Patents by Inventor Ellis Lee

Ellis Lee 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: 20020163082
    Abstract: An interconnect structure has a substrate having devices already formed thereon. A dielectric layer covers over the substrate. A conductive structure having at least two substructure separated by an air gap is formed on the dielectric layer. A capping layer covers the conductive structure and the air gap. The capping layer at a portion above the air gap also fills into the air gap by a predetermined distance. The air gap may also extend into the dielectric layer to have a greater height. An etching stop layer is formed on the capping layer. An inter-metal dielectric layer is formed on the etching stop layer. The inter-metal dielectric layer, the etching stop layer and the capping layer are patterned to form an opening that exposes a top surface of the conductive structure.
    Type: Application
    Filed: March 15, 2002
    Publication date: November 7, 2002
    Inventors: Ellis Lee, Shih-Wei Sun
  • Publication number: 20020099558
    Abstract: A system for speeding up an establishment's foundation through Internet comprises a data storage device having databases built therein and an electronic hub connected to the data storage device through computer program. The electronic hub is cooperated with the data storage device, whereby is capable to communicate, examine the resource provider, save the resource provider, and match the resource provider and whereby speeds up the establishment's foundation. A method for speeding up founding establishment through Internet comprises communicating, examining the resource provider, saving the resource provider, and matching the resource provider.
    Type: Application
    Filed: January 24, 2001
    Publication date: July 25, 2002
    Applicant: United Microelectronics Corp.
    Inventors: John Hsuan, Ellis Lee
  • Publication number: 20020014679
    Abstract: An interconnect is formed on the substrate. The conductive structure at least includes a first conductive structure and a second conductive structure, which have a gap region in-between. The substrate is exposed at the gap region. A first structured dielectric layer is formed over the substrate to cover the first and the second conductive structures. The first structured dielectric layer also has a void at the gap region between the first and the second conductive structures. The void significantly extends to the whole gap region. The first structured dielectric layer also has an indent region above the void. An anti-etch layer fills the indent region of the first structured dielectric layer As a result, the first structured dielectric layer has a substantially planar surface A second structured dielectric layer is formed on the first structured dielectric layer and the anti-etch layer.
    Type: Application
    Filed: October 5, 2001
    Publication date: February 7, 2002
    Inventors: Ellis Lee, Tsing-Fong Hwang
  • Publication number: 20010022403
    Abstract: An bonding pad structure has a passivation layer over a copper layer having a pad window to expose a portion of the copper layer, a barrier layer conformal to a profile of the pad window, and an aluminum pad located in the pad window. The metal layer can be an aluminum, aluminum alloy or aluminum dominated layer for providing a better adhesion property between the copper layer and the bonding wire.
    Type: Application
    Filed: May 23, 2001
    Publication date: September 20, 2001
    Inventors: Ellis Lee, Yimin Huang, Tri-Rung Yew
  • Publication number: 20010016412
    Abstract: An interconnect structure has a substrate having devices already formed thereon. A dielectric layer covers over the substrate. A conductive structure having at least two substructure separated by an air gap is formed on the dielectric layer. A capping layer covers the conductive structure and the air gap. The capping layer at a portion above the air gap also fills into the air gap by a predetermined distance. The air gap may also extend into the dielectric layer to have a greater height. An etching stop layer is formed on the capping layer. An inter-metal dielectric layer is formed on the etching stop layer. The inter-metal dielectric layer, the etching stop layer and the capping layer are patterned to form an opening that exposes a top surface of the conductive structure.
    Type: Application
    Filed: May 4, 2001
    Publication date: August 23, 2001
    Inventors: Ellis Lee, Shih-Wei Sun
  • Patent number: 6245635
    Abstract: A method of fabricating a shallow trench isolation includes formation of a polishing stop layer. The polishing stop layer is formed in a fill material by performing ion implantation to implant atoms in the fill material. The depth of the polishing stop layer can be controlled by the energy of the implanted atoms. The polishing stop layer prevents the fill material from being dished by chemical-mechanical polishing. The polishing stop layer also prevents scratches from forming in the surface of the fill material, which is used to form isolation regions.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: June 12, 2001
    Assignee: United Microelectronics Corp.
    Inventor: Ellis Lee
  • Patent number: 6171960
    Abstract: A method of fabricating copper interconnection is provided comprising forming a dielectric layer with a trench or a via on a semiconductor substrate. A titanium layer is formed on the dielectric layer. A copper layer doped with light silicon is formed in the trench or the via. The copper layer is encapsulated by annealing to make silicon doped in the copper layer diffuse toward the surface of the copper to react with the titanium layer and the gas. It prevents the copper layer from oxidation and diffusion to increase the yield.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: January 9, 2001
    Assignee: United Microelectronics Corp.
    Inventor: Ellis Lee
  • Patent number: 5933761
    Abstract: The present invention relates to a dual damascene structure and its manufacturing method. The invention uses two implanting step to form two stop layers. It uses the stop layers to perform an anisotropic etching step so as to form a via and trench. Finally, a conductive layer is filled into the via and trench followed by the completion of forming of the dual damascene structure. The invention controls the etching stop. Another advantage of the present invention is that of using the spacer as the trench mask instead of the multi-mask. Therefore, misalignment is prevented in the present invention.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: August 3, 1999
    Inventor: Ellis Lee