Patents by Inventor Saravuth Sirinorakul

Saravuth Sirinorakul 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: 9099317
    Abstract: A package includes a first plated area, a second plated area, a die attached to the first plated area, and a bond coupling the die to the second plated area. The package further includes a molding encapsulating the die, the bond, and the top surfaces of the first and second plated areas, such that the bottom surfaces of the first and second plated areas are exposed exterior to the package. Additional embodiments include a method of making the package.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: August 4, 2015
    Assignee: UTAC Thai Limited
    Inventors: Somchai Nondhasitthichai, Saravuth Sirinorakul
  • Patent number: 9093486
    Abstract: A process for forming land grid array semiconductor packages includes a leadframe that is supported by a substrate comprising mold compound. In some embodiments, at least one die is electrically coupled to the leadframe by bondwires. The package comprises a second mold compound to act as an encapsulant. An apparatus for forming a land grid array semiconductor package includes means for molding a leadframe, assembling thereon at least one semiconductor device, applying a second mold, and singulating to form individual devices. A land grid array package comprises a leadframe, a substrate for supporting the leadframe, at least one semiconductor device and a mold compound.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: July 28, 2015
    Assignee: UTAC Thai Limited
    Inventors: Somchai Nondhasitthichai, Saravuth Sirinorakul
  • Patent number: 9082607
    Abstract: A process for forming an optical package comprises at least partially encasing a first leadframe strip in a first mold compound thereby forming a molded leadframe strip, mounting at least one optical semiconductor device on the molded leadframe strip, at least partially encasing the molded leadframe strip, and singulating the molded leadframe strip to form discrete packages for optical applications. An apparatus for forming an optical package comprises means for at least partially encasing a first leadframe strip in a first mold compound thereby forming a molded leadframe strip, means for mounting at least one optical semiconductor device on the at least one molded leadframe strip, means for at least partially encasing the molded leadframe strip, and means for singulating the molded leadframe strip to form discrete and grid array packages.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: July 14, 2015
    Assignee: UTAC THAI LIMITED
    Inventors: Somchai Nondhasitthichai, Saravuth Sirinorakul
  • Publication number: 20150171022
    Abstract: A conductive polymer shielding layer covering insulating layer formed on an integrated-circuit die is provided and a method thereof. The method comprises die attaching, wire bonding, back etching, insulation molding, partial cutting, conductive material/polymer coating, and singulation.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 18, 2015
    Inventors: Saravuth Sirinorakul, Somchai Nondhasitthichail
  • Patent number: 9029198
    Abstract: A method of fabricating a semiconductor package includes forming a plurality of terminals on a sheet carrier, molding the sheet carrier with a first molding compound, creating electrical paths for a first routing layer, plating the first routing layer, placing dice on the first routing layer, encapsulating the dice with a second molding compound, removing at least a portion of the sheet carrier, and singulating the package from other packages.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: May 12, 2015
    Assignee: UTAC Thai Limited
    Inventors: Saravuth Sirinorakul, Suebphong Yenrudee
  • Patent number: 9006034
    Abstract: Method of and devices for protecting semiconductor packages are provided. The methods and devices comprise loading a leadframe containing multiple semiconductor packages into a molding device, adding a molding material on a surface of the leadframe, molding the molding material, such that the molding material covers the entire surface of the semiconductor packages except conducting terminals, and singulating the semiconductor packages from the leadframe after molding the molding material.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: April 14, 2015
    Assignee: UTAC Thai Limited
    Inventor: Saravuth Sirinorakul
  • Patent number: 9000590
    Abstract: A semiconductor package includes terminals extending from a bottom surface of the semiconductor package, and a layer of interconnection routings disposed within the semiconductor package. Each terminal includes a first plated section, a second plated section, and a portion of a sheet carrier from which the semiconductor package is built upon, wherein the portion is coupled between the first and second plated sections. Each interconnection routing is electrically coupled with a terminal and can extend planarly therefrom. The semiconductor package also includes at least one die coupled with the layer of interconnection routings. In some embodiments, the semiconductor package also includes at least one intermediary layer, each including a via layer and an associated routing layer. The semiconductor package includes a locking mechanism for fastening a package compound with the interconnection routings and the terminals.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: April 7, 2015
    Assignee: UTAC Thai Limited
    Inventors: Saravuth Sirinorakul, Suebphong Yenrudee
  • Patent number: 8871571
