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35results about How to "Meet alignment requirements" patented technology

Alignment mark structure for photoetching and manufacturing method thereof

The invention provides an alignment mark structure for photoetching and a manufacturing method thereof and relates to the design and manufacturing method of a multi-layer graph structure for mutual alignment precision. According to the alignment mark structure for photoetching and a manufacturing method of the alignment mark structure, all photoetching alignment graphs are centrally symmetrical about the same center when the photoetching alignment graphs are projected to the plane where any of the photoetching alignment graphs is located, the projections of all the photoetching alignment graphs are nested and expand in sequence from inside to outside in the forming sequence of the photoetching alignment graphs, the alignment mark structure can be applied to the manufacturing processes based on various photoetching techniques, free matching can be conducted according to different requirements, the requirement for alignment of various photoetching techniques can be met, the requirement for alignment of photoetching alignment marks on different layers can be met, the requirements for traditional alignment measurement and alignment measurement required by three-time exposure and four-time exposure can also be met, the space of a cutting way can be saved, and cost is reduced.
Owner:SHANGHAI HUALI MICROELECTRONICS CORP

Permanent magnet motor stator and rotor assembling device and method

A permanent magnet motor stator assembling device is characterized by comprising an assembling platform for supporting, a positioning plate and a guide bushing, wherein the positioning plate is provided with a guide hole and is fixed to the assembling platform, the guide bushing is axially detachably connected with a revolving shaft drive end of a rotor, and a stator is detachably mounted on the positioning plate and aligned to the guide hole coaxially; in the assembling process of the stator and rotor, the guide bushing matches with the guide hole in a guided way and runs through the positioning plate to extend to the assembling platform. In application of the permanent magnet motor stator and rotor assembling device, accurate centering positioning and guiding of the stator and the rotorduring assembling is guaranteed, centering requirements of assembling of the stator and the rotor are met, the stator and the rotor are assembled in a reliable, safe and effective way without any damage to winding, and quality and precision of assembling of the stator and the rotor are guaranteed. The invention further relates to a permanent magnet motor stator and rotor assembling method.
Owner:CSR ZHUZHOU ELECTRIC CO LTD

Pressurized water reactor driving line cold test device

The invention discloses a pressurized water reactor driving line cold test device. The pressurized water reactor driving line cold test device comprises a top cover simulation assembly and a hanging basket simulation assembly which are located between a control rod driving mechanism and a guide cylinder assembly. The top cover simulation assembly and the hanging basket simulation assembly are connected to form a cavity structure, and a control rod guide assembly is further installed in the cavity. The upper end of the control rod guide assembly is connected with the control rod driving mechanism, the lower end of the control rod guide assembly is connected with a hoarding assembly, simulation fuel and a control rod assembly are located in the hoarding assembly, and a pressing simulation assembly is further installed between the control rod guide assembly and the hanging basket simulation assembly. The pressurized water reactor driving line cold test device has the function of performing tests on the rod falling characteristic of the control rod assembly by simulating a prototype reactor and performing test research on the influences on the rod falling performance in different operation environments with driving line eccentricity and flow changes, the obtained test results are accurate and can be used for testing design reasonability and reliability of a control rod driving line guide structure, and a necessary test basis is provided for the design of a driving line.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

Self-centering mechanism for semiconductor chip

The invention relates to technology for centering and lifting a wafer during processing a semiconductor wafer, namely a mechanism for centering and lifting a machine, in particular to an automatic centering mechanism of a semiconductor wafer, which can solve the problems such as difficult control on centering accuracy of the wafer, and adopt an automatic centering mode of meeting requirement of centering accuracy for processing the semiconductor wafer. The centering mechanism is provided with a splicing plate, a centering block, a connection plate, a bearing pedestal and a cylinder, wherein the splicing plate and the centering block are fixed on the bearing pedestal respectively, and the bearing pedestal is connected with the cylinder through the connection plate. Two centering mechanisms form a group, and the centering mechanisms at two sides work synchronously during centering. The centering process is divided into two steps, namely splicing and centering. The centering mechanism can exchange sizes of the centering block and the splicing plate according to the size of the processed wafer.
Owner:SHENYANG KINGSEMI CO LTD

