338results about How to "Uniform density" patented technology

An apparatus for electroplating a layer of metal onto the surface of a wafer includes an ionically resistive ionically permeable element located in close proximity of the wafer and an auxiliary cathode located between the anode and the ionically resistive ionically permeable element. The ionically resistive ionically permeable element serves to modulate ionic current at the wafer surface. The auxiliary cathode is configured to shape the current distribution from the anode. The provided configuration effectively redistributes ionic current in the plating system allowing plating of uniform metal layers and mitigating the terminal effect.

A light-emitting diode device includes an epitaxial layer, a current blocking layer and a current spreading layer. The current blocking layer is disposed on one side of the epitaxial layer and contacts with a portion of the epitaxial layer. The current spreading layer is disposed on one side of the epitaxial layer and contacts with at least a portion of the current blocking layer.

An absorbent article includes a liquid pervious liner, a liquid impervious back sheet, and an absorbent composite located between the liner and the back sheet. The absorbent composite includes a first sheet, a second sheet, and a unitary absorbent core. The unitary absorbent core has a plurality of holes there through, wherein each hole has an area less than 200 mm². The unitary absorbent core has a uniform density and is positioned between the first sheet and the second sheet. The first sheet is directly joined with the second sheet at a plurality of bond points. The bond points are located within the holes and are substantially devoid of absorbent material.

Disclosed are a separator for lithium ion secondary batteries, having an inorganic layer formed from inorganic particles, characterized in that the inorganic particles have a particle diameter distribution in which the 50% cumulative particle diameter D₅₀ is in the range of 100 nm to 500 nm, the 10% cumulative particle diameter D₁₀ is 0.5D₅₀ or more, and the 90% cumulative particle diameter D₉₀ is 2D₅₀ or less; a method for manufacturing the separator; and a lithium ion secondary battery using the separator. When the separator is used, there can be produced a lithium ion secondary battery in which a short circuit caused by contraction or melting can be definitely prevented, as well as the current density applied to the electrodes during charging and discharging is uniform so that charging and discharging can be efficiently achieved.

In a circular needling machine for needling an annular preform and comprising both a vertically movable needling table serving as a horizontal support for said annular preform, and a needling head having a determined number of barbed needles disposed over the needling table in a needling zone and driven with vertical reciprocating motion, provision is made for the annular preform to be placed directly on the needling table and for it to be driven in rotation on the needling table by drive means while the needling table remains rotationally stationary during said rotation. The drive means comprise a set of conical friction rollers kept continuously in contact with the annular preform.

A diesel engine including a shallow-dish type combustion chamber on the top face of a piston. A fuel injection valve projects toward the combustion chamber, where a plurality of first nozzle holes are arranged in the same circumference of the fuel injection valve. A plurality of second nozzle holes having a diameter smaller than that of the first nozzle holes are provided in a circular side wall of the fuel injection valve, the circular side wall locating opposite to the tip part of the valve with respect to the first nozzle holes. The first nozzle holes and the second nozzle holes are staggered so that the sprays of the fuel ejected from the first nozzle holes and the second nozzle holes do no cross one another.

Methods of fabricating a semiconductor structure in which a body of monocrystalline silicon is formed on a sidewall of a sacrificial mandrel and semiconductor structures made by the methods. After the body of monocrystalline silicon is formed, the sacrificial material of the mandrel is removed selective to the monocrystalline silicon of the body. The mandrel may be composed of porous silicon and the body may be fabricated using either a semiconductor-on-insulator substrate or a bulk substrate. The body may be used to fabricate a fin body of a fin-type field effect transistor.

