Patents by Inventor Xinhui Wang

Xinhui Wang 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: 7049247
    Abstract: A method for fabricating a thermally stable ultralow dielectric constant film comprising Si, C, O and H atoms in a parallel plate chemical vapor deposition process utilizing a plasma enhanced chemical vapor deposition (“PECVD”) process is disclosed. Electronic devices containing insulating layers of thermally stable ultralow dielectric constant materials that are prepared by the method are further disclosed. To enable the fabrication of a thermally stable ultralow dielectric constant film, specific precursor materials are used, such as, silane derivatives, for instance, diethoxymethylsilane (DEMS) and organic molecules, for instance, bicycloheptadiene and cyclopentene oxide.
    Type: Grant
    Filed: May 3, 2004
    Date of Patent: May 23, 2006
    Assignee: International Business Machines Corporation
    Inventors: Stephen M. Gates, Alfred Grill, David R. Medeiros, Deborah Neumayer, Son Van Nguyen, Vishnubhai V. Patel, Xinhui Wang
  • Patent number: 6998237
    Abstract: The present invention provides peptide mimics for GD3 ganglioside. The peptide mimics were identified by panning phage display peptide libraries with an anti-GD3 monoclonal antibody. The peptide mimics inhibit the binding of an anti-GD3 antibody to GD3 positive cells and also elicit antibodies which can bind to GD3 positive cells. The identified peptide mimics can be used as immunogens for cancer therapy.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: February 14, 2006
    Assignee: Health Research, Inc.
    Inventors: Soldano Ferrone, Xinhui Wang, Jeff Chi-Feng Hsu, Chun-Yen Tsao, Wei Luo
  • Publication number: 20050245096
    Abstract: A method for fabricating a thermally stable ultralow dielectric constant film comprising Si, C, O and H atoms in a parallel plate chemical vapor deposition process utilizing a plasma enhanced chemical vapor deposition (“PECVD”) process is disclosed. Electronic devices containing insulating layers of thermally stable ultralow dielectric constant materials that are prepared by the method are further disclosed. To enable the fabrication of a thermally stable ultralow dielectric constant film, specific precursor materials are used, such as, silane derivatives, for instance, diethoxymethylsilane (DEMS) and organic molecules, for instance, bicycloheptadiene and cyclopentene oxide.
    Type: Application
    Filed: May 3, 2004
    Publication date: November 3, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stephen Gates, Alfred Grill, David Medeiros, Deborah Neumayer, Son Nguyen, Vishnubhai Patel, Xinhui Wang
  • Patent number: 6939948
    Abstract: The present invention provides peptide mimics for GD2 ganglioside. The peptide mimics were identified by panning phage display peptide libraries with an anti-GD2 monoclonal antibody. The identified peptide mimics can be used as immunogens for cancer therapy such as for melanoma and neuroblastoma.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: September 6, 2005
    Assignees: Health Research, Inc., Sloan Kettering Institute for Cancer Research
    Inventors: Soldano Ferrone, Chun-Yen Tsao, Xinhui Wang, Wei Luo, Nai-Kong V. Cheung
  • Patent number: 6899784
    Abstract: An apparatus for measuring ammonia gas concentration in an ongoing chemical mechanical polishing (CMP) cycle utilizing an acidic CMP slurry, having the following components: a. A transferring means to collect a sample of the acidic CMP slurry; b. A converting means to convert the acidic CMP slurry to a basic slurry; c. A measuring means to measure the ammonia gas present in the basic slurry; d. A detection means to signal the end of an ongoing CMP cycle.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: May 31, 2005
    Assignees: International Business Machines Corporation, EcoPhysics AG
    Inventors: Leping Li, Steven G. Barbee, Scott R. Cline, James A. Gilhooly, Walter Imfeld, Werner Moser, Adrian Siegrist, Heinz Stunzi, Xinhui Wang, Cong Wei
  • Patent number: 6878629
    Abstract: An apparatus for measuring ammonia gas concentration in an ongoing mechanical polishing (CMP) cycle utilizing an acidic CMP slurry, having the following components: a. A transferring means to collect a sample of the acidic CMP slurry; b. A converting means to convert the acidic CMP slurry to a basic slurry; c. A measuring means to measure the ammonia gas present in the basic slurry; d. A detection means to signal the end of an ongoing CMP cycle.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: April 12, 2005
    Assignee: International Business Machines Corporation
    Inventors: Leping Li, Steven G. Barbee, Scott R. Cline, James A. Gilhooly, Xinhui Wang, Cong Wei
  • Patent number: 6835117
    Abstract: A chemical-mechanical polishing (CMP) system and method includes pumping polishing slurry from a CMP apparatus through a sampling tube to an endpoint detection apparatus during a polishing operation, and flushing the sampling tube while a polishing operation is not in progress. The flushing of the sampling tube is commenced in accordance with a control signal from the endpoint detection apparatus terminating the polishing operation; the flushing is terminated in accordance with a starting signal to the CMP apparatus. The pump, which pumps a sample of slurry into the endpoint detection apparatus, continuously pumps slurry and/or water. Clogging of the slurry sampling tube is thus eliminated, thereby ensuring robust operation of the CMP apparatus. Contamination of the sampling tube is also avoided, so that the system may reliably provide sensitive endpoint detection and process control, even when a film of low pattern density is polished.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: December 28, 2004
    Assignee: International Business Machines Corporation
    Inventors: Xinhui Wang, Leping Li, Yingru Gu, Hung-Chin Guthrie
  • Patent number: 6741913
    Abstract: A method is described for noise reduction in a CMP endpoint detection system employing torque measurement. The torque signals are acquired using an adjustable sampling rate and sample size, and averaged using a moving array of adjustable size. By introducing these three adjustable quantities in the torque-based endpoint control algorithm and properly setting their values in the endpoint detection recipe, periodic noise associated with carrier rotation and carrier oscillation can be effectively removed. This in turn permits reliable, closed-loop control of the CMP process.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: May 25, 2004
    Assignee: International Business Machines Corporation
    Inventors: Xinhui Wang, Yingru Gu, Leping Li
  • Publication number: 20030109194
    Abstract: A method is described for noise reduction in a CMP endpoint detection system employing torque measurement. The torque signals are acquired using an adjustable sampling rate and sample size, and averaged using a moving array of adjustable size. By introducing these three adjustable quantities in the torque-based endpoint control algorithm and properly setting their values in the endpoint detection recipe, periodic noise associated with carrier rotation and carrier oscillation can be effectively removed. This in turn permits reliable, closed-loop control of the CMP process.
    Type: Application
    Filed: December 11, 2001
    Publication date: June 12, 2003
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Xinhui Wang, Yingru Gu, Leping Li
  • Patent number: 6213846
    Abstract: A method is provided for detecting the endpoint of a film removal process such as chemical-mechanical polishing (CMP). The process uses a device having a shaft, and friction in the film removal causes torque on the shaft. Two axially displaced reflecting portions are provided on the shaft. Light reflected from these portions generates first and second reflected signals, respectively. A phase difference between the reflected signals is detected, and an output signal is generated in accordance therewith. A change in the output signal indicates a change in deformation of the shaft resulting from change in the torque, thereby indicating the endpoint of the film removal process.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: April 10, 2001
    Assignee: International Business Machines Corporation
    Inventors: Leping Li, Xinhui Wang