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公开(公告)号：US20240117209A1
公开(公告)日：2024-04-11
申请号：US18543147
申请日：2023-12-18
Applicant: Guangdong University of Technology
Inventor： Yu ZHANG , Kai YANG , Guannan YANG , Chengqiang CUI
CPC classification number: C09D11/52 , C09D17/006
Abstract: A method for preparing a nano metal paste, including the following steps. (S1) An organic metallic salt and an organic reducing agent are added into water or an organic solvent to obtain a first mixture. (S2) The first mixture is reacted under heating to obtain a second mixture containing metal nanoparticles. (S3) The second mixture is concentrated to obtain a nano metal paste containing 20-95% by weight of the metal nanoparticles. A conductive paste and A conductive ink prepared by using the nano metal paste as filler are also provided.
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公开(公告)号：US20220146094A1
公开(公告)日：2022-05-12
申请号：US17463623
申请日：2021-09-01
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY , Guangzhou Herui Energy Conservation and Environmental Protection Technology Co., Ltd.
Inventor： Xiaozhou LIU , Peibin LIN , Guangyu ZHU , Wei LIU , Yu ZHANG
Abstract: A system for disposing a high-moisture mixed waste composed of kitchen garbage and water-containing sludge is provided, including a mixed waste storage device, a mixed waste primary-drying device and a mixed waste incinerating device.
The mixed waste primary-drying device includes a mixed waste primary-drying body, a primary-drying material inlet, a primary-dried material outlet, a drying gas inlet and a primary waste gas outlet. A discharging outlet of the mixed waste storage device is connected with the primary-drying material inlet through the first conveying belt. The mixed waste incinerating device includes an incinerator, an incineration material inlet, an incineration material outlet, a combustion-supporting gas inlet and a flue gas outlet. The incineration material inlet is connected with the primary-dried material outlet through the second conveying belt and the combustion-supporting gas inlet is connected with the primary waste gas outlet. The flue gas outlet is connected with the drying gas inlet.-
公开(公告)号：US20210219476A1
公开(公告)日：2021-07-15
申请号：US17218367
申请日：2021-03-31
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Xin CHEN , Yunbo HE , Xiquan MAI , Chengqiang CUI , Qiang LIU , Jian GAO , Zhijun YANG , Xun CHEN , Yun CHEN , Kai ZHANG , Hui TANG , Yu ZHANG
Abstract: A variable pitch electronic component mass transfer apparatus is disclosed. A die-bond transfer head is disposed below each of the die-bond brackets. The die-bond connecting rod is provided with die-bond movable nodes arranged equidistantly. Each of the die-bond movable node is hinged to one of the die-bond brackets. An output end of the die-bond linear motor drives the die-bond connecting rod to move telescopically. A flip-chip transfer head is disposed below each of the flip-chip brackets. The flip-chip connecting rod is provided with flip-chip movable nodes arranged equidistantly. Each of the flip-chip movable nodes is hinged to one of the flip-chip brackets. An output end of the flip-chip linear motor drives the flip-chip connecting rod to move telescopically. An output end of the connecting rod rotating motor is connected to the flip-chip rail, and is configured to turn over the flip-chip rail.
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公开(公告)号：US20210180786A1
公开(公告)日：2021-06-17
申请号：US16761774
申请日：2017-11-08
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Xiaozhou LIU , Yu ZHANG , Wenxing LIU
Abstract: The invention discloses an opposed-injection aluminum melting furnace uniform combustion system which comprises: a furnace body, a first heat storage unit, a second heat storage unit, and four fuel injection guns disposed diagonally on two end walls of the furnace body comprising a first fuel injection gun located on the first end wall of the furnace body adjacent to the second heat storage unit, a second fuel injection gun located on the second end wall of the furnace body adjacent to the first heat storage unit, a third fuel injection gun on the second end wall of the furnace body adjacent to the second heat storage unit, and a fourth fuel injection gun located on the first end wall of the furnace body adjacent to the first heat storage unit, the gas injection direction of the first fuel injection gun is parallel with that of the second fuel injection gun with a spacing H between the axes thereof, the gas injection direction of the third fuel injection gun is parallel with that of the fourth fuel injection gun, with a spacing H between the axes thereof, and the spacing H between the axes is set to a quarter to one tenth of the furnace body width, such that the gas entering the chamber are oppositely-injected to form a swirling flow.
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公开(公告)号：US20240113068A1
公开(公告)日：2024-04-04
申请号：US18500714
申请日：2023-11-02
Applicant: Guangdong University of Technology
Inventor： Yu ZHANG , Ranyuan ZHANG , Junyu HE , Wenjun HUANG , Chengqiang CUI , Guannan YANG
IPC: H01L23/00
CPC classification number: H01L24/81 , H01L2224/81011 , H01L2224/81098 , H01L2224/81205 , H01L2224/8184 , H01L2924/01029
Abstract: A method for forming an ultrafine-pitch all-copper interconnect structure is provided. Nano-copper particles are mixed with a solvent, a dispersant and a viscosity modifier to prepare a nano-copper paste. A chip with a preset number of copper pillars having a preset diameter and a substrate are selected, cleaned and pretreated. The chip is sucked and flipped by a bonding machine to make the copper pillars face outward. The chip is sucked through a suction nozzle of the bonding machine and dipped in the nano-copper paste. A protective gas is fed, and the copper pillars are aligned with copper pads on the substrate through an optical system of the bonding machine, bonded with the substrate at a preset pressure and temperature under ultrasonication, and cooled at room temperature to obtain the interconnect structure. An ultrafine-pitch all-copper interconnect structure fabricated by the method is also provided.
