181 results about "Batch fabrication" patented technology

Processing techniques are disclosed for batch fabrication of microstructures comprising an oxide mask on a substrate with submicron openings formed therein, and microstructures having deep-submicron, high aspect-ratio etched trenches, using conventional optical photolithography. Exemplary high aspect-ratio etched-trench microstructures that may be produced include single crystal resonators and sensors.

A microscale cylindrical ion trap, having an inner radius of order one micron, can be fabricated using surface micromachining techniques and materials known to the integrated circuits manufacturing and microelectromechanical systems industries. Micromachining methods enable batch fabrication, reduced manufacturing costs, dimensional and positional precision, and monolithic integration of massive arrays of ion traps with microscale ion generation and detection devices. Massive arraying enables the microscale cylindrical ion trap to retain the resolution, sensitivity, and mass range advantages necessary for high chemical selectivity. The microscale CIT has a reduced ion mean free path, allowing operation at higher pressures with less expensive and less bulky vacuum pumping system, and with lower battery power than conventional- and miniature-sized ion traps. The reduced electrode voltage enables integration of the microscale cylindrical ion trap with on-chip integrated circuit-based rf operation and detection electronics (i.e., cell phone electronics). Therefore, the full performance advantages of microscale cylindrical ion traps can be realized in truly field portable, handheld microanalysis systems.

A laser direct write method creates true three dimensional structures within photocerams using an focused pulsed ultraviolet laser with a wavelength in a weakly absorbing region of the photoceram material. A critical dose of focused laser UV light selectively exposes embedded volumes of the material for subsequent selective etching. The photoceram material exposure is nonlinear with the laser fluence and the critical dose depends on the square of the per shot fluence and the number of pulses. The laser light is focused to a focal depth for selective volumetric exposure of the material within a focal volume within the remaining collateral volumes that is critically dosed for selecting etching and batch fabrication of highly defined embedded structures.

The invention discloses a metal needle tube array component which comprises a metal needle tube array, a structural adhesive substrate and a locating piece. The metal needle tube array comprises at least two metal tubes. The two metal tubes are used for transmitting liquid, are arrayed at a preset interval and are fixed on the structural adhesive substrate. One end of each metal tube is used as a needle tip for puncture, and the other end of each metal tube penetrates through the structural adhesive substrate and is inserted in a locating through hole of the locating piece connected with the structural adhesive substrate. The metal needle tubes and the locating piece are sealed and combined into a whole in an adhesive mode by the structural adhesive substrate so that liquid can only pass through the inside of the metal needle tubes. The invention further discloses an injection needle head based on the metal needle tube array component. Lot manufacturing, with low cost and a high finished product rate, of the he metal needle tube array component and the injection needle head can be realized by utilization of existing mature processing technology and specified conventional medical materials. Blanks in relevant application fields are expected to be filled. Consequently, enormous economic benefit and social benefit can be created, and contribution is conducted to health and beautiful life of human beings.

A probe assembly for an instrument and a method of manufacture includes a substrate and a cantilever having a length independent of typical alignment error during fabrication. In one embodiment, the probe assembly includes a buffer section interposed between the substrate and the cantilever. The cantilever extends from the buffer section and a portion of the buffer section extends beyond an edge of the substrate. The portion of the buffer section is more stiff than the cantilever. The corresponding method of producing the probe assembly facilitates batch fabrication without compromising probe performance.

A method of batch fabrication using established photolithographic techniques allowing nanoparticles or nanodevices to be fabricated and mounted into a macroscopic device in a repeatable, reliable manner suitable for large-scale mass production. Nanoparticles can be grown on macroscopic “modules” which can be easily manipulated and shaped to fit standard mounts in various devices.

The invention discloses a reflection-type long grating process method for a laser-assisted roll pressing manufacturing machine tool. The method comprises the following steps that: outgoing beams of excimer laser are modulated into linear beams with uniform light intensity distribution; the linear beams directionally irradiate a pressing region from beginning to end; a metal material on the surface of a grating ruler blank in the pressing region is instantly heated to be at a temperature close to a melting point of the metal material in the instant of pressing, so that the metal material in the region has certain flowability and fills a groove-shaped concave cavity with a grating microstructure on a quartz roll pressing mold under small pressing force; and after a heated region is separated from a laser irradiating region, the metal material is cooled and cured instantly, so that the form of the grating line grain microstructure is maintained, and the high-precision replication of grating line grains from a roll pressing mold to the grating ruler blank is completed. The method disclosed by the invention is suitable for the high-precision and low-cost batch manufacturing of reflection-type long grating (more than one meter) and ultra-long grating (made from a couple of meters of, dozens of meters of and even hundreds of meters of metal belt materials), and has a good promotion value and good application prospect.

