-
公开(公告)号：US20230357016A1
公开(公告)日：2023-11-09
申请号：US18146378
申请日：2022-12-25
发明人： Huilong LIU , Yun CHEN , Xin CHEN , Yixin ZHENG , Kyoung-Sik MOON , Dachuang SHI , Jian GAO , Ching-Ping WONG
IPC分类号： C01B32/184 , C01B32/196
CPC分类号： C01B32/184 , C01B32/196 , C01P2004/04 , C01P2002/82 , C01P2002/85
摘要： A method for integrally forming a graphene film (GF) of a high specific surface area (SSA) by ultrafast ultraviolet (UV) laser processing, includes: selecting a carbon precursor material, where the carbon precursor material is one selected from the group consisting of a biomass/hydrogel composite and a heavy hydrocarbon compound; adding an activator solution to an inside of the carbon precursor material to obtain a composite with an activator uniformly loaded, and spreading the composite on a flexible substrate to form a carbon precursor material layer; heating and drying the carbon precursor material layer; in-situ processing with an ultrafast UV laser to obtain an activated GF of a high SSA; and cleaning and drying the activated GF. With the method of the present disclosure, a microporous activated GF of a high SSA can be directly processed in-situ on a flexible substrate.
-
公开(公告)号：US20230268205A1
公开(公告)日：2023-08-24
申请号：US18062025
申请日：2022-12-06
发明人： Xin CHEN , Zhihang LIN , Hui TANG , Hongcheng LI , Jian GAO , Qiang LIU , Xun CHEN
CPC分类号： H01L21/67144 , H01L33/0093
摘要： 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：US20230235810A1
公开(公告)日：2023-07-27
申请号：US18154533
申请日：2023-01-13
发明人： Lanyu ZHANG , Jian GAO , Shaoxuan ZHANG , Yun CHEN , Xin CHEN , Kai ZHANG
CPC分类号： F16F15/002 , F16F15/02 , F16F2222/04 , F16F2228/066 , F16F2230/18
摘要： A rapid active vibration reduction method for a high-speed motion stage includes acquiring motion parameters of a motion body of the motion stage in current motion; determining a vibration reduction mode of a vibration reduction device according to the motion parameters; and controlling an action end of the vibration reduction device to contact with the motion body of the motion stage or contact with a driving device for driving the motion body to move based on the vibration reduction mode, so that a contact friction force used for suppressing vibration of the motion body is generated. Realizing vibration reduction by means of active friction can reduce vibration of the motion body in a specific stage needing vibration reduction, and the action end of the vibration reduction device does not need to contact with the motion body or does not need to contact with the driving device before vibration reduction.
-
4.发明申请公开(公告)号：US20220060125A1
公开(公告)日：2022-02-24
申请号：US16950062
申请日：2020-11-17
发明人： Jian GAO , Jindi ZHANG , Yuheng LUO , Lingwei TAN , Lanyu ZHANG , Xin CHEN
摘要： The present disclosure relates to the technical field of mechanical precision manufacturing, in particular to a motor tracking error reduction method and an implementation device based on a micro-drive unit. A motor tracking error reduction method based on micro-drive unit includes: providing a motor mover as the working output end, and feeding back the position information of the motor mover to the micro-drive controller in real time by the sensor; controlling the micro-drive unit to compensate the displacement of the motor mover by the micro-drive controller; correcting the tracking error of the motor mover after the displacement compensation, and feeding back the tracking error information after correction to the motor controller. The error reduction method and implementation device in the present disclosure reduce the motor tracking error and solve the problem of coupling interference. In addition, the single position feedback is used to reduce the production cost.
-
公开(公告)号：US20200218243A1
公开(公告)日：2020-07-09
申请号：US16819178
申请日：2020-03-16
发明人： Qiang LIU , Hao ZHANG , Xin CHEN , Kuanyuan LI , Jiewu LENG
IPC分类号： G05B19/418 , G06F13/40
摘要： 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
发明人： Xin CHEN , Yun CHEN , Dachuang SHI , Xun CHEN , Qiang LIU , Jian GAO , Chengqiang CUI
IPC分类号： H01L21/308 , H01L21/306
摘要： 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.