Reflection type telescope adjustment method, device and equipment and storage medium

The invention discloses a reflective telescope adjustment method which comprises the following steps: replacing a correction lens group with an adjustment camera; obtaining second internal and external parameters of the adjustment camera and a telescope as an integral part according to a calibration image shot by the adjustment camera; according to the first internal and external parameters and the second internal and external parameters of the adjustment camera and a pre-established mapping relation model, determining a relative position relation between the telescope and the adjustment camera to adjust the adjustment camera to be aligned with the telescope. According to the invention, the correction lens group is replaced by the adjustment camera, and the alignment adjustment between thecorrection lens group and the telescope is realized through the alignment adjustment between the adjustment camera and the telescope, thereby improving the installation and adjustment precision of alarge-aperture large-field-of-view telescope to a great extent, and facilitating the improvement of the detection capability of the telescope. The invention further provides an adjusting device and equipment of the reflection type telescope and a computer readable storage medium. The adjusting device and equipment have the beneficial effects in the specification.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Automatic aligning device for scribing machine platform datum

The automatic aligning device for scribing machine platform datum includes a main shaft seat, a main shaft carrying cutting head, a cutting datum platform and its driving device and an automatic control system. The technological features include the aligning circuit of the automatic control system with aligning point JK connected to the conductor connected to the main shaft and the aligning point PT connected to the conductor connected to the datum platform fixed onto the datum platform, and the PLC connected to the aligning points through wires, relay, step motor driver, optoelectronic isolator and starting button. The present invention has reasonable structure, easy operation and convenient regulation, can realize the automatic aligning of the scribing machine platform datum to ensure high cutting quality.
Owner:SHENYANG ACAD OF INSTR SCI

Electric car wireless charging system and method with storage and deviation rectification functions

The invention discloses an electric car wireless charging system and method with storage and deviation rectification functions. The system comprises an underground pit layer, a parallel connection mechanism, a storage covering device, a ground layer, a primary coil, a secondary coil and an electric vehicle. The parallel connection mechanism is fixed to the underground pit layer, and the primary coil is placed above the parallel connection mechanism. The storage covering device is parallel to the ground and can move horizontally, and a wireless charging emission outlet can be opened and closed.The secondary coil is fixed to the lower side behind the electric vehicle. When an automobile is parked above the charging device, the storage covering device is turned on, and the primary coil is automatically aligned to the secondary coil under the effect of the parallel connection effect. When charging is completed, the primary coil is stored under the ground under the effect of the parallel connection effect, and the emission outlet is closed by the storage covering device. Storage and deviation rectification of the wireless charging process of the electric vehicle can be achieved, the electric vehicle wireless charging efficiency is effectively improved, and the charging process is more convenient.
Owner:YANSHAN UNIV

Processing visual device for light-emitting diode (LED) laser cutting-up machine

The invention provides a processing visual device for a light-emitting diode (LED) laser cutting-up machine and relates to the technical field of laser cutting-up machines. The processing visual device mainly comprises a front alignment optical path and a bottom alignment optical path; the front alignment optical path is coaxial with a laser processing optical path and used for identifying and positioning the back of a transparent wafer and monitoring processing in real time; the bottom alignment optical path is coaxial with the laser processing optical path and used for identifying and positioning the front of a special coarsened wafer; and a bottom alignment lens is arranged at the bottom of a wafer chuck (24) and is coaxial with the front alignment lens; and the wafer is arranged on the wafer chuck (24) with an upward back. The front alignment of the wafer can be realized, the cutting-up process requirements of the coarsened wafer can be met in a mode of back cutting-up of the wafer, and the identification and alignment, and scratch monitoring of different wafers can be performed so as to contribute to improving production quality and automation degree. The wafer can be accurately focused by a laser focusing optical path and the cost is relatively low.
Owner:THE 45TH RES INST OF CETC

