Patents by Inventor Yun Yu

Yun Yu 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: 7179760
    Abstract: The present invention relates to a bilayer cap structure for interconnect structures that comprise copper metallization or other conductive metallization. Such bilayer cap structure includes a first cap layer formed by an unbiased high density plasma (HDP) chemical vapor deposition process, and a second cap layer over the first cap layer, where the second cap layer is formed by a biased high density plasma (bHDP) chemical vapor deposition process. During the bHDP chemical vapor deposition process, a low AC bias power is applied to the substrate to increase the ion bombardment on the substrate surface and to induce resputtering of the capping material, thereby forming a seamless second cap layer with excellent reactive ion etching (RIE) selectivity.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: February 20, 2007
    Assignee: International Buisness Machines Corporation
    Inventors: Richard A. Conti, Thomas F. Houghton, Michael F. Lofaro, Jeffery B. Maxson, Ann H. McDonald, Yun-Yu Wang, Keith Kwong Hon Wong, Daewon Yang
  • Publication number: 20070020929
    Abstract: A method for reducing dendrite formation in a self-aligned, silicide process for a semiconductor device includes forming a silicide metal layer over a semiconductor substrate, the semiconductor device having one or more diffusion regions, one or more isolation areas and one or more gate structures formed thereon. The concentration of metal rich portions of the metal layer is reduced through the introduction of silicon thereto, and the semiconductor device is annealed.
    Type: Application
    Filed: July 28, 2006
    Publication date: January 25, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Robert Purtell, Yun-Yu Wang, Keith Wong
  • Publication number: 20070010093
    Abstract: Silicide is protected during MC RIE etch by first forming an oxide film over the silicide and, after performing MC RIE etch, etching the oxide film. The oxide film is formed from a film of alloyed metal-silicon (M-Si) on the layer of silicide, then wet etching the metal-silicon. An ozone plasma treatment process can be an option to densify the oxide film. The oxide film may be etched by oxide RIE or wet etch, using 500:1 DHF.
    Type: Application
    Filed: July 6, 2005
    Publication date: January 11, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Yun-Yu Wang, Christian Lavoie, Kevin Mello, Conal Murray, Matthew Oonk
  • Publication number: 20070003614
    Abstract: Disclosed are pharmaceutical compositions comprising an active vitamin D compound in emulsion pre-concentrate formulations, as well as emulsions and sub-micron droplet emulsions produced therefrom. The compositions comprise a lipophilic phase component, one or more surfactants, and an active vitamin D compound. The compositions may optionally further comprise a hydrophilic phase component.
    Type: Application
    Filed: September 7, 2006
    Publication date: January 4, 2007
    Inventors: Andrew Chen, Jun Fan, Xi-Yun Yu, Martha Whitehouse
  • Publication number: 20070004206
    Abstract: A cap nitride stack which prevents etch penetration to the HDP nitride while maintaining the electromigration benefits of HDP nitride atop Cu. In one embodiment, the stack comprises a first layer of HDP nitride and a second layer of a Si—C—H compound disposed over the first layer. The Si—C—H compound is for example BLoK, or N-BLoK (Si—C—H—N), and is selected from a group of materials that has high selectivity during via RIE such that RIE chemistry from the next wiring level does not punch through. Carbon and nitrogen are the key elements. In another embodiment, the stack comprises a first layer of HDP nitride, followed by a second layer of UVN (a plasma nitride), and a third layer comprising HDP nitride disposed over the second layer.
    Type: Application
    Filed: August 28, 2006
    Publication date: January 4, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Yun-Yu Wang, Richard Conti, Chung-Ping Eng, Matthew Nicholls
  • Publication number: 20060292852
    Abstract: An interconnect structure in the back end of the line of an integrated circuit forms contacts between successive layers by removing material in the top surface of the lower interconnect in a cone-shaped aperture, the removal process extending through the liner of the upper aperture, and depositing a second liner extending down into the cone-shaped aperture, thereby increasing the mechanical strength of the contact, which then enhance the overall reliability of the integrated circuit.
