Patents by Inventor Zhong-Xiang He

Zhong-Xiang He 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: 20160111352
    Abstract: An approach to creating a semiconductor structure for a dielectric layer over a void area includes determining a location of a void area of the topographical semiconductor feature. A second dielectric layer is deposited on a first dielectric layer and a top surface of a topographical semiconductor feature. The second dielectric layer is patterned to one or more portions, wherein at least one portion of the patterned second dielectric layer is over the location of the void area of the topographical semiconductor feature. A first metal layer is deposited over the second dielectric layer, at least one portion of the first dielectric layer, and a portion of the top surface of the topographical semiconductor feature. A chemical mechanical polish of the first metal layer is performed, wherein the chemical mechanical polish reaches the top surface of at least one of the one or more portions of the second dielectric layer.
    Type: Application
    Filed: December 14, 2015
    Publication date: April 21, 2016
    Inventors: Daniel J. Couture, Jeffrey P. Gambino, Zhong-Xiang He, Anthony K. Stamper
  • Patent number: 9312140
    Abstract: A semiconductor structure with low resistance conduction paths and methods of manufacture are disclosed. The method includes forming at least one low resistance conduction path on a wafer, and forming an electroplated seed layer in direct contact with the low resistance conduction path.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: April 12, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jeffrey P. Gambino, Thomas J. Hartswick, Zhong-Xiang He, Anthony K. Stamper, Eric J. White
  • Patent number: 9287345
    Abstract: Disclosed are methods for forming a thin film resistor and terminal bond pad simultaneously. A method includes simultaneously forming a terminal bond pad on a terminal wire and a thin film resistor on two other wires.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: March 15, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Fen Chen, Jeffrey P. Gambino, Zhong-Xiang He, Tom C. Lee, John C. Malinowski, Anthony K. Stamper
  • Publication number: 20160071796
    Abstract: Structures and methods of making a dielectric region in a bulk silicon (Si) substrate of a mixed-signal integrated circuit (IC) provide a high-Q passive resonator. Deep trenches within the bulk Si substrate in <100> directions are expanded by wet etching to form contiguous cavities, which are filled by Si oxide to form a dielectric region. The dielectric region enhances the quality (Q) of an overlying passive resonator, formed in metallization layers of the mixed-signal IC.
    Type: Application
    Filed: November 19, 2015
    Publication date: March 10, 2016
    Inventors: James S. Dunn, Zhong-Xiang He, Qizhi Liu
  • Patent number: 9269666
    Abstract: Methods for planarizing layers of a material, such as a dielectric, and interconnect structures formed by the planarization methods. The method includes depositing a first dielectric layer on a top surface of multiple conductive features and on a top surface of a substrate between the conductive features. A portion of the first dielectric layer is selectively removed from the top surface of at least one of the conductive features without removing a portion the first dielectric layer that is between the conductive features. A second dielectric layer is formed on the top surface of the at least one of the conductive features and on a top surface of the first dielectric layer, and a top surface of the second dielectric layer is planarized. A layer operating as an etch stop is located between the top surface of at least one of the conductive features and the second dielectric layer.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: February 23, 2016
    Assignee: GLOBALFOUNDRIES, INC.
    Inventors: Zhong-Xiang He, Anthony K. Stamper, Eric J. White
  • Publication number: 20160035621
    Abstract: Approaches for fabricating copper wires in integrated circuits are provided. A method of manufacturing a semiconductor structure includes forming a wire opening in a mask. The method also includes electroplating a conductive material in the wire opening. The method additionally includes forming a cap layer on the conductive material. The method further includes removing the mask. The method still further includes forming spacers on sides of the conductive material. The method additionally includes forming a dielectric film on surfaces of the cap layer and the sidewall spacers.
