331results about How to "Reduce contact area" patented technology

A wafer-supporting device for supporting a wafer thereon adapted to be installed in a semiconductor-processing apparatus includes: a base surface; and protrusions protruding from the base surface and having rounded tips for supporting a wafer thereon. The rounded tips are such that a reverse side of a wafer is supported entirely by the rounded tips by point contact. The protrusions are disposed substantially uniformly on an area of the base surface over which a wafer is placed, wherein the number (N) and the height (H [μm]) of the protrusions as determined in use satisfy the following inequities per area for a 300-mm wafer:

(−0.5N+40)≦H≦53; 5≦N<100.

A semiconductor device includes a fully silicided first gate interconnect formed on a semiconductor substrate, a first sidewall formed on a side of the first gate interconnect, and impurity diffusion layers formed in an active region of the semiconductor substrate. A shared contact plug is formed in an interlayer dielectric formed on the semiconductor substrate so as to be connected to the first gate interconnect and associated one of the impurity diffusion layers. The first gate interconnect is formed, at its part connected to the shared contact plug, with a projection part projecting beyond the first sidewall.

The invention relates to a method for improving the electroplating quality of a front electrode of a solar cell, comprising the following steps: pretreatment, sintering, laser scanning and slotting as well as electroplating, wherein a step of prefabricating a positive electrode of a main grid line by using a silk-screen printing mode exists between the pretreatment step and the sintering step; the step of the laser scanning of the slotting is to use lasers to scan a fine grid and slot; and the electroplating step comprises the following steps: electroplating a semi-finished cell on which fine grid scanning and slotting is finished by lasers; using an HF (hydrogen fluoride) acid solution with a low concentration or a mixed solution of HF and NH4F (ammonium fluoride) to activate a surface of the semi-finished cell; placing the semi-finished cell in a chemical nickel-plating bath; depositing nickel with the thickness of 0.1-1.0mu m on the front face of the fine grid; placing in an electrosilvering bath; depositing silver with the thickness of 2-20mu m; and annealing to form nickel-silicon alloys, thus finishing the fabrication of the front electrode of the cell. In the method, the silk-screen printing is utilized to prefabricate the positive electrode of the main grid line, thus optimizing the distribution of power lines on the cell surface, thereby improving a cell-scraping phenomenon caused by poor quality of dielectric films in the electroplating process and solving the problem that the adhesive force of a main grid line of the solar cell electrode fabricated by using a single electroplating method is poor.

The invention discloses a mechanical clamping device with magneto-rheological fluid shock absorption, which includes a base, the upper end of the base is fixedly connected with baffle plates symmetrically on both sides, and a circular card slot is provided on one side of the outer wall of the baffle plate , and a circular block is arranged in the circular card slot, a lead screw is connected between the two circular blocks, and the middle outer wall of the lead screw is sleeved with a rotating block, and the outer walls of both ends of the lead screw are A clamping plate is socketed, and the clamping plate is threadedly connected with the lead screw. The bottom of the clamping plate is provided with a slider, and the upper end of the base is provided with a chute corresponding to the slider. The inner wall of the baffle is a A sleeve is fixedly connected to the side, and the inner cavity of the sleeve is filled with magnetorheological fluid. The inner wall of the sleeve is provided with a piston block, and one end of the piston block is connected with a support rod. The invention is simple in structure, easy to operate, has better stability, and keeps the clamping force constant within a certain range at the same time, avoiding damage to the workpiece.

Disclosed is a tidal-flat ship. The tidal-flat ship comprises a ship body as well as a propelling unit and a steering unit which are arranged on the ship body. The steering unit is connected on the propelling unit. The ship body further comprises a floating unit, a sealed cavity is arranged in the bottom of the ship body, and the floating unit is connected between the propelling unit and the sealed cavity and ejects compression medium to the interior of the sealed cavity to have the ship body supported. Air pressure in the sealed cavity is utilized to have the ship body integrally uplifted, so that contact area of the ship body and tidal flats is reduced, force of friction of the ship body and the tidal flats is reduced, an impeller on the ship body directly drives the ship body to move forwards without involvement of manpower, and simpleness, convenience and rapidness in driving are achieved; the tidal-flat ship is also applied to water surface and can serve as a simple motorboat.

