31results about How to "Good alignment" patented technology

A method for manufacturing a semiconductor device includes forming a plurality of trenches for element isolation and a plurality of trenches for alignment mark on a substrate. The substrate has an active region. The method also includes laminating an oxide film on the substrate and over both of the trenches. The method also includes etching the oxide film using a resist mask that masks the element isolation trenches, so that the oxide film laminated in the active region and the oxide film laminated in the alignment mark trenches are removed. The method also includes polishing a surface of the substrate to planarize or smooth the surface of the substrate. Accordingly, those portions of the oxide film which project from the substrate surface are eliminated and the oxide film remains only inside the element isolation trenches. This divides the active region into a plurality of individual active regions for the respective semiconductor elements. The method also includes positioning the resist mask using the alignment mark trenches. The resist mask is used to fabricate the semiconductor elements in the active regions of the substrate.

An apparatus for treating a fracture of the distal radius of a patient, having a pivot pin configured to engage the radius at an attachment point distal to the fracture, and a handle assembly configured to engage the pivot pin dorsal to the patient's hand is presented. The pivot pin is configured to insert through and fixedly engage at least a portion of the distal fracture bone fragment associated with the radius. The handle assembly, once coupled to the pivot pin, provides adjustment of the position of the distal fracture bone fragment.

The invention relates to the field of metal material solidification control, in particular to a method capable of reducing mixed crystal formation at a section abrupt-change portion of a single-crystal high-temperature alloy. In an orientated growth process of the single-crystal high-temperature alloy, the section abrupt-change portion is easily super-cooled locally to form mixed crystal as a result of too quick heat dissipation. The method is characterized in that direct-current current is an oriented condensation process of a single-crystal high-temperature alloy casting, and the current forms segregation at the section abrupt-change portion by utilizing resistivity difference between a solid phase and a liquid phase as well as among melts of different temperatures, so that a part with arelatively low temperature generates more joule heat, and local super-cooling at the section abrupt-change portion is alleviated or eliminated, and therefore, mixed crystal nucleation and growth trend is reduced or eliminated. Direct-current current is applied in a single-crystal high-temperature alloy growth process to reduce formation of mixed crystal at the section abrupt-change portion, so that a single-crystal organization with good orientation consistency and a uniform and compact organization is obtained, and therefore, the problem that mixed crystal is liable to form at the section abrupt-change portion while a single-crystal high-temperature alloy component is cast at present is solved.

A method for preparing a one-dimensional nanomaterial-based sensor is disclosed. The method includes dropping a suspension of a one-dimensional nanomaterial onto a substrate; combing the suspension onthe substrate with a tool brush in a constant speed; then allowing the product to stand; drying the substrate so that the one-dimensional nanomaterial is more closely bonded with the substrate through the van der Waals force; after photoresist removing, allowing the solution on the surface of the substrate to volatize so that the one-dimensional nanomaterial is uniformly arranged on the substratein a large area; forming an interdigital electrode pattern through a photoetching process; and stripping after the substrate surface is plated with gold to obtain the one-dimensional nanomaterial-based sensor. The sensor has characteristics of excellent electrical properties and high sensitivity. The method is suitable for a plurality of one-dimensional nanomaterials such as zinc oxide and silicon, and is suitable for different substrates such as silica and glass. The distribution density and arrangement uniformity of the one-dimensional nanomaterial can be achieved through changing the dimension of an assembling tool, and large-area production is hoped to be possible if a large-dimension precise mechanical assembling tool is put into use. The method has a wide application prospect in thefield of manufacturing and integration of nanometer devices.