    Type: Application
    Filed: October 14, 2015
    Publication date: February 4, 2016
    Inventors: Fen CHEN, Jeffrey P. GAMBINO, Zhong-Xiang HE, Trevor A. THOMPSON, Eric J. WHITE
  • Patent number: 9252080
    Abstract: An approach to creating a semiconductor structure for a dielectric layer over a void area includes determining a location of a void area of the topographical semiconductor feature. A second dielectric layer is deposited on a first dielectric layer and a top surface of a topographical semiconductor feature. The second dielectric layer is patterned to one or more portions, wherein at least one portion of the patterned second dielectric layer is over the location of the void area of the topographical semiconductor feature. A first metal layer is deposited over the second dielectric layer, at least one portion of the first dielectric layer, and a portion of the top surface of the topographical semiconductor feature. A chemical mechanical polish of the first metal layer is performed, wherein the chemical mechanical polish reaches the top surface of at least one of the one or more portions of the second dielectric layer.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: February 2, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Daniel J. Couture, Jeffrey P. Gambino, Zhong-Xiang He, Anthony K. Stamper
  • Patent number: 9230914
    Abstract: Approaches for fabricating copper wires in integrated circuits are provided. A method of manufacturing a semiconductor structure includes forming a wire opening in a mask. The method also includes electroplating a conductive material in the wire opening. The method additionally includes forming a cap layer on the conductive material. The method further includes removing the mask. The method still further includes forming spacers on sides of the conductive material. The method additionally includes forming a dielectric film on surfaces of the cap layer and the sidewall spacers.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: January 5, 2016
    Assignee: International Business Machines Corporation
    Inventors: Fen Chen, Jeffrey P. Gambino, Zhong-Xiang He, Trevor A. Thompson, Eric J. White
  • Patent number: 9230929
    Abstract: Wire-bonded semiconductor structures using organic insulating material and methods of manufacture are disclosed. The method includes forming a metal wiring layer in an organic insulator layer. The method further includes forming a protective layer over the organic insulator layer. The method further includes forming a via in the organic insulator layer over the metal wiring layer. The method further includes depositing a metal layer in the via and on the protective layer. The method further includes patterning the metal layer with an etch chemistry that is damaging to the organic insulator layer.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: January 5, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Timothy H. Daubenspeck, Jeffrey P. Gambino, Zhong-Xiang He, Christopher D. Muzzy, Wolfgang Sauter, Timothy D. Sullivan
  • Patent number: 9231046
    Abstract: A metal-insulator-metal (MIM) capacitor using barrier layer metallurgy and methods of manufacture are disclosed. The method includes forming a bottom plate of a metal-insulator-metal (MIM) capacitor and a bonding pad using a single masking process. The method further includes forming a MIM dielectric on the bottom plate. The method further includes forming a top plate of the MIM capacitor on the MIM dielectric. The method further includes forming a solder connection on the bonding pad.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 5, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Timothy H. Daubenspeck, Jeffrey P. Gambino, Zhong-Xiang He, Christopher D. Muzzy, Wolfgang Sauter
  • Publication number: 20150364368
    Abstract: A semiconductor structure with low resistance conduction paths and methods of manufacture are disclosed. The method includes forming at least one low resistance conduction path on a wafer, and forming an electroplated seed layer in direct contact with the low resistance conduction path.
    Type: Application
    Filed: August 21, 2015
    Publication date: December 17, 2015
    Inventors: Jeffrey P. GAMBINO, Thomas J. HARTSWICK, Zhong-Xiang HE, Anthony K. STAMPER, Eric J. WHITE
  • Publication number: 20150364416
    Abstract: A semiconductor structure with low resistance conduction paths and methods of manufacture are disclosed. The method includes forming at least one low resistance conduction path on a wafer, and forming an electroplated seed layer in direct contact with the low resistance conduction path.
    Type: Application
    Filed: August 21, 2015
    Publication date: December 17, 2015
    Inventors: Jeffrey P. GAMBINO, Thomas J. HARTSWICK, Zhong-Xiang HE, Anthony K. STAMPER, Eric J. WHITE
  • Publication number: 20150364367
    Abstract: A semiconductor structure with low resistance conduction paths and methods of manufacture are disclosed. The method includes forming at least one low resistance conduction path on a wafer, and forming an electroplated seed layer in direct contact with the low resistance conduction path.
    Type: Application
    Filed: August 21, 2015
    Publication date: December 17, 2015
    Inventors: Jeffrey P. GAMBINO, Thomas J. HARTSWICK, Zhong-Xiang HE, Anthony K. STAMPER, Eric J. WHITE
  • Publication number: 20150357295
    Abstract: Structures and methods of making a dielectric region in a bulk silicon (Si) substrate of a mixed-signal integrated circuit (IC) provide a high-Q passive resonator. Deep trenches within the bulk Si substrate in <100> directions are expanded by wet etching to form contiguous cavities, which are filled by Si oxide to form a dielectric region. The dielectric region enhances the quality (Q) of an overlying passive resonator, formed in metallization layers of the mixed-signal IC.
