公开(公告)号：US20190352789A1

公开(公告)日：2019-11-21

申请号：US16383852

申请日：2019-04-15

Applicant: Guangdong University of Technology

Inventor： Yun CHEN ,  Xin CHEN ,  Dachuang SHI ,  Xun CHEN ,  Qiang LIU ,  Jian GAO ,  Chengqiang CUI

IPC: C25D5/02 ,  C25D7/12 ,  C25D3/38 ,  C25D17/00 ,  H01L21/288 ,  H01L21/768

Abstract: A method for synchronous electroplating filling of differential vias and an electroplating device. Laser irradiation is adopted as an external energy field to assist synchronous electroplating filling of differential vias. A mask or digital maskless technology is used to precisely heat the vias with different positions and different sizes. The filling rate of different regions varies with the temperature difference, thereby realizing the synchronous electroplating filling of differential vias in one step. In the processes of immersion pre-wetting by the electroplating liquid and electroplating filling copper, the laser is used for preheating the wafer processed with vias. In these two steps, the laser needs to locally and precisely heat upper surfaces of the micro vias on the wafer through the mask corresponding to the micro vias on the wafer.

公开(公告)号：US20230298914A1

公开(公告)日：2023-09-21

申请号：US18062026

申请日：2022-12-06

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Hui TANG ,  Zhishen LIAO ,  Xin CHEN ,  Zhihang LIN ,  Jian GAO ,  Qiang LIU ,  Xun CHEN

IPC: H01L21/67

CPC classification number: H01L21/67144 ,  H01L21/67259

Abstract: A compliant mechanical system for Mini/Micro chip mass transfer and packaging comprises a flexure-based continuous ejector pin mechanism including a drive support plate, a mounting base, first thorn die attach drive devices, second thorn die attach drive devices, first flexible hinges, second flexible hinges, and a pricking pin. The first thorn die attach drive devices and the second thorn die attach drive devices are mounted on the drive support plate. A drive end of the first thorn die attach drive device horizontally passes rightward through the first flexible hinge at a corresponding position; a drive end of the second thorn die attach drive device horizontally passes leftward through the first flexible hinge at a corresponding position; and the mounting base is hinged to the drive ends of the two thorn die attach drive devices through the second flexible hinges.

公开(公告)号：US20230173703A1

公开(公告)日：2023-06-08

申请号：US18154766

申请日：2023-01-13

Applicant: Guangdong University of Technology

Inventor： Lijun WEI ,  Shaowen YAO ,  Qiang LIU ,  Hao ZHANG

IPC: B26D5/00 ,  B26D1/08

CPC classification number: B26D5/005 ,  B26D1/085 ,  G05B2219/45044

Abstract: A cutting stock method for a rectangular sheet with defects, including: acquiring information of the rectangular defective sheet, including dimension information of the rectangular sheet and target blocks, and location information of the defects; acquiring a cutting position discrete set of the rectangular sheet; cutting the rectangular sheet according to the cutting position discrete set into a plurality of target blocks; calculating a sum of values of the target blocks, and selecting an optimal cutting solution with the largest sum of values; and cutting the rectangular sheet according to the optimal cutting solution.

公开(公告)号：US20210326974A1

公开(公告)日：2021-10-21

申请号：US17134366

申请日：2020-12-26

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Jiewu LENG ,  Man ZHOU ,  Yuxuan XIAO ,  Longzhang LI ,  Qiang LIU ,  Haochi PAN ,  Zihan LI ,  Zhangyi WANG ,  Jingyi CAI ,  Shuer LIN

IPC: G06Q30/08 ,  G06F30/20 ,  H04L9/08 ,  H04L9/06

Abstract: The disclosure relates to a blockchain-based outsourcing processing method, including the steps of: transmitting, by a demander, product demand information to a network data server to form a demand order, and transmitting, by a supplier, self-processing capability information to the network data server; performing, by the network data server, matching according to the demand information and the processing capability information, and transmitting the demand order to the supplier; selecting, by the supplier, the demand order to quote; confirming, by the two parties, quotation, establishing transaction and generating a smart contract, and writing the smart contract into a blockchain for storage; and after completing goods delivery, automatically executing account transfer according to the smart contract to complete outsourcing processing transaction.

公开(公告)号：US20200326692A1

公开(公告)日：2020-10-15

申请号：US16826205

申请日：2020-03-21

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Qiang LIU ,  Yuan SONG ,  Jiewu LENG ,  Guixiang LIN ,  Hao ZHANG

IPC: G05B19/418 ,  G05B19/05 ,  G05B17/02 ,  G06F30/20 ,  G06T5/00

Abstract: The present invention relates to the field of intelligent machining, in particular to a parallel control method based on multi-period differential sampling and digital twinning technologies, the method comprising the following steps of: a. detecting machining conditions of dotting machine equipment by using a multi-period differential sampling technology; b. establishing a digital twinning control model; and c. controlling a simulation model of the dotting machine equipment according to a detection judgment result so as to perform parallel control on the dotting machine equipment. According to the parallel control method based on multi-period differential sampling and digital twinning modelling provided by the present invention, for the digital twinning model of the dotting machine equipment, the parallel control method establishes a simulation model and a detection model of the dotting machine equipment by using a virtual-real synchronization technology; simulation dotting machine equipment operates in synchronization with the physical dotting machine equipment.