The invention provides a preparation method for preparing a carbon fiber compound electrolysis electrode. The preparation method comprises the following steps that S1, two carbon fiber strips are superposed up and down and are mutually perpendicular; the carbon fiber strip located above serves as a first carbon fiber strip, and the carbon fiber strip located below serves as a second carbon fiber strip; and the first carbon fiber strip and the second carbon fiber strip are in straightly stretched states and are tightly contacted; S2, the second carbon fiber strip is folded towards the directionwhere the first carbon fiber strip is located; and after the second carbon fiber strip is folded, the second carbon fiber strip clamps the first carbon fiber strip; S3, the first carbon fiber strip is folded towards the direction where the second carbon fiber strip is located; and after the first carbon fiber strip is folded, the first carbon fiber strip clamps the second carbon fiber strip; S4,the S2 and the S3 are sequentially repeated until the carbon fiber strips can not be folded, and a semi-finished product of the electrolysis electrode is obtained; and S5, the semi-finished product issubjected to heat treatment and pressure treatment, and the electrolysis electrode is obtained. The invention further provides the carbon fiber compound electrolysis electrode prepared by the preparation method.

The invention relates to the technical field of first-aid devices for the ultrasonic department, and provides an examination first-aid device for the ultrasonic department. The examination first-aid device comprises a cardio-pulmonary resuscitation machine, an examination couch and a plurality of supporting legs fixedly connected with the bottom face of the examination couch; cross bars are fixedly connected between sleeves of the supporting legs, and a pair of front and back symmetric adjusting mechanisms are rotationally connected between the cross bars and the bottom face of the examinationcouch; an electric push rod is fixed on any adjusting mechanism through a mounting base, and the electric push rod is fixedly connected to the other adjusting mechanism through the free end of the electric push rod; symmetric grooves are formed in the left side and the right side of a shell of the cardio-pulmonary resuscitation machine in a hollowed-out mode, and a transverse shaft in the front-back direction is fixedly connected in the grooves; convex sliding grooves are symmetrically formed in the left side and the right side of the top face of the examination couch, and the convex slidinggrooves sleeve a cross shaft of the cardio-pulmonary resuscitation machine through two groups of L-shaped connecting rods which are designed in a left-right symmetry mode; the cardio-pulmonary resuscitation machine is located over the examination couch. According to the device, a patient can be timely rescued in time, and the height of the examination couch can be conveniently adjusted.

The invention provides a GaN-based LED epitaxial structure preparation method for improving the crystal quality. A TMGa source is introduced for a period of time during epitaxial growth of a GaN-based LED epitaxial film and pre-baking of a growth substrate at high temperature, and then the growth substrate continues to be pre-baked at high temperature. The substrate and the environment for epitaxial growth are improved without increasing the process complexity, the whole LED epitaxial layer has higher crystal quality, higher brightness and higher electrical yield, the atomization phenomenon is effectively reduced, and the production cost is lowered.

The invention provides an arc-shaped laminated lithium battery and a lamination method thereof. The lamination method of the arc-shaped laminated lithium battery comprises the following steps that a continuous arc-shaped positive electrode belt, a continuous arc-shaped negative electrode belt and a continuous arc-shaped diaphragm belt are manufactured, the continuous arc-shaped positive electrode belt comprises a plurality of positive plates in mirror symmetry, and the continuous arc-shaped negative electrode belt comprises a plurality of negative electrode belts in mirror symmetry; the continuous arc-shaped diaphragm belt comprises a plurality of diaphragms in mirror symmetry; the continuous arc-shaped positive electrode belt, the continuous arc-shaped diaphragm belt and the continuous arc-shaped negative electrode belt are sequentially laminated to form a laminated core body; alternate folding operation is carried out on the laminated core body to obtain an arc-shaped laminated cell; and the arc-shaped laminated battery cell is put into an aluminum plastic sleeve, and the hot-pressing packaging operation is carried out to obtain the arc-shaped laminated lithium battery. According to the lamination method of the arc-shaped laminated lithium battery, burrs and dust can be effectively reduced or avoided, and the lamination flatness and stability are improved.

