79results about How to "Improve stripping rate" patented technology

The present invention pertains to methods for removing unwanted material from a work piece. More specifically, the invention pertains to stripping photo-resist material and removing etch-related residues from a semiconductor wafer during semiconductor manufacturing. Methods involve implementing a hydrogen plasma operation with downstream mixing with an inert gas. The invention is effective at stripping photo-resist and removing residues from low-k dielectric material used in Damascene devices.

Provided is a preparation method for high-quality recycled concrete aggregates. The preparation method comprises steps of sorting of waste concrete, primary crushing, primary screening, rod milling, secondary screening and cleaning, and then the graded aggregates are mixed according to required gradations to obtain recycled coarse aggregates with different particle sizes. According to the preparation method, the cyclic utilization rate of waste concrete can be close to 80%, the resource utilization of construction waste in cities can be realized, the secondary pollution of construction waste to the environment can be reduced, the land occupation account for landfilling of construction waste can be saved, and the industrialization development of comprehensive utilization of construction waste can be promoted to some extent.

The present invention provides a martensitic stainless steel strip for razor blades in annealed state comprising a continuous processed groove being formed with thermal energy in a longitudinal direction on one side of the strip at a position with a predetermined distance from one edge; and a continuous changed structure area being formed with thermal energy in a longitudinal direction on opposite side of the strip at a position having a predetermined distance from the edge, wherein the processed groove functions as a splitting portion of the strip. In addition, the present invention provides a method for manufacturing the steel strip for razor blades.

The invention relates to a sugarcane whole stem leaf-peeling device, a harvester with the same, and a leaf-peeling method thereof. The harvester comprises a harvesting device, a power device, a chassis, a side conveying device, a leaf-peeling device and a sugarcane collecting device, wherein the leaf-peeling device comprises a guide cover plate, a pair of tip-cutting rolls, a traverse leaf-peeling roll, a vertical leaf-peeling roll, a speed-limit roll and a power transmission system. A sugarcane is firstly fed into the guide cover plate in a tip-first way, the tip-cutting rolls are oppositely arranged for crushing a growing point of the sugarcane to remove the tip and then fed into the traverse leaf-peeling roll, the transverse leaf-peeling roll and the vertical leaf-peeling roll are fixed with a plurality of rows of lead-peeling brushes, when the sugarcane passes through, leaf-peeling in an upper direction, a lower direction, a left direction and a right direction is completed, and the sugarcane does a certain axial rotation under the drive of the tip-cutting rolls and the speed-limit roll so as to achieve full-direction leaf-peeling. The invention reduces the power consumption, improves the sugarcane whole stem leaf-peeling rate, and can complete integration operations of whole stem buried cutting, transverse and vertical conveying, longitudinal conveying, tip crushing, leaf peeling and pilling placement by one-stop operation.

The invention provides a preparation method of a stratified molybdenum disulfide nano material. The preparation method comprises the following steps: adding molybdenum disulfide blocks to a container and adding a stripping solvent to prepare a molybdenum disulfide dispersion; performing hydraulic shearing treatment on molybdenum disulfide dispersion by use of a high-shear emulsifying machine; and centrifuging the hydraulically sheared molybdenum disulfide dispersion, filtering the centrifuged top suspension and drying in vacuum to obtain stratified molybdenum disulfide nanosheets. According to the preparation method of the stratified molybdenum disulfide nano material, the molybdenum disulfide blocks are under a strong combined action in a narrow gap between a stator and a rotor to arouse horizontal dislocation and slippage motion of crystal faces between the molybdenum disulfide layers, and therefore, the molybdenum disulfide is stripped, and finally, stable single-layer or few-layer molybdenum disulfide sheets are obtained; the preparation method is a pure physical method, and is simple in process, low in cost, small in danger, high in stripping ratio, green and environment-friendly; the prepared stratified molybdenum disulfide nanosheets are kept excellent in physical properties and suitable for large-scale industrial production after a pilot plant test.

A method and device for detaching a first substrate, which is connected to a second substrate by an interconnect layer, from the second substrate by embrittlement of the interconnect layer. A method for bonding of a first substrate to a second substrate with an interconnect layer which can be embrittled by cooling. A use of a material which can be embrittled for producing an interconnect layer between first and second substrate for forming a substrate stack. A substrate stack, formed from a first substrate, a second substrate and an interconnect layer located therebetween, the interconnect layer formed from a material which can be embrittled. A wafer chuck for holding a first substrate when the first substrate is being detached from a second substrate with fixing means which can be activated by lowering the temperature.