The invention belongs to the technical field of measurement, and particularly relates to a multi-substrate combining detection method based on laser measurement. A planeness combining detection method is improved into digital detection instructed by laser from traditional analog quantity detection; a laser tracker application processor visually displays adjustment amount; an adjustment amount displaying mode is direct, real-time and accurate; measuring points on substrates locate randomly; moving tracks of target ball measurement are random; contact area of a target ball and the planes of the substrates is small, number of collection points is large, and planeness of the combined substrates can be more comprehensively, vividly and accurately displayed as compared with that by traditional methods; translation and rotation of a coordinate system are facilitated, and origin of coordinates can be accurately defined to any position within the space of a measurement range; combining a coplane by multiple substrates, and in particular combining detection of any inclination angles and large planes are achieved fundamentally. With the multi-substrate combining detection method, operational procedures are simplified, measuring efficiency is improved by almost two times, and measuring accuracy is improved by more than three times.

The present invention addresses the problem of providing a head-up display device with which the display quality of a display object can be improved. A mirror holder 30 supporting a concave mirror is equipped with a protruding piece that protrudes from the approximate center of the holder width, which is defined along a rotational axis, and this protruding piece is moved by a position adjustment means. Stress acting on the mirror holder from the protruding piece is uniform in the left and right directions from the center of the mirror holder. Consequently, twisting at the location of the mirror holder is significantly reduced, so the driver is able to view a display object for which distortion has been suppressed, and the display quality of the display object is improved.

The invention relates to a juicer, in particular to a high-efficiency sugarcane juicer for sucrose production. The technical problem to be solved by the present invention is to provide a sugarcane high-efficiency juicer for making sucrose with high juice extraction efficiency. In order to solve the above technical problems, the present invention provides such a sugarcane high-efficiency juicer for sucrose production, which includes a bottom plate, a bracket, a collection tank, a filter screen, a crushing wheel, a crushing box, a first gear, a first rotating shaft, and a bearing seat , the second cylinder, the second iron baffle, etc.; the top bracket of the bottom plate is provided with a collection tank, and the left wall of the bracket is provided with a guide plate, a rolling box and a crushing box in sequence from top to bottom, and a guide hole is opened on the guide plate , the bottom of the left wall of the rolling box is hingedly connected with a first iron baffle. The invention achieves the effects of high sugarcane juice extraction efficiency, simple structure of the device, high utilization rate of sugarcane strips and simple operation of the device.

The invention relates to a device and method for sealing metal and glass. The device comprises a base (1), a working platform (2), an upright column (3), a screw rod (10), a synchronous rotating shaft (4), an upper clamp (7), a lower clamp (6), an upper coaxial positioning device (13), a lower coaxial positioning device (12), a movable positioning device (8), a heating fire head (11), an upper motor driving device (9) and a lower motor driving device (5), wherein the movable positioning device (8) moves up and down along the upright column (3) for positioning to control the upper clamp (7) which clamps a glass tube to move in a vertical direction and be positioned; the upper clamp (7) and the lower clamp (6) can synchronously and coaxially rotate; the upper coaxial positioning device (13) and the lower coaxial positioning device (12) are provided with a spring retractable device (17) and a rotating wheel (16); and the heating fire head (11) is provided with at least two spray nozzles which are annularly arranged. According to the method for sealing the metal and the glass, soften glass can be fast subjected to double-surface sealing on a metal wall surface by utilizing the gravity action of the soften glass.

The invention relates to a medical appliance, especially relating to an indolence injector. The invention is purposed to provide an indolence injector with simple structure and reasonable designed surface injection needle according to the bionic theory. The bionic non-smooth surface feature indolence injector technique adds non-smooth surface feature units with a certain shape and relative distribution theory on the surface of injection needle on the surface of injection needle, to transform the smooth feature of former needle to the non-smooth feature. The surface of needle of indolence injector has uniformly distributed non-smooth units while their shape can be ellipse concave, round concave, wave or saw-tooth; the distributed feature can be that covering the whole surface of element or covering one or several areas of element; the non-smooth units different diameters, pitches and processing depth while every two units have different center distance.

