30results about How to "No additional process steps required" patented technology

The invention relates to an RDL (radiological defense laboratory) technology-compatible inductive component and a manufacture method. The method is characterized by comprising the following steps of: using a thin film metal deposition technology on a silicon substrate and simultaneously forming a first layer metal interconnection transmission line and a shielding layer; carrying out the spin coating of a photosensitive medium layer, and developing in an exposure way, forming into a metal interconnection through hole, annealing, performing dry etching on plasmas to remove the developing remaining part, and filling the metal interconnection through hole with plated metal; forming a second layer metal interconnection transmission line and an inductance coil; forming an outermost layer metal through hole; and manufacturing an electrical inductor with the metal shielding layer under the condition that the original technological steps are not increased. The invention is compatible with the main-stream re-wiring technology in wafer level encapsulation, under the condition that the technological steps are not increased, the electrical inductor with the shielding layer can be manufactured at low cost, the substrate eddy current of the silicon substrate can be effectively cut off, the quality factor of the electric inductor can be improved, the series resistance of the electric inductor can be reduced, and the electromagnetic interference of the vortex current to a chip can be reduced.

The invention discloses a trench-type super-junction device layout structure. A plurality of grooves for forming a column in each grain, the adjacent parallel grooves as a groove array, the array direction of the grooves adjacent to each other perpendicular to the array. The present application also discloses a method of manufacturing a trench-type super junction devices, it has formed a super junction structure having two or more of an array of channels in each grain, each groove by adjacent and parallel array composed of grooves, the grooves adjacent to the array direction of the array perpendicular to each other; said method comprising the ion implantation process is formed to cover all the grooves of the array ion-implanted region, ion-implanted region is formed at least one groove parallel to the array and at least another array of channels perpendicular to; final on all array of channels are formed super junction devices. This application is arranged perpendicular to each other by adjacent grains or cell array of channels, and to counteract the stress of deep trenches etched, and overcome the dislocations and other defects.

The invention provides a coating process of a crystalline silicon solar cell. The coating process comprises the following steps of: (1) entering a boat: putting a silicon wafer into a quartz boat; (2) heating after nitrogen is added; (3) precleaning: simultaneously adding nitrogen and ammonia, and turning on radio frequency to preclean; (4) plasma sputtering deposition: adding ammonia and silane, and turning on the radio frequency to perform plasma sputtering deposition; (5) going out of the boat; (6) cooling. The coating process has the beneficial effects that the production time is shortened, the production capacity is improved, and the process running time is shortened by six minutes; the ammonia consumption and the production cost are reduced; the uniformity of a silicon nitride film is improved; the conversion efficiency of the cell is improved; the method is simple and practicable, and additional processing procedures and materials do not need to be added.

The invention provides a preparation method of high-tap-density metal oxide. The preparation method comprises the following steps: S1, dissolving metal salt with a solvent; adding an organic additive and uniformly mixing to prepare a precursor solution, wherein the solvent is one or two of de-ionized water and distilled water, and the organic additive is one or more of N,N-dimethylformamide, tartaric acid, acetic acid and dimethyl sulfoxide; S2, atomizing the spraying precursor solution in step S1 by utilizing an atomizer; conveying the precursor solution into a spraying pyrolyzing furnace by utilizing carrying gas, and carrying out pyrolysis; collecting a pyrolysis product by utilizing a powder collector, so as to obtain the high-tap-density metal oxide. The invention further provides the high-tap-density metal oxide prepared by the method and a high-energy-density lithium-ion battery. According to the preparation method provided by the invention, any auxiliary facility does not need to be added, and technology steps do not need to be added; prepared powder grains have good sphericility degree, are dense and compact and have high tap density; the preparation method has the advantages of simple operation, high efficiency, short flow and high practicability.