    Type: Application
    Filed: August 9, 2006
    Publication date: December 28, 2006
    Applicants: INTERNATIONAL BUSINESS MACHINES CORPORATION, INFINEON TECHNOLOGIES NORTH AMERICA CORP.
    Inventors: Lawrence Clevenger, Andrew Cowley, Timothy Dalton, Mark Hoinkis, Steffen Kaldor, Erdem Kaltalioglu, Kaushik Kumar, Douglas La Tulipe, Jochen Schacht, Andrew Simon, Terry Spooner, Yun-Yu Wang, Clement Wann, Chih-Chao Yang
  • Publication number: 20060284569
    Abstract: A driving circuit uses a plurality of transformers to provide currents for driving a plurality of LEDs associated with a plurality of current paths. Each transformer has two induction coils with a coil turn ratio between to the number of turns in each induction coil. One induction coil is used to provide an output current to a different current path and the other induction coil is connected to the corresponding induction coil of other transformers for forming a current loop. The output current of each transformer has a relationship with the output current of the other transformers depending on the coil turn ratios of the connected transformers. LEDs in red, blue and green colors can be connected to different current paths so that the brightness of the LEDs in each color can be determined by the current in a current path.
    Type: Application
    Filed: June 16, 2005
    Publication date: December 21, 2006
    Inventors: Chin-Der Wey, Ya-Yun Yu, Hsien-Jen Li, Yueh-Pao Lee
  • Publication number: 20060274024
    Abstract: A liquid crystal display (LCD) including a light emitting diode (LED) driving circuit and an LED module is provided. The LED module includes a plurality of LEDs. The LED driving circuit includes a transformer, a rectification circuit and a filter circuit. The transformer is used for outputting an AC voltage. The alternate current voltage is respectively rectified and filtered by the rectification circuit and the filter circuit, and then a direct current (DC) voltage level necessary for driving the LEDs is outputted accordingly.
    Type: Application
    Filed: November 7, 2005
    Publication date: December 7, 2006
    Inventors: Chin-Der Wey, Chia-Hung Sun, Ya-Yun Yu, Yi-Chun Yeh
  • Publication number: 20060270245
    Abstract: The present invention relates to a bilayer cap structure for interconnect structures that comprise copper metallization or other conductive metallization. Such bilayer cap structure includes a first cap layer formed by an unbiased high density plasma (HDP) chemical vapor deposition process, and a second cap layer over the first cap layer, where the second cap layer is formed by a biased high density plasma (bHDP) chemical vapor deposition process. During the bHDP chemical vapor deposition process, a low AC bias power is applied to the substrate to increase the ion bombardment on the substrate surface and to induce resputtering of the capping material, thereby forming a seamless second cap layer with excellent reactive ion etching (RIE) selectivity.
    Type: Application
    Filed: May 27, 2005
    Publication date: November 30, 2006
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Richard Conti, Thomas Houghton, Michael Lofaro, Jeffery Maxson, Ann McDonald, Yun-Yu Wang, Keith Wong, Daewon Yang
  • Patent number: 7138717
    Abstract: A cap nitride stack which prevents etch penetration to the HDP nitride while maintaining the electromigration benefits of HDP nitride atop Cu. In one embodiment, the stack comprises a first layer of HDP nitride and a second layer of a Si—C—H compound disposed over the first layer. The Si—C—H compound is for example BLoK, or N-BLoK (Si—C—H—N), and is selected from a group of materials that has high selectivity during via RIE such that RIE chemistry from the next wiring level does not punch through. Carbon and nitrogen are the key elements. In another embodiment, the stack comprises a first layer of HDP nitride, followed by a second layer of UVN (a plasma nitride), and a third layer comprising HDP nitride disposed over the second layer.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: November 21, 2006
    Assignee: International Business Machines Corporation
    Inventors: Yun-Yu Wang, Richard A. Conti, Chung-Ping Eng, Matthew C. Nicholls
  • Publication number: 20060254053
    Abstract: Disclosed are a damascene and dual damascene processes both of which incorporate the use of a release layer to remove trace amounts of residual material between metal interconnect lines. The release layer is deposited onto a dielectric layer. The release layer comprises an organic material, a dielectric material, a metal or a metal nitride. Trenches are etched into the dielectric layer. The trenches are lined with a liner and filled with a conductor. The conductor and liner materials are polished off the release layer. However, trace amounts of the residual material may remain. The release layer is removed (e.g., by an appropriate solvent or wet etching process) to remove the residual material. If the trench is formed such that the release layer overlaps the walls of the trench, then when the release layer is removed another dielectric layer can be deposited that reinforces the corners around the top of the metal interconnect line.