The invention relates to a metal material surface modification technology, in particular to a preparation method of a bionic hydrophobic coating on the surface of a magnesium alloy, which aims at improving the surface hydrophobicity of a coating and further improving the corrosion resistance. The method comprises the following steps: carrying out pretreatment by alkali wash and acid wash, and then immersing a sample in a chemical etching solution to change the appearance characteristics of the surface of the sample and enable the surface to contain chemical element substances different from the matrix; and after the reaction, placing the magnesium alloy sample subjected to chemical etching in a chemical plating solution with nickel sulfate as a main salt. Thus, because of the coupling effect of different structure and foreign substance, the adsorptive deposition position and distribution of metal cations in the chemical plating solution are changed, and a chemical coating having typical biologic hydrophobic surface characteristics can be gradually formed in the deposition process.

The inversion provides a stent delivering system and a back releasing assembly thereof. Constraint of a near end of a stent is achieved through a plurality of back releasing rods; during installation, the near end of the stent is hanged on all the back releasing rods, the back releasing rods are pushed into fixing holes of a conical head through a back releasing back end so as to constrain the near end of the stent; during releasing of the near end of the stent, a back releasing guide wire is pulled to drive the back releasing back end and the back releasing rods fixed on the back releasing back end to move axially, and then the back releasing rods depart from the fixing holes of the conical head, the near end of the stent is disengaged with the back releasing rods, and the near end of the stent is released. The back releasing assembly can effectively constrain the near end of the stent through a back releasing fixing member of the back releasing assembly; the reliability of axial movement of the back releasing rods can be improved; resistance is less during releasing due to small contact areas between the back releasing rods and the fixing holes; and the accuracy of the whole releasing process can be improved.

The invention relates to an in situ non-destructive soil sampler which includes a cylinder drill 1, a drill rod 2, a handle 3, an inner ring 4, an inner ring support 5 and an inner push rod 6, and is characterized in that the front end of the cylinder drill 1 is provided with an elastic cutting edge with bayonet; the cylinder drill 1 and the drill rod 2 are welded together; the drill rod has a hollow pipe-like structure; the inner push rod 6 and the inner ring support 5 are welded together; the inner push rod and the inner ring support are installed in the sleeves of the drill rod 2 and the cylinder drill 1; the inner ring 4 is installed in the sleeve of the cylinder drill 1; the inner push rod 6 pushes the inner ring support 5 to move axially, so as to push the inner ring 4 fully filled with original soil out of the cylinder drill. The sampler has the advantages of simple structure, convenience in operation, economy and practicality.

The invention discloses a sound emission detection sensor fixing device which comprises a main body, whose first surface is provided with a main body cavity and two accommodating cavities; a spring and a spring seat mounted in the main body cavity, with one end of the spring connected to the bottom of the main body cavity and the other end connected with the spring seat. Each accommodating cavity is fixed with a magnet and two metal pieces are respectively attached to the two faces of the magnet, wherein the distance between a first end face of each metal piece and the bottom of the accommodating cavity is longer than that between a second end face of the magnet and the bottom of the accommodating cavity, so that the main body is fixed on the surface of a tank wall via the first end faces of the four metal piece. As the spring seat transfers the pressure of the spring, a sensor is pressed against the surface of the tank wall by an even force. The fixing device of the invention solves the technical problem that the sensor is installed and fixed by using a magnetic holder in the prior art so that adaptability to the tank wall is poor, the magnetic force is either too large or too small, and the force applied to the sensor is uneven. The fixing device not only stabilizes the sensor, but facilitates the detachment of the fixing device.

A photodetector is provided. The photodetector includes first metal layers in which optical signals are converted into electric signals; first vias formed between the first metal layers and doped areas which include doped areas on both ends of an optical waveguide and a doped area on a growing portion, which absorbs a light signal transmitted through the optical waveguide; second metal layer in which optical signals are converted into electric signals; and second vias formed between the first metal layers and the second metal layers.

