Patents by Inventor Naiqi Wu

Naiqi Wu 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: 10346214
    Abstract: Given a sequential resource allocation system (RAS) topology structure, a state space, called an impulse state space, corresponding to the impulse response of a linear time-invariant system (LTS), is computed by small enough configuration of the considered RAS. Given an initial resource configuration of a RAS which corresponds to an input of an LTS, a complete state enumeration can be obtained by defining the convolution of this configuration with the pre-computed impulse state space. One example embodiment reduces central processing unit (CPU) time to process instructions that compute a target state space of a RAS includes constructing an initial RAS and an initial state space, and extending the initial state space iteratively under a target resource configuration.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: July 9, 2019
    Assignee: Macau University of Science and Technology
    Inventors: Zhiwu Li, Oussama Karoui, Naiqi Wu, Mohamed Khalgui
  • Publication number: 20190018708
    Abstract: Given a sequential resource allocation system (RAS) topology structure, a state space, called an impulse state space, corresponding to the impulse response of a linear time-invariant system (LTS), is computed by small enough configuration of the considered RAS. Given an initial resource configuration of a RAS which corresponds to an input of an LTS, a complete state enumeration can be obtained by defining the convolution of this configuration with the pre-computed impulse state space. One example embodiment reduces central processing unit (CPU) time to process instructions that compute a target state space of a RAS includes constructing an initial RAS and an initial state space, and extending the initial state space iteratively under a target resource configuration.
    Type: Application
    Filed: July 13, 2017
    Publication date: January 17, 2019
    Inventors: Zhiwu LI, Oussama KAROUI, Naiqi WU, Mohamed KHALGUI
  • Patent number: 10134613
    Abstract: A system and method for a cluster tool apparatus for processing a semiconductor product including processing modules located adjacent each other and configured to process a semiconductor module, loadlocks configured to retain and dispense unprocessed semiconductor products and each positioned adjacent one of the processing modules, a robot configured to load, transfer and unload a semiconductor product to and from the processing modules, a hardware controller in communication with the robot and executing a method to close down the cluster tool apparatus to an idle state, the method including determining a status of the processing modules, determining if a close down process is required based on the status or based on a close down signal, and, if required, determining a schedule for a close down process based on a semiconductor product residency parameter, and controlling the operation of the robot based on the schedule to perform the close down process.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: November 20, 2018
    Assignee: MACAU UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Yan Qiao, Mengchu Zhou, Naiqi Wu, Zhiwu Li, Qinghua Zhu
  • 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: 10103569
    Abstract: A power transmission system includes a plurality of electrical substations and a plurality of transmission lines arranged to connect the plurality of electrical substations to form a power transmission network; and a controller system arranged to control a power transmission within the power transmission network. The controller system includes: a detection module arranged to detect an occurrence of a fault in at least one faulty electrical substation of the plurality of electrical substations; and a restoration module arranged to at least temporally maintain an output power of the at least one faulty electrical substation; and wherein at least one of the plurality of electrical substations is operable to facilitate maintaining of the output of the at least one faulty electrical substation upon the detection of the occurrence of the fault.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: October 16, 2018
    Assignee: MACAU UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Zhiwu Li, Zhongyuan Jiang, Naiqi Wu, 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: 20180227167
    Abstract: A system for fault detection and recovery of a network includes a network simulation module arranged to receive component data regarding a plurality of components that form the network and simulate the network, a modelling module arranged to utilise the simulated network to model a number of faults in the network to determine the effect of the faults on the network, and a recovery module arranged to determine a solution to the fault on the network.
    Type: Application
    Filed: February 8, 2017
    Publication date: August 9, 2018
    Inventors: Zhiwu Li, Syrine Ben Meskina, Mohamed Khalgui, Narjes Doggaz, Naiqi Wu
  • Patent number: 10001773
    Abstract: The scheduling problem of a multi-cluster tool with a tree topology whose bottleneck tool is process-bound is investigated. A method for scheduling the multi-cluster tool to thereby generate an optimal one-wafer cyclic schedule for this multi-cluster tool is provided. A Petri net (PN) model is developed for the multi-cluster tool by explicitly modeling robot waiting times such that a schedule is determined by setting the robot waiting times. Based on the PN model, sufficient and necessary conditions under which a one-wafer cyclic schedule exists are derived and it is shown that an optimal one-wafer cyclic schedule can be always found. Then, efficient algorithms are given to find the optimal cycle time and its optimal schedule. Examples are used to demonstrate the scheduling method.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: June 19, 2018
    Assignee: Macau University of Science and Technology
    Inventors: Naiqi Wu, Qinghua Zhu, Yan Qiao, Mengchu Zhou
  • Patent number: 10001772
    Abstract: Recent trends of larger wafer and smaller lot sizes bring cluster tools with frequent lot switches. Practitioners must deal with more transient processes during such switches, including start-up and close-down processes. To obtain higher yield, it is necessary to shorten the duration of transient processes. Much prior effort was poured into the modeling and scheduling for the steady state of cluster tools. In the existing literature, no attention has been turned to optimize the close-down process for single-arm cluster tools with wafer residency constraints. This invention intends to do so by 1) developing a Petri net model to analyze their scheduling properties and 2) proposing Petri net-based methods to solve their close-down optimal scheduling problems under different workloads among their process steps. Industrial examples are used to illustrate the effectiveness and application of the proposed methods.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: June 19, 2018
    Assignee: Macau University of Science and Technology
    Inventors: Naiqi Wu, Qinghua Zhu, Mengchu Zhou, Yan Qiao
  • Patent number: 9957959