    Type: Application
    Filed: May 10, 2005
    Publication date: November 16, 2006
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kaushik Chanda, James Demarest, Ronald Filippi, Roy Iggulden, Edward Kiewra, Ping-Chuan Wang, Yun-Yu Wang
  • Patent number: 7129169
    Abstract: A method for forming a metal silicide contact for a semiconductor device includes forming a refractory metal layer over a substrate, including active and non-active area of said substrate, and forming a cap layer over the refractory metal layer. A counter tensile layer is formed over the cap layer, wherein the counter tensile layer is selected from a material such that an opposing directional stress is created between the counter tensile layer and the cap layer, with respect to a directional stress created between the refractory metal layer and the cap layer.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: October 31, 2006
    Assignee: International Business Machines Corporation
    Inventors: Bradley P. Jones, Christian Lavoie, Robert J. Purtell, Yun-Yu Wang, Keith Kwong Hon Wong
  • Patent number: 7122462
    Abstract: An interconnect structure in the back end of the line of an integrated circuit forms contacts between successive layers by removing material in the top surface of the lower interconnect in a cone-shaped aperture, the removal process extending through the liner of the upper aperture, and depositing a second liner extending down into the cone-shaped aperture, thereby increasing the mechanical strength of the contact, which then enhance the overall reliability of the integrated circuit.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: October 17, 2006
    Assignees: International Business Machines Corporation, Infineon Technologies, AG
    Inventors: Lawrence A. Clevenger, Andrew P. Cowley, Timothy J. Dalton, Mark Hoinkis, Steffen K. Kaldor, Erdem Kaltalioglu, Kaushik A. Kumar, Douglas C. La Tulipe, Jr., Jochen Schacht, Andrew H. Simon, Terry A. Spooner, Yun-Yu Wang, Clement H. Wann, Chih-Chao Yang
  • Patent number: 7109116
    Abstract: A method for reducing dendrite formation in a self-aligned, silicide process for a semiconductor device includes forming a silicide metal layer over a semiconductor substrate, the semiconductor device having one or more diffusion regions, one or more isolation areas and one or more gate structures formed thereon. The concentration of metal rich portions of the metal layer is reduced through the introduction of silicon thereto, and the semiconductor device is annealed.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: September 19, 2006
    Assignee: International Business Machines Corporation
    Inventors: Robert J. Purtell, Yun-Yu Wang, Keith Kwong Hon Wong
  • Patent number: 7102232
    Abstract: An interconnect structure in which the adhesion between an upper level low-k dielectric material, such as a material comprising elements of Si, C, O, and H, and an underlying diffusion capping dielectric, such as a material comprising elements of C, Si, N and H, is improved by incorporating an adhesion transition layer between the two dielectric layers. The presence of the adhesion transition layer between the upper level low-k dielectric and the diffusion barrier capping dielectric can reduce the chance of delamination of the interconnect structure during the packaging process. The adhesion transition layer provided herein includes a lower SiOx— or SiON-containing region and an upper C graded region. Methods of forming such a structure, in particularly the adhesion transition layer, are also provided.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: September 5, 2006
    Assignee: International Business Machines Corporation
    Inventors: Lawrence A. Clevenger, Stefanie R. Chiras, Timothy Dalton, James J. Demarest, Derren N. Dunn, Chester T. Dziobkowski, Philip L. Flaitz, Michael W. Lane, James R. Lloyd, Darryl D. Restaino, Thomas M. Shaw, Yun-Yu Wang, Chih-Chao Yang
  • Patent number: 7101315
    Abstract: A wrist exerciser includes a casing comprised of upper and lower casing members mounted together to form a substantially spherical shape. A rotor has opposite shafts rotatably received in the holes defined in the casing for rotatably supporting the rotor in the casing. Illumination elements are mounted on an outside surface of the rotor. A power source is fixed in the rotor for powering the illumination elements. A control circuit is in electrical connection with the power source and the illumination elements for selectively lighting the illumination elements. A transmission device is mounted in the rotor and has an interface circuit connected to the control circuit and a socket connector in connection with the interface circuit.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: September 5, 2006