    Abstract: A frame includes heat slug pads coupled together in a N×M matrix such that singulation of the heat slug pads consists of one or more passes across the frame, wherein the one or more passes are parallel. A method of attaching heat slug pads to packages includes gathering a plurality of packages, preparing a heat slug frame including a N×M matrix of heat slug pads, dispensing thermally conductive material onto surfaces of the heat slug pads, attaching the plurality of packages onto the heat slug pads, and singulating the heat slug pads, wherein the singulating step consists of one or more parallel passes across the N×M matrix. A method of attaching heat slug foil to packages includes preparing a plurality of packages, laminating the heat slug foil to one side of the plurality of packages using thermally conductive material, and singulating the plurality of packages.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: October 28, 2014
    Assignee: UTAC Thai Limited
    Inventor: Saravuth Sirinorakul
  • Patent number: 8816482
    Abstract: A flip-chip leadframe semiconductor package designed to improve mold flow around the leadframe and semiconductor die. An embodiment of the semiconductor package includes a leadframe, a semiconductor die attached to the leadframe, and an encapsulant covering the leadframe and semiconductor die, wherein a portion of the leadframe that is attached to the semiconductor die is below a portion of the leadframe that enters the encapsulant.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: August 26, 2014
    Assignee: United Test and Assembly Center Ltd.
    Inventors: Saravuth Sirinorakul, Kasemsan Kongthaworn
  • Patent number: 8722461
    Abstract: A semiconductor package comprises a die attach pad and a support member at least partially circumscribing it. Several sets of contact pads are attached to the support member. The support member is able to be etched away thereby electrically isolating the contact pads. A method for making a leadframe and subsequently a semiconductor package comprises partially etching desired features into a copper substrate, and then through etching the substrate to form the support member and several sets of contact pads. Die attach, wirebonding and molding follow. The support member is etched away, electrically isolating the contact pads and leaving a groove in the bottom of the package. The groove is able to be filled with epoxy or mold compound.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: May 13, 2014
    Assignee: UTAC Thai Limited
    Inventor: Saravuth Sirinorakul
  • Patent number: 8704381
    Abstract: A package and method of making thereof. The package includes a first plated area, a second plated area, a die, a bond, and a molding. The die is attached to the first plated area, and the bond couples the die to the first and/or the second plated areas. The molding encapsulates the die, the bonding wire, and the top surfaces of the first and second plated areas, such that the bottom surfaces of the first and second plated areas are exposed exterior to the package.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: April 22, 2014
    Assignee: UTAC Thai Limited
    Inventors: Somchai Nondhasitthichai, Saravuth Sirinorakul
  • Patent number: 8685794
    Abstract: A package includes a first plated area, a second plated area, a die attached to the first plated area, and a bond coupling the die to the second plated area. The package further includes a molding encapsulating the die, the bond, and the top surfaces of the first and second plated areas, such that the bottom surfaces of the first and second plated areas are exposed exterior to the package. Additional embodiments include a method of making the package.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: April 1, 2014
    Assignee: UTAC Thai Limited
    Inventors: Somchai Nondhasitthichai, Saravuth Sirinorakul, Kasemsan Kongthaworn, Vorajit Suwannaset
  • Patent number: 8652879
    Abstract: A package includes a first plated area, a second plated area, a die attached to the first plated area, and a bond coupling the die to the second plated area. The package further includes a molding encapsulating the die, the bond, and the top surfaces of the first and second plated areas, such that the bottom surfaces of the first and second plated areas are exposed exterior to the package. Additional embodiments include a method of making the package.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: February 18, 2014
    Assignee: UTAC Thai Limited
    Inventors: Somchai Nondhasitthichai, Saravuth Sirinorakul, Kasemsan Kongthaworn, Vorajit Suwannaset
  • Patent number: 8648474
    Abstract: A package includes a first plated area, a second plated area, a die attached to the first plated area, and a bond coupling the die to the second plated area. The package further includes a molding encapsulating the die, the bond, and the top surfaces of the first and second plated areas, such that the bottom surfaces of the first and second plated areas are exposed exterior to the package. Additional embodiments include a method of making the package.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: February 11, 2014
    Assignee: UTAC Thai Limited
    Inventors: Somchai Nondhasittichai, Saravuth Sirinorakul
  • Publication number: 20140015117
    Abstract: A package and method of making thereof. The package includes a first plated area, a second plated area, a die, a bond, and a molding. The die is attached to the first plated area, and the bond couples the die to the first and/or the second plated areas. The molding encapsulates the die, the bonding wire, and the top surfaces of the first and second plated areas, such that the bottom surfaces of the first and second plated areas are exposed exterior to the package.