The invention discloses an environment-friendly stainless steel substrate plating stripping agent. Nitrate is optimally selected as an oxidizing agent for stripping nickel, chromium, copper, tin, and other plating on a stainless steel substrate, and as generally, nitrate is relatively stable in property and relatively low in toxicity, so that when the stripping agent provided by the invention is used, exhaust gases and waste water are not generated, and the stripping agent is non-corrosive to a device and highly friendly to the environment; at the same time nitrate is matched with citrate, potassium sodium tartrate and a proper amount of polyhydroxyl aldehyde, so that the speed for stripping the nickel plating on the stainless steel substrate is effectively increased, the plating stripping is achieved in a short time, and the production cycle is shortened while the substrate is not damaged; and the stripping rate of the nickel plating on the stainless steel substrate can be effectively increased through the combination of mannitol and sodium diacetate. Relative to the prior art, the stripping agent has the advantages of being free of corrosion, poisonous gases and pollution, high in efficiency, environment-friendly in use, easy and convenient to maintain, and the like.

The invention relates to a method for stripping layered nanoparticles. The method comprises the following steps of: (1) performing intercalation treatment on the layered nanoparticles by adopting an intercalation agent, thereby obtaining intercalated nanoparticles; and (2) performing stripping treatment on the intercalated nanoparticles prepared in the step (1) by adopting a maleic anhydride graft, thereby obtaining the stripped layered nanoparticles. The stripping method comprises the following steps of: performing intercalation treatment on the layered nanoparticles by adopting the intercalation agent, and preparing the intercalated nanoparticles; and stripping the intercalated nanoparticles by adopting the maleic anhydride graft. Because the maleic anhydride graft has a polar group aldehyde group and olefin hydrophobic segments provided by maleic anhydride, and the anhydride group and the polar group (such as amido) are subjected to a generalized dehydration reaction so as to form chemical bonds under the high temperature and screw shear actions, so that incompatible polar and non-polar substances are subjected to chemical coupling. Therefore, the layered nanoparticles are stripped and dispersed, and a coupling compatibility effect is achieved.

The invention discloses a source-drain electrode of a thin film transistor. The source-drain electrode is composed of a molybdenum layer and a copper layer in a sequential overlaying mode, and the copper layer is arranged on the molybdenum layer. The molybdenum layer is arranged on an active layer of the thin film transistor; the growth direction of crystal lattices of the molybdenum layer and the growth direction of crystal lattices of the copper layer are perpendicular to each other; the thickness of the molybdenum layer is 20 nm-40 nm; the thickness of the copper layer is 150 nm-250 nm. The invention further discloses a manufacturing method of the source-drain electrode, the thin film transistor comprising the source-drain electrode and a manufacturing method of the thin film transistor. The defects that in the prior art, copper electrodes are prone to being oxidized, and copper atoms diffuse toward oxide after the copper electrodes deposit on the active layer of the metal oxide are overcome, the source-drain electrode has the advantage of high conductivity, stress balance between two layers of electrodes can be achieved, the disbanding ratio of the electrodes is lowered, and the bonding strength is improved.

The present invention is one metal ion implanter with strong ion beam flow, low ion beam leading out voltage, great ion beam implanting area, short ion implanting period and low workpiece treating cost. The metal ion implanter has metal ion comprising cathode, cathode rack, triggering electrode, insulating cathode sleeve, anode, anode rack, charge chamber, plasma chamber, the first grid, the second grid and the third grid. The interval between the first grid and the second grid is 5-10 mm, and these three grids are 2-5 mm thick plates with 1300-1800 small holes each of 3-5 mm diameter. The arc voltage power source has characteristic impedance of 1 ohm, pulse width of 0.44-0.65 ms and frequency of 5-25 Hz. The present invention is used in the production of metal parts.

A substrate processing method for removing a resist film from a substrate having the resist film formed thereon comprises maintaining the inner region of the chamber at a prescribed temperature by putting a substrate in a chamber, denaturing the resist film by supplying ozone and a water vapor in such a manner that ozone is supplied into the chamber while a water vapor is supplied into the chamber at a prescribed flow rate, the amount of ozone relative to the amount of the water vapor being adjusted such that the dew formation within the chamber is prevented, and processing the substrate with a prescribed liquid material so as to remove the denatured resist film from the substrate.

