Patents by Inventor Chen-Hui Tsay

Chen-Hui Tsay 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: 20090273376
    Abstract: The present invention discloses AC/DC converters and methods of manufacturing the same. The method includes providing a substrate; forming an oxide layer on a top surface of the substrate; applying a photo-resist layer on the oxide layer to define a well region; performing an ion-implantation in the well region using a dopant; and driving in atoms of the dopant to a depth in the well region through a thermal treatment, wherein the driving in process provides a concentration profile of the dopant in the well region such that the semiconductor structure has a high breakdown voltage.
    Type: Application
    Filed: February 19, 2009
    Publication date: November 5, 2009
    Inventors: Siarhei KALODKA, Sergey Gaitukevich, Vitali Maziarkin, Alan Wang, Chen-Hui Tsay
  • Patent number: 6707140
    Abstract: A stacked molded package comprising a semiconductor package attached to an electronic device. The semiconductor package includes a semiconductor die which is connected to a set of wire leads and is encapsulated within a protective molding material. Additionally, solder bumps within the molding material are attached to input and output contact points on the semiconductor die. Portions of the solder bumps are exposed through the surface of the molding material so that contact can be made with the electrical contacts of an electronic device to be stacked upon the semiconductor package. The electronic device may be, for example, another semiconductor die or an opto-electronic transceiver. The present invention also includes a method for manufacturing the stacked molded package. The method involves forming the semiconductor package within a molding chamber which is injected with the protective molding material.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: March 16, 2004
    Assignee: National Semiconductor Corporation
    Inventors: Luu Nguyen, Cade Murray, Peter Deane, Chen-Hui Tsay
  • Patent number: 6364542
    Abstract: A low cost device that provides a true die to external fiber optic connection. The device includes a semiconductor die having a first surface, an integrate circuit fabricated on the first surface of the semiconductor die and a package encapsulating the semiconductor die. The device also includes a module mounted onto the package and configured to receive an external fiber optic cable. An opto-electric device, housed in the module is optically coupled to the fiber optic cable when the cable is inserted into the module. To provide the direct die to external fiber optic connection, at least one electrical conductor is provided between the integrated circuit fabricated the semiconductor die, through the package and module, and directly to the opto-electrical device.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: April 2, 2002
    Assignee: National Semiconductor Corporation
    Inventors: Peter Deane, Chen-Hui Tsay, Cade Murray, Luu Nguyen