The invention provides a sitting type automatic lumbar fixed-point spinning reduction machine for treating soft tissue injuries and spinal diseases. The reduction machine comprises a chair, a crotch fixer, leg holddown units, a back fixer, a movable rod, a chest-rest board, a shifting mechanism, a forward bending mechanism, a sideward swaying mechanism, a spinning mechanism and a related electric control system. The shifting mechanism, the forward bending mechanism and the sideward swaying mechanism are driven by electrohydraulic rod type pushers, control is steady, the speed is moderate, the spinning mechanism is controlled by a servo system cooperating with a corresponding transmission mechanism, so that the needed speed and angle of spinning are accurate, and the back fixer is provided with artificial hand models, which are provided with buffer units and an automatic follow-up or withdrawal positioning function. The closed-loop control system comprising related sensors and a programmable controller is communicated with a computer via the RS232 serial communication technology, and cooperates with a computer user interface, and thereby the reduction machine has the advantages of simple operation, high automation degree, accurate control and remarkable efficacy.

The embodiment of the invention discloses an inhaul cable sleeve for an automobile. The inhaul cable sleeve comprises a corrugated lining tube, a flat steel belt, a steel wire layer and a plastic coating layer in turn from inside to outside, wherein the corrugated lining tube has a hollow tubular structure; the inner surface of the corrugated lining tube is the surface with continuous corrugated bulges; the flat steel belt has a flat banded structure; the flat steel belt is spirally wound on the outer surface of the corrugated lining tube; a bare tube of the inhaul cable sleeve for the automobile is formed by the flat steel belt and the corrugated lining tube; the steel wire layer is composed of a plurality of steel wires; the steel wires in the steel wire layer are uniformly distributed on the outer surface of the bare tube; and the plastic coating layer covers the outermost layer of the tubular structure formed by the corrugated lining tube, the flat steel belt and the steel wire layer. By adopting the inhaul cable sleeve for the automobile provided by the invention, a contact area of a lining tube and a steel wire rope is reduced, and a frictional force caused by the relative motion of the lining tube and the steel wire rope, namely, an operating force during the working process of an inhaul cable of the automobile, is reduced, so that the force-transferring efficiency of the inhaul cable of the automobile is increased and the noise caused by the vibration of the steel wire rope and the lining tube is reduced.

The invention provides a positive pole piece, a manufacturing method thereof and a secondary battery. The positive pole piece comprises a current collector, a first material layer coated on the current collector, and a second material layer coated on the first material layer; the first material layer comprises a lithium supplementing material, a first positive electrode active material, a first conductive agent and a first adhesive; the second material layer includes a second positive electrode active material, a second conductive agent, and a second binder. The invention has the beneficial effects that the first material layer and the second material layer are sequentially coated on the current collector, so the second material layer can coat the first material layer, air is isolated fromthe first positive electrode active material, and the contact area of the air and the lithium supplementing material in the first material layer in the processing and manufacturing process is reduced; the corrosion degree of the lithium supplementing material by air is reduced, and the first material layer can supplement metal elements for the second material layer, so the performance of the secondary battery prepared from the positive pole piece is improved.

A method for correcting the cross section of workpiece (metal pipe) bent by pipe bender features that 1-5 pairs of correcting dies or roller are arranged before and/or after bending pipe for reverse deformation, each pair of correcting dies or rollers are arranged at both sides of the longer axis of the deformed workpiece and moves in the direction of said longer axis.

The invention relates to automatic repair equipment for the pavement of a cement concrete road. The automatic repair equipment comprises a moving device. A cleaning device is installed at the front end of the moving device. A repair device is installed at the rear end of the moving device. A rolling and spreading device is installed at the right end of the moving device. The moving device comprises a moving bottom plate. Two moving assisting mechanisms are installed at the lower end of the moving bottom plate. The two moving assisting mechanisms are symmetrically located on the front and rearsides of the moving bottom plate. A marking mechanism is installed at the lower end of the moving bottom plate. The automatic repair equipment can solve the problems that moving on the pavement is conducted by means of the existing mobile equipment manually during the restoration construction process of the existing concrete road, the concrete pavement with sand accumulation needs to be manually cleaned and wetted, concrete slurry is coated manually for multiple times with tools, scratching and troweling treatment is performed reciprocally, and the repaired concrete pavement needs to be covered with a protective cloth manually, and the function of automatic restoration construction of the concrete road with sand accumulation can be fulfilled.