公开(公告)号：US20230268205A1

公开(公告)日：2023-08-24

申请号：US18062025

申请日：2022-12-06

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Xin CHEN ,  Zhihang LIN ,  Hui TANG ,  Hongcheng LI ,  Jian GAO ,  Qiang LIU ,  Xun CHEN

IPC: H01L21/67 ,  H01L33/00

CPC classification number: H01L21/67144 ,  H01L33/0093

Abstract: A flexure-based continuous ejector pin mechanism for Mini/Micro chip mass transfer includes a first drive frame, a second drive frame, a mounting base, a first thorn die attach drive device, a second thorn die attach drive device, first flexible hinges, second flexible hinges, and a pricking pin. The second drive frame and the first drive frame are connected through the first flexible hinge. The mounting base is connected to a left side and a right side of the second drive frame through the second flexible hinges. Compared with a laser transfer technology, the flexible movable thorn die attach device has lower cost and higher accuracy; compared with a vacuum nozzle transfer technology, the flexible movable thorn die attach device has higher transfer efficiency and quality; and compared with a conventional thorn die attach device, the flexible movable thorn die attach device has higher transfer efficiency and precision.

公开(公告)号：US20200218243A1

公开(公告)日：2020-07-09

申请号：US16819178

申请日：2020-03-16

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Qiang LIU ,  Hao ZHANG ,  Xin CHEN ,  Kuanyuan LI ,  Jiewu LENG

IPC: G05B19/418 ,  G06F13/40

Abstract: A parallel control method for an intelligent workshop is provided, comprising the following steps: step A: constructing a parallel control simulation platform; step B: establishing a parallel execution mechanism; and, step C: correcting and optimizing a parallel control system. A parallel control system for an intelligent workshop is provided, comprising: an MES module configured to issue production instructions to unit management modules; the unit management modules configured to convert the received production instructions into machine instructions and synchronously issue the machine instructions to underlying PLCs by a bus control network module, and drive the parallel control simulation platform and a field device to move by a soft PLC and a hard PLC; the bus control network module configured to establish a communication network among the MES module, an SCADA module, an industrial personal computer, physical devices and a whole-line simulation model; and, the SCADA module.

公开(公告)号：US20190355587A1

公开(公告)日：2019-11-21

申请号：US16383885

申请日：2019-04-15

Applicant: Guangdong University of Technology

Inventor： Xin CHEN ,  Yun CHEN ,  Dachuang SHI ,  Xun CHEN ,  Qiang LIU ,  Jian GAO ,  Chengqiang CUI

IPC: H01L21/308 ,  H01L21/306

Abstract: A method for synchronous wet etching processing of differential microstructures, including the following steps: step a: performing photoetching on a processing surface of a workpiece to be processed to develop the workpiece; step b: affixing a mask to a surface opposite to the processing surface of the workpiece; step c: continuously cooling the mask; step d: placing the cooled mask and the workpiece in a wet etching device; and adding an etchant to the processing surface of the workpiece to start etching; step e: removing the mask and the workpiece from the wet etching device after the set etching time; separating the mask and the workpiece to obtain a workpiece with a etching structure. A temperature difference is formed between the pattern area to be processed and the retaining area.

公开(公告)号：US20230196216A1

公开(公告)日：2023-06-22

申请号：US18154792

申请日：2023-01-13

Applicant: Guangdong University of Technology

Inventor： Lijun WEI ,  Shaowen YAO ,  Qiang LIU ,  Ting LIU

IPC: G06Q10/04 ,  G05B19/18

CPC classification number: G06Q10/043 ,  G05B19/182

Abstract: A packing method for a defective sheet based on branch-and-cut algorithm, including: acquiring sheet information, where the sheet information includes size information of the defect sheet, size information of a target block and position information of a defect; based on actual cutting requirements, establishing constraints; and establishing a primal problem model according to the constraints; converting the primal problem model into a relaxed problem model; checking and verifying the obtained solution by x-check method to determine whether the obtained solution meets the constraints of the primal problem model; outputting the optimal solution to obtain an optimal cutting plan that meets the actual cutting requirements; and cutting the defective sheet according to the optimal cutting plan. A system for implement the packing method is also provided.

公开(公告)号：US20230136158A1

公开(公告)日：2023-05-04

申请号：US18066362

申请日：2022-12-15

Applicant: Guangdong University of Technology

Inventor： Lijun WEI ,  Tai ZHANG ,  Qiang LIU ,  Libin LIN ,  Ailin YU

IPC: G05B19/19 ,  B23K26/38 ,  B23K26/03

Abstract: A laser cutting method for irregular parts based on machine vision includes: (A) obtaining and numbering vertices of all parts on the layout diagram; (B) planning a part vertex set and an empty cutting path vertex set; (C) obtaining a shortest empty cutting path and the empty cutting path vertex set with the shortest empty cutting path; (D) cutting the parts one by one according to an order obtained by the CPLEX algorithm. This application further provides a laser cutting system.