Patents by Inventor Heui Ahn

Heui Ahn 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: 20050141268
    Abstract: SRAM devices and methods of fabricating the same are disclosed, by which a process margin and a degree of device integration are enhanced by reducing the number of contact holes of an SRAM device unit cell using local interconnections. A disclosed example device includes first and second load elements; first and second drive transistors; a common gate electrode connected in one body to a gate electrode of the first load element and a gate electrode of the first drive transistor to apply a sync signal to the gate electrodes; the common gate electrode overlapping with a junction layer of the second load element and a junction layer region of the second drive transistor; the common gate electrode being electrically connected to an upper line via a plug in one contact hole.
    Type: Application
    Filed: December 29, 2004
    Publication date: June 30, 2005
    Inventor: Heui Ahn
  • Publication number: 20050142790
    Abstract: A method of fabricating a semiconductor device uses selective epitaxial growth (SEG), by which leakage current generation is minimized using lateral SEG growth in case a contact intrudes a shallow track isolation feature. The method includes steps of forming a sidewall spacer on a gate, selectively growing an epitaxial layer in a lateral direction relative to the sidewall spacer and the gate, and forming a contact on the epitaxial layer.
    Type: Application
    Filed: December 30, 2004
    Publication date: June 30, 2005
    Applicant: DongbuAnam Semiconductor Inc.
    Inventor: Heui Ahn
  • Publication number: 20050142797
    Abstract: Methods of forming a device isolation layer in a semiconductor substrate are disclosed. A disclosed method includes: forming a trench in a field area of a semiconductor substrate, growing a SiON layer on an inside of the trench by annealing in an ambience of NO gas, and filling the trench with a trench-fill material.
    Type: Application
    Filed: December 23, 2004
    Publication date: June 30, 2005
    Inventor: Heui Ahn