The invention provides an adjustable calibration-fluorescence detection cell on a refraction compensation column. Specifically, adjustable parts in the detection cell are mechanically bridged with a three-dimensional displacement platform, and excitation optical fiber-light window-collection optical fiber system is subjected to micron-scale three-dimensional calibration by matching observation holes in the periphery of the cell; meanwhile, the detection cell is tightly sealed by using sealing rings, a clamping sleeves and a blocking head, so that the long-term stability of a refraction compensation system is ensured after glycerin is dripped, and finally high detection sensitivity is obtained. The detection cell can independently replace device parameters, such as the inner and outer diameters of capillary tubes, excitation optical fibers and collection optical fibers, different application requirements can be adapt to.

The invention provides a semiconductor device and a preparation method thereof. The preparation method comprises the steps of providing a germanium-based semiconductor preparation body provided with asource region and / or a drain region, wherein doped impurities of the source region and / or the drain region are first N-type impurities; arranging a pre-epitaxial layer on an exposed surface of the source region and / or the drain region, wherein the pre-epitaxial layer comprises a base material and second N-type impurities doped in the base material; the base material comprises non-Ge IV group elements; and the doping concentration of the second N-type impurities is 1.0*10<20>cm<-3>-9.0*10<21>cm<-3>; injecting third impurities into the pre-epitaxial layer, so that the pre-epitaxial layer far away from the semiconductor preparation body is non-crystallized to form an epitaxial layer; arranging an electrode layer on the surface, far away from the source region and / or the drain region, of theepitaxial layer; and performing heat treatment on the semiconductor preparation body provided with the electrode layer to form source contact and / or drain contact. The contact resistance of the sourcecontact and / or the drain contact formed by the preparation method is low.

The invention provides a preparation method and application of a copper selenide nanosheet array for a sodium ion battery with adjustable interlayer spacing. The copper selenide nanosheet array is made of high-purity copper foil, a selenium source, sodium hydroxide, A strong reducing agent and an intercalation agent are used as raw materials, water is used as a solvent, and a reaction is performed at 20-80° C. for 0.5-4 h to obtain a copper selenide nanosheet array for sodium-ion batteries with adjustable layer spacing. The prominent feature of the present invention is that the distance between copper selenide layers can be regulated at a lower temperature, and the preparation method of the material is simple, the energy consumption is low, and it is easy to industrialized large-scale production; Controllable appearance and high specific surface area. When the material is used as an anode material for a sodium ion battery, it exhibits the advantages of high specific capacity, good rate performance and superior cycle performance. Therefore, the material is expected to be widely used in sodium ion batteries and other alkali metal ion batteries, thermoelectric materials and other fields.

The invention discloses a glass section monitoring mechanism, which belongs to the field of substrate glass production, and is characterized in that a bearing frame of the mechanism is provided with a synchronous belt linear guide rail module in the length direction, a sliding block of the synchronous belt linear guide rail module is provided with a monitoring device, and the bearing frame at one end corresponding to the monitoring device is provided with a glass placing table; and a ruler is arranged below the glass placing table. The mechanism can simultaneously monitor a glass cutting section and two adjacent surfaces off line, has video playback and picture extraction functions, can accurately position any point position in the length direction of glass, facilitates analysis of reasons affecting cutting and poor plate breaking, and correctly guides process adjustment.

The invention discloses a crossing operation abrasive disk structure and an operation method thereof and relates to the technical field of advanced manufacturing and automation. The crossing operationabrasive disk structure comprises a set of rectangular arrayed rotating parts and a set of abrasive disks mounted on the rotating parts. Each abrasive disk comprises a set of annular arrayed claw parts. The claw parts of the adjacent abrasive disks are arranged in a staggered mode. The end of each claw part is provided with an abrasive plate mounting disk. The periphery of each abrasive plate mounting disk is provided with a convex wall. The end, far away from a rotary center shaft of the corresponding abrasive disk, of each wall is provided with a notch. The end, far away from the rotary center shaft of the corresponding abrasive disk, of the bottom of each abrasive plate mounting disk is provided with a bulge, an abrasive plate mounted in each abrasive plate mounting disk is provided with an avoiding part corresponding to the bulge, the top end of each bulge is provided with a pressure sensor device, and the center of the bottom of each abrasive plate mounting disk is provided witha magnet. Through the crossing operation abrasive disk structure, the grinding efficiency is greatly improved; through attraction of the magnets and locating of the bulges, the abrasive plates are mounted firmly and are convenient to replace. The pressure sensors are used for detecting whether installation is qualified or not and the abrasive plates shift or not in the operating process, and automatic detection during the installation and operation process is realized.

