Patents Examined by Walter Swanson
  • Patent number: 7473571
    Abstract: There is provided a method for manufacturing a vertically structured LED capable of performing a chip separation process with ease. In the method, a light-emitting structure is formed on a growth substrate having a plurality of device regions and at least one device isolation region, wherein the light-emitting structure has an n-type clad layer, an active layer and a p-type clad layer which are disposed on the growth substrate in sequence. A p-electrode is formed on the light-emitting structure. Thereafter, a first plating layer is formed on the p-electrode such that it connects the plurality of device isolation regions. A pattern of a second plating layer is formed on the first plating layer of the device region. The growth substrate is removed, and an n-electrode is then formed on the n-type clad layer.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: January 6, 2009
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hae Yeon Hwang, Yung Ho Ryu, Da Mi Shim, Se Hwan Ahn
  • Patent number: 7432601
    Abstract: A semiconductor package mainly includes a chip, a substrate, an encapsulant, a plurality of external terminals and a stress release layer. The substrate has an upper surface and a lower surface. The chip is disposed on the upper surface of the substrate by a chip-attached layer and electrically connected to the substrate. The encapsulant is formed above the upper surface of the substrate. The external terminals are disposed on the lower surface of the substrate. The stress release layer is formed on the interface of the substrate and the encapsulant such that the external terminals are movable with respect to the encapsulated chip. In addition, a fabrication process of the semiconductor package is also disclosed.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: October 7, 2008
    Assignee: Powertech Technology Inc.
    Inventor: Cheng-Pin Chen
  • Patent number: 7364992
    Abstract: A method of forming a polycrystalline silicon thin film with improved electrical characteristics and a method of manufacturing a thin film transistor using the method of forming the polycrystalline silicon thin film.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: April 29, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-byum Kim, Se-jin Chung
  • Patent number: 7351622
    Abstract: A method of forming a semiconductor device includes forming a three-dimensional structure formed of a semiconductor on a semiconductor substrate, and isotropically doping the three-dimensional structure by performing a plasma doping process using a first source gas and a second source gas. The first source gas includes n-type or p-type impurity elements, and the second source gas includes a dilution element regardless of the electrical characteristic of a doped region.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: April 1, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gyoung-Ho Buh, Chang-Woo Ryoo, Yu-Gyun Shin, Tai-Su Park, Jin-Wook Lee
  • Patent number: 7300844
    Abstract: A method of forming a gate of a flash memory device, including the steps of forming a tunnel oxide film and a first polysilicon layer in an active region of a semiconductor substrate, an isolation film in the field region, a dielectric layer, a second polysilicon layer, a metal silicide film, and a hard mask film on the structure, etching the hard mask film, the metal silicide film, and a given region of the second polysilicon layer to expose the dielectric layer, stripping a top surface of the exposed dielectric layer of the active region and the field region, a part of the first polysilicon layer of the active region to form dielectric layer horns, the first polysilicon layer and a part of the dielectric layer horns of the active region, and the first polysilicon layer and the dielectric layer horns of the active region.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: November 27, 2007
    Assignee: Hynix Semiconductor Inc.
    Inventor: Chan Sun Hyun