The invention provides automatic control multi-spray-head electrostatic spinning equipment, which comprises a high-voltage electrostatic generator, a receiving device and a lifting device and is characterized by also comprising an automatic control box, a dustproof transverse moving slide table, a multi-passage precise liquid supply pump and a self-cleaning type multi-spray-head device, wherein data interfaces of multi-passage precise liquid supply pump, the dustproof transverse moving slide table and the receiving device are respectively connected with the automatic control box, an injector is fixedly arranged at the multi-passage precise liquid supply pump, the self-cleaning type multi-spray-head device is connected with the front end of the injector, a bakelite plate covered with a conducting wire is fixedly arranged on a spinning head, a conducting clamp post is fixedly arranged on the bakelite plate covered with the conducting wire, and the high-voltage electrostatic generator is connected with the conducting clamp post. The automatic control multi-spray-head electrostatic spinning equipment has the advantages that the precision, integration and automation degree is high, the operation is simple, convenient, safe and fast, the production efficiency is high, and wide application prospects are realized in the industrial aspect of nanometer fibers.

A semiconductor light emitting device can include a casing having a concave-shaped cavity with an opening, a semiconductor light emitting element installed in a bottom portion of the cavity, and a resin layer for filling an interior of the cavity. The resin layer can include a wavelength conversion material, and can be formed in a convex shape in a light radiation direction of the light emitting element. In the resin layer a layer with a high density of the wavelength conversion material can be formed near a surface of the convex shape

The invention relates to a steel blank grinding abrasion wheel adopting microcrystal ceramic bonding agents, which is in a structure made of polycrystalline solid materials with the coexistence of glass and crystals and adopts the bonding agents of clay, feldspar, boron-containing microcrystal glass, pyrophyllite and soapstone to be made into high-intensity and low-shrinkage engineering ceramic bonding agents, good performance of the glass and the ceramics such as high mechnical intensity, wear resistance, corrosion resistance and the like are integrated, then, the glass and the ceramics are combined with mixed grinding materials, a molding pressing method is adopted for the high-pressure double-side pressing process forming, the low-temperature firing is adopted, the positive pressure reducing atmosphere heat simulation crystallization is adopted at the 800 DEG C heat insulation section, and the mixed grinding material and micro porous glass phase high-intensity microcrystal engineering ceramic composite structure is formed, so the intensity and the bonding degree of the steel blank grinding abrasion wheel are greatly improved, the use linear speed of the abrasion wheel is accelerated, and the safety factor is high. The steel blank grinding abrasion wheel belongs to the novel efficient special steel blank grinding abrasion wheel with the characteristics that the intensity andthe hardness are high, the tissue density is uniform, the grinding ratio is great under the condition of high-speed grinding, workpieces can not be damaged through firing, and the automation of iron and steel industries is easy to realize.

The invention relates to an injection-molded reactive sintered SiC ceramic material and a preparation method thereof. The ceramic material is prepared from the following raw materials in percentage by mass: 55-80% of silicon carbide, 3-10% of carbon powder, 1-3% of a surfactant, 6-20% of a lubricant and 6-20% of a binder through the steps of mixing, molding, degreasing and sintering, wherein the sum of the amount of components is 100%. The reactive sintered SiC ceramic molded by using the method provided by the invention has the advantages of uniform density of a billet and high dimensional precision, and can be used for manufacturing high-quality ceramic parts with complex structures and no defects. As for the prepared reactive sintered SiC ceramic material, the bulk density is more than 2.7g/cm<3>, and the three-point bending strength can be above 260MPa.

The invention discloses a microwave treatment reconstructed material and preparing methods thereof. A raw material of the microwave treatment reconstructed material comprises sawn timber. The microwave treatment reconstructed material is obtained through the sawn timber via the preparing method 1 or the preparing method 2. According to the preparing method 1, the sawn timber is subjected to high-strength microwave treatment firstly, and then direct hot press is conducted. According to the preparing method 2, the sawn timber is subjected to high-strength microwave treatment firstly, then the sawn timber is immersed in a resin-based bonding agent or a biology-based bonding agent, and then the microwave treatment reconstructed material is formed through hot press or cold press. According to the microwave treatment reconstructed material and the preparing methods thereof, the problems that the density of the timber is not even, the mechanical performance is not high, the size stability of the immersed reconstructed material is poor, the immersing depth is not enough, and uniformity is poor are solved. The microwave treatment reconstructed material prepared through the methods can be used in the furniture field, the indoor decoration field and the wood structure building field.

