Patents by Inventor Xu Ouyang

Xu Ouyang 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: 8742782
    Abstract: An on-chip technique for noncontact electrical testing of a test structure on a chip is provided. On-chip photodiodes receives pump light from a pump light source, where the on-chip photodiodes are electrically connected to the test structure and are configured to generate power for the test structure. An on-chip coupling unit receives probe light from a probe light source, where the on-chip coupling unit is optically connected to on-chip waveguides through which the probe light is transferred. On-chip switches open in response to receiving voltage output from the test structure, and the on-chip switches remain closed when the voltage output is not received from the test structure. The on-chip switches pass the probe light when opened by the voltage output from the test structure. The on-chip switches block the probe light by remaining closed, when the voltage output is not received from the test structure.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: June 3, 2014
    Assignee: International Business Machines Corporation
    Inventors: Xu Ouyang, Tso-Hui Ting, Ping-Chuan Wang, Yongchun Xin
  • Publication number: 20140016201
    Abstract: This disclosure is directed to an improved process for making glass articles having optical coating and easy-to clean coating thereon, an apparatus for the process and a product made using the process. In particular, the disclosure is directed to a process in which the application of the optical coating and the easy-to-clean coating can be sequentially applied using a single apparatus. Using the combination of the coating apparatus and the substrate carrier described herein results in a glass article having both optical and easy-to-clean coating that have improved scratch resistance durability and optical performance, and in addition the resulting articles are “shadow free.
    Type: Application
    Filed: September 10, 2013
    Publication date: January 16, 2014
    Applicant: CORNING INCORPORATED
    Inventors: Christopher Morton Lee, Xiao-feng Lu, Michael Xu Ouyang, Junhong Zhang
  • Patent number: 8619365
    Abstract: Multilayer anti-reflective coatings having four or more layers are disclosed. In one aspect, the multilayer anti-reflective coating comprises a first layer having a refractive index n1, where n1<1.4, and an optical thickness of (0.25±5%) ?o nm; a second layer adjacent to the first layer, the second layer having a refractive index n2, where n2?1.8, and an optical thickness of (0.5±5%) ?o nm; a third layer adjacent to the second layer, the third layer having a refractive index n3, where 1.4?n3<1.6, and an optical thickness of (0.1±5%) ?o nm; and a fourth layer adjacent to the third layer, the fourth layer having a refractive index n4, where n4?1.8, and an optical thickness of (0.05±10%) ?o nm; where ?o is a wavelength in the visible light range.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: December 31, 2013
    Assignee: Corning Incorporated
    Inventors: Michael David Harris, Christopher Morton Lee, Lawrence George Mann, Mike Xu Ouyang
  • Publication number: 20130334031
    Abstract: A process in which both an optical coating, for example, an AR coating, and an ETC coating are deposited on a glass substrate article, in sequential steps, with the optical coating being deposited first and the ETC coating being deposited second, using the same apparatus and without exposing the article to the atmosphere at any time during the application of the optical coating and ETC coating.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 19, 2013
    Inventors: Christopher Morton Lee, Xiao-feng Lu, Michael Xu Ouyang, Junhong Zhang
  • Publication number: 20130263784
    Abstract: This disclosure is directed to an improved process for making glass articles having optical coating and easy-to clean coating thereon, an apparatus for the process and a product made using the process. In particular, the disclosure is directed to a process in which the application of the optical coating and the easy-to-clean coating can be sequentially applied using a single apparatus. Using the combination of the coating apparatus and the substrate carrier described herein results in a glass article having both optical and easy-to-clean coating that have improved scratch resistance durability and optical performance, and in addition the resulting articles are “shadow free.
    Type: Application
    Filed: May 30, 2013
    Publication date: October 10, 2013
    Inventors: Christopher Morton Lee, Xiao-feng Lu, Michael Xu Ouyang, Junhong Zhang
  • Publication number: 20130260530
    Abstract: A modularized capacitor array includes a plurality of capacitor modules. Each capacitor module includes a capacitor and a switching device that is configured to electrically disconnect the capacitor. The switching device includes a sensing unit configured to detect the level of leakage of the capacitor so that the switching device disconnects the capacitor electrically if the leakage current exceeds a predetermined level. Each capacitor module can include a single capacitor plate, two capacitor plates, or more than two capacitor plates. The leakage sensors and switching devices are employed to electrically disconnect any capacitor module of the capacitor array that becomes leaky, thereby protecting the capacitor array from excessive electrical leakage.