Long-stroke split-type hanging basket assembly capable of controlling deformation

The invention relates to the nuclear power technology, and in particular discloses a long-stroke split-type hanging basket assembly capable of controlling deformation. The split-type hanging basket assembly capable of controlling deformation comprises a hanging basket barrel body, a lower reactor core plate which is fixedly connected to the lower end of the hanging basket barrel body, and a baffle which is arranged in the hanging basket barrel body; the baffle is divided into three sections; a forming plate is arranged outside the baffle; by adopting a multi-section short baffle structure, the differential temperature stress of the connection of baffles is effectively reduced and the baffle is convenient to manufacture; by adopting the forming plate, the deformation of the baffle caused by radiation thermal effect is reduced; a cooling agent runner hole corresponding to a fuel assembly is arranged on the lower reactor core plate, and meanwhile, a centering hole for the lower rector core plate and an upper reactor core plate is provided, thus the technical requirement of flow cooling of the cooling agent is met, and meanwhile the centering requirement of the lower reactor core plate and the upper reactor core plate is also met, and besides, the installation becomes more accurate and more reliable.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

Fully-automatic wood cutting machine

The invention relates to the field of intelligent wood processing, and particularly discloses a fully-automatic wood cutting machine which comprises a frame, a table plate, a cutting mechanism, a storage mechanism and a conveying mechanism. The storage mechanism comprises a shelf, a first adjusting plate and a second adjusting plate, the bottom of the second adjusting plate is fitted with the table plate, a gap is reserved between the bottom of the first adjusting plate and the table plate, a supporting mechanism, a pushing mechanism and an adjusting mechanism are arranged on the shelf, a lifting mechanism is arranged on the table plate, the conveying mechanism comprises a conveying plate, a baffle plate, a sliding way, a sliding groove, a conveying component and a conveying motor, the conveying component comprises a slidable pushing block, an L-shaped pushing plate and a balance plate, and the cutting mechanism comprises a guide rail, a driving cylinder, a movable support, a movable seat, a cutting motor, a cutting saw blade, a fixed cylinder, a fixed plate, an alignment cylinder, an alignment plate, a sensor and a positioning block. The cutting machine has the advantages that thehuman cost is low, cutting efficiency and automation degree are high, an original wood material cannot be inclined, and potential safety hazards are avoided.
Owner:景宁畲族自治县畲山凤民族工艺品开发有限公司

A C-type mechanical shaft automatic straightening machine

The invention relates to a C-type straightening machine and belongs to the field of ultra-precision machining apparatuses. The C-type mechanical shaft automatic straightening machine comprises an automatic feeding mechanism, a touch screen and operation control panel and PLC electrical control box; an automatic discharging mechanism, a rack, a material pouring mechanism, a work piece clamping mechanism, a straightening mechanism, a measuring mechanism, a straightening moving mechanism and an automatic NG processing mechanism. With the automatic straightening and automatic feeding and discharging mechanisms and with the function of automatic angle rotation, repeated clamping is not needed in measurement and correction and procedures are saved. A displacement sensor can perform high speed data collection on work pieces and perform timely feedback. A servo motor is used as a power source for moving straightening points, so that rapid and accurate location to the straightening points is achieved and the straightening requirements of work pieces with different lengths are met. A PLC and a touch screen are used for control in the aspect of electrical control and the servo motor and an air cylinder are used as power sources; the parts are responsible for all operation commands and implementation of the apparatus.
Owner:吉林瑞铭机电设备有限公司

Storage device of wood cutting machine

The invention relates to the field of wood machining equipment, and in particular, discloses a storage device of a wood cutting machine. The storage device comprises a frame (1), a table plate (2) anda storage mechanism (4); the storage mechanism comprises a frame (401), a first adjusting plate (402) and a second adjusting plate (403); the bottom of the second adjusting plate is bonded with the table plate; a gap is formed between the bottom of the first adjusting plate and the table plate; the frame is provided with a support mechanism (404), a pushing mechanism (405) and an adjusting mechanism (406); a lifting mechanism (407) is arranged at the bottom of the table plate; a motion direction of the lifting mechanism is perpendicular to the table plate; and the first adjusting plate is positioned between the lifting mechanism and the end part of the frame. The storage device of the wood cutting machine has the characteristics of lower labor cost, higher conveying efficiency and higherautomation degree.
Owner:湖北小楚匠家居科技有限公司