    Inventors: Yun Yu Chuang, Ming Hung Lin
  • Patent number: 7102145
    Abstract: A method for enhancing spatial resolution of a transmission electron microscopy TEM) system configured for electron holography. In an exemplary embodiment, the method includes configuring a first lens to form an initial virtual source with respect to an incident parallel beam, the initial virtual source positioned at a back focal plane of said first lens. A second lens is configured to form an intermediate virtual source with respect to the incident parallel beam, the position of said intermediate virtual source being dependent upon a focal length of the first lens and a focal length of the second lens. A third lens is configured to form a final virtual source with respect to the incident parallel beam, wherein the third lens has a focal length such that a front focal plane of the third lens lies beyond the position of the intermediate virtual source, with respect to a biprism location.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: September 5, 2006
    Assignee: International Business Machines Corporation
    Inventors: Anthony G. Domenicucci, Yun-Yu Wang
  • Patent number: 7102234
    Abstract: A method of reducing the contact resistance of metal silicides to the p+ silicon area or the n+ silicon area of the substrate comprising: (a) forming a metal germanium (Ge) layer over a silicon-containing substrate, wherein said metal is selected from the group consisting of Co, Ti, Ni and mixtures thereof; (b) optionally forming an oxygen barrier layer over said metal germanium layer; (c) annealing said metal germanium layer at a temperature which is effective in converting at least a portion thereof into a substantially non-etchable metal silicide layer, while forming a Si—Ge interlayer between said silicon-containing substrate and said substantially non-etchable metal silicide layer; and (d) removing said optional oxygen barrier layer and any remaining alloy layer. When a Co or Ti alloy is employed, e.g.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: September 5, 2006
    Assignee: International Business Machines Corporation
    Inventors: Cyril Cabral, Jr., Roy Arthur Carruthers, James McKell Edwin Harper, Christian Lavoie, Ronnen Andrew Roy, Yun Yu Wang
  • Patent number: 7101784
    Abstract: The invention provides a method of forming a wiring layer in an integrated circuit structure that forms an organic insulator, patterns the insulator, deposits a liner on the insulator, and exposes the structure to a plasma to form pores in the insulator in regions next to the liner. The liner is formed thin enough to allow the plasma to pass through the liner and form the pores in the insulator. During the plasma processing, the plasma passes through the liner without affecting the liner. After the plasma processing, additional liner material may be deposited. After this, a conductor is deposited and excess of portions of the conductor are removed from the structure such that the conductor only remains within patterned portions of the insulator. This method produces an integrated circuit structure that has an organic insulator having patterned features, a liner lining the patterned features, and a conductor filling the patterned features.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: September 5, 2006
    Assignee: International Business Machines Corporation
    Inventors: Lawrence A. Clevenger, Stephen E. Greco, Keith T. Kwietniak, Soon-Cheon Seo, Chih-Chao Yang, Yun-Yu Wang, Kwong H. Wong
  • Patent number: 7093894
    Abstract: A bicycle saddle includes a saddle shell, a frame and two pneumatic cushions. The saddle shell has a relatively narrower front end and a relatively wider rear end. The frame has a relatively narrower front end connected to a bottom side of the front end of the saddle shell, and a relatively wider rear end located below the rear end of the saddle shell. The pneumatic cushions are spacedly disposed between a bottom side of the rear end of the saddle shell and the rear end of the frame. The pneumatic cushions each have an enclosed chamber that is filled with gas.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: August 22, 2006
    Inventor: Tsai-Yun Yu