The invention provides an annular micro-fold optical lens and a preparation method thereof, and belongs to the field of optics and micromachining. The preparation method is completed by the following steps of: firstly preparing a soft material film; fixing the soft material film on a substrate with a hole, and then pulling or pushing the film through the preset position of the hole to form a conical structure; and depositing a hard material film on the surface of the conical structure or hardening the surface of the conical structure and then stopping pulling or pushing, to form periodical annular micro-folds on the surface of the soft-hard two-layer film. The annular micro-fold optical lens provided by the invention has similar optical performance to the conventional pyramidal lens; the optical parameters (such as convergence angle, divergence angle and focal length) of the lens can be conveniently adjusted by controlling the process parameters of the preparation method; and compared with the conventional pyramidal lens, the annular micro-fold optical lens has huge advantages due to the characteristics of extremely-thin thickness, extremely-light weight, flexibility and low processing cost as well. The process for preparing the annular folds can also be applied to prepare optical lenses of large size and is suitable for batch fabrication.

The invention discloses a mold core with a copied natural biological super-hydrophobic surface as well as a preparation method and application of the mold core, and belongs to the technical field of preparation of hydrophobic surfaces. The method comprises the steps of putting a natural biological super-hydrophobic surface serving as a mother board into electroforming liquid using nickel sulfamate as a main salt to serve as a cathode, connecting a nickel plate serving as an anode to a pulse power supply and performing electroforming to obtain a cast layer copied with a super-hydrophobic surface structure; and then manufacturing an injection mold core by using the cast layer, installing the injection mold core on an injection mold and performing injection molding to obtain a super-hydrophobic polymer piece consistent with the natural biological surface structure. The super-hydrophobic surface matrix is selected from a natural biology and has a regular micro-nano structure and good hydrophobic performance, and the prepared super-hydrophobic polymer piece has relatively good bionic hydrophobic property. The mold core with the natural biological super-hydrophobic surface, which is prepared by using an electroforming process, can realize large-batch manufacturing of the super-hydrophobic polymer piece consistent with the natural biological super-hydrophobic surface mother board structure.

The invention discloses a whole-row transplantation device for glass slides. The device comprises a rack, a left arrangement mechanism, a right arrangement mechanism, a carrying disk feeding mechanism, a material waiting station, a slide arrangement station and a discharge station, wherein inlet ends and outlet ends of the material waiting station, the slide arrangement station and the discharge station along the rack are horizontally disposed on a platform of the rack in a head-tail adjacent manner; the carrying disk feeding mechanism is located on the left side of the inlet end of the rack and is adjacent to the material waiting station; and the left arrangement mechanism and the right arrangement mechanism are disposed on the platform of the rack and located on the left side and the right side of the slide arrangement station. The device disclosed by the invention has the beneficial effects that a plurality of glass slides with different specifications and sizes can be placed quickly without replacement of a fixture, so manpower is saved and working efficiency is increased; reliable guarantee is provided for rapid placement of the glass slides during batched fabrication of detection specimens; and the market application value is high.

The invention discloses a lower stator of a guiding motion valve core of an automobile exhaust backflow controlling valve, comprising a housing, a gasket and a stator, wherein a step is arranged at the upper part of the stator; holes are arranged at the bottom surface of the housing and in the middle of the gasket; and the gasket and the housing are successively sleeved on the step and are fixed through being riveted on the top of the step. The lower stator provided by the invention has the advantages that: the lower stator of the guiding motion valve core of the automobile exhaust backflow controlling valve is disassembled to split type parts and then assembled to a whole; each part are independently processed; and therefore, the processing difficulty is reduced, the raw material loss is decreased, the batch fabrication can be formed and the production efficiency is increased.