Semiconductor forming method and structure thereof

The invention discloses a semiconductor forming method and a structure thereof, and the forming method comprises the steps of providing a chip which is provided with a virtual device region; and forming an alignment mark in the virtual device region. The alignment mark is separated from other alignment patterns in an original cutting channel, the alignment requirement is met, but also an exposuredevice can identify the alignment mark more easily, the interference between optical interferometers is reduced, and the resolution is improved, so that the alignment precision can be improved. On theother hand, the virtual device region is effectively utilized, so that the area utilization rate of the wafer is improved.
Owner:SEMICON MFG INT (SHANGHAI) CORP +1

A laser gyro ring resonator optical path collimation device and method

The invention belongs to laser technology, and relates to a laser gyroscope annular resonant cavity light path alignment device and method. The laser gyroscope annular resonant cavity light path alignment device comprises a laser device, a light path adjusting component, polarizers, a half transparent and half reflecting mirror, high-reflectivity mirrors, plane mirrors, spherical mirrors, cavity adjusting tools and photoelectric receivers, wherein light output by the laser device enters the polarizers and the half transparent and half reflecting mirror after being adjusted through a light beam adjusting mechanism, then one path of light is directly injected into an annular resonant cavity in the horizontal direction, and the other path of light is reflected by the high-reflectivity mirrors and then is injected into the resonant cavity in the vertical direction. The photoelectric receivers are connected with the resonant cavity through the polarizers and used for detecting output light in the horizontal and vertical direction respectively. The spherical mirrors are dynamically adjusted in real time according to characteristics of linearly polarized light received by the two receiving light paths, annular resonant cavity light path alignment is completed until extinction coefficients of polarized light clockwise and counter-clockwise paths are equal, and tiny non-coplanar light path compensation of the annular resonant cavity is achieved.
Owner:XIAN FLIGHT SELF CONTROL INST OF AVIC

Method for aligning base line of two-dimensional rotating table

The invention discloses a method for aligning a base line of a two-dimensional rotating table, and the method uses radar equipment and low-cost equipment to realize rapid alignment of the base line ofthe two-dimensional rotating table under the environment of field testing. Mainly used auxiliary measuring equipment are GPS machine equipment, a geomagnetic sensor and a gradienter. The enforcementmode of the method includes the steps that firstly, the radar equipment is fixed to the rotating table, and the rotating table is leveled; secondly, a reference point is set beyond the distance being400m from the rotating table, an angle reflector is placed, and the longitude, latitude and height of the rotating table position and the reference point position are measured by GPS; thirdly, the rotating table is adjusted to align the forward-looking direction of a radar base with the position of the reference point, and thus the base line of the rotating table coincides with a reference base line; and fourthly, the azimuth angle and pitch angle of the rotating table base line are calculated and fused with a measurement value of the geomagnetic sensor to obtain a final measurement value of the rotating table base line. According to the method for aligning the base line of the two-dimensional rotating table, under the condition of field testing, the angle measurement characteristics of the radar equipment are fully utilized, the low-cost and easily purchased auxiliary equipment is adopted, and the simple, convenient and fast method for aligning the base line of the rotating table is achieved.
Owner:BEIJING INST OF REMOTE SENSING EQUIP

Mounting and adjusting method, device, equipment and storage medium of reflecting telescope