The invention relates to a packaging process of a white light LED (light emitting diode). The packaging process comprises a die bonding step, a wire bonding step, an adhesive preparing step, a dispensing step, a fluorescent powder precipitating step and an adhesive solidifying step, wherein in the fluorescent powder precipitating step, one of a centrifugal precipitation method, a baking precipitation method or a room temperature natural precipitation method is adopted or more of the centrifugal precipitation method, the baking precipitation method and the room temperature natural precipitation method are combined to ensure fluorescent adhesives to be divided into an upper packaging adhesive layer and a lower fluorescent powder layer covering an LED chip in a reflecting cup to ensure at least most fluorescent powder in the fluorescent adhesives to be precipitated on the fluorescent powder layer; and in the adhesive solidifying step, the reflecting cup after precipitation is continuously put in an oven to be baked to solidify the packaging adhesives in the reflecting cup and the packaging adhesives are taken out of the reflecting cup after being solidified. By adopting the packaging process, the problem that the light colors of the white light LEDs generated by the existing packaging processes of the white light LEDs have poorer consistency is mainly solved and the aim of ensuring the consistency of the light colors of the generated white light LEDs to be better is achieved.

A pillow has a plurality of grooves and ribs extending generally parallel to the longitudinal axis of the pillow such that in use, the ribs extend generally transverse to the spine of a user. The ribs are provided under the neck and head of a user and the pillow has an uncut core that is thinker under the neck.

The invention discloses a high-strength artificial quartz stone plate and a production process thereof. The high-strength artificial quartz stone plate is made from, by weight, 40-60 parts of 4- to 10-mesh quartz sand, 25-35 parts of 400- to 600-mesh quartz powder, 30-40 parts of binder, 10-20 parts of cullet, 5-10 parts of aluminum silicate fiber, 10-15 parts of organic bentonite, 20-25 parts of zirconia ceramic powder, 30-40 parts of sodium silicate, 15-20 parts of fly ash, 0.5-1 part of isopropyl tri(dioctylpyrophosphate) titanate, and 0.2-0.3 part of pigment. The artificial quartz stone plate produced by the production process has the advantages of light weight, uniform density, bright color, rich pattern, high impact resistance, high wear resistance, fine heat resistance, fine weatherability, deformation resistance, scratch resistance, aging resistance, coloring resistance, environment friendliness, no pollution and the like, has high performance indexes in terms of acid and alkali resistance, slat spray resistance, gasoline resistance and the like in organic solvents, and is durable and fully as effective as simulation natural stone.

The invention discloses a laminated board formed by the fine disintegration and rearrangement of whole raw bamboos and a production technical method thereof. Moso bamboos are used as raw materials. The method comprises the following steps that first, raw arc-shaped bamboo sheets are finely cut, disintegrated, rolled and unfolded by a machine to form longitudinal bamboo filaments, the bamboo filaments are laterally connected into planar trapezoid bamboo blocks of basically identical thickness, and the widths of the planar trapezoid bamboo blocks gradually change from one ends to the other ends; then, the wide ends and the narrow ends of two adjacent bamboo blocks are alternately put according to the width direction of the same end of one planar trapezoid bamboo block, the bamboo green sides or the bamboo yellow sides are arranged on the same upper side or the same lower side, and the bamboo blocks are glued to form a whole board, thereby forming a fine disintegrated bamboo filament block single-layer board; and at least two layers of fine disintegrated bamboo block single-layer boards are layered and laminated in a way that the bamboo green sides of two adjacent layers of single-layer boards are close or the bamboo yellow sides and the bamboo green sides in two adjacent layers are close, and the laminated board formed by the fine disintegration and rearrangement of the whole raw bamboos is obtained after different layers of single-layer boards are glued by an adhesive and hot-pressed into a whole. According to the invention, the bamboo bodies are stored to an utmost extent, a cut quantity is reduced, and the mechanical properties of the raw bamboo materials are exerted.

