Patents by Inventor Sam Kuo

Sam Kuo 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: 20150331438
    Abstract: A complete power management system implemented in a single surface mount package. The system may be drawn to a DC to DC converter system and includes, in a leadless surface mount package, a driver/controller, a MOSFET transistor, passive components (e.g., inductor, capacitor, resistor), and optionally a diode. The MOSFET transistor may be replaced with an insulated gate bipolar transistor, IGBT in various embodiments. The system may also be a power management system, a smart power module or a motion control system. The passive components may be connected between the leadframe connections. The active components may be coupled to the leadframe using metal clip bonding techniques. In one embodiment, an exposed metal bottom may act as an effective heat sink.
    Type: Application
    Filed: July 28, 2015
    Publication date: November 19, 2015
    Inventors: King Owyang, Mohammed Kasem, Yuming Bai, Frank Kuo, Sen Mao, Sam Kuo
  • Patent number: 9093359
    Abstract: A complete power management system implemented in a single surface mount package. The system may be drawn to a DC to DC converter system and includes, in a leadless surface mount package, a driver/controller, a MOSFET transistor, passive components (e.g., inductor, capacitor, resistor), and optionally a diode. The MOSFET transistor may be replaced with an insulated gate bipolar transistor, IGBT in various embodiments. The system may also be a power management system, a smart power module or a motion control system. The passive components may be connected between the leadframe connections. The active components may be coupled to the leadframe using metal clip bonding techniques. In one embodiment, an exposed metal bottom may act as an effective heat sink.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: July 28, 2015
    Assignee: Vishay-Siliconix
    Inventors: King Owyang, Mohammed Kasem, Yuming Bai, Frank Kuo, Sen Mao, Sam Kuo
  • Patent number: 8928138
    Abstract: A complete power management system implemented in a single surface mount package. The system may be drawn to a DC to DC converter system and includes, in a leadless surface mount package, a driver/controller, a MOSFET transistor, passive components (e.g., inductor, capacitor, resistor), and optionally a diode. The MOSFET transistor may be replaced with an insulated gate bipolar transistor, IGBT in various embodiments. The system may also be a power management system, a smart power module or a motion control system. The passive components may be connected between the leadframe connections. The active components may be coupled to the leadframe using metal clip bonding techniques. In one embodiment, an exposed metal bottom may act as an effective heat sink.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: January 6, 2015
    Assignee: Vishay-Siliconix
    Inventors: King Owyang, Mohammed Kasem, Yuming Bai, Frank Kuo, Sen Mao, Sam Kuo
  • Patent number: 8471381
    Abstract: A complete power management system implemented in a single surface mount package. The system may be drawn to a DC to DC converter system and includes, in a leadless surface mount package, a driver/controller, a MOSFET transistor, passive components (e.g., inductor, capacitor, resistor), and optionally a diode. The MOSFET transistor may be replaced with an insulated gate bipolar transistor, IGBT in various embodiments. The system may also be a power management system, a smart power module or a motion control system. The passive components may be connected between the leadframe connections. The active components may be coupled to the leadframe using metal clip bonding techniques. In one embodiment, an exposed metal bottom may act as an effective heat sink.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: June 25, 2013
    Assignee: Vishay-Siliconix
    Inventors: King Owyang, Mohammed Kasem, Yuming Bai, Frank Kuo, Sen Mao, Sam Kuo
  • Publication number: 20100219519
    Abstract: A complete power management system implemented in a single surface mount package. The system may be drawn to a DC to DC converter system and includes, in a leadless surface mount package, a driver/controller, a MOSFET transistor, passive components (e.g., inductor, capacitor, resistor), and optionally a diode. The MOSFET transistor may be replaced with an insulated gate bipolar transistor, IGBT in various embodiments. The system may also be a power management system, a smart power module or a motion control system. The passive components may be connected between the leadframe connections. The active components may be coupled to the leadframe using metal clip bonding techniques. In one embodiment, an exposed metal bottom may act as an effective heat sink.