The invention discloses a reflective telescope adjustment method which comprises the following steps: replacing a correction lens group with an adjustment camera; obtaining second internal and external parameters of the adjustment camera and a telescope as an integral part according to a calibration image shot by the adjustment camera; according to the first internal and external parameters and the second internal and external parameters of the adjustment camera and a pre-established mapping relation model, determining a relative position relation between the telescope and the adjustment camera to adjust the adjustment camera to be aligned with the telescope. According to the invention, the correction lens group is replaced by the adjustment camera, and the alignment adjustment between thecorrection lens group and the telescope is realized through the alignment adjustment between the adjustment camera and the telescope, thereby improving the installation and adjustment precision of alarge-aperture large-field-of-view telescope to a great extent, and facilitating the improvement of the detection capability of the telescope. The invention further provides an adjusting device and equipment of the reflection type telescope and a computer readable storage medium. The adjusting device and equipment have the beneficial effects in the specification.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Semiconductor chip automatic centering mechanism

The invention relates to technology for centering and lifting a wafer during processing a semiconductor wafer, namely a mechanism for centering and lifting a machine, in particular to an automatic centering mechanism of a semiconductor wafer, which can solve the problems such as difficult control on centering accuracy of the wafer, and adopt an automatic centering mode of meeting requirement of centering accuracy for processing the semiconductor wafer. The centering mechanism is provided with a splicing plate, a centering block, a connection plate, a bearing pedestal and a cylinder, wherein the splicing plate and the centering block are fixed on the bearing pedestal respectively, and the bearing pedestal is connected with the cylinder through the connection plate. Two centering mechanismsform a group, and the centering mechanisms at two sides work synchronously during centering. The centering process is divided into two steps, namely splicing and centering. The centering mechanism canexchange sizes of the centering block and the splicing plate according to the size of the processed wafer.
Owner:SHENYANG KINGSEMI CO LTD

Deformation-controlled long-stroke split bucket assembly

The invention relates to the nuclear power technology, and in particular discloses a long-stroke split-type hanging basket assembly capable of controlling deformation. The split-type hanging basket assembly capable of controlling deformation comprises a hanging basket barrel body, a lower reactor core plate which is fixedly connected to the lower end of the hanging basket barrel body, and a baffle which is arranged in the hanging basket barrel body; the baffle is divided into three sections; a forming plate is arranged outside the baffle; by adopting a multi-section short baffle structure, the differential temperature stress of the connection of baffles is effectively reduced and the baffle is convenient to manufacture; by adopting the forming plate, the deformation of the baffle caused by radiation thermal effect is reduced; a cooling agent runner hole corresponding to a fuel assembly is arranged on the lower reactor core plate, and meanwhile, a centering hole for the lower rector core plate and an upper reactor core plate is provided, thus the technical requirement of flow cooling of the cooling agent is met, and meanwhile the centering requirement of the lower reactor core plate and the upper reactor core plate is also met, and besides, the installation becomes more accurate and more reliable.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

Paper tube hot extruder with marking device

The invention discloses a paper tube hot extruder with a marking device. The paper tube hot extruder comprises a digital control table, a feeding mechanism, a screw transmission mechanism and a heating and extruding mechanism. An output end of the heating and extruding mechanism is provided with the marking device for marking a straight line on the outer surface of a paper tube when the paper tube is output. The marking device comprises a bracket, a marking pen, a spring and a bolt. The bracket is I-shaped; a through hole is formed on each of the three faces of the bracket; a pen point end of the marking pen passes through the through hole on the bottom face of the bracket; a pen body of the marking pen is supported through the through hole, so that the pen body is located between the top face and the bottom face of the bracket; a groove is formed at the tail part of the marking pen; a bolt is screwed in the through hole on the top face of the bracket which is sleeved at the bottom end of the bolt by tightly pressing one end of the spring of the marking pen; and the other end of the spring is located in the groove for finely adjusting a vertical position of the marking pen. With the adoption of the paper tube hot extruder with the marking device, hot extrusion and marking can be carried out simultaneously, so that the alignment requirement in a paper tube follow-up film rolling process is met, and the failure in film rolling caused by inclination of the film rolling is avoided.
Owner:TIANJIN WANHUA CO LTD