    Type: Application
    Filed: August 20, 2015
    Publication date: December 10, 2015
    Inventors: James S. Dunn, Zhong-Xiang He, Qizhi Liu
  • Publication number: 20150332925
    Abstract: A semiconductor structure with low resistance conduction paths and methods of manufacture are disclosed. The method includes forming at least one low resistance conduction path on a wafer, and forming an electroplated seed layer in direct contact with the low resistance conduction path.
    Type: Application
    Filed: May 19, 2014
    Publication date: November 19, 2015
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jeffrey P. GAMBINO, Thomas J. HARTSWICK, Zhong-Xiang HE, Anthony K. STAMPER, Eric J. WHITE
  • Patent number: 9159671
    Abstract: Approaches for fabricating copper wires in integrated circuits are provided. A method of manufacturing a semiconductor structure includes forming a wire opening in a mask. The method also includes electroplating a conductive material in the wire opening. The method additionally includes forming a cap layer on the conductive material. The method further includes removing the mask. The method still further includes forming spacers on sides of the conductive material. The method additionally includes forming a dielectric film on surfaces of the cap layer and the sidewall spacers.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: October 13, 2015
    Assignee: International Business Machines Corporation
    Inventors: Fen Chen, Jeffrey P. Gambino, Zhong-Xiang He, Trevor A. Thompson, Eric J. White
  • Publication number: 20150277064
    Abstract: Disclosed are structures with an optical waveguide having a first segment at a first level and a second segment extending between the first level and a higher second level and further extending along the second level. Specifically, the waveguide comprises a first segment between first and second dielectric layers. The second dielectric layer has a trench, which extends through to the first dielectric layer and which has one side positioned laterally adjacent to an end of the first segment. The waveguide also comprises a second segment extending from the bottom of the trench on the side adjacent to the first segment up to and along the top surface of the second dielectric layer on the opposite side of the trench. A third dielectric layer covers the second segment in the trench and on the top surface of the second dielectric layer. Also disclosed are methods of forming such optoelectronic structures.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 1, 2015
    Applicant: International Business Machines Corporation
    Inventors: Zhong-Xiang He, Qizhi Liu, Ronald G. Meunier, Steven M. Shank
  • Publication number: 20150262911
    Abstract: A through silicon via (TSV), method and 3D integrated circuit are disclosed. The TSV extends through a substrate to a back side of the substrate and includes a body including a first metal for coupling to an interconnect on a front side of the substrate. A dielectric collar insulates the body from the substrate. The TSV also includes an end cap coupled to the body on the back side of the substrate, the end cap including a second metal that is different than the first metal. The end cap acts as a grinding stop indicator during back side grinding for 3D integration processing, preventing damage to the dielectric collar and first metal (e.g., copper) contamination of the substrate.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 17, 2015
    Applicant: International Business Machines Corporation
    Inventors: Fen Chen, Jeffrey P. Gambino, Charles W. Griffin, Zhong-Xiang He, Anthony K. Stamper
  • Publication number: 20150255528
    Abstract: Structures and methods of making a dielectric region in a bulk silicon (Si) substrate of a mixed-signal integrated circuit (IC) provide a high-Q passive resonator. Deep trenches within the bulk Si substrate in <100> directions are expanded by wet etching to form contiguous cavities, which are filled by Si oxide to form a dielectric region. The dielectric region enhances the quality (Q) of an overlying passive resonator, formed in metallization layers of the mixed-signal IC.
    Type: Application
    Filed: March 4, 2014
    Publication date: September 10, 2015
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: James S. Dunn, Zhong-Xiang He, Qizhi Liu
  • Patent number: 9093503
    Abstract: Disclosed is a semiconductor chip having a dual damascene insulated wire and insulated through-substrate via (TSV) structure and methods of forming the chip. The methods incorporate a dual damascene technique wherein a trench and via opening are formed in dielectric layers above a substrate such that the trench is above a first via and the via opening is positioned adjacent to the first via and extends vertically from the trench and into the substrate. Dielectric spacers are formed on the sidewalls of the trench and via opening. A metal layer is deposited to form an insulated wire in the trench and an insulated TSV in the via opening. Thus, the insulated wire electrically connects the insulated TSV to the first via and, thereby to an on-chip device or lower metal level wire below. Subsequently, the substrate is thinned to expose the insulated TSV at the bottom surface of the substrate.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: July 28, 2015
    Assignee: International Business Machines Corporation
    Inventors: Fen Chen, Mukta G. Farooq, Jeffrey P. Gambino, Zhong-Xiang He, Kevin S. Petrarca, Anthony K. Stamper