    Type: Application
    Filed: August 19, 2013
    Publication date: January 16, 2014
    Applicant: UTAC Thai Limited
    Inventors: Somchai Nondhasitthichai, Saravuth Sirinorakul
  • Publication number: 20140008777
    Abstract: Embodiments of the present invention are directed to a thermal leadless array package with die attach pad locking feature and methods of producing the same. A copper layer is half-etched on both surfaces to define an array of package contacts and a die attach pad. Each die attach pad is fully embedded in encapsulate material to provide a positive mechanical locking feature for better reliability. In some embodiments, the contacts include four active corner contacts.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 9, 2014
    Applicant: UTAC DONGGUAN LTD
    Inventors: Albert LOH, Edward THEN, Serafin PEDRON, JR., Saravuth Sirinorakul
  • Publication number: 20130337609
    Abstract: A package includes a first plated area, a second plated area, a die attached to the first plated area, and a bond coupling the die to the second plated area. The package further includes a molding encapsulating the die, the bond, and the top surfaces of the first and second plated areas, such that the bottom surfaces of the first and second plated areas are exposed exterior to the package. Additional embodiments include a method of making the package.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 19, 2013
    Applicant: UTAC Thai Limited
    Inventors: Somchai Nondhasitthichai, Saravuth Sirinorakul, Kasemsan Kongthaworn, Vorajit Suwannaset
  • Publication number: 20130302944
    Abstract: A method of fabricating a semiconductor package includes forming a plurality of terminals on a sheet carrier, molding the sheet carrier with a first molding compound, creating electrical paths for a first routing layer, plating the first routing layer, placing dice on the first routing layer, encapsulating the dice with a second molding compound, removing at least a portion of the sheet carrier, and singulating the package from other packages.
    Type: Application
    Filed: March 26, 2013
    Publication date: November 14, 2013
    Applicant: UTAC Thai Limited
    Inventors: Saravuth Sirinorakul, Suebphong Yenrudee
  • Publication number: 20130299980
    Abstract: A semiconductor package includes terminals extending from a bottom surface of the semiconductor package, and a layer of interconnection routings disposed within the semiconductor package. Each terminal includes a first plated section, a second plated section, and a portion of a sheet carrier from which the semiconductor package is built upon, wherein the portion is coupled between the first and second plated sections. Each interconnection routing is electrically coupled with a terminal and can extend planarly therefrom. The semiconductor package also includes at least one die coupled with the layer of interconnection routings. In some embodiments, the semiconductor package also includes at least one intermediary layer, each including a via layer and an associated routing layer. The semiconductor package includes a locking mechanism for fastening a package compound with the interconnection routings and the terminals.
    Type: Application
    Filed: March 27, 2013
    Publication date: November 14, 2013
    Applicant: UTAC Thai Limited
    Inventors: Saravuth Sirinorakul, Suebphong Yenrudee
  • Publication number: 20130299979
    Abstract: A semiconductor package includes terminals, each having an exposed surface that is flush with a bottom surface of the semiconductor package, and a layer of interconnection routings disposed within the semiconductor package. At least one interconnection routing is electrically coupled with a terminal and extends planarly therefrom. The semiconductor package also includes at least one die coupled with the layer of interconnection routings. In some embodiments, the semiconductor package also includes one or more additional intermediary layers. Each intermediary layer includes a via layer and an associated routing layer. The associated routing layer includes associated routings. At least one associated routing is electrically coupled with a terminal and extends planarly therefrom. Each via layer couples two routing layers. The semiconductor package also includes a locking mechanism for fastening a package compound with the interconnection routings and the terminals.
    Type: Application
    Filed: March 26, 2013
    Publication date: November 14, 2013
    Applicant: UTAC Thai Limited
    Inventor: Saravuth Sirinorakul