The invention discloses a geotechnical triaxial test specimen split mold and a specimen manufacturing method. The geotechnical triaxial test specimen split mold comprises a split cylinder, a cushion block, a sleeve ring and a compaction rod, wherein the split cylinder is axially divided into two equal parts which are combined tightly; the cushion block can move up and down in the split cylinder; the sleeve ring can sleeve the outer part of a split cylinder body; the compaction rod can move up and down in the split cylinder. The geotechnical triaxial test specimen split mold provided by the invention has the beneficial effects that the geotechnical triaxial test specimen is uniform in compaction, thereby obtaining reliable geotechnical triaxial test data.

This invention relates to an integral grad self-lubricating bearing and its manufacturing method, in which the bearing is composed of a bearing layer, a lubricating layer and a transition layer in the middle, and the bearing layer is made up of carbon steel, stainless steel or bearing steel, the lubricating layer is mixed by a solid lubricating matrix material and a solid lubricant, and the matrix is made of bronze or brass, the solid lubricant is made of MoS2, Sn or graphite, the matrix material is mixed with the solid lubricant to form a solid lubricating layer, the middle transition layer is formed by mixing the bearing material and the solid lubricating material in proportion, which has higher intensity, better rub-reduction and better integration.

An organic electroluminescent device is provided, including at least one light emitting layer 5 composed of an organic material between a transparent electrode and a counter electrode, wherein the organic electroluminescent device includes an electron injection layer 6 previously provided on the organic layer side of the counter electrode which is contact disposed in a solid plate form on the organic layer and heat and pressure formed, and the electron injection layer 6 is constituted of a metal oxide. According to this configuration, it is possible to heat soften the counter electrode in a fixed plate form and join it, and it is possible to inexpensively manufacture the organic electroluminescent device 1 with ease.

The invention discloses a super capacitor electrode material and a super capacitor electrode production method. The electrode material contains an active substance, a conductive agent, a binder and a cationic surfactant, wherein, the cationic surfactant is quaternary ammonium salt with a long chain structure, the binder contains fluororesin, polyolefin compound, styrene butadiene rubber or carboxymethyl cellulose, and the conductive agent is ketjen carbon black, acetylene black, furnace black, carbon fiber VGCF, nano-graphite, carbon nanotube, graphite or conductive graphite. The super capacitor electrode production method comprises the following steps: (1) adding the conductive agent and the cationic surfactant into the active substance to carry out grinding and mixing; (2) adding the binder and solution to carry out slurry mixing to obtain slurry; (3) pasting the slurry on a current collection body, and carrying out calendaring, drying and molding. The electrode material and the production method in the invention have the characteristics of a simple process, uniform density of the active substance, good flexibility and wetting quality of an electrode sheet, strong conductivity, low internal resistance and high production efficiency.

A heated aerosol-generating article comprises an aerosol-generating substrate, wherein the aerosol-generating substrate comprises a rod comprising a gathered sheet of homogenised tobacco material circumscribed by a wrapper. The sheet of homogenised tobacco material comprises one or more plasticisers and at least about 5 percent by weight triethyl citrate on a dry weight basis. The one or more plasticisers are preferably selected from the group consisting of propylene glycol, sugars and polyhydric alcohols. The sheet of homogenised tobacco material is preferably crimped or otherwise textured.

