701results about How to "Increase packing density" patented technology

The invention provides a microwave multi-chip packaging structure using a silicon through hole and a manufacture method thereof. The method uses a temperature safety valve (TSV) to achieve two-sided integrated system-stage packaging structure, when a monolithic microwave integrated circuit (MMIC) chip needs integrating, a user does not need embed a substrate before wiring, and performance, reliability and rate of finished products of the packaging structure are improved. Simultaneously, processes such as injection, corrosion, release and high temperature annealing in a manufacture process can be used before integration of the MMIC, and components needing special processes can be assembled and integrated in advance on the other side of the substrate. Therefore, the substrate comprising active and passive devices, micro-electromechanical systems (MEMS), photoelectric devices and the like can be conveniently manufactured in a large scale before integration of the MMIC, and the manufacture method is simple in process, reduces cost, and is advanced and reliable at present.

Disclosed is a method of producing a target material of a Mo alloy, which includes the steps of (a) preparing a green compact by compressing a raw material powder blend consisting of a Mo powder having an average particle size of not more than 20 mum and a transition metal powder having an average particle size of not more than 500 mum; (b) pulverizing the green compact to produce a secondary powder having an average particle size of from not less than an average particle size of the raw material powder blend to not more than 10 mm; (c) filling the secondary powder into a container for pressurizing; and (d) subjecting the secondary powder with the container for pressurizing to sintering under pressure thereby obtaining a sintered body of the target material.

A non-aqueous electrolyte secondary battery is composed of a positive electrode containing a positive electrode active material capable of storing and releasing lithium ion, a negative electrode containing a negative electrode active material capable of storing and releasing lithium ion, and a non-aqueous electrolyte. The negative electrode active material contains a first material of a graphite material and a second material of a complex in which graphite material and silicon or silicon composite are coated with amorphous carbon material, and a cyclic carbonic acid ester derivative having fluoride atom and a sulfur-containing composite having cyclic structure are added to the non-aqueous electrolyte.

The invention discloses a silica-based three-dimensional heterogeneously-integrated radio frequency microsystem and a manufacturing method thereof. The silica-based three-dimensional heterogeneously-integrated radio frequency microsystem comprises a first silica substrate layer, a second silica substrate layer, a third silica substrate layer, a fourth silica substrate layer, a radio frequency power amplification chip, a radio frequency low noise amplification chip, a radio frequency filter and a radio frequency switch, wherein the silica substrate layers are high-resistance silicon wafers; radio frequency chips and devices are made of different substrate materials through different processes; the radio frequency chips and devices are assembled inside cavities pre-etched in the first silicasubstrate layer and the third silica substrate layer; the first silica substrate layer, the second silica substrate layer, the third silica substrate layer and the fourth silica substrate layer are processed through low-temperature wafer-scale bonding into a whole and vertically connected through silicon through holes to form the silica-based three-dimensional heterogeneously-integrated radio frequency microsystem. The silica-based three-dimensional heterogeneously-integrated radio frequency microsystem achieves tree-dimensional integration of heterogeneous radio frequency chips and devices,thereby reducing the size, increasing the packaging density, reducing transmission loss of wire connection and enhancing the properties.

A soft magnetic compact which is produced by using soft magnetic composite powder in which the surface of magnetic powder is covered with an electrical insulating material containing at least an inorganic insulating material, and a resin material is fusion-bonded to the surface of the inorganic insulating material so as to partially cover the surface of the soft magnetic powder. Accordingly, it is possible to ensure an electrical insulating property between pieces of soft magnetic material powder to secure a good magnetic characteristics and to easily mold a compact.

The invention discloses a method for treating the waste emulsion with high concentration and a plurality of varieties by an ultrafiltration membrane method and a device thereof, which belongs to the technical field of waste water and waste liquid treatment. The main technique of the invention is 'dissolved air flotation-ultrafiltration membrane-electrolysis floatation', which can effectively reduce the dosage of medicament and improve emulsion breaking effect by adopting an efficient dissolved air flotation system, moreover, the water for dissolved air flotation, which is taken from a subsequent intermediate water tank, can flexibly adjust and dilute the concentration of the waste water, thus improving the running stability and the shock resistant loading capability of the system. An ultrafiltration membrane with large flux, high separative efficiency and long service life is adopted in an ultrafiltration system to realize oil-water separation and to concentrate the emulsion for a plurality of times and then floating oil is recovered, the waste water generated in ultrafiltration washing is treated again after reflow, thus reducing waste liquid discharging. Electrolysis floatation can remove residual emulsified oil and dissolved oil in the waste water, thus further lowering the COD value of yielding water. When the quality of raw water is changed, an activated carbon adsorption unit can guarantee the quality of the yielding water to be standard. The method and the device of the invention can process waste emulsion with high concentration and a plurality of varieties and have simple and reasonable technique, good quality of yielding water, compact layout of the device, thus facilitating automatic control and realizing recovery of emulsion and recycle economy as well as changing waste to be profitable simultaneously.