    Abstract: For sustainable development, a refinery is required to save energy as much as possible so as to reduce the emission of greenhouse gas. In crude oil operations, oil transportation from storage tanks to charging tanks via a pipeline consumes a large portion of energy. It is vitally important to minimize energy consumption for this process. Since the oil flow resistance is proportional to the square of oil flow rate, the relation between energy efficiency and flow rate is nonlinear, which makes the problem complicated. The present invention addresses this important issue by formulating a linear programming model for the considered problem such that it can be efficiently solved. A real-world industrial case study is used to demonstrate the applications and significance of the proposed method.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: May 1, 2018
    Assignee: Macau University of Science and Technology
    Inventors: Naiqi Wu, Zhiwu Li
  • Patent number: 9927816
    Abstract: A method for operating a follower vehicle in a vehicle platoon includes determining, during operation, whether the follower vehicle is operating in a normal state or an abnormal state based on an operation condition of a component of the follower vehicle, or a communication between the follower vehicle and a preceding vehicle in the vehicle platoon. The method further includes selecting a first control mode if the follower vehicle is in the normal state and a second control mode if the follower vehicle is in the abnormal state so as to control movement of the follower vehicle using the selected control mode. In the first control mode, the follower vehicle uses communication data received from the preceding vehicle in the vehicle platoon to control its movement. In the second control mode, the follower vehicle uses data obtained by one or more of its sensors to control its movement.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: March 27, 2018
    Assignee: Macau University of Science and Technology
    Inventors: Zhiwu Li, Oussama Karoui, Anis Koubaa, Mohamed Khalgui, Emna Guerfala, Eduardo Tovard, Naiqi Wu
  • Publication number: 20180082878
    Abstract: A system and method for a cluster tool apparatus for processing a semiconductor product including processing modules located adjacent each other and configured to process a semiconductor module, loadlocks configured to retain and dispense unprocessed semiconductor products and each positioned adjacent one of the processing modules, a robot configured to load, transfer and unload a semiconductor product to and from the processing modules, a hardware controller in communication with the robot and executing a method to close down the cluster tool apparatus to an idle state, the method including determining a status of the processing modules, determining if a close down process is required based on the status or based on a close down signal, and, if required, determining a schedule for a close down process based on a semiconductor product residency parameter, and controlling the operation of the robot based on the schedule to perform the close down process.
    Type: Application
    Filed: September 22, 2016
    Publication date: March 22, 2018
    Inventors: Yan Qiao, Mengchu Zhou, Naiqi Wu, Zhiwu Li, Qinghua Zhu
  • 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: 20170329348
    Abstract: A method for operating a follower vehicle in a vehicle platoon includes determining, during operation, whether the follower vehicle is operating in a normal state or an abnormal state based on an operation condition of a component of the follower vehicle, or a communication between the follower vehicle and a preceding vehicle in the vehicle platoon. The method further includes selecting a first control mode if the follower vehicle is in the normal state and a second control mode if the follower vehicle is in the abnormal state so as to control movement of the follower vehicle using the selected control mode. In the first control mode, the follower vehicle uses communication data received from the preceding vehicle in the vehicle platoon to control its movement. In the second control mode, the follower vehicle uses data obtained by one or more of its sensors to control its movement.
    Type: Application
    Filed: May 13, 2016
    Publication date: November 16, 2017
    Inventors: Zhiwu Li, Oussama Karoui, Anis Koubaa, Mohamed Khalgui, Emna Guerfala, Eduardo Tovard, Naiqi Wu
  • Publication number: 20170279298
    Abstract: A power transmission system includes a plurality of electrical substations and a plurality of transmission lines arranged to connect the plurality of electrical substations to form a power transmission network; and a controller system arranged to control a power transmission within the power transmission network. The controller system includes: a detection module arranged to detect an occurrence of a fault in at least one faulty electrical substation of the plurality of electrical substations; and a restoration module arranged to at least temporally maintain an output power of the at least one faulty electrical substation; and wherein at least one of the plurality of electrical substations is operable to facilitate maintaining of the output of the at least one faulty electrical substation upon the detection of the occurrence of the fault.
    Type: Application
    Filed: March 23, 2016
    Publication date: September 28, 2017
    Inventors: Zhiwu Li, Zhongyuan Jiang, Naiqi Wu, Mengchu Zhou
  • Publication number: 20170262007
    Abstract: The present invention deals with microgrids, which represent a new approach to integrate distributed energy resources economically reliably and efficiently. A microgrid can operate in a connected mode if it makes an energetic exchange with a main grid or in an island mode otherwise. In its island operation mode, a microgrid ensures its energy self-sufficiency. However, the availability of resources in this mode is greatly influenced by meteorological factors and the microgrid must satisfy the high requirements on intelligent power management in order to achieve high availability of energy. The present invention provides a multi-agent control system based on the production forecasting and loads shedding for high availability of the microgrid power supply.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 14, 2017
    Inventors: Li Zhiwu, Mohamed Ghaieth Abidi, Moncef Ben Smida, Mohamed Khalgui, Naiqi Wu
  • Publication number: 20170131700
    Abstract: A method for implementing a new reactive system and a new reactive system includes applying at least one input suitable for the new reactive system to an existing reactive system to obtain at least one output produced by the existing reactive system; comparing the at least one output with an expected output representative of an output expected to be obtained by applying the at least one input to the new reactive system; determining if the at least one output would be compatible with the expected output; and using the compatibility between the at least one output and the expected output to generate a supervisory control rule set arranged for supervisory control of the existing reactive system when used as part or whole of the new reactive system.
    Type: Application
    Filed: November 16, 2015
    Publication date: May 11, 2017
    Inventors: Zhiwu Li, Lei Feng, Huimin Zhang, Naiqi Wu