The invention discloses a high-density zinc oxide based target and a preparation method thereof. The method sequentially comprises the following steps: mixing materials: adding a binder and water into raw materials, mixing uniformly, so as to obtain uniform slurry, and carrying out drying and powdering on the slurry, so as to obtain dry powder particles with uniform particle size distribution; carrying out binder removal and degassing: loading the dry powder particles into a package of a corresponding size, and carrying out binder removal and degassing treatment; carrying out hot isostatic pressing: soldering and sealing the package which is subjected to binder removal and degassing, and then, carrying out hot isostatic pressing treatment; annealing: carrying out annealing treatment on package removed ingot blank. The zinc oxide based target obtained by adopting the method has the advantages that the relative density is not lower than 99% of theoretical density, the density is uniform, the average crystal grain size is not greater than 30 microns, and the zinc oxide based target is free from air pores and loosening.

There is provided a plasma processing system and method capable of decreasing the non-uniformity of a field distribution on the surface of an electrode and making the density of plasma uniform, in a plasma processing using a high density plasma which can cope with a further scale down. First and second electrodes 21 and 5 are provided in a chamber so as to face each other. A feeder plate 52 is arranged so as to be slightly spaced from the opposite surface of a surface serving as a feeding plane of the first electrode facing the second electrode 5. A feeder rod 51 is connected to the feeder plate 52 at a position which is radially shifted from a position corresponding to the center of the feeding plane of the first electrode 21. The feeder plate 52 is rotated to rotate the feeding position of the feeder rod 51 on the feeding plane of the first electrode. A high frequency electric power is thus fed to form a high frequency electric field between the first and second electrodes 21 and 5 to form plasma to plasma-process a substrate W.

The invention discloses a ceramic fiber filtering tube, a preparation method and a pressurization and suction forming device. The pressurization and suction forming device comprises a forming mold, apressurization pump, a dosage bunker, a vacuum pump and a vacuum filtrate tank, wherein the forming mold comprises an inner template, an upper template, a lower template, filter cloth and a blank tubecavity; the filter cloth and the blank tube cavity are arranged between the inner template and the upper template respectively; the filter cloth is arranged on the inner template; the lower templateis connected with the upper template; the upper and lower flange faces of the inner template are provided with sealing gaskets respectively; the top of the upper template is provided with a quick coupler for charging water or slurry; the quick coupler is connected with the pressurization pump; the pressurization pump is connected with the dosage bunker; the middle part of the lower template is provided with a water outlet for discharging water or slurry; the water outlet is connected with the vacuum filtrate tank; the vacuum filtrate tank is connected with the vacuum pump; a vacuum pressure gauge and a blow-off valve are arranged between the vacuum filtrate tank and the vacuum pump. The pressurization and suction forming device adopts a pressurization forming and suction sizing demolding form, is simple in structure, is convenient for forming, and is convenient to operate.

The invention discloses a method for manufacturing a microwave isolator/circulator cavity. The method comprises: a. a step of preparation of adhesive resin; b. a step of reparation of feed, in which alloy steel powder and adhesive resin are mixed and granulized to obtain feed grains; c. a step of injection forming, in which an injected embryo similar to the cavity is formed through injection forming; d. a step of degrease and dissolving the adhesive resin with a solvent; and e. a step of sintering, in which the injected embryo is subjected to heat treatment of sintering finally and the required cavity is obtained. The method has the advantages: 1. products have stable quality and good consistence as mold forming ensures the sizes of products produced in batch are consistent; 2. the production efficiency is high, the batch delivery cycle is short, and requirement of mobile communication market base station for rapid development is met, as 8,000 pieces of products can be produced through injection with four-cavity molds; 3. energy conservation and high efficiency are achieved due to an approximately 100 percent utilization rate of raw materials; and 4. the production cost and the processing procedures are reduced, and more than 30 percent of manufacturing cost are reduced in batch production compared with the prior processing method.

