46 results about "Selective transfer" patented technology

The invention discloses chiral boryl alcohol and a preparation method thereof, and belongs to the technical field of organic synthesis. The preparation method comprises the following step: in the presence of a catalyst and a transfer hydrogenation reagent, carrying out selective transfer hydrogenation reaction on acyl boron to generate chiral boryl alcohol. According to the method disclosed by the invention, the core skeleton of the chiral boryl alcohol is prepared with high selectivity through asymmetric transfer hydrogenation of acyl boron, the synthetic route is direct, and the atom economy is high; raw materials and catalysts are cheap and easy to obtain, reaction conditions are mild, operation is simple, and reaction is efficient.

The invention belongs to the technical field of energy storage, and discloses a covalent organic framework film with a sandwich structure as well as a preparation method and application of the covalent organic framework film. The preparation method comprises the following steps: carrying out condensation reaction on 2, 2 '-benzidine disulfonic acid and trialdehyde phloroglucinol to prepare a self-supporting covalent organic framework membrane, dip-coating the self-supporting covalent organic framework membrane in a polybenzimidazole solution, and carrying out phase inversion to prepare the covalent organic framework membrane with a sandwich structure. According to the invention, selective transfer of protons is realized by using a pore structure and a sulfonic acid group in the covalent organic framework, vanadium ion permeation is hindered, and meanwhile, in the battery assembly and operation process, the polybenzimidazole layers on the two sides play a role in protecting the covalent organic framework membrane. The prepared membrane has high proton selectivity and battery efficiency.

This invention provides an addressable transfer device and a addressable transfer method. The addressable transfer device includes: a transfer substrate; a driving substrate disposed on one side of the transfer substrate; a plurality of debonding light sources disposed at intervals on the side of the driving substrate away from the transfer substrate, the plurality of debonding light sources being electrically connected to the driving substrate, the driving substrate being used to illuminate or deactivate a target debonding light source among the plurality of debonding light sources; and a photo-debonding transfer head disposed on the driving substrate and covering the plurality of debonding light sources, the photo-debonding transfer head being used to adhere microelectronic components and, after being irradiated by the target debonding light source, release the corresponding microelectronic components to a target substrate. The addressable transfer device of this embodiment can achieve selective transfer of microelectronic components, improving transfer efficiency and transfer yield.

This invention provides a mass transfer method, a display device, and a method for manufacturing the same. The method involves bonding the light-emitting structure to a first temporary substrate, thereby encapsulating each LED chip with a sensing material. Then, the growth substrate is removed, and a second temporary substrate with sensing material on its surface is aligned and bonded to the side of the first temporary substrate closest to the LED chip. Next, the first temporary substrate is debonded and removed, and the sensing material is removed using a peeling process to expose the surface of each LED chip. This achieves chip flipping, allowing the selective transfer of the LED chips to the display panel, thus realizing the transfer of LED chips from the wafer to the display panel.

A method of fabricating a micro-LED display, the method comprising: providing a micro-LED wafer comprising an array of LEDs deposited on a growth substrate; depositing an adhesion layer, e.g. photores

1. The name of the design product: automatic transfer switch controller. 2. The use of the design product: used for circuit control of automatic transfer switch, which can realize automatic transfer of normal power supply or standby power supply, and can also realize selective transfer between two power supplies according to the needs of the load. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best shows the design points: perspective view.

The application provides a selective transfer method of an LED chip, a light-emitting substrate and a display panel. The selective transfer method of the LED chip comprises the following steps: arranging a plurality of first electrode layers on a first transparent substrate; arranging a barrier wall on each first electrode layer to form a containing groove; adding liquid crystals with different threshold voltages into each containing groove; arranging a second electrode layer on a second transparent substrate; assembling the first transparent substrate and the second transparent substrate together to form a temporary substrate; coating a photolysis adhesive layer on one side of the temporary substrate; bonding an LED chip on the photolysis adhesive layer and arranging the LED chip to correspond to the first electrode layer; providing a transfer member connected with the LED chip; and using a laser to irradiate the temporary substrate from the side of the temporary substrate away from the photolysis adhesive layer, and transferring the LED chip separated from the photolysis adhesive layer to a driving backplane through the transfer member. The application can be realized by using common laser equipment, the equipment has high maturity, and the purchase cost of the equipment is lower.