The invention provides an MEMS vacuum gauge and a preparation method thereof. The method comprises the following steps of providing a first substrate and a second substrate, forming an ohmic contact layer on the first surface of the first substrate, forming a bonding layer on the first surface of the first substrate, forming a first electrode layer and a suspension resistance layer on the first surface of the second substrate, performing anodic bonding on the bonding layer on the first surface of the first substrate and the first surface of the second substrate to form a first cavity located among the first substrate, the bonding layer and the first electrode layer and a second cavity located among the first substrate, the bonding layer and the suspension resistance layer, corroding the second surface of the second substrate until the first electrode layer and the suspension resistance layer are reached, and forming a lead layer on the first electrode layer and the ohmic contact layer, and forming a second electrode layer on the suspension resistance layer. According to the method, the measuring range of the MEMS vacuum gauge is effectively improved, and the vacuum gauge has the advantages of being small in size, high in precision, good in consistency, easy to manufacture in batches and low in cost.

The invention discloses a crack flexible strain sensor based on a graphene-gold composite film and a preparation method thereof. The preparation method comprises the following steps of preparing a metal electrode on a PDMS flexible substrate through a mask method, forming a quasi-continuous graphene film by using a liquid level self-assembly method, transferring the graphene film to a flexible substrate covering the sensing unit mask through a pulling method, performing magnetron sputtering of nanogold on the surface of the graphene to prepare a graphene-gold composite film, and pre-stretching the PDMS flexible substrate to enable the graphene-gold composite film to generate an initial crack, thereby obtaining the flexible strain sensor based on the graphene-gold composite film crack. The process conditions are mild, array batch manufacturing is easy, the prepared sensor has high sensitivity and a large linear range, the sensitivity can be improved through a mask patterning method, and the sensor is suitable for being integrated in a sensing system to complete strain measurement in a wide range.

The invention discloses a method for assisting in forming a composite material propeller blade by using air bag inflation. A flexible air bag is adopted to perform inflation manufacturing on a skin shell of the propeller blade, and then a foaming process is adopted to manufacture an internal core material. The method specifically comprises the steps of carrying out forming tool design, carrying out skin prepreg laying, placing flexible air bag, carrying out die assembly installation, carrying out inflation curing, carrying out inner core filling and the like. According to the method, the pressure applied by compressed air can be uniformly and accurately transmitted, the thickness uniformity of a skin structure is guaranteed, meanwhile, the internal quality of the skin is guaranteed, and the problem of sandwich pressure loss or insufficient filling in a die pressing process is avoided; and compared with a die pressing and autoclave process, the method has the advantages that the operation is simple, the equipment cost is relatively low, and the method can be used for large-batch manufacturing. In addition, the flexible air bag used in the method can be repeatedly used, the materialsare easy to purchase, the manufacturing process is simple, the production cost is effectively reduced, and the manufacturing period is effectively shortened.

The invention discloses a composition for drilling and pouring, a preparation method thereof and wall protection mud, and relates to the technical field of wall protection materials. The composition for drilling and pouring comprises a wall protecting agent potassium polyacrylate, a tackifier polyacrylamide, an instant solvent sodium chloride, a precipitator polyaluminum chloride and a stabilizersodium hydroxide; after being dissolved in water, the composition has the advantages of being good in wall protection effect and capable of improving the pile forming quality. The preparation method of the composition for drilling and filling comprises the following steps: uniformly stirring the raw materials in the composition in a closed space to obtain the composition; the preparation method has the advantages of simple preparation steps, easiness in implementation and convenience in batch manufacturing and production. The wall protection mud comprises the composition and water mixed with the composition in use. The wall protection mud has the advantages of being good in wall protection effect and capable of improving the pile forming quality.

The invention discloses an automobile composite pedestrian protection beam. The automobile composite pedestrian protection beam comprises a protection beam body formed through integrated compression molding, an energy absorption box used for absorbing impact force borne by the protection beam, and a rectangular aluminum sheet connected between the energy absorption box and the protection beam body, wherein the protection beam body is made of a glass fiber composite material, the surface of the protection beam body is reinforced by carbon fibers or aramid fibers to improve the strength of the protection beam, and the protection beam body and carbon fibers or aramid fibers are connected in an adhesive mode; the section of the protection beam is designed to be M-shaped, and continuous geometric reinforcing ribs are arranged on the inner side of the protection beam; and in order to be effectively connected with the energy absorption box, the two ends of the protection beam are each provided with a sunken cuboid groove, and the bottom surfaces of the grooves are connected with the energy absorption box through the aluminum sheets. The pedestrian protection beam is manufactured by adopting a compression molding process, the process is simple, and large-batch manufacturing can be realized; and the composite material is adopted for design, the dead weight is effectively reduced while the strength of the protection beam is guaranteed, and the lightweight design is achieved.