The invention discloses a moisture-absorbing and environment-protection type fabric. The moisture-absorbing and environment-protection type fabric is characterized by comprising the following raw materials in percentage by mass: 12 to 20% of hemp fiber, 10 to 26% of chinlon, 2 to 5% of fluon, and 6 to 14% of copper ammonia fiber, wherein color cotton and the chinlon are blended to form an inner layer of the moisture-absorbing and environment-protection type fabric; the hemp fiber and wool fiber are blended to form an isolation layer of the moisture-absorbing and environment-protection type fabric; the copper ammonia fiber and the fluon are blended to form a surface layer of the moisture-absorbing and environment-protection type fabric. The moisture-absorbing and environment-protection type fabric has the advantages that the fabric is light, thin and comfortable, the moisture-absorbing effect is good, and the moisture-absorbing, drying and heat-insulation effects are realized by utilizing different raw materials in different positions; if the moisture-absorbing and environment-protection type fabric is not worn after use, the moisture-absorbing and environment-protection type fabric can be automatically degraded after a period of time, so that the time and labor are saved, and the environment-protection effect is realized; the production cost is lower, the production technology is simple, any additional technological step is not needed, and the production efficiency is improved.

The invention provides a semiconductor structure and a manufacturing method thereof, and the method comprises the steps: providing a semiconductor substrate which is provided with a trench; sequentially forming a first silicon oxide layer and a nitrogen-doped silicon oxide layer at the bottom and on the side wall of the trench; etching to remove part of the nitrogen-doped silicon oxide layer so asto expose the first silicon oxide layer at the bottom of the trench; and forming a second silicon dioxide layer which covers the surface of the nitrogen-doped silicon oxide layer on the side wall ofthe trench and the exposed surface of the first silicon oxide layer and fills the trench. Because the growth rate of the second silicon dioxide on the first silicon oxide layer is greater than the growth rate of the second silicon dioxide on the silicon oxynitride layer, the growth rate of the second silicon dioxide at the bottom of the trench is greater than the growth rate of the silicon oxynitride layer on the side wall of the trench, and the phenomenon that the second silicon dioxide layer on the side wall of the trench grows too fast to cause premature sealing to generate a cavity defectis avoided.

The invention discloses liquid wax for dice bonding in a GaAs MMIC thinning technology. The liquid wax is composed of a certain amount of a Crystal bond 509 energetic binder and acetone capable of dissolving the amount of the Crystal bond 509 energetic binder. The liquid wax obtained by dissolving the Crystal bond 509 energetic binder in acetone replaces high temperature wax used in a traditional dice bonding technology. Thus, mutual dissolution will not happen to a part where the liquid wax and a photoresist are contacted, and hardly-removed organic matters generated by mutual dissolution of a photoresist and high temperature wax are avoided. In addition, as the liquid wax and a photoresist are both easy to dissolve in acetone, the liquid wax and the photoresist are separated from each other only by being immersed in acetone. Therefore, the problem that removing of a photoresist is slow and hard during dice bonding by the use of high wax in a traditional technology is solved. Besides, the liquid wax provided by the invention has strong adhesiveness, and the problem of fragments during subsequent polishing and thinning processes is effectively solved.

The present invention relates to a high-bandwidth bending insensitive multimode optical fiber. The high-bandwidth bending insensitive multimode optical fiber comprises a core layer and claddings surrounding the core layer. The refractive index cross section of the core layer is in the shape of a parabola. The high-bandwidth bending insensitive multimode optical fiber is characterized in that the claddings include an inner cladding, a first recessed cladding, a second recessed cladding and an outer cladding which are distributed sequentially from inside to outside; the unilateral radial width (R2-R1) of the inner cladding ranges from 1 to 3 microns, and the relative refractive index difference delta 2 of the inner cladding ranges from -0.2% to 0.05%; the unilateral radial width (R3-R2) of the first recessed cladding ranges from 3 to 8 microns, and the relative refractive index difference delta 3 of the first recessed cladding ranges from -0.9% to 0.3%; the unilateral radial width (R4-R3) of the second recessed cladding ranges from 6 to 30 microns, and R4 is smaller than or equal to 58 microns, and the relative refractive index difference delta 4 of the second recessed cladding ranges from -0.15% to 0.01%; and the radius R5 of the outer cladding ranges from 60 to 65 microns, and the relative refractive index difference delta 5 of the outer cladding ranges from -0.15% to 0.15%. The optical fiber of the invention has the advantages of reasonable material composition and structural design, convenient process control, improved and reduced inner stress distribution, enhanced bending resistance and increased bandwidth.