    Type: Application
    Filed: May 13, 2010
    Publication date: September 2, 2010
    Inventors: King Owyang, Mohammed Kasem, Yuming Bai, Frank Kuo, Sen Mao, Sam Kuo
  • Publication number: 20070063341
    Abstract: A complete power management system implemented in a single surface mount package. The system may be drawn to a DC to DC converter system and includes, in a leadless surface mount package, a driver/controller, a MOSFET transistor, passive components (e.g., inductor, capacitor, resistor), and optionally a diode. The MOSFET transistor may be replaced with an insulated gate bipolar transistor, IGBT in various embodiments. The system may also be a power management system, a smart power module or a motion control system. The passive components may be connected between the leadframe connections. The active components may be coupled to the leadframe using metal clip bonding techniques. In one embodiment, an exposed metal bottom may act as an effective heat sink.
    Type: Application
    Filed: June 30, 2006
    Publication date: March 22, 2007
    Inventors: King Owyang, Mohammed Kasem, Yuming Bai, Frank Kuo, Sen Mao, Sam Kuo
  • Publication number: 20070063340
    Abstract: A complete power management system implemented in a single surface mount package. The system may be drawn to a DC to DC converter system and includes, in a leadless surface mount package, a driver/controller, a MOSFET transistor, passive components (e.g., inductor, capacitor, resistor), and optionally a diode. The MOSFET transistor may be replaced with an insulated gate bipolar transistor, IGBT in various embodiments. The system may also be a power management system, a smart power module or a motion control system. The passive components may be connected between the leadframe connections. The active components may be coupled to the leadframe using metal clip bonding techniques. In one embodiment, an exposed metal bottom may act as an effective heat sink.
    Type: Application
    Filed: June 30, 2006
    Publication date: March 22, 2007
    Inventors: King Owyang, Mohammed Kasem, Yuming Bai, Frank Kuo, Sen Mao, Sam Kuo
  • Patent number: 6744119
    Abstract: A die pad (81) of a leadframe (8) has a plurality of slots (811-814) that extend through the die pad to define a restrictive region (815). One of the slots extends around a comer of the restrictive region outside where a die (7) is connected to the die pad by solder paste (6). Because of the cohesion of the solder paste, the solder paste does not flow into the slots. The solder paste is thereby restricted to the restrictive region. This prevents the die from drifting or rotating so as to increase the packaging quality.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: June 1, 2004
    Assignee: Siliconix (Taiwan) Ltd.
    Inventors: Frank Kuo, Sen Mao, Sam Kuo, Oscar Ou
  • Patent number: 6414362
    Abstract: A power semiconductor device includes a die having a drain contact, a source contact, a primary gate contact, a partitioning region that partitions the source contact, and a secondary gate contact disposed in the partitioning region. A conductive strip is connected to the primary and secondary gate contacts. An insulation layer encloses a segment of the conductive strip. A conductive connecting member includes a metal sheet and a conductive paste. The metal sheet is attached to the source contact via the conductive paste and is formed with a groove to expose the insulation layer from the metal sheet.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: July 2, 2002
    Assignee: Siliconx (Taiwan) Ltd.
    Inventors: Frank Kuo, Mohammed Kasem, Sen Mao, Oscar Ou, Sam Kuo
  • Publication number: 20020056894
    Abstract: The present invention relates to a die pad of a leadframe. The die pad is used for receiving a die. The die and the die pad are connected by a solder paste. The die pad comprises a plurality of slots. The slots extend through the die pad. A restrictive region is defined by the slots such that the solder paste is restricted within the restrictive region. The die is positioned on the restrictive region. Because of the cohesion of the solder paste, the solder paste does not flow into the slots. Therefore, the solder paste does not flow and expand everywhere during the heating process. The solder paste is restricted within the restrictive region so that the die on the solder paste does not drift so as to increase the packaging quality.
    Type: Application
    Filed: October 15, 2001
    Publication date: May 16, 2002
    Inventors: Frank Kuo, Sen Mao, Sam Kuo, Oscar Ou
  • Publication number: 20010052641
    Abstract: A power semiconductor device includes upper and lower dice that have source, drain and gate contacts, a first metal sheet sandwiched by the upper and lower dice and having source and gate terminals connected to the source and gate contacts of the upper and lower dice, and upper and lower second metal sheets sandwiching assembly of the upper and lower dice and the first metal sheet and respectively having drain terminals that are connected to the drain contacts of the upper and lower dice and that are coupled to each other.
    Type: Application
    Filed: June 12, 2001
    Publication date: December 20, 2001
    Inventors: Frank Kuo, Hamza Yilmaz, Mohammed Kasem, Oscar Ou, Sen Mao, Sam Kuo