The invention provides a tire containing a non-Newtonian fluid, which comprises a non-Newtonian fluid tube, a support tube body and a tire tread layer, wherein the middle of the tire tread layer bulges; the non-Newtonian fluid tube is embedded into the tire tread layer; the non-Newtonian fluid tube is positioned in the middle bulge of the tire tread layer; and the support tube body is embedded into the non-Newtonian fluid tube. When the vehicle using the tire containing a non-Newtonian fluid runs at low speed or is static, the contact area between the tire tread and the ground is increased, thereby being beneficial to obtaining the road holding capacity; and when the vehicle runs at high speed, the contact area between the tire and the surface is reduced, thereby lowering the resistance of the vehicle running tire.

The invention discloses a rotary motion oil seal. The rotary motion oil seal consists of an elastic sealing body, a supporting framework, a sealing main lip, a dust-proof lip and a spring, wherein the dust-proof lip forms an annular sealing surface; the annular sealing surface is provided with convex or concave stripes or the annular sealing surface is provided with a plurality of bumps or pits; the bumps or pits form longitudinal and transverse trenches in the annular sealing surface of the dust-proof lip; meanwhile, a PTFE (Polytetrafluoroethylene) lip can be adhered to the dust-proof lip to reduce the friction coefficient. The rotary motion oil seal has the characteristics that the dust-proof performance is good, a dry friction state between the dust-proof lip and a sealing shaft is reduced, the dry grinding resistance and the wear resistance performance of the dust-proof lip are improved, and the service life is long.

The invention discloses an ablation catheter with grooves in the surface. The ablation catheter comprises a supporting catheter and a plurality of wires, wherein the supporting catheter is configured in the central portion, and the wires are configured on the outer surface of the supporting catheter. The wires are configured by surrounding the circumferential direction of the supporting catheter, and each wire extends in the length direction of the supporting catheter. A sealing layer used for wrapping each wire is arranged outside each wire. The grooves are formed in the outer surface of the supporting catheter by the adjacent sealing layers. Compared with the design that in the prior art, internal structures like the wires are covered by circular tubes, the ablation catheter with the grooves in the surface has the advantages that the contact area between the outer surface of the ablation catheter with the grooves in the surface and the inner wall of a guiding catheter is smaller, the friction resistance is greatly reduced, the ablation catheter is convenient to operate during an operation, meanwhile, a gap between the ablation catheter with the grooves in the surface and the guiding catheter is larger, and the requirements for radiography, lavaging, coagulation resistance and the like during the ablation operation can be fully met.

The invention relates to a fabricated building beam column steel structure connecting component. The component comprises a supporting bottom plate, square columns, installation adjusting mechanisms and a connecting mechanism, wherein sliding chutes are formed in the supporting bottom plate, the square columns are symmetrically installed on the supporting bottom plate in a sliding fit mode, and theinstallation adjusting mechanisms are installed on the square columns in a bilateral symmetry mode; the installation adjusting mechanisms are connected through the connecting mechanism, and the connecting mechanism is located above the middle part of the support bottom plate. The steel structure connecting component can solve the problems that an existing steel structure connecting component is small in contact area and low in connecting stability at the beam-column connecting position, the distance of a steel beam cannot be adjusted, threaded holes in the beam columns are difficult to alignaccurately, deviation occurs in the mounting process, and then the mounting precision is affected; and the problems that during installation, stable connection cannot be conducted on the steel beams with the particularly long length, self-locking cannot be achieved at the joint of the two steel beams, steel structure connection is unstable, and potential safety hazards exist can be solved.

