, Wee Tan
  • Publication number: 20060198032
    Abstract: A bi-curvature lens for diodes in an infrared wireless communication transceiver is disclosed. Devices having such a bi-curvature lens, such as a light emitting device, a light detecting device, and a transceiver are also disclosed. A method for designing such a lens, and a method for fabricating a device having such a lens are also disclosed. The bi-curvature lens disclosed has a bottom hemispherical portion and a top aspherical portion. Light emitting diodes and photo detectors used in conjunction with bi-curvature lenses display symmetrical radiation intensity profiles, in accordance with Infrared Data Association standards and protocols.
    Type: Application
    Filed: March 7, 2005
    Publication date: September 7, 2006
    Inventors: Kuldeep Saxena, Wee Tan, Peng Ng, Sin Lim
  • Publication number: 20060163569
    Abstract: A test structure of a semiconductor device is provided. The test structure includes a semiconductor substrate, a transistor which includes a gate electrode formed on first and second active regions defined within the semiconductor substrate, and first and second junction regions which are arranged at both sidewalls of the gate electrode to reside within the first and second active regions and are silicided, and first and second pads through which electrical signals are applied to the silicided first and second junction regions and detected and which are formed on the same level as the gate electrode or the semiconductor substrate.
    Type: Application
    Filed: September 2, 2005
    Publication date: July 27, 2006
    Inventors: Min-chul Sun, Ja-hum Ku, Brian Greene, Manfred Eller, Wee Tan, Sunfei Fang, Zhijiong Luo
  • Publication number: 20060114244
    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: Application
    Filed: November 30, 2004
    Publication date: June 1, 2006
    Inventors: Kuldeep Saxena, Wee Tan, Peng Ng, Pak Yee, Rani Saravanan
  • Publication number: 20060073844
    Abstract: An electronic device having a first piece, a second piece moveable between an open position and a closed position with respect to the first piece, and an ambient light sensor operable to detect ambient light when the second piece is not closed. The electronic device is operated in a first mode when the second piece is in an open position and in a second mode when the second piece is in the closed position.
    Type: Application
    Filed: September 30, 2004
    Publication date: April 6, 2006
    Inventors: Serene Chan, Chee Lim, Tammy Ho, Wee Tan
  • Publication number: 20060060762
    Abstract: An electronic device having a first piece, a second piece moveable with respect to the first piece, and a position sensor operable to sense the position of the second piece relative to the first piece. The electronic device is operated in a first mode or a second mode dependent upon the position of the second piece relative to the first piece. Optionally, a proximity sensor is provided to detect the presence of a body in close proximity to the device when the second piece is in an open position relative to the first piece.
    Type: Application
    Filed: September 22, 2004
    Publication date: March 23, 2006
    Inventors: Serene Chan, Chee Lim, Tammy Ho, Wee Tan, Freddy Ho, Peng Ng, Josephine Quek, Chi-Boon Ong, Sin Lim, Kuldeep Saxena
  • Publication number: 20060045530
    Abstract: An optical transceiver includes a substrate having first and second sides. A light emitter mounted to the first side. A light receiver is mounted to the first side and comprises a dielectric totally internally reflecting concentrator directing light to a photodetector. Amplification circuits are mounted to the second side and are electrically connected to the light emitter and the light receiver through the substrate. The light emitter and the light receiver are housed in separate molded housings. A DTIRC is used to provide a good link distance and a wide field of view.
    Type: Application
    Filed: August 31, 2004
    Publication date: March 2, 2006
    Inventors: Sin Lim, Wee Tan, Peng Ng, Suresh Basoor, Kuldeep Saxena
  • Publication number: 20060016994
    Abstract: According to at least one embodiment of the invention, a method includes mounting a transmitting device and a receiving device on a circuit board, wherein the circuit board includes a layer that blocks waves (e.g., light waves) emitted from the transmitting device, and wherein the transmitting device and the receiving device are mounted in an area defined by the layer. The method further includes manipulating a structure to form a first compartment for the transmitting device and a second compartment for the receiving device, wherein the compartments are separated by a common wall such that each compartment is continuous with at least part of the common wall. The method further comprises mounting the structure on the circuit board.
    Type: Application
    Filed: July 22, 2004
    Publication date: January 26, 2006
    Inventors: Suresh Basoor, Peng Ng, Wee Tan, Wong Loong
  • Publication number: 20060007274
    Abstract: An embodiment of the invention provides a mechanism for controlling at least one ink transmission module, which controls a supply of ink using received control rotation. The mechanism includes an input, to receive control rotation. The mechanism also includes an output, to selectively transfer the control rotation to the ink transmission module. A control system is also provided to control the selective transfer of the output. The mechanism is moveable into a disengaged configuration by the control system, in which the output does not transfer rotation of the input to the ink transmission module, by a first predetermined sequence of rotations of the input, and into an engaged configuration, in which the output transfers rotation of the input to the ink transmission module, by a second predetermined sequence of rotations of the input.
    Type: Application
    Filed: July 9, 2004
    Publication date: January 12, 2006
    Inventors: Pui Huang, Seng Koh, Kok Chan, Wee Tan