The invention provides a pulse laser-assisted nondestructive transfer method for a fine structure of a flexible substrate. The method comprises the following steps: firstly, preparing the fine structure to be transferred on a hard substrate; then, the binding force between the to-be-transferred structure and the flexible substrate is adjusted through interface modification; then irradiating the hard substrate-to-be-transferred fine structure interface by using pulse laser subjected to spatial light field shaping, and mildly weakening the binding force between the to-be-transferred structure and the hard substrate under the condition that the to-be-transferred structure is not damaged by ablation or decomposition; and finally, the flexible film is uncovered, and the to-be-transferred structure in the irradiated area is transferred to the flexible film without damage. According to the method, a complex technological process in a wet transfer method and a sacrificial layer transfer method is avoided, no obvious thermal, mechanical or chemical damage is caused to the structure, the structures such as a multi-layer composite film and an ultrathin film with a large width-to-thickness ratio can be selectively transferred to a flexible film in one step with high technological flexibility, and the transfer efficiency and the material adaptability are effectively improved.

The present invention relates to a transfer apparatus using light, and a transfer method using same, the apparatus having a recessed stamp during pick-up so as to perform perfect pick-up, and changing the shape of the stamp from a recessed shape to a flat or protruding shape so that perfect release can be performed. According to the present invention, a chip-type electronic component can be transferred without damage, and a large amount of electronic components can be rapidly transferred. In addition, selective transfer and also repair of electronic components, according to a specific pattern, are possible.

A system for ashing is disclosed. The system may include a chamber that includes an inlet for receiving the medium into the chamber and an outlet for expelling the medium. The system may also include a first diffuser plate positioned between the first volume and the second volume and configured to split the medium received from the inlet into one or more pathways. A second diffuser plate may be positioned between the second volume and the third volume, configured to allow selective transfer of the medium along the one or more pathways to the substrate. The system may further include a support structure within the third volume and coupled to the chamber, and a gapped airflow modulator configured to modulate a flow of the medium.

A method and system for selective transfer of organizational data in case of a divestiture are disclosed. The method includes: exporting a system architecture for a first database of a first organization from a first database of the first organization including data intended for migration from the first organization to a second organization; creating a second database of the second organization, which is a target database to which the intended data is to be transferred, in a system of the second organization by importing the exported system architecture to the system of the second organization; extracting the intended data from the first database; and sending the extracted intended data to the second database of the second organization.

The present invention proposes a planetary rover inclined single pendulum transfer device and a transfer method thereof, belonging to the field of planetary rover transfer technology. The device solves the problem that the existing planetary rover transfer mechanism cannot reliably transfer the planetary rover to the lunar surface under various working conditions, cannot perform selective transfer, and cannot effectively separate the planetary rover and the lander. The device includes a planetary rover release mechanism, a pendulum, a release rope, a first motor, and a second motor. In the initial state, the planetary rover and the middle part of the pendulum are both connected to the lander, the planetary rover is connected to one end of the pendulum, and the other end of the pendulum is installed at the lower end of the lander. One end of the release rope is connected to the motor M2, and the other end of the release rope passes through the pendulum and is connected to the planetary rover through the planetary rover release mechanism. The upper end of the lander is installed with a motor M1. The device is mainly used for planetary rover transfer.

What is disclosed is a method of selectively transferring micro devices from a donor substrate to contact pads on a receiver substrate. Micro devices being attached to a donor substrate with a donor force. The donor substrate and receiver substrate are aligned and brought together so that selected micro devices meet corresponding contact pads. A receiver force is generated to hold selected micro devices to the contact pads on the receiver substrate. The donor force is weakened and the substrates are moved apart leaving selected micro devices on the receiver substrate. Several methods of generating the receiver force are disclosed, including adhesive, mechanical and electrostatic techniques.

