Patents by Inventor Suresh Upadhyayula

Suresh Upadhyayula 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: 8008132
    Abstract: A method of fabricating a leadframe-based semiconductor package, and a semiconductor package formed thereby, are disclosed. The semiconductor package includes a leadframe and one or more semiconductor die affixed to a die paddle of the leadframe. The leadframe is formed with a plurality of electrical terminals that get surface mounted to a host PCB. The leadframe further includes one or more extended leads, at least one of which includes an electrically conductive island which gets surface mounted to the host PCB with the electrical terminals. The islands effectively increase the number terminals within the package without adding footprint to the package.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: August 30, 2011
    Assignee: SanDisk Technologies Inc.
    Inventors: Suresh Upadhyayula, Bonnie Ming-Yan Chan, Shih-Ping Fan-chiang, Hem Takiar
  • Publication number: 20110095440
    Abstract: A semiconductor package including a plurality of stacked semiconductor die, and methods of forming the semiconductor package, are disclosed. In order to ease wirebonding requirements on the controller die, the controller die may be mounted directly to the substrate in a flip chip arrangement requiring no wire bonds or footprint outside of the controller die. Thereafter, a spacer layer may be affixed to the substrate around the controller die to provide a level surface on which to mount one or more flash memory die. The spacer layer may be provided in a variety of different configurations.
    Type: Application
    Filed: January 7, 2011
    Publication date: April 28, 2011
    Inventors: Suresh Upadhyayula, Hem Takiar
  • Publication number: 20110024897
    Abstract: Methods of forming integrated circuit packages having an LED molded into the package, and the integrated circuit package formed thereby. An integrated circuit including one or more semiconductor die, passive components and an LED may be assembled on a panel. The one or more semiconductor die, passive components and LED may all then be encapsulated in a molding compound, and the integrated circuits then singularized to form individual integrated circuit packages. The integrated circuits are cut from the panel so that a portion of the lens of the LED is severed during the singularization process, and an end of the lens remaining within the package lies flush with an edge of the package to emit light outside of the package.
    Type: Application
    Filed: October 11, 2010
    Publication date: February 3, 2011
    Applicant: SANDISK CORPORATION
    Inventors: Hem Takiar, Suresh Upadhyayula
  • Patent number: 7867819
    Abstract: A semiconductor package including a plurality of stacked semiconductor die, and methods of forming the semiconductor package, are disclosed. In order to ease wirebonding requirements on the controller die, the controller die may be mounted directly to the substrate in a flip chip arrangement requiring no wire bonds or footprint outside of the controller die. Thereafter, a spacer layer may be affixed to the substrate around the controller die to provide a level surface on which to mount one or more flash memory die. The spacer layer may be provided in a variety of different configurations.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: January 11, 2011
    Assignee: SanDisk Corporation
    Inventors: Suresh Upadhyayula, Hem Takiar
  • Patent number: 7812356
    Abstract: Methods of forming integrated circuit packages having an LED molded into the package, and the integrated circuit package formed thereby. An integrated circuit including one or more semiconductor die, passive components and an LED may be assembled on a panel. The one or more semiconductor die, passive components and LED may all then be encapsulated in a molding compound, and the integrated circuits then singularized to form individual integrated circuit packages. The integrated circuits are cut from the panel so that a portion of the lens of the LED is severed during the singularization process, and an end of the lens remaining within the package lies flush with an edge of the package to emit light outside of the package.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: October 12, 2010
    Assignee: SanDisk Corporation
    Inventors: Hem Takiar, Suresh Upadhyayula
  • Publication number: 20090166887
    Abstract: A semiconductor package including a plurality of stacked semiconductor die, and methods of forming the semiconductor package, are disclosed. In order to ease wirebonding requirements on the controller die, the controller die may be mounted directly to the substrate in a flip chip arrangement requiring no wire bonds or footprint outside of the controller die. Thereafter, a spacer layer may be affixed to the substrate around the controller die to provide a level surface on which to mount one or more flash memory die. The spacer layer may be provided in a variety of different configurations.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 2, 2009
    Inventors: Suresh Upadhyayula, Hem Takiar
  • Publication number: 20090165294