-
7.发明公开公开(公告)号：US20240363793A1
公开(公告)日：2024-10-31
申请号：US18769413
申请日：2024-07-11
发明人： Yun CHEN , Yanhui CHEN , Li MA , Hao ZHANG , Jintao CHEN , Maoxiang HOU , Xin CHEN
IPC分类号： H01L33/00
CPC分类号： H01L33/005
摘要： An ejector pin sliding on membrane-based device and method for mass transfer of mini light-emitting diodes (Mini-LEDs) are provided. The device includes a gantry transverse beam. The gantry transverse beam is provided with an ejector pin base, and the ejector pin base is configured to move along the gantry transverse beam. The ejector pin base is fixedly provided with a vision camera and an ejector pin. A blue membrane is horizontally provided at a side of the gantry transverse beam close to the ejector pin, and is spaced from the gantry beam. A surface of a side of the blue membrane away from the gantry transverse beam is adhesively provided with a plurality of Mini-LED chips arranged evenly. A transfer substrate is horizontally provided at a side of the blue membrane close to the plurality of Mini-LED chips, and is spaced from the blue membrane.
-
公开(公告)号：US20240159521A1
公开(公告)日：2024-05-16
申请号：US18423054
申请日：2024-01-25
发明人： Jian GAO , Yizhong ZHUANG , Lanyu ZHANG , Haixiang DENG , Yun CHEN , Xin CHEN
IPC分类号： G01B11/25 , G06T7/73 , G06T7/80 , G06T17/00 , H04N13/239
CPC分类号： G01B11/2545 , G06T7/75 , G06T7/85 , G06T17/00 , H04N13/239 , G06T2207/10012 , G06T2207/10028 , G06T2207/30204 , G06T2210/56
摘要： A three-dimensional measurement method combines the three-step phase shift method to embed the marker line information into the sinusoidal stripe pattern to obtain the target stripe pattern. The target stripe pattern is projected onto the surface of the object to be measured, and the wrapped phase image, mean intensity image and modulated intensity image of the stripe pattern collected by the left and right cameras are solved. The mask image according to the mean intensity image and modulation intensity image is solved to extract the marker line. The spatial phase unwrapping starting from the marker line in the wrapped phase image is performed to obtain the spatial phase. The spatial phase matching based on the unique correspondence between the left and right cameras based on the spatial phase of the marker line is performed, the best matching point of the right camera is obtained.
-
公开(公告)号：US20230390746A1
公开(公告)日：2023-12-07
申请号：US18339190
申请日：2023-08-17
发明人： Yun CHEN , Shengbao LAI , Biao LI , Zuohui LIU , Guanhai WEN , Maoxiang HOU , Xin CHEN
IPC分类号： B01J27/224 , B01J21/18 , B01J6/00 , B01J37/06 , B01J37/08 , B01J37/04 , B01J35/00 , C01B3/04
CPC分类号： B01J27/224 , B01J21/18 , B01J6/001 , B01J37/06 , B01J37/08 , B01J37/04 , B01J35/004 , C01B3/045
摘要： This application discloses a silicon carbide (SiC)-loaded graphene photocatalyst for hydrogen production under visible light irradiation and a preparation method thereof. Pure SiC and pure black carbon are respectively prepared and mixed to obtain a mixture with a resistance less than 100Ω. Then the mixture was vacuumized and processed with a current pulse with an increasing voltage until a breakdown occurs, and subjected to ultrasonic stirring, centrifugal washing and vacuum drying in turn to obtain the SiC-loaded graphene photocatalyst. By means of the current pulse, a heterojunction is formed between SiC and graphene to improve the catalytic activity of the photocatalyst; and the photocatalytic hydrogen production rate of SiC nanoparticles can be enhanced after loaded on the graphene.
-
10.发明公开公开(公告)号：US20230364657A1
公开(公告)日：2023-11-16
申请号：US18359139
申请日：2023-07-26
发明人： Yun CHEN , Biao LI , Aoke SONG , Shankun DONG , Shengbao LAI , Maoxiang HOU , Xin CHEN
CPC分类号： B08B7/028 , B06B1/0688 , B06B2201/56 , B06B2201/71 , G03F7/405
摘要： A method of fabricating a film vibration device, including: photoetching a surface of a silicon wafer to form a circular-hole array; etching an aluminum layer on the silicon wafer; etching the silicon wafer to form a through-hole array to obtain a porous silicon wafer; attaching a polyethylene terephthalate (PET) sheet to a side of the porous silicon wafer; ablating the PET sheet to obtain a porous PET film; attaching a polyvinylidene fluoride (PVDF) film to a lower side of the porous silicon wafer; performing vacuumization above the porous silicon wafer, while heating the PVDF film below the porous silicon wafer to create dome micro-structures on the PVDF film; and laminating the porous PET film on each of two sides of the PVDF film to obtain the film vibration device. This application also provides a cleaning device having the film vibration device.
-
-
-
-
-
-
-
-
-
搜索结果
37 条记录 (耗时 0.028 秒)