The invention discloses a preparation method of chiral aryloxy substituted chiral diol, which comprises the following step: in the presence of a chiral catalyst and a transfer hydrogenation reagent, carrying out selective transfer hydrogenation reaction on aryloxy substituted asymmetric diketone to generate the chiral aryloxy substituted chiral diol. According to the method provided by the invention, the raw materials and the catalyst are cheap and easy to obtain, the reaction condition is mild, the operation is simple, and the reaction is efficient; through asymmetric transfer hydrogenation of aryloxy-substituted asymmetric diketone, the chiral aryloxy-substituted chiral diol core skeleton is prepared with high selectivity, the synthesis route is direct, and the atom economy is high.

The invention discloses automatic feeding and discharging equipment for an inductance paint spraying room, which belongs to the technical field of wood board paint spraying and comprises a main conveying belt, a first paint spraying line, a second paint spraying line and a return belt. The first paint spraying line communicates with the main conveying belt through a first transfer table, and the second paint spraying line communicates with the main conveying belt through a first transfer table. And a second transfer table is arranged between the second paint spraying line and the first paint spraying line. The return belt is located between the second transfer table and the main conveying belt. Wood boards are conveyed among different working procedures through the main conveying belt, the first transfer table conveys the wood boards from the main conveying belt to the first paint spraying line or conveys the wood boards back to the main conveying belt through the second paint spraying line, and the second transfer table is responsible for selective transfer between the first paint spraying line and the second paint spraying line and can be communicated with the return belt. And when serious defects of the painted wood board are detected, the painted wood board directly returns to the workbench to be treated, and invalid spraying does not need to be continuously carried out.

The invention discloses an M-POPs catalyst and a preparation method and application of the M-POPs catalyst in catalyzing alpha, beta-unsaturated aldehydes to generate unsaturated alcohols, and the preparation method of the M-POPs catalyst comprises the following steps: adding a porous organic polymer monomer, a metal carbonyl complex and a solvent into a reaction kettle, heating to 120-180 DEG C, and reacting for 4-12 hours; filtering to obtain filter residues, washing and drying to obtain the M-POPs catalyst. The M-POPs catalyst disclosed by the invention is easy to prepare, low in price and easy to recycle; the catalyst has good alpha, beta-unsaturated aldehyde selective transfer hydrogenation catalytic activity and stability; the method is mild in preparation condition, low in equipment requirement and suitable for industrial production. The M-POPs catalyst disclosed by the invention is mild in catalysis condition, green, efficient, simple to operate, low in cost and suitable for industrial production.

A depalletizing system for removing frozen blocks of goods stacked in layers on a pallet comprises a receiving surface, a detaching unit configured to detach a top layer of frozen blocks from an underlying layer, and a transport unit configured to push all or part of the detached top layer across the underlying layer and onto the receiving surface. The transport unit includes a first row of individual carrier arms, each being independently movable between a lifted and a lowered configuration. A control unit is configured to instruct each carrier arm to assume a specific configuration.

This invention proposes a three-stage linkage deployment and transfer device and method for a rover, belonging to the field of rover transfer technology. It solves the problems of existing rover transfer mechanisms being unable to reliably transfer the rover to the lunar surface under various operating conditions, lacking selective transfer capabilities, and failing to effectively separate the rover from the lander. It includes a release rope, a deployment rope, a first motor, a second motor, and a linkage assembly. The linkage assembly includes a first linkage rod, a second linkage rod, and a third linkage rod. The top end of the first linkage rod is installed at the lower end of the lander, and the tail end of the first linkage rod is connected to the top end of the second linkage rod. The tail end of the second linkage rod is connected to the top end of the third linkage rod. One end of the deployment rope is connected to motor M2, and the other end of the deployment rope is installed at the connection between the first and second linkage rods. One end of the release rope is connected to motor M1. It is mainly used for rover transfer.

Lock device for an electronic locking system, the lock device comprising an input member arranged to rotate about an input rotational axis; an output member arranged to rotate about an output rotational axis; an energy harvesting arrangement configured to generate electric energy from rotation of the input member in a first direction about the input rotational axis; and a selective transfer device movable between a locking state, in which the output member cannot be rotated about the output rotational axis by means of rotation of the input member about the input rotational axis, and an unlocking state, in which the output member can be rotated about the output rotational axis by means of rotation of the input member in the first direction about the input rotational axis; wherein the transfer device is powered by the energy harvesting arrangement. An electronic locking system and a method are also provided.