A steel pipe combined guide bar is disclosed, wherein the steel pipe combined guide bar comprises steel wire parts and steel pipe parts. The guide bar is constituted by sleeving a plurality of steel pipe parts on the steel wire parts. The steel pipe is provided with 1-2 clamping slots. The steel pipe combined guide bar has the advantages that only a standard jacquard needle and a 364.3 measure are required for determining the zero point of the guide bar, due to the fact that the slots are separated from the steel wires; and a glue is used (before gluing, the pipe can rotate and move on the steel wire for aligning the position). The glue is conveniently dried after 3 minutes; and then a guide bar is formed by sleeving 13 pipes head-to-tail. The length of the guide bar can be determined as need. Odd number needle pitch and even number needle pitch can be arranged, accordingly meeting the requirements of different needle pitches.

A quantum rod display device has an enhanced alignment of the quantum rods that is achieved by employing an aligned block copolymer material to align the quantum rods. The display device may be a transflective display device. The display device includes a liquid crystal layer and a quantum rod structure optically coupled to the liquid crystal layer. The quantum rod structure includes an aligned block copolymer material including a first polymer strain and a second polymer strain that are aligned relative to each other, and quantum rods that are embedded within either the first polymer strain or the second polymer strain, and the quantum rods are aligned by the alignment of the polymer strain in which the quantum rods are embedded. The quantum rod structure may be unpatterned whereby the quantum rod structure emits light of a single color or a combined color emission, or patterned into regions whereby at least two of the regions include quantum rods that emit light of different colors. The quantum rods may include a functionalization ligand that renders the quantum rods preferentially soluble into the polymer strain in which the quantum rods are aligned.

The invention relates to a rotary dough molding machine (10). The rotary dough molding machine comprises: a frame (6), a die roller (4) rotatably mounted to the frame (6), a knife (3) for scraping dough from the die roller (4), said knife (3) extending along the die roller (4), and a driving means for moving the knife (3) between a scraping position and an inactive position, wherein the driving means comprises a first drive (1) acting on the first end (31) of the knife (3), and a second drive (2) acting on the second end (32) of the knife (3).

A transfer apparatus transfers a pattern of an original to a resin on a shot region of a substrate. The original includes a first surface and second surface which are surfaces opposite to each other. The first surface includes a pattern region where the pattern is formed, and the second surface includes a holding surface. The apparatus includes a plurality of holding units configured to hold the holding surface of the original, a plurality of driving units configured to drive the plurality of holding units, respectively, and a control unit configured to control driving of the plurality of holding units by the plurality of driving units to align the pattern region with the shot region of the substrate.

An open type spinning device has a spinning box shell (2) and a carding unit (4), the carding unit is connected with the spinning box shell (2) and pivotable around a pivot axis, the spinning box shell (2) can be opened and closed again through the carding unit (4), and the device also has a pneumatic supply conduit (16) extending from the spinning box shell (2) toward the carding unit (4) and a coupling device (18) connected to the supply conduit (16). The coupling device (18) can be controlled through swing of the carding unit (4), and includes a first coupling element (19) connected with the spinning box shell (2) and a second coupling element (20) connected with the carding unit (4). One of the coupling elements (19, 20) has a protruding rounding contact surface (21), and the other ofthe coupling elements (19, 20) has a rounding contact surface (22) complementary to the protruding rounding contact surface (21).