A method of producing graphene sheets comprising the steps of, forming a carbonaceous powder by electrochemical erosion of a graphite electrode in a molten salt comprising hydrogen ions, recovering the resulting carbonaceous powder from the molten salt liquid, and thermally treating the carbonaceous powder by heating the carbonaceous powder in a non-oxidising atmosphere to produce a thermally treated powder comprising graphene sheets. The method allows high production rates of high purity graphene sheets.

The invention belongs to the technical field of preparation of materials and particularly relates to a method for preparing graphene from expanded graphite. Microcrystalline graphite serving as a raw material is subjected to first chemical intercalation treatment, first high-temperature expansion treatment, second intercalation treatment and second high-temperature expansion treatment sequentially, second expanded microcrystalline graphite is obtained and subjected to ultrasonic treatment twice, and a peeling material is obtained and subjected to press filtering, separation and washing, and graphene is obtained. According to the method, the microcrystalline graphite is taken as the raw material, the production technology process is short, and the method is low in cost, produces no sulfur and can be used for mass production of graphene materials.

The invention provides an automatic fail preventing device for a ceramic filter. The automatic fail preventing device for the ceramic filter comprises a porous metal protection pipe and a fixing seat, wherein the porous metal protection pipe is fixed at the upper part of a main pipe plate of the filter through the fixing seat, and the position of the porous metal protection pipe corresponds to that of a ceramic filtering pipe up and down; an injecting and blowing pipe is arranged in the porous metal protection pipe, the upper end of the injecting and blowing pipe extends out of the top of the porous metal protection pipe and is communicated with a back flushing distribution pipe, and a spiral drain pump is arranged at the lower end of the injecting and blowing pipe. According to the automatic fail preventing device for the ceramic filter, the pressure drop is relatively low when the ceramic filter safely runs, cleaning gas can smoothly enter an air purification room through the wall of the protection pipe; when a filtering element has failure, large-particle dust can be quickly sealed so as to prevent an integral system from stopping caused by the damage of few of filtering elements. The automatic fail preventing device for the ceramic filter automatically seal damaged filtering elements, and a precise online monitoring device and a corresponding probe for locating the damaged filtering elements do not need to be installed, so that the operation and the installation are convenient, and the error stopping caused by error judgment is also avoided.

The invention relates to the field of preparation of graphene composites and discloses a PET/microcrystalline graphene composite heat-conducting film and a preparation method thereof. Expanded graphite is creatively prepared from microcrystalline graphite used as a raw material through secondary intercalation, a high-quality graphene product is obtained through ultrasonic treatment with a mechanical exfoliation method, and the PET/microcrystalline graphene composite heat-conducting film with high heat conductivity can be prepared in batches through process optimization of the graphene product. The prepared PET/microcrystalline graphene composite heat-conducting film has the graphene coating thickness of 3-9 mu m, the thermal diffusion coefficient of 8-12 cm<2>/S and the heat conductivity coefficient of 1,400-1,700 W/(m*k).

The invention relates to a method for quickly extracting and separating polyphenol oxidase from plant leaves, and belongs to the field of bioseparation. The method for quickly extracting and separating the polyphenol oxidase from the plant leaves comprises the following steps: cleaning plant leaves; adding a buffer solution, mashing, leaching and carrying out suction filtering; collecting a filtrate, centrifugally collecting crude enzyme; extracting by using reverse micelles after ultra-filtration of the crude enzyme; and concentrating, freezing and drying after extraction is ended, so as to obtain polyphenol oxidase powder. The polyphenol oxidase crude enzyme is extracted by using the reverse micelles, and the obtained polyphenol oxidase is high in purity, fewer in impurities, and high in enzyme activity, and the processing method is simple in technology, large in handling capacity and applicable to industrial production.

The present invention relates to the technical field of chemical material recovery and utilization, in particular to a separation device, a stripping device and a recovery method of a battery positiveelectrode. The separation device structure comprises a screening device and a material receiving device. The screening device is detachably connected with the material receiving device, and the screening device is located above the material receiving device. The stripping device structure comprises a reaction tank and at least one ejection device. The ejection device is arranged on side wall of the reaction tank and/or the inner wall of one end of the reaction tank. The recovery method of the lithium ion battery positive electrode comprises the steps of separation and stripping. The separation device and the stripping device are simple in structure and easy and convenient to operate. The recovery method is short in process flow, simple in equipment and high in stripping rate without by-products added in the production process, and the stripped current collector is pure without inclusion of current collector, electrolyte and the like so as to facilitate subsequent recovery treatment.