The invention discloses chiral boryl diol and a preparation method thereof, and belongs to the technical field of organic synthesis. The preparation method comprises the following step: in the presence of a catalyst and a transfer hydrogenation reagent, carrying out selective transfer hydrogenation reaction on diacyl boron to generate chiral boryl diol. According to the invention, through asymmetric transfer hydrogenation of diacyl boron, the core skeleton of chiral boryl diol is prepared with high selectivity, the synthetic route is direct, and the atom economy is high; raw materials and catalysts are cheap and easy to obtain, reaction conditions are mild, operation is simple, and reaction is efficient.

Boehmite catalyst rich in FLPs for olefinic aldehyde selective transfer hydrogenation, mild preparation method and application thereof belong to the field of nano-catalysis and are an AlOOH catalyst with FLPs.Step 1, ammonia solution is added into an aqueous solution of aluminum nitrate to obtain a mixed solution; step 2, urea and cetyltrimethylammonium bromide are added into the mixed solution, and the solution is stirred until a sol is formed; the sol is subjected to hydrothermal reaction at 80-120 DEG C to obtain a white powder; step 3, the white powder is calcined in air at 550-850 DEG C to obtain an aluminum oxide solid; step 4, the aluminum oxide solid is stirred in cyclohexane, deionized water is added dropwise, and the liquid is evaporated after being heated to obtain a boehmite catalyst. The catalyst is applied to realize selective hydrogenation of alpha, beta-unsaturated to generate unsaturated alcohol. The catalyst has the advantages of high catalytic activity, conversion rate > 95%, selectivity > 90%, simple preparation process, mild conditions and high stability.

A data responder may determine a selection between granting a request for a priority byte to be prioritized for transmission ahead of other bytes via a bus and ignoring the request. Granting the request may include transferring a block of bytes of data across multiple clock cycles with the priority byte transferred in a first clock cycle before other clock cycles of the multiple clock cycles. Ignoring the request may include transferring the block across multiple clock cycles with the priority byte transferred in a clock cycle after the first clock cycle. The data responder may receive the request from a data requestor. The data responder may assert a signal on a wire, connected to the data requestor, to indicate a grant of the request and a transfer of the priority byte in the first clock cycle.

Systems, apparatuses, and methods related to deep learning accelerators and memory are described. For example, a wearable electronic device can be configured to execute instructions having matrix operands and configured with: a housing to be worn on a person; a sensor having one or more sensor elements to generate measurements associated with the person; a random access memory to store instructions executable by the deep learning accelerator and to store matrices of an artificial neural network; a transceiver; and a controller to monitor an output of the artificial neural network generated using the measurements as input to the artificial neural network. Based on the output, the controller can control selective storage of measurement data from the sensor and / or selective transfer of data from the wearable electronic device to a separate computer system.

The utility model discloses an unmanned aerial vehicle reinforcing frame positioning structure forming mold and belongs to the technical field of aviation composite material forming. The problems that in the prior art, the cost of a reinforcing frame forming tool cannot be reduced, and better positioning forming is needed to guarantee the accuracy of a molded surface are solved. Each loose piece is composed of a fixing part and a forming part which are integrally formed, the fixing part of each loose piece and the base assembly are positioned and tightened through a positioning pin and a screw, the forming parts of the loose pieces jointly form a product model, and a stripping groove is formed in the forming part of each loose piece. According to the utility model, the circumferential multi-section movable block is adopted, so that the demolding problem of large-size frame product parts is solved, and the forming quality of the parts is improved. The forklift grooves and the hanging rings are arranged, so that the problem that tools are inconvenient to transfer is solved, multi-selectivity transfer of the tools is facilitated, and operation of workers is facilitated. The base assembly is of a square steel frame welding type structure, the overall strength of the frame is improved, production and machining time is saved, and manufacturing cost is saved.