A unit-type external-pressure hollow fibre membrane module used for biological membrane reactor is composed of frame, tree-type membranes, filtered liquid outlet pipe, and air distributing pipe. A single tree-type membrane consists of top and bottom ends, and external-pressure hollow fibre membrane between both ends. Multiple membrane are parallelly connected via water collecting tube to form a tree-type membrane frame. Multiple air distributing pipes are parallelly connected to form an air distributing pipe frame. Both frames are alternatively arranged. Its advantages are high water output, high strength and high resistance to pollution.

The invention relates to a sheet molding compound with high flame resistance, low smoke and non-toxic and a preparation method thereof. The formula of the sheet molding compound comprises the following substance in mass portion: 50-80 portions of unsaturated polyester resin, 15-60 portions of low shrink additive, 1-3 portions of evocating agent, 0.01-0.05 portions of polymerization inhibitor, 0.7-7 portions of wetting and dispersing agent, 3-8 potions of inner mold release agent, 1-2 potions of thickening agent, 20-50 potions of viscosity reduction filler, 100-200 portions of flame retardant A, 50-100 portions of flame retardant B and 50-250 portions of reinforced material; the flame retardant A is micron aluminum hydroxide and the grain diameter is 0.4-3.5 microns; the flame retardant B is nanometer aluminum hydroxide and the grain diameter is 30-80 nanometers. The sheet molding compound of the invention has the advantages of high flame resistance, low smoke and non-toxic, well mechanical performance and surface decorative effect.

Magnetic powder contained in a resin composition for use in injection molding is coated with an insulating material, and a soft magnetic green compact or a hard magnetic green compact is insert molded into the resin composition.

The invention discloses a U-shaped seamless nickel-chromium iron alloy heat transfer tube for a nuclear steam generator. The U-shaped seamless nickel-chromium iron alloy heat transfer tube comprises the chemical ingredients of no less than 58% of Ni, 28-31% of Cr, 8-11% of Fe, 0.01-0.03% of C, no more than 0.5% of Si, no more than 0.5% of Mn, no more than 0.01% of S, no more than 0.015% of P, no more than 0.05% of Cu, no more than 0.016% of Co, no more than 0.5% of Ti, no more than 0.5% of Al, no more than 0.1% of Nb, no more than 0.003% of B, and no more than 0.005% of N. The surface quality and the dimensional accuracy of a straight pipe are ensured by hot-extruded nickel-chromium-iron alloy tube blank via a plurality of cold-rolling deformation, online degreasing, pure-hydrogen protecting continuous bright heat treatment and vacuum heat treatment; and meanwhile, the U-shaped seamless tube for a steam generator, which is overlong, thin in wall, and is in semicircle transition at the elbow part, is manufactured by bending and forming by the principle of forming a circle by three points.

The present invention provides an anhydrous stemming for blast furnace. Its composition includes (wt%) coarse brown corundun 1-4%, fine brown corundum 2-5%, coarse mullite 7-15%, fine mullite 9-20%, coke powder 15-20%, clay 10-19%, silicon carbide 7-11%, sericite 5-8%, bitumen 2-4% and anthracene oil 15-25%. It has good working property, stable high temperature resistance, excellent caking property, quick agglutinating property, low ton-iron stemming consumption, low contraction rate and high strength, it can raise tap up-to-standard rate to 100% from original 61.5%, can raise production safety of blast furnace, and can raise smelting strength.

The invention discloses a high-flux high-dirt-holding-capacity filtering element, which comprises a filtering medium layer (3), a central tube (2), a shell (1) and upper and lower end covers (10, 11), wherein the filtering medium layer (3) is folded into an arc-shaped fold and then encloses the central tube (2), and the whole is cylindrical; the shell (1) is sleeved outside a cylindrical filtering medium; the filtering medium layer comprises a filtering layer (3b) and plastic net layers (8) which are positioned on two sides of the filtering layer; the filtering layer consists of at least two layers of filtering materials (3d); and the upper and lower ends of the central tube (2) and the shell (1) are fixedly connected with the upper and lower end covers. A high-flux folding filtering element is wide in runner, relatively low in fluid resistance, and more uniform in flow distribution of water inlet and outlet ends of the filtering element. Compared with the conventional W-shaped linear fold designing filtration membrane, the high-flux folding filtering element is improved by over 30 percent in terms of filling density, large in filtering area, high in total dirt-holding capacity and long in service life of the filtering element.

The invention discloses a crystalline silicon solar cell front silver paste and a preparation method thereof. The front silver paste comprises the following components in percentage by weight: 85-90%of silver powder, 5-10% of an organic carrier, 5-10% of an organic carrier, 1.5-5% of composite glass powder, and 0.05-1% of a silver paste additive. The silver powder in different particle size distribution is cooperatively used, the slurry is good in ink permeability, and the silver powder particles in the grid line are more uniformly and tightly filled, so that the sintering density of the gridline is facilitated, the resistance of the grid lines is reduced, and the photoelectric conversion efficiency is improved. The preparation process of the glass powder is simple, the control is facilitated; the glass powder with different components is compounded and used, so that a series of particles are uniform, the softening temperature is low, and the composite glass powder has good wettability to the silver powder and the silicon substrate, a front silver paste prepared from the composite glass powder is sintered on the front surface of the cell, the silver electrode and the silicon havegood ohmic contact and welding performance, and the adhesion strength of the electrode is high.