The invention relates to the technical field of the antenna, especially a RF antenna with a protection structure. The RF antenna comprises a reflective plate, multiple vibrators and wiring terminals are arranged on the reflective plate; the wiring terminals are connected with the vibrators through feeder lines; the RF antenna further comprises a box body protective shell with an opening at the top; the reflective plate is detachably fixed in the protective shell; an outer cover matched with the shape of the protective shell is covered at an upper part of the protective shell; the bottom edge of the outer cover is connected with the sidewall of the protective shell through multiple first connecting bolts; multiple sight openings are arranged on the top of the outer cover; sealing plates inparallel are arranged on the outer covers at two sides of the sight openings. The protective cover part is split into the protective shell and the outer cover; the protective shell and the outer coverare in a butt-joint way; the sight opening for overhauling is arranged on the outer cover; and the cover plate is arranged on the sight opening, thereby facilitating the mounting and the maintaining.

The invention discloses a threaded flange in the technical field of flanges. The threaded flange comprises a protective cover and a protective box, wherein one side of the protective cover and one side of the protective box are each provided with a through opening; the inner wall of each through opening is in threaded connection with a locking mechanism; the inner wall of each protective cover is fixedly connected with a clamping mechanism; the inner wall of the protective box is provided with a disc body; the inner wall of the disc body is fixedly connected with a guide pipe; a thread is arranged on the inner wall of the guide pipe; one end of the guide pipe penetrates through the left side of the protective cover; and the other end of the guide pipe penetrates through the right side of the disc body. According to the threaded flange provided by the invention, through arranging the protective cover and the protective box, the disc body and the guide pipe can be prevented from being damaged; through arranging the locking mechanism, the protective box and the protective cover can be conveniently disassembled; through arranging the clamping mechanism, the disc body can be prevented from moving in the protective box; and through arranging the guide pipe, a pipeline needing to be connected can be guided, so that the threaded flange has the functions of protecting the flange against being abraded and deformed and prolonging the service life.

The invention discloses a Tsallis entropy minimization-based inverse synthetic aperture radar (ISAR) global envelope alignment method. The method comprises the following implementation steps of: (1) performing range pulse compression on an echo signal subjected to line frequency demodulation; (2) estimating the envelope offset of each echo by using the minimum Tsallis entropy of the average range profile; (3) aligning each echo according to the calculated envelope offset; (4) calculating the Tsallis entropy of the average distance image after envelope alignment; and (5) repeatedly executing the step (2), the step (3) and the step (4) until the Tsallis entropy of the average range profile is no longer reduced, and completing ISAR global envelope alignment. The method can be used for efficiently and accurately aligning the echo envelope of the moving target, and improves the accuracy and efficiency of global envelope alignment of the inverse synthetic aperture radar (ISAR) while ensuring a better alignment effect.

The invention relates to the field of single-crystal high-temperature alloys, in particular to an assembly tool and method for accurately controlling the orientation consistency of seed crystals. According to the assembling tool, a fixed bracket and a movable bracket are oppositely arranged at the top of a slide rail base, and the movable bracket is pushed forwards to insert a heated seed crystal on a wax mold; a fixed end four-jaw chuck is installed on the fixed support, a rotatable four-jaw chuck is installed on the movable support, the rotatable four-jaw chuck is connected with the movable support through a bearing, and the fixed end four-jaw chuck and the rotatable four-jaw chuck correspond to each other and are coaxial. One end of a horizontal seed crystal is mounted on the rotatable four-jaw chuck, and a heating ring is mounted on the outer side of the other end of the seed crystal; one end of a horizontal wax mold is mounted on the fixed end four-jaw chuck, and the other end of the seed crystal corresponds to the other end of the wax mold. According to the method, orientation errors caused by manual assembly can be eliminated, seed crystal orientation is accurately controlled through a mechanical method, and the process of preparing the single crystal high-temperature alloy casting for controlling secondary orientation through a seed crystal method is optimized.