Patents by Inventor Shaowen Gao

Shaowen Gao 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: 10401837
    Abstract: A method disclosed herein includes: converting an image of a manufactured circuit to a plurality of representative contours, the plurality of representative contours corresponding to printed features in the manufactured circuit; generating a risk inventory for the manufactured circuit based on the plurality of representative contours, the risk inventory being configured to identify at least one process sensitive geometry (PSG) in the manufactured circuit; generating a common process window (CPW) for the manufactured circuit based on the plurality of representative contours and the risk inventory, the CPW being indicative of manufacturing reliability of each feature in the manufactured circuit; and generating instructions to adjust a manufacturing tool for creating the manufactured circuit, based on the generated CPW.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: September 3, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Hongxin Zhang, Shaowen Gao, Norman Chen
  • Patent number: 10386715
    Abstract: A method of creating an optical proximity correction (OPC) model and assessing the model through optical rule checking (ORC) includes the introduction of post-integration, i.e., post-metallization data. High density critical dimension scanning electron microscopy and backscattered electron scanning electron microscopy from a metallized structure are used during development and verification of the model to accurately predict post-integration behavior.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: August 20, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Feng Wang, Hongxin Zhang, Shaowen Gao, Norman Chen
  • Publication number: 20190113837
    Abstract: A method of creating an optical proximity correction (OPC) model and assessing the model through optical rule checking (ORC) includes the introduction of post-integration, i.e., post-metallization data. High density critical dimension scanning electron microscopy and backscattered electron scanning electron microscopy from a metallized structure are used during development and verification of the model to accurately predict post-integration behavior.
    Type: Application
    Filed: October 12, 2017
    Publication date: April 18, 2019
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Feng WANG, Hongxin ZHANG, Shaowen GAO, Norman CHEN
  • Publication number: 20190101905
    Abstract: Methods according to the disclosure include: converting an image of a manufactured circuit to a plurality of representative contours, the plurality of representative contours corresponding to printed features in the manufactured circuit; generating a risk inventory for the manufactured circuit based on the plurality of representative contours, the risk inventory being configured to identify at least one process sensitive geometry (PSG) in the manufactured circuit; generating a common process window (CPW) for the manufactured circuit based on the plurality of representative contours and the risk inventory, the CPW being indicative of manufacturing reliability of each feature in the manufactured circuit; and generating instructions to adjust a manufacturing tool for creating the manufactured circuit, based on the generated CPW.
    Type: Application
    Filed: September 29, 2017
    Publication date: April 4, 2019
    Inventors: Hongxin Zhang, Shaowen Gao, Norman Chen
  • Patent number: 9484300
    Abstract: Methods for forming a semiconductor layer, such as a metal1 layer, having minimum width features separated by a distance greater than a minimum pitch, and the resulting devices are disclosed. Embodiments may include determining a first shape and a second shape having a minimum width within a semiconductor layer, wherein a distance between the first shape and the second shape is greater than a minimum pitch, determining an intervening shape between the first shape and the second shape, and designating a dummy shape within the intervening shape, wherein the dummy shape is at the minimum pitch from the first shape.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: November 1, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Sonia Ghosh, Randy Mann, Norman Chen, Shaowen Gao
  • Publication number: 20160093565
    Abstract: Methods for forming a semiconductor layer, such as a metal 1 layer, having minimum width features separated by a distance greater than a minimum pitch, and the resulting devices are disclosed. Embodiments may include determining a first shape and a second shape having a minimum width within a semiconductor layer, wherein a distance between the first shape and the second shape is greater than a minimum pitch, determining an intervening shape between the first shape and the second shape, and designating a dummy shape within the intervening shape, wherein the dummy shape is at the minimum pitch from the first shape.
    Type: Application
    Filed: November 30, 2015
    Publication date: March 31, 2016
    Inventors: Sonia GHOSH, Randy MANN, Norman CHEN, Shaowen GAO
  • Patent number: 9263349
    Abstract: Methods for forming a semiconductor layer, such as a metal1 layer, having minimum width features separated by a distance greater than a minimum pitch, and the resulting devices are disclosed. Embodiments may include determining a first shape and a second shape having a minimum width within a semiconductor layer, wherein a distance between the first shape and the second shape is greater than a minimum pitch, determining an intervening shape between the first shape and the second shape, and designating a dummy shape within the intervening shape, wherein the dummy shape is at the minimum pitch from the first shape.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: February 16, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Sonia Ghosh, Randy Mann, Norman Chen, Shaowen Gao
  • Publication number: 20150130026
    Abstract: Methods for forming a semiconductor layer, such as a metal1 layer, having minimum width features separated by a distance greater than a minimum pitch, and the resulting devices are disclosed. Embodiments may include determining a first shape and a second shape having a minimum width within a semiconductor layer, wherein a distance between the first shape and the second shape is greater than a minimum pitch, determining an intervening shape between the first shape and the second shape, and designating a dummy shape within the intervening shape, wherein the dummy shape is at the minimum pitch from the first shape.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Applicant: GLOBALFOUNDRIES Inc.
    Inventors: Sonia GHOSH, Randy MANN, Norman CHEN, Shaowen GAO
  • Patent number: 8027028
    Abstract: A precise positioning system for dual stage switching exposure, which includes a base, a first wafer stage positioning unit disposed on the base for a pre-processing workstation, and a second wafer stage positioning unit for an exposure workstation. Each of the wafer stage positioning units includes a wafer stage, a motion positioning detector, an X-direction guide bar, and a Y-direction guide bar. The pre-processing workstation and the exposure workstation both have two X-direction guide bars positioned on and movable along the Y-direction guide bars. The X-direction guide bars of adjacent workstations can be connected to each other.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: September 27, 2011
    Assignee: Shanghai Micro Electronics Equipment Co., Ltd.
    Inventors: Yingsheng Li, Xiaoping Li, Zhiyong Yang, Jun Guan, Shaowen Gao, Wenfeng Sun, Gang Li, Yanmin Cai
  • Publication number: 20090219503
    Abstract: The present invention discloses a precise positioning system for dual stage switching exposure, which comprises at least a base, a first wafer stage positioning unit disposed on the base for a pre-processing workstation, and a second wafer stage positioning unit for an exposure workstation. Each of the wafer stage positioning units comprises at least a wafer stage, a motion positioning detector, an X-direction guide bar, and a Y-direction guide bar. The pre-processing workstation and the exposure workstation of the system both have two X-direction guide bars positioned on and movable along the Y-direction guide bars. The X-direction guide bars of adjacent workstations can be connected to each other. The advantage of the present invention is that the switching paths of the wafer stages are short; the guide bars are equally forced; the size of the wafer stages are hardly restricted, thereby greatly improving the switching speed, operation accuracy and flexibility of the system.
    Type: Application
    Filed: November 20, 2006
    Publication date: September 3, 2009
    Applicant: SHANGHAI MICRO ELECTRONICS EQUIPMENT CO., LTD
    Inventors: Yingsheng Li, Zhiyong Yang, Jun Guan, Shaowen Gao, Wenfeng Sun, Gang Li, Yanmin Cai