Patents by Inventor Fajun Yang

Fajun Yang 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: 10643873
    Abstract: A system and method of controlling a cluster tool apparatus, wherein the cluster tool includes one or more processing modules and a robot that is configured to move a semiconductor product to and from the one or more processing modules, the cluster tool configured for processing semiconductor products. The method of controlling the cluster tool apparatus to perform a processing cycle includes receiving a plurality of system parameters from a user interface, wherein the system parameters relate to one or more processing steps of the processing cycle, determining a schedule for performing the processing cycle utilizing the one or more processing modules, wherein the schedule being determined based on a semiconductor product residency parameter.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: May 5, 2020
    Assignee: MACAU UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Naiqi Wu, Fajun Yang, Yan Qiao, Mengchu Zhou, Zhiwu Li
  • Patent number: 10520914
    Abstract: A system and method of controlling a multi cluster tool system configured to process a semiconductor product includes a plurality of cluster tools arranged adjacent each other, a buffer module positioned between a pair of cluster tools, each cluster tool including a plurality of processing modules and a robot, the method of controlling a multi cluster tool system including receiving a plurality of system parameters from a user interface, wherein the system parameters correspond to one or more processing steps in a system cycle, wherein the system cycle is a cycle of processing the semiconductor product, determining a system schedule for defining the system cycle for processing a semiconductor product, the system schedule providing robot waiting times for each robot of each cluster tool, controlling, via a controller, the operation of each robot of each cluster tool based on the determined schedule.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: December 31, 2019
    Assignee: MACAU UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Naiqi Wu, Fajun Yang, Liping Bai, Mengchu Zhou, Zhiwu Li
  • Patent number: 10101721
    Abstract: A method determines an optimized production schedule of a production line including a hybrid multi-cluster tool formed by a plurality of single-arm tools and dual-arm tools interconnected with each other.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: October 16, 2018
    Assignee: MACAU UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Naiqi Wu, Fajun Yang, Yan Qiao, Mengchu Zhou
  • Patent number: 10073444
    Abstract: Since single and dual-arm tools behave differently, it is difficult to coordinate their activities in a hybrid multi-cluster tool that is composed of both single- and dual-arm tools. Aiming at finding an optimal one-wafer cyclic schedule for a treelike hybrid multi-cluster tool whose bottleneck tool is process-bound, the present work extends a resource-oriented Petri net to model such system. By the developed Petri net model, to find a one-wafer cyclic schedule is to determine robot waiting times. By doing so, it is shown that, for any treelike hybrid multi-cluster tool whose bottleneck tool is process-bound, there is always a one-wafer cyclic schedule. Then, computationally efficient algorithms are developed to obtain the minimal cycle time and the optimal one-wafer cyclic schedule. Examples are given to illustrate the developed method.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: September 11, 2018
    Assignee: Macau University of Science and Technology
    Inventors: Naiqi Wu, Fajun Yang, Yan Qiao, Mengchu Zhou
  • Publication number: 20180081336
    Abstract: A system and method of controlling a multi cluster tool system configured to process a semiconductor product includes a plurality of cluster tools arranged adjacent each other, a buffer module positioned between a pair of cluster tools, each cluster tool including a plurality of processing modules and a robot, the method of controlling a multi cluster tool system including receiving a plurality of system parameters from a user interface, wherein the system parameters correspond to one or more processing steps in a system cycle, wherein the system cycle is a cycle of processing the semiconductor product, determining a system schedule for defining the system cycle for processing a semiconductor product, the system schedule providing robot waiting times for each robot of each cluster tool, controlling, via a controller, the operation of each robot of each cluster tool based on the determined schedule.
    Type: Application
    Filed: September 19, 2016
    Publication date: March 22, 2018
    Inventors: Naiqi Wu, Fajun Yang, Liping Bai, Mengchu Zhou, Zhiwu Li
  • Publication number: 20180076064
    Abstract: A system and method of controlling a cluster tool apparatus, wherein the cluster tool includes one or more processing modules and a robot that is configured to move a semiconductor product to and from the one or more processing modules, the cluster tool configured for processing semiconductor products. The method of controlling the cluster tool apparatus to perform a processing cycle includes receiving a plurality of system parameters from a user interface, wherein the system parameters relate to one or more processing steps of the processing cycle, determining a schedule for performing the processing cycle utilizing the one or more processing modules, wherein the schedule being determined based on a semiconductor product residency parameter.
    Type: Application
    Filed: September 13, 2016
    Publication date: March 15, 2018
    Inventors: Naiqi Wu, Fajun Yang, Yan Qiao, Mengchu Zhou, Zhiwu Li
  • Publication number: 20170115651
    Abstract: A method determines an optimized production schedule of a production line including a hybrid multi-cluster tool formed by a plurality of single-arm tools and dual-arm tools interconnected with each other.
    Type: Application
    Filed: October 22, 2015
    Publication date: April 27, 2017
    Inventors: Naiqi Wu, Fajun Yang, Yan Qiao, Mengchu Zhou
  • Publication number: 20170083009
    Abstract: Since single and dual-arm tools behave differently, it is difficult to coordinate their activities in a hybrid multi-cluster tool that is composed of both single- and dual-arm tools. Aiming at finding an optimal one-wafer cyclic schedule for a treelike hybrid multi-cluster tool whose bottleneck tool is process-bound, the present work extends a resource-oriented Petri net to model such system. By the developed Petri net model, to find a one-wafer cyclic schedule is to determine robot waiting times. By doing so, it is shown that, for any treelike hybrid multi-cluster tool whose bottleneck tool is process-bound, there is always a one-wafer cyclic schedule. Then, computationally efficient algorithms are developed to obtain the minimal cycle time and the optimal one-wafer cyclic schedule. Examples are given to illustrate the developed method.
    Type: Application
    Filed: October 21, 2015
    Publication date: March 23, 2017
    Inventors: Naiqi Wu, Fajun Yang, Yan Qiao, Mengchu Zhou
  • Patent number: 9223307
    Abstract: In semiconductor manufacturing, there are wafer fabrication processes in cluster tools that need a wafer to visit some processing steps for more than once, leading to a revisiting process. Also, wafers may be subject to wafer residency time constraints. By considering atomic layer deposition (ALD) as a typical wafer revisiting process, this invention studies the challenging scheduling problem of single-arm cluster tools for the ALD process with wafer residency time constraints. By recognizing that the key to this problem is to schedule the robot tasks, the present invention presents different robot task sequencing strategies. With these strategies for different cases, the present invention performs the schedulability analysis and derives the schedulability conditions for such tools for the first time. If schedulable, the present invention proposes scheduling algorithms to obtain an optimal schedule efficiently. Illustrative examples are given to show the application of the proposed concepts and approach.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: December 29, 2015
    Assignee: Macau University of Science and Technology
    Inventors: Naiqi Wu, Fajun Yang, Yan Qiao, MengChu Zhou
  • Publication number: 20140051661
    Abstract: The present invention provides resveratrol-based boron-containing analog! methods of use thereof in treatment of dyslipidemias and cancer.
    Type: Application
    Filed: February 15, 2012
    Publication date: February 20, 2014
    Applicants: The Texas A&M University System, Albert Einstein College of Medicine of Yeshiva University
    Inventors: Bhaskar C. Das, Fajun Yang, Xiaoping Zhao, Jeffrey E. Pessin, Haihong Zong, Jun-Yuan Ji