Provided is a high-integration semiconductor device resulting from the following steps: a first step of forming a sacrificial layer on an epitaxial substrate and forming an electronic device layer on the sacrificial layer; a second step of etching the electronic device layer and the sacrificial layer corresponding to an active device region, so as to form an epitaxial template in which an epitaxial pattern is implemented; a third step of forming, on the epitaxial template, a first insulation layer that encompasses the epitaxial pattern; a fourth step of etching a part of the first insulation layer that encompasses a target epitaxial pattern to be transferred, so as to expose the sacrificial layer, and forming a first bonding layer on the electronic device layer; a fifth step of forming a second insulation layer on a target substrate, and etching a part of the second insulation layer corresponding to the first bonding layer, so as to form a stepped second bonding layer; a sixth step of mounting the epitaxial template on the target substrate so that the first bonding layer and the second bonding layer are bonded to each other; and a seventh step of removing the sacrificial layer exposed by means of the selective etching process, so as to selectively transfer the electronic device layer onto the active device region on the target substrate, wherein the fourth to seventh steps are repeatedly performed by etching a part of the first insulation layer that encompasses another target epitaxial pattern to be transferred, and thus the electronic device layer is selectively transferred onto each active device region on the target substrate.

The invention discloses a preparation method of chiral hydroxyl cyclobutenone, which comprises the following step: in the presence of a chiral catalyst and a transfer hydrogenation reagent, carrying out selective transfer hydrogenation reaction on cyclobutenedione to generate the chiral hydroxyl cyclobutenone. According to the method provided by the invention, the raw materials and the catalyst are cheap and easy to obtain, the reaction condition is mild, the operation is simple, and the reaction is efficient; through asymmetric transfer hydrogenation of cyclobutenedione, the chiral hydroxyl cyclobutenone core skeleton is prepared with high selectivity, the synthesis route is direct, and the atom economy is high.

A container for selective transport of samples of biological material or of biological origin suitable for containing at least a fluid or liquid and / or for containing at least a portion of a collecting device, the container having a selective passage portion configured to prevent exit of a fluid or liquid from the container, through the passage portion, at least in at least an operating sealed condition defined at least by a rest state of the container or by a first value of mechanical shaking of the container and / or by a first value of relative centrifugal force to which the container is subjected, and configured selectively to enable exit of the fluid or liquid from the container, across the passage portion, at least in an operating passage condition, defined at least by a corresponding second state of mechanical shaking of the container and / or wherein the container is subjected to a corresponding second relative centrifugal force.

This invention discloses a magnetically assembled microdevice transfer assembly structure and method. The magnetically assembled microdevice transfer assembly structure includes: a temporary transfer microdevice with micro / nano scale, comprising the microdevice and a magnetic connection layer, the magnetic connection layer being detachably fixed to the microdevice; and a magnetic platform, comprising a magnetic generating layer and a patterned soft magnetic material layer sequentially arranged along a first direction. The magnetic generating layer is at least used to provide an adjustable magnetic field, and the magnetic generating layer and the magnetic connection layer located within the magnetic field are magnetically attracted. The patterned soft magnetic material layer is at least used to guide magnetic field lines in the magnetic field, thereby enabling the temporary transfer microdevice with micro / nano scale to be magnetically attracted and fixed to the magnetic platform, or enabling the temporary transfer microdevice with micro / nano scale to detach from the magnetic platform. This invention enables selective transfer of RGB three-color modules and subsequent yield testing and repair work by selectively adsorbing or retracting microdevices via magnetic attraction.

The invention discloses a regulation and control method for catalyzing transfer hydrogenation and etherification of biomass-based aldehydes, which comprises the following steps: synthesizing a mesoporous molecular sieve carrier by a hydrothermal method, preparing a catalyst loading 5-20wt% of Zr by an equivalent-volume impregnation method, and regulating selective transfer hydrogenation and etherification of a biomass-based aldehyde compound in an alcohol solvent by controlling temperature programming, calcining and activating of the catalyst. And selective distribution of hydrogenation products and etherification products is realized. Taking furfural and cinnamyl aldehyde as examples, under the condition of reaction for 2-12 hours at 100-180 DEG C in an alcohol solvent, an unactivated catalyst can catalyze complete conversion of a substrate, and the selectivity of hydrogenated products furfuryl alcohol and cinnamyl alcohol can reach 94% and 85%; after the temperature of the catalyst is raised to 100-500 DEG C for activation, the main product is changed from alcohol to ether, and the selectivity of furfuryl ether and cinnamyl ether of etherification products can reach 65% and 60%; the selectivity of hydrogenation and etherification reactions can be further improved by regulating and controlling reaction conditions.