    Type: Application
    Filed: May 30, 2013
    Publication date: October 3, 2013
    Applicant: International Business Machines Corporation
    Inventors: Louis L. Hsu, Xu Ouyang, Chih-Chao Yang
  • Patent number: 8487696
    Abstract: A modularized capacitor array includes a plurality of capacitor modules. Each capacitor module includes a capacitor and a switching device that is configured to electrically disconnect the capacitor. The switching device includes a sensing unit configured to detect the level of leakage of the capacitor so that the switching device disconnects the capacitor electrically if the leakage current exceeds a predetermined level. Each capacitor module can include a single capacitor plate, two capacitor plates, or more than two capacitor plates. The leakage sensors and switching devices are employed to electrically disconnect any capacitor module of the capacitor array that becomes leaky, thereby protecting the capacitor array from excessive electrical leakage.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: July 16, 2013
    Assignee: International Business Machines Corporation
    Inventors: Louis L. Hsu, Xu Ouyang, Chih-Chao Yang
  • Patent number: 8489225
    Abstract: A system for performing alignment of two wafers is disclosed. The system comprises an optical coherence tomography system and a wafer alignment system. The wafer alignment system is configured and disposed to control the relative position of a first wafer and a second wafer. The optical coherence tomography system is configured and disposed to compute coordinate data for a plurality of alignment marks on the first wafer and second wafer, and send that coordinate data to the wafer alignment system.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: July 16, 2013
    Assignee: International Business Machines Corporation
    Inventors: Yongchun Xin, Xu Ouyang, Yunsheng Song, Tso-Hui Ting
  • Publication number: 20130169308
    Abstract: A test structure for an integrated circuit device includes a series inductor, capacitor, resistor (LCR) circuit having one or more inductor elements, with each inductor element having at least one unit comprising a first segment formed in a first metal layer, a second segment connecting the first metal layer to a semiconductor substrate beneath the first metal layer, and a third segment formed in the semiconductor substrate; and a capacitor element connected in series with each inductor element, the capacitor element defined by a transistor gate structure including a gate electrode as a first electrode, a gate dielectric layer, and the semiconductor substrate as a second electrode.
    Type: Application
    Filed: January 4, 2012
    Publication date: July 4, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Xu Ouyang, Yunsheng Song, Tso-Hui Ting, Yongchun Xin
  • Publication number: 20130135741
    Abstract: This disclosure is directed to an improved process for making glass articles having optical coating and easy-to clean coating thereon, an apparatus for the process and a product made using the process. In particular, the disclosure is directed to a process in which the application of the optical coating and the easy-to-clean coating can be sequentially applied using a single apparatus. Using the combination of the coating apparatus and the substrate carrier described herein results in a glass article having both optical and easy-to-clean coating that have improved scratch resistance durability and optical performance, and in addition the resulting articles are “shadow free.
    Type: Application
    Filed: November 30, 2012
    Publication date: May 30, 2013
    Inventors: Christopher Morton Lee, Xiao-feng Lu, Michael Xu Ouyang, Junhong Zhang
  • Patent number: 8369976
    Abstract: A method for increasing overall yield in semiconductor manufacturing including routing wafers or wafer lots from tool to tool in a manner which at least partially neutralizes or compensates for processing variations. A system for increasing overall yield in semiconductor manufacturing includes a module for recording processing data from plural first and second types of tools and a module for routing wafers or wafer lots from tools of the first type of tools to tools of the second type of tools so as to at least partially neutralizes or compensate for processing variation.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: February 5, 2013
    Assignee: International Business Machines Corporation
    Inventors: Keith Kwong Hon Wong, Xu Ouyang, Yunsheng Song
  • Publication number: 20130027051
    Abstract: An on-chip technique for noncontact electrical testing of a test structure on a chip is provided. On-chip photodiodes receives pump light from a pump light source, where the on-chip photodiodes are electrically connected to the test structure and are configured to generate power for the test structure. An on-chip coupling unit receives probe light from a probe light source, where the on-chip coupling unit is optically connected to on-chip waveguides through which the probe light is transferred. On-chip switches open in response to receiving voltage output from the test structure, and the on-chip switches remain closed when the voltage output is not received from the test structure. The on-chip switches pass the probe light when opened by the voltage output from the test structure. The on-chip switches block the probe light by remaining closed, when the voltage output is not received from the test structure.
    Type: Application
    Filed: July 27, 2011
    Publication date: January 31, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Xu Ouyang, Tso-Hui Ting, Ping-Chuan Wang, Yongchun Xin
  • Publication number: 20130016895
    Abstract: A system and method for fail pattern analysis for a memory device is disclosed. The peripheral circuits of a memory device are divided into different zones based on circuit design and layout. Defects are detected by inline inspection of multiple SRAM devices at various stages in the manufacturing process and saved into a database. When the devices are fabricated, electrical tests are then performed. Electrical failure patterns are also recorded and saved in the database. A correlation between the zone in which a visual defect resides and an electrical failure is recorded in computer storage. Visual defects found during inline inspection are then associated with an electrical failure in the memory device.