c-type mechanical shaft automatic straightening machine

The invention relates to a C-type straightening machine and belongs to the field of ultra-precision machining apparatuses. The C-type mechanical shaft automatic straightening machine comprises an automatic feeding mechanism, a touch screen and operation control panel and PLC electrical control box; an automatic discharging mechanism, a rack, a material pouring mechanism, a work piece clamping mechanism, a straightening mechanism, a measuring mechanism, a straightening moving mechanism and an automatic NG processing mechanism. With the automatic straightening and automatic feeding and discharging mechanisms and with the function of automatic angle rotation, repeated clamping is not needed in measurement and correction and procedures are saved. A displacement sensor can perform high speed data collection on work pieces and perform timely feedback. A servo motor is used as a power source for moving straightening points, so that rapid and accurate location to the straightening points is achieved and the straightening requirements of work pieces with different lengths are met. A PLC and a touch screen are used for control in the aspect of electrical control and the servo motor and an air cylinder are used as power sources; the parts are responsible for all operation commands and implementation of the apparatus.
Owner:吉林瑞铭机电设备有限公司

Corn harvester

PendingCN113940191AMeet alignment requirementsSolve the problem that the returning field machine cannot be returned due to leakageMowersThreshersTransmission beltAgricultural engineering
The invention provides a corn harvester. The corn harvester comprises a power output mechanism located on the right side of a whole machine, a main transmission shaft, a transmission belt and a tensioning wheel used for tensioning the transmission belt. The power output mechanism is connected with the main transmission shaft through the transmission belt, and the tensioning wheel abuts against the transmission belt. Power output is installed on the right side of the whole machine, and the problem of complex transmission of the whole machine is solved. Combination and separation of a rear working device are controlled by pressing or not pressing of the transmission belt between the power output mechanism and the main transmission shaft. The transmission route of the whole machine is simple, transmission is reliable, the fault occurrence probability is reduced, the maintenance cost is reduced, the maintenance time is shortened, and the user income is increased.
Owner:LOVOL HEAVY IND

PWR drive line cold state test device

The invention discloses a cold-state test device for a drive line of a pressurized water reactor, which includes a simulated top cover assembly and a simulated hanging basket assembly located between the control rod drive mechanism and the guide tube assembly, and the simulated top cover assembly and the simulated hanging basket assembly are connected to form a cavity The body structure is also equipped with a control rod guide assembly in the cavity. The upper end of the control rod guide assembly is connected with the control rod driving mechanism, and the lower end of the control rod guide assembly is connected with the shroud assembly. The simulated fuel and control rod assemblies are located in the shroud assembly. A simulated pressing component is also installed between the control rod guide component and the simulated hanging basket component. The invention has the function of simulating the prototype stack to carry out the test of the drop characteristics of the control rod assembly and the influence of different operating environment conditions such as drive line eccentricity and flow change on the drop performance. The obtained test results are accurate and can be used to verify the control rods. The rationality and reliability of the design of the drive line guide structure provide the necessary test basis for the design of the drive line.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

A wireless charging system and method for electric vehicles with storage and deviation correction functions

ActiveCN109383314BImprove wireless charging transmission efficiencyEnsure safetyBatteries circuit arrangementsCharging stationsElectric carsElectric vehicle
The invention discloses an electric car wireless charging system and method with storage and deviation rectification functions. The system comprises an underground pit layer, a parallel connection mechanism, a storage covering device, a ground layer, a primary coil, a secondary coil and an electric vehicle. The parallel connection mechanism is fixed to the underground pit layer, and the primary coil is placed above the parallel connection mechanism. The storage covering device is parallel to the ground and can move horizontally, and a wireless charging emission outlet can be opened and closed.The secondary coil is fixed to the lower side behind the electric vehicle. When an automobile is parked above the charging device, the storage covering device is turned on, and the primary coil is automatically aligned to the secondary coil under the effect of the parallel connection effect. When charging is completed, the primary coil is stored under the ground under the effect of the parallel connection effect, and the emission outlet is closed by the storage covering device. Storage and deviation rectification of the wireless charging process of the electric vehicle can be achieved, the electric vehicle wireless charging efficiency is effectively improved, and the charging process is more convenient.
Owner:YANSHAN UNIV
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