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Patent Agency Ranking
公开(公告)号：US20210176865A1
公开(公告)日：2021-06-10
申请号：US17110501
申请日：2020-12-03
Applicant: Guangdong University of Technology
Inventor： Chengqiang CUI , Guannan YANG , Guangdong XU , Yu ZHANG , Xin CHEN
Abstract: A method for repairing a fine line is provided. Nano metal particles are filled in a defect of a circuit board. The nano metal particles in the defect are irradiated by a laser, or heated, such that the nano metal particles in the defect are metallurgically bonded to an original line of the circuit board. A surface of the circuit board is cleaned to remove residual nano metal particles on parts of the circuit board where metallurgical bonding is not performed, thereby completing line repairing of the circuit board.
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7.发明申请公开(公告)号：US20220415846A1
公开(公告)日：2022-12-29
申请号：US17897086
申请日：2022-08-26
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Yu ZHANG , Chengqiang CUI , Peilin LIANG , Jin TONG , Guannan YANG
IPC: H01L23/00
Abstract: This application relates to semiconductor manufacturing, and more particularly to an interconnect structure for semiconductors with an ultra-fine pitch and a forming method thereof. The forming method includes: preparing copper nanoparticles using a vapor deposition device, where coupling parameters of the vapor deposition device are adjusted to control an initial particle size of the copper nanoparticles; depositing the copper nanoparticles on a substrate; invertedly placing a chip with copper pillars as I/O ports on the substrate; and subjecting the chip and the substrate to hot-pressing sintering to enable the bonding.
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8.发明申请公开(公告)号：US20220146095A1
公开(公告)日：2022-05-12
申请号：US17525945
申请日：2021-11-14
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY , Gungzhou Herui Energy Conservation and Environmental Protection Technology Co., Ltd.
Inventor： Xiaozhou LIU , Peibin LIN , Wei LIU , Longbiao DONG , Yu ZHANG
Abstract: A low nitrogen coupling combustion system for the disposal of waste stink gas and solid waste including a waste pit, at least one stink gas incineration equipment and a waste incinerator, wherein the waste pit is equipped with stink gas outlets and the stink gas incineration equipment is provided with an incineration chamber for burning stink gas, as well as a stink gas inlet, a fuel inlet and a burned stink gas outlet which are connected with the incineration chamber; the stink gas inlet is connected with the stink gas outlet of the waste pit through a stink gas delivery pipe, and the fuel inlet is connected with a fuel source through a fuel delivery pipe; the burned stink gas outlet is connected with a combustion-supporting air inlet of the waste incinerator through a flue gas discharge pipe.
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公开(公告)号：US20250052416A1
公开(公告)日：2025-02-13
申请号：US18519770
申请日：2023-11-27
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
Inventor： Xiaozhou LIU , Gang CHEN , Huaming ZHANG , Yu ZHANG
Abstract: Disclosed is a mixed combustion system fueled with ammonia, hydrogen and natural gas, which comprises a furnace chamber, a combustor, a heat exchanger, a mixer and a storage tank, the combustor and a conical combustion cavity are installed in the furnace chamber, the storage tank is provided with a first branch pipeline through a conveying pipe to be connected with the heat exchanger, the heat exchanger is connected with an inlet of the mixer, and an outlet of the mixer is connected with a fuel inlet of the combustor; and the conveying pipe is provided with a second branch pipeline connected with an ejector port of a first ejector, the first ejector is installed on a flue gas recirculating pipe connected with a furnace chamber flue gas exhaust pipeline, and the other end of the flue gas recirculating pipe is connected with an auxiliary fuel inlet of the combustor.
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公开(公告)号：US20210246059A1
公开(公告)日：2021-08-12
申请号：US17242290
申请日：2021-04-27
Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY , Guangzhou Herui Energy Conservation and Environmental Protection Technology Co., Ltd.
Inventor： Xiaozhou LIU , Peibin LIN , Guangyu ZHU , Qinning MA , Yu ZHANG , Shuirun WEN
Abstract: An energy-saving sludge drying disposal system is provided. The disposal system includes a vacuum heating unit, an incinerating unit, a vacuum cooling unit and a molten salt heat exchanging unit. The vacuum cooling unit includes a high-temperature gas inlet, a condensed water outlet, a low-temperature gas outlet, a low-temperature liquid inlet and a medium-temperature liquid outlet. The high-temperature gas inlet of the vacuum cooling unit is connected with the vacuum heating unit. The incinerating unit includes an incinerator, an incineration gas inlet, a combustion-supporting gas inlet, a flue gas discharge outlet, a cold molten salt inlet and a hot molten salt outlet. The incineration gas inlet is connected with the low-temperature gas outlet of the vacuum cooling unit. The molten salt heat exchanging unit includes a cold molten salt outlet, a hot molten salt inlet, a medium-temperature liquid inlet and a high-temperature liquid outlet.
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