    Type: Application
    Filed: July 15, 2011
    Publication date: January 17, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Zhigang Song, Xu Ouyang, Yunsheng Song
  • Patent number: 8347246
    Abstract: A method for laying out process dummy cells in relationship to inside memory cells of a memory array includes (a) calculating an initial process performance parameter for the memory array; (b) changing dummy cell layout configuration for a layer electrically connected to inside cells; (c) applying lithographic simulation and yield model for both the inside memory cells and the changed layout configuration process dummy cells; and (d) repeating steps (b) and (c) until yield is maximized. Checks may be performed to ensure that there is enough room to make the change and that there is no significant adverse effect to neighboring circuits. The process performance parameter may be yield or a process window for the inside memory cells.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 1, 2013
    Assignee: International Business Machines Corporation
    Inventors: Xu Ouyang, Geng Han, Lars W. Liebmann
  • Patent number: 8339893
    Abstract: A static random access memory (SRAM) cell includes a first read port, the first read port having a first beta ratio; and a write port, the write port having a second beta ratio that is substantially lower than the first beta ratio. A static random access memory (SRAM) array includes a plurality of SRAM cells, an SRAM cell including a first read port, the first read port having a first beta ratio; and a write port, the write port having a second beta ratio that is substantially lower than the first beta ratio.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: December 25, 2012
    Assignee: International Business Machines Corporation
    Inventors: Yuen H. Chan, Louis C. Hsu, Xu Ouyang, Robert C. Wong
  • Patent number: 8294485
    Abstract: A method of detecting low-probability defects in large transistor arrays (such as large arrays of SRAM cells), where the defects manifest themselves as asymmetrical leakage in a transistor (such as a pulldown nFET in an SRAM cell). These defects are detected by creating one or more test arrays, identical in all regards to the large transistor arrays up until the contact and metallization layers. Leakage is measured by applying an appropriate off-state voltage (e.g., 0V) by a common connection to all of the gates of the transistors in the test array, then measuring the aggregate drain/source leakage current, both forward and reverse (e.g., first grounded source and positively biased drain, then grounded drain and positively biased source) comparing the difference between the two leakage current measurements.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: October 23, 2012
    Assignee: International Business Machines Corporation
    Inventors: Xu Ouyang, Yun-Yu Wang, Yunsheng Song
  • Publication number: 20120232686
    Abstract: A system for performing alignment of two wafers is disclosed. The system comprises an optical coherence tomography system and a wafer alignment system. The wafer alignment system is configured and disposed to control the relative position of a first wafer and a second wafer.
    Type: Application
    Filed: March 8, 2011
    Publication date: September 13, 2012
    Applicant: International Business Machines Corporation
    Inventors: Yongchun Xin, Xu Ouyang, Yunsheng Song, Tso-Hui Ting
  • Publication number: 20120188002
    Abstract: A modularized capacitor array includes a plurality of capacitor modules. Each capacitor module includes a capacitor and a switching device that is configured to electrically disconnect the capacitor. The switching device includes a sensing unit configured to detect the level of leakage of the capacitor so that the switching device disconnects the capacitor electrically if the leakage current exceeds a predetermined level. Each capacitor module can include a single capacitor plate, two capacitor plates, or more than two capacitor plates. The leakage sensors and switching devices are employed to electrically disconnect any capacitor module of the capacitor array that becomes leaky, thereby protecting the capacitor array from excessive electrical leakage.
    Type: Application
    Filed: April 3, 2012
    Publication date: July 26, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Louis L. Hsu, Xu Ouyang, Chih-Chao Yang
  • Publication number: 20120192137
    Abstract: A method for laying out process dummy cells in relationship to inside memory cells of a memory array includes (a) calculating an initial process performance parameter for the memory array; (b) changing dummy cell layout configuration for a layer electrically connected to inside cells; (c) applying lithographic simulation and yield model for both the inside memory cells and the changed layout configuration process dummy cells; and (d) repeating steps (b) and (c) until yield is maximized. Checks may be performed to ensure that there is enough room to make the change and that there is no significant adverse effect to neighboring circuits. The process performance parameter may be yield or a process window for the inside memory cells.
    Type: Application
    Filed: March 30, 2012
    Publication date: July 26, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Xu Ouyang, Geng Han, Lars W. Liebmann
  • Publication number: 20120184076
    Abstract: A flash memory structure having an enhanced capacitive coupling coefficient ratio (CCCR) may be fabricated in a self-aligned manner while using a semiconductor substrate that has an active region that is recessed within an aperture with respect to an isolation region that surrounds the active region. The flash memory structure includes a floating gate that does not rise above the isolation region, and that preferably consists of a single layer that has a U shape. The U shape facilitates the enhanced capacitive coupling coefficient ratio.
    Type: Application
    Filed: March 26, 2012
    Publication date: July 19, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Louis C. Hsu, Xu Ouyang, Ping-Chuan Wang, Zhijian J. Yang