    Abstract: A low profile USB flash memory device, and methods of forming same, are disclosed. The USB flash memory device includes an integrated circuit memory portion and a USB connector. The memory portion and the USB connector may be integrally formed on the same substrate. The USB flash memory device includes a substrate on which is mounted one or more flash memory die, a controller die, passive components and an LED for indicating when the memory is being accessed. In contrast to prior art USB memory devices which used TSOP packages mounted on a printed circuit board, the semiconductor die of the present invention are affixed to the substrate and wire bonded in a SIP configuration. Omitting the encapsulated TSOP packages allows a reduction in the overall thickness of the USB flash memory device.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 2, 2009
    Inventors: Suresh Upadhyayula, Robert C. Miller, Hem Takiar, Steven Sprouse, Ka Ian Yung
  • Publication number: 20090166828
    Abstract: A method of fabricating a leadframe-based semiconductor package, and a semiconductor package formed thereby, are disclosed. The semiconductor package includes a leadframe and one or more semiconductor die affixed to a die paddle of the leadframe. The leadframe is formed with a plurality of electrical terminals that get surface mounted to a host PCB. The leadframe further includes one or more extended leads, at least one of which includes an electrically conductive island which gets surface mounted to the host PCB with the electrical terminals. The islands effectively increase the number terminals within the package without adding footprint to the package.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 2, 2009
    Inventors: Suresh Upadhyayula, Bonnie Ming-Yan Chan, Shih-Ping Fan-chiang, Hem Takiar
  • Publication number: 20080198031
    Abstract: Methods of forming integrated circuit packages having an LED molded into the package, and the integrated circuit package formed thereby. An integrated circuit including one or more semiconductor die, passive components and an LED may be assembled on a panel. The one or more semiconductor die, passive components and LED may all then be encapsulated in a molding compound, and the integrated circuits then singularized to form individual integrated circuit packages. The integrated circuits are cut from the panel so that a portion of the lens of the LED is severed during the singularization process, and an end of the lens remaining within the package lies flush with an edge of the package to emit light outside of the package.
    Type: Application
    Filed: April 24, 2008
    Publication date: August 21, 2008
    Applicant: SANDISK CORPORATION
    Inventors: Hem Takiar, Suresh Upadhyayula
  • Patent number: 7384817
    Abstract: Methods of forming integrated circuit packages having an LED molded into the package, and the integrated circuit package formed thereby. An integrated circuit including one or more semiconductor die, passive components and an LED may be assembled on a panel. The one or more semiconductor die, passive components and LED may all then be encapsulated in a molding compound, and the integrated circuits then singularized to form individual integrated circuit packages. The integrated circuits are cut from the panel so that a portion of the lens of the LED is severed during the singularization process, and an end of the lens remaining within the package lies flush with an edge of the package to emit light outside of the package.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: June 10, 2008
    Assignee: SanDisk Corporation
    Inventors: Hem Takiar, Suresh Upadhyayula
  • Patent number: 7354314
    Abstract: A semiconductor device is disclosed including a sheathless connector having a grounding pin which protects against electrical shorts and damage upon a backwards insertion of the connector to a host device. If the electrical connector is inserted backwards, the grounding pin mates with the signal ground terminal of the socket, and avoids contact with the remaining terminals. As a result, the damage otherwise occurring upon a backwards insertion of prior art devices is avoided.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: April 8, 2008
    Assignee: SanDisk Corporation
    Inventors: Steven Sprouse, Ka Ian Yung, Suresh Upadhyayula, Patricio Collantes
  • Publication number: 20060270105
    Abstract: Methods of forming integrated circuit packages having an LED molded into the package, and the integrated circuit package formed thereby. An integrated circuit including one or more semiconductor die, passive components and an LED may be assembled on a panel. The one or more semiconductor die, passive components and LED may all then be encapsulated in a molding compound, and the integrated circuits then singularized to form individual integrated circuit packages. The integrated circuits are cut from the panel so that a portion of the lens of the LED is severed during the singularization process, and an end of the lens remaining within the package lies flush with an edge of the package to emit light outside of the package.
    Type: Application
    Filed: May 13, 2005
    Publication date: November 30, 2006
    Inventors: Hem Takiar, Suresh Upadhyayula
  • Patent number: D524817
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: July 11, 2006
    Assignee: SanDisk Corporation
    Inventors: Kevin M. Conley, Sanjay Dave, Michael Morganstern, Wesley G. Brewer, Robert C. Miller, Suresh Upadhyayula, Jeff Salazar, Daniel Kennedy, Robert Howard, Matt Peterson, Joel Jacobs