The invention discloses a phase inverter for a tunneling transistor based on graphite, and a preparation method thereof. The graphene tunneling transistor comprises a source electrode, a grid electrode, a drain electrode, a graphene film, a semiconductor or metal substrate, a tunneling layer, a drain electrode insulating layer, a grid electrode insulating layer, a graphene passivation layer and adirect current bias voltage source, wherein the source electrode and a silicon substrate are connected, the drain electrode and the graphene film are connected, one tunneling layer is arranged betweenthe graphene and the substrate, and the grid electrode is arranged on the top of an electron tunneling part. If the work function of the semiconductor or metal substrate is small, the drain electrodeselects metal with a large work function, and the device is of an n type; and otherwise, the drain electrode adopts the metal with the large work function, and the device is of a p type. The p-type pipe drain electrode is connected with a high level, an n-type pipe source electrode is connected with a low level, the common grid electrode of two pipes serves as the input end of a circuit, and a p-type pipe source electrode and an n-type pipe drain electrode are connected to serve as the output end of the circuit. By use of the novel graphene tunneling transistor structure, a digital logic phase inverter with a high response rate and low static power consumption is realized.

The invention discloses a trench gate type silicon-on-insulator transverse insulated gate bipolar transistor device. According to the device of the invention, buried oxide is arranged on a P-type substrate; an N-type drift region is arranged on the buried oxide; a P-type body region and an N-type buffer region are arranged on the N-type drift region; a P-type collector region is arranged in the N-type buffer region; a square-wave-shaped heavily-doped N-type emitter region and a square-wave-shaped heavily-doped P-type emitter region are arranged in the P-type body region side by side; and a first square-wave-shaped longitudinal trench and a second square-wave-shaped longitudinal trench are formed on two sides of the square-wave-shaped heavily-doped N-type emitter region and the square-wave-shaped heavily-doped P-type emitter region; the first longitudinal trench is provided with a first polycrystalline silicon layer wrapped by a voltage-withstanding medium; a portion of the second longitudinal trench, which is parallel to the heavily doped P-type collector region, is filled with a second polycrystalline silicon layer wrapped by a voltage-withstanding medium; and a portion of the second longitudinal trench, which is located in a direction from the heavily-doped N-type emitter region to the heavily-doped P-type collector region, is filled with a third polycrystalline silicon layerand an oxide block body, wherein the third polycrystalline silicon layer is wrapped by a voltage-withstanding medium, and the oxide block body is positioned above the third polycrystalline silicon layer; and the second polycrystalline silicon layer is connected with the third polycrystalline silicon layer.

The invention discloses anti-sweat fabric. The anti-sweat fabric has the characteristics of comprising the following materials: in percent by mass, 15-27% of colored cotton, 33-45% of hemp fiber, 15-37% of nylon, 8-16% of wool fiber, 3-4% of fluon and 5-17% of copper ammonia fiber, wherein the colored cotton and nylon are blended so that the obtained substance is adopted as the inner layer of anti-sweat fabric, the hemp fiber and wool fiber are blended so that the obtained mixture is adopted as the interlayer of the anti-sweat fabric, and the copper ammonia fiber and fluon are blended so thatthe obtained matter is adopted as the surface layer of the anti-sweat fabric. The anti-sweat fabric has the advantages of light, thin and comfortable fabric and a good effect of moisture absorption, and by applying different raw materials to different positions, the functions of moisture absorption, drying and heat preservation are achieved; if the product is not worn no longer after use is conducted, self degradation can be achieved after a period of time, so that time-labor saving and environmental protection are achieved; the product has low production cost, the production process is simple, no addition of other process steps is needed, so that the production efficiency is improved.

The invention relates to an electrode binder, and particularly discloses a three-dimensional network type aqueous binder, a preparation method thereof and an electrode plate. The three-dimensional network type aqueous binder is of a three-dimensional network type molecular structure formed by a bonding reaction between a water-based binder and citric acid (CA), and the water-based binder is carboxymethyl cellulose (CMC) and/or sodium carboxymethyl cellulose (NaCMC). According to the invention, regulation and control of the network spacing of the binder are realized by utilizing the bilateral cooperation of small molecular citric acid, so that the ligand utilization efficiency is improved, and the fixing effect of the binding network is enhanced. By improving the production process, large-scale application can be realized without increasing process steps, and electrode pulverization and shedding of silicon-carbon negative electrodes and other negative electrode materials with large volume change in the cycle process can be effectively prevented, so that the cycle performance is improved, and the service life is prolonged.