The disclosed metal gas mixed ion implantor comprises a metal ion source (1), an ion source power, a gas ion source (31), a gas supplying system, a gas ion source power, a vacuum chamber (2), a workpiece target platform (3), a vacuumizing system (4), a cooling system, and a control screen. This invention spreads application range of ion implantation technology greatly.

The invention discloses a multi-source metallic ion injector, which comprises the following parts: two or more angularly metal ion source (1), ion source electric power system, vacuum chamber (2), work-piece target bench (3), pumped vacuum system (4), cooling system and control panel, wherein the metal ion source (1) includes negative pole (5), negative pole support (6), trigger electrode (7), insulating negative pole sleeve (8), anode (9), anode support (10), arc chamber (11), plasma body chamber (12), first grid (13), second grid (14) and third grid (15).

The invention discloses a preparation method of a high-temperature-resistant filtering material and belongs to the technical field of filtering and dedusting materials. The method comprises the stepsof 1) mixing, 2) opening, 3) lapping, 4) needling, 5) dipping and 6) film covering. The mixing process comprises: uniformly mixing basalt fibers and polybenzimidazole fibers according to a weight ratio of (3-4): (1-2), and the dipping process comprises: padding the needled felt in the treatment liquid, wherein the pick-up rate is 29-33%, drying at the temperature of 190-220 DEG C, baking at the temperature of 250-320 DEG C, controlling the drying and baking speed to be 4-5m/min, and rolling, wherein the treatment liquid is prepared from the following components in percentage by mass: 15 to 26percent of polytetrafluoroethylene dispersion liquid, 2 to 6 percent of dimethyl diphenyl polysiloxane, 0.7 to 3 percent of 3-aminopropyltriethoxysilane, 0.5 to 1 percent of Tween and the balance of water. The filtering material has good high temperature resistance, can resist the temperature of 280-295 DEG C for a long time, can resist the temperature of 320 DEG C instantaneously, and has the service life of 2 years or longer.

The invention discloses nano-tourmaline hybrid emulsion and a preparation method thereof, belonging to the technical field of hybrid emulsion preparation. The nano-tourmaline hybrid emulsion is prepared from sodium hexametaphosphate, sodium polyacrylate, nano-tourmaline powder, polytetrafluoroethylene (PTFE) emulsion and water. The preparation method of the nano-tourmaline hybrid emulsion comprises the following steps: weighing the sodium hexametaphosphate and the sodium polyacrylate, adding water into the weighed materials, putting into a stirrer, and stirring under the condition of heating; weighing the nano-tourmaline powder, adding water into the weighed nano-tourmaline powder, mechanically stirring, then carrying out ultrasonic dispersion, adding the PTFE emulsion, and mechanically stirring; after the sodium hexametaphosphate and the sodium polyacrylate in the step 1 are completely dissolved, adding the obtained water solution into a mixed solution of the nano-tourmaline powder and the PTFE emulsion in the step 2, mechanically stirring, and then carrying out ultrasonic dispersion so as to obtain the evenly dispersed and stable nano-tourmaline treatment fluid. A dust removal filter material prepared from the nano-tourmaline hybrid emulsion has very high electrets performance, can be used for collecting fine dust, increases dust filtering efficiency and dust removing rate, and reduces equipment resistance.

The invention discloses a dust removal and filtering device for a chemical workshop. The dust removal and filtering device comprises a dust collection main pipe; a dust collection branch pipe is downward and vertically mounted on the dust collection main pipe; a dust collection cover is mounted at the tail end of the dust collection branch pipe; one group of dust receiver is mounted on the dust collection main pipe at intervals; the dust receivers are located below the dust collection main pipe and are communicated with the dust collection main pipe; the rear side of the dust collection main pipe is connected with a reversed U-shaped air inducing pipe; a draught fan is mounted on the reversed U-shaped air inducing pipe; the other end of the draught fan is connected to the lower side of a water level of a water tank through an exhausting pipeline I; a reversed L-shaped exhausting pipeline II is mounted on the top of the water tank; and high-temperature-resisting and corrosion-prevention layers are arranged on pipeline inner walls of the dust collection main pipe, the dust collection branch pipe and the reversed U-shaped air inducing pipe. The dust removal and filtering device for the chemical workshop is long in service life, high in chemical dust recycling and utilization efficiency, good in filtering effect, small in environmental pollution and high in economic benefits.