The invention provides an oscillating hot press sintering furnace and relates to the field of high-performance ceramic and powder metallurgy material preparation, in particular to equipment adopting the hot press sintering method. The oscillating hot press sintering furnace comprises a furnace body and a hydraulic mechanism. An upper water cooling pressure head, an upper graphite pressure head, a lower water cooling pressure head and a lower graphite pressure head are arranged inside the furnace body. The hydraulic mechanism comprises an upper oil press and a lower oil press. The upper oil press is connected with the upper water cooling pressure head. The lower oil press is connected with the lower water cooling pressure head. The top of the upper water cooling pressure head and the bottom of the lower water cooling pressure head are provided with electromagnetic resonance pressure applying devices correspondingly. The electromagnetic resonance pressure applying devices can adjust the vibration frequency, vibration amplitude and pressure while hot press sintering is conducted. According to the oscillating hot press sintering furnace provided by the invention, high-frequency vibration amplitude/pressure can be achieved through the bidirectional pressurizing mode, the sintering time is shortened, energy consumption is reduced, and the compactness of a product is more uniform; and in addition, system faults can be found in time, and safe production is guaranteed.

A producing method for enhanced silicon carbide compound material parts by the silicon carbide whisker belongs to the preparation techical field of ceramic substrate compound material and parts thereof. The SiCw/SiC compound material parts are produced by a combined art of powder injecting molding and precursor transformation. An even feed is obtained by mixing the SiC micro powder and SiC whisker and prepared binder in a certain proportion. The feed is injecting molding in the injecting molding machine by die after pelletization and obtaining a molding base of SiCw/SiC compound material part with needed shape. The molding base of SiCw/SiC compound material part is pre-sintered in 1300-1500 DEG C after thermally degreasing, finally sintered to densification in the sintering kiln. The advantages of the invention is: reducing the application amount of the powder injecting molding SiC ceramic binder, increasing the parts capacity and size accuracy and production efficiency, achieving the complicated SiCw/SiC compound material parts of near-final, low cost and mass production.

The invention discloses a method for preparing a nuclear fuel, which comprises the following steps: mixing acrylic amide, subunit bisacrylamide, ammonium polyacrylate and deionized water to form premix solution; adding U3O8 powder into a ball mill, then adding the premix solution into the ball mill, and preparing U3O8 slurry of which the solid-phase content is more than or equal to 60vol percent and the viscosity is less than or equal to 1Pa.s through ball-milling dispersion; adding ammonium sulfate and tetramethyl ethylene diamine into the slurry, evenly mixing the slurry and then injecting the slurry into a die, solidifying the slurry, and removing the die to obtain an annular U3O8 raw blank; drying the raw blank at the temperature of between 60 and 80 DEG C and the humidity of between 80 and 95 percent, and un-sticking the raw blank at the temperature of 600 +/- 20 DEG C; and sintering the un-stuck annular U3O8 raw blank in the hydrogen atmosphere at the temperature of 1,730 +/- 10 DEG C to obtain an annular UO2 fuel pellet. The method has the advantages that the relative density of the primary pellet blank reaches 60%-70%, the breaking strength is over 20MPa, and the size-grinding machining allowance of a sintered body is minimized through mechanical machining and precise size control.

Allografts for soft tissue repair, including breast reconstruction and other plastic surgery procedures, are disclosed. One allograft is made from decellularized dermal tissue and constitutes a collagen matrix having substantially uniform density and porosity. Another allograft is a hybrid bilayer tissue form that is made from decellularized dermal and adipose tissues. Methods for making both allografts are also disclosed.

A VCSEL which can be easily manufactured and can selectively suppress only high-order transverse mode oscillation is provided. The VCSEL includes a resonator, a first current confinement layer, and a second current confinement layer. The resonator includes an active layer having a light emitting region, and a pair of first multilayer reflector and a second multilayer reflector provided with the active layer in between, and resonate is generated in a given wavelength. The first current confinement layer has a current injection region is a region corresponding to the light emitting region, and is formed at a region including an antinode of a standing wave. The second current confinement layer has a current injection region with a diameter smaller than a diameter of the first current injection region and is formed at a region including a node standing wave.