An apparatus for wire rope inspection is provided with a rope detector (20) along a channel. Multiple parallel wire ropes (5) pass through the channel. The rope detector (20) is suitable for sensing leakage magnetic flux leaked from the magnified wire ropes (5). The rope detector (20) includes a sensor surface formed in a plane, and the length of the sensor surface is greater than the whole width of the multiple parallel wire ropes (5). If the leakage magnetic flux is sensed, the sensor surface of the rope detector (20) is configured to be parallel to a plane defined by the multiple parallel wire ropes (5) so as to in wire contact with the multiple wire ropes (5) and is configured to span the whole multiple parallel wire ropes (5).

The invention discloses a surface cleaning device for solar cell panel production. The surface cleaning device comprises a fixed base, wherein an electric rotary table is arranged on the top of the fixed base; a four-leaf petal shaped station base is fixedly arranged on the top of the electric rotary table; a loading station, a primary sweeping station, a sweeping station and a secondary sweepingstation are arranged on the station base; the position, at the outer side of the electric rotary table, of the top of the fixed base is equipped with three L-shaped brackets which are sequentially equipped with a primary sweeping device, a cleaning device and a secondary sweeping device. The surface cleaning device adopts four stations to sequentially perform charging and discharging, primary sweeping, cleaning and secondary sweeping on the surface of the solar cell panel, so that dust on the surface of the solar cell panel is cleared more completely.

The invention discloses a phase change memory element and a manufacturing method thereof. The phase change memory element comprises a bottom electrode, nano particles, an insulating layer, a phase change layer and a top electrode, wherein the nano particles are positioned on the upper surface of the bottom electrode; the insulating layer is formed in a region which is not covered by the nano particles on the upper surface of the bottom electrode; the phase change layer is formed on the nano particles and the insulating layer and positioned right above the bottom electrode; the top electrode is formed on the phase change layer and aligned to the bottom electrode; and the nano particles are used for electrically connecting the bottom electrode with the phase change layer. According to the phase change memory element and the manufacturing method thereof, the contact area between the bottom electrode and the phase change layer can be effectively reduced, and the heating efficiency of the bottom electrode on the phase change layer is improved, so that the read-write rate of the phase change memory element is improved.

The present invention provides an anti-adhesion mechanism and a method of producing it and more particularly, it provides an anti-adhesion mechanism comprising a structure body, a resin binder layer comprising a resin binder coated on all or part of the surface of the structure body and a bead layer comprising a plurality of beads bond to the upper side of the coated resin binder layer and being salient outside, and a method of producing an anti-adhesion mechanism comprising coating a resin binder on the surface to be coated, spraying beads on the upper portion of the resin binder before the coated resin binder is hardened and hardening them to form bead protrusions. The anti-adhesion mechanism prepared in accordance with the invention can prevent the adhesion of attachments such as stickers, posters and dusts to the coated surface and easily remove the attachments even though they are adhered, can be readily formed and can improve such properties as weather resistance, contamination resistance, scratch resistance, chemical resistance and impact resistance of the surfaces coated therewith.

A circuit board clamp capable of achieving rapid clamping comprises a base. The base is provided with a plurality of positioning blocks, an eccentric wheel, an eccentric rotating shaft, a movable guiding block, a positioning rod, a sliding block and a linear rail. The positioning rod is perpendicularly fixed to the movable guiding block. The plane formed by the center lines of the positioning rod and the movable guiding block is parallel to the upper end face of the base. The linear rail is fixed to the base. The positioning blocks are provided with workpiece limiting portions. The positioning blocks are fixed to the base in the mode of adapting to the workpiece shape arrangement mode. During clamping, the workpiece limiting portions make contact with the side walls of edges of workpieces, and the workpieces are arranged between the positioning blocks. Clamping force is mastered better, and the phenomenon that a brittle circuit board is damaged due to the fact that the clamping force is excessively large is avoided; the side walls of the workpieces are limited through the workpiece limiting portions of the positioning blocks, even stress on a circuit board during clamping is ensured, and the phenomenon that the circuit board is damaged due to local uneven stress is avoided.

An apparatus and method is presented for the management of fluid flow utilizing different adjacent wettability regions to form a fluidic network structure on a substrate. The fluidic network structure may include liquid-absorptive fluidic channels, where the fluid can flow within these channels and be removed from the substrate. Fluid can be moved by gravitational force, compression force, capillary force and surface tension force.