48results about How to "Small process impact" patented technology

The invention relates to the integrated circuit technique and discloses a low-voltage bandgap-free reference voltage source. According to the technical scheme, the low-voltage bandgap-free reference voltage source comprises a starting circuit composed of a CMOS transistor circuit, a first current generating circuit, a second current generating circuit, a third current generating circuit and an overlaying output circuit, wherein the starting circuit is used for providing a starting bias voltage for the whole circuit, the first current generating circuit is used for generating a current IPTAT in direct proportion to the temperature, the second current generating circuit is used for generating a current IPTOD in direct proportion to an overdriving voltage, the third current generating circuit is used for generating a current IPTTV in direct proportion to a threshold voltage, the current IPTTV is inversely proportional to the temperature, and the overlaying output circuit is used for overlaying of the current IPTAT and the current IPTTV and outputting a reference voltage VREF. The low-voltage bandgap-free reference voltage source has the advantages that the working voltage is low, the output voltage can be adjusted, influence of a technique on the low-voltage bandgap-free reference voltage source is little, and the area of a chip is small.

The invention relates to the technical field of analogue integrated circuits, in particular to a high-order temperature compensation reference source. The high-order temperature compensation reference source comprises a positive temperature coefficient current module, a negative temperature coefficient current module and a reference voltage generation module, wherein the input ends of the positive temperature coefficient current module and the negative temperature coefficient current module are connected with a power source VIN, the output end of the positive temperature coefficient current module is connected with a first input end of the reference voltage generation module, the output end of the negative temperature coefficient current module is connected with a second input end of the reference voltage generation module, and the output end of the reference voltage generation module outputs reference voltage. The high-order temperature compensation reference source has the advantages that the output reference source has higher accuracy compared with a traditional band-gap reference source; compared with a traditional high-order compensation band-gap reference source, the circuit structure of the high-accuracy reference source is simpler and is less affected by the process, and the high-order temperature compensation reference source is particularly suitable for a band-gap reference circuit.

The invention discloses a composite phosphorus removing agent and a use method thereof, wherein the composite phosphorus removing agent is used for treating municipal sewage with high total phosphorusconcentration, the total phosphorus concentration is 5-10 mg / L, and the composite phosphorus removing agent comprises the following raw materials by weight: 75-100 parts of a component A, 4.2-9.5 parts of a component B, and 3-10 parts of a component C, the component A is 15-30 parts of an aluminum salt and 60-70 parts of an iron salt, the component B is a basic flocculant and a granular flocculant, the component C is a carbon source supplementing agent, the basic flocculant is 2-3 parts of polyferric sulfate, and the granular flocculant is 2-3 parts of sodium silicate and 0.2-0.5 part of polyacrylamide. According to the present invention, the used raw materials of the phosphorus removing agent are the common water treatment agents, and are compounded, such that the phosphorus removal rateis fast, and the phosphorus removal rate can reach more than 95%, or even 100%; the process is simple, and the production cost is low; and compared with other phosphorus removing agents, the phosphorus removing agent of the present invention has the following characteristics that the whole phosphorus removing process is more than twice as fast as the similar products while microorganisms are notadversely affected.

The embodiment of the invention discloses a scan chain re-sequencing method and is applied to the technical field of an integrated circuit scanning test. In the embodiment, registers forming a scan chain are sorted according to clock tress delay from big to small, then the scan chain is segmented and recombined, and the length of the recombined scan chain is calculated and adjusted till the chain length is shorter. Clock deviations among the registers can be considered according to the embodiment, the number of the inserted registers can be decreased to the greatest extent under the situation that time constraints kept among the adjacent registers are met, the area occupied by the scan chain can be decreased, the problem of wire arrangement congestion can be relieved, and the overall power consumption of circuits can be reduced. No side effect is played on the testing time and scan coverage rate of the scan chain, and the process influence on the design is smaller.

The invention relates to a molten slag drainage device for slag wool and a use method thereof. The device comprises a slag discharge container, a slag discharge spout, a slag receiving container; the slag discharge container is connected at an inlet end of the slag discharge spout through a slag discharge guide slot; an outlet end of the slag discharge spout is connected with the slag receiving container through a slag receiving guide slot; the slag discharge spout is internally provided with a heater, and the heater is parallel to the flowing direction of molten slag in the slag discharge spout; the lower ends of supporting rods at both ends of the heater are connected with a power controller by heating wires, and the power controller is connected with a power supply; the molten slag enters the slag discharge container through a blast furnace slagging port, enters the slag discharge spout through the slag discharge guide slot, is heated in the slag discharge spout, keeps good liquidity, and is directly used for slag wool production through the slag receiving guide slot and the slag receiving container. The molten slag can flow in relatively long distance without solidification, long-distance transport of the molten slag is achieved, and the process cost for directly producing products from the molten slag is decreased significantly.

The invention discloses a phase-change warm shoe. The phase-change warm shoe comprises a shoe body and a heating device, wherein the shoe body comprises a shoe sole and a vamp which are connected with each other; at least one cavity is formed in the shoe sole, and the cavity is filled with a phase-change material; the heating device is arranged outside the shoe body and used for heating the shoe body. According to the phase-change warm shoe, the phase-change material is arranged in the cavity of the shoe sole, and the cavity of the shoe sole can contain enough phase-change materials according to requirements and is good in designability. The shoe body can be heated by the heating device in advance when the shoe is used, and the shoe can be normally worn after being quickly heated. A circuit is arranged on the shoe sole and the phase-change material is prevented against trampling and pressure bearing, so that the warm shoe is safe and reliable.

A grid drive circuit for a metallic oxide semiconductor field effect transistor to output a linear current is provided. The grid drive circuit comprises a P-type metallic oxide semiconductor field effect transistor of diode connection configuration, an N-type metallic oxide semiconductor field effect transistor of diode connection configuration, and a voltage input circuit at least including a metallic oxide semiconductor field effect transistor. If an output voltage of the grid drive circuit is connected to a grid electrode of a metallic oxide semiconductor field effect transistor, the metallic oxide semiconductor field effect transistor outputs a current having a linear relationship with an input voltage. According to the invention, the circuit and the elements are simple, reducing production cost.

The invention provides an adsorption desulfurizer capable of being thermally regenerated and having a COS hydrolysis function as well as a preparation method and application of the adsorption desulfurizer. According to the invention, macroporous activated carbon is used as a carrier, and (BDBU)PF6 and ferric hydroxide are loaded; the loading capacity of the (BDBU)PF6 is 0.1-0.5% by mass, and the loading capacity of the ferric hydroxide is 5-10% by mass; and the adsorption desulfurizer has high H2S and COS desulfurization precision and high desulfurization capacity, the influence of a water vapor concentration and a CO2 concentration in gas flow on the desulfurization performance of the adsorption desulfurizer is small, and the COS hydrolysis performance and desulfurization precision of the adsorption desulfurizer are maintained before high desulfurization capacity is achieved.

The invention relates to a thermal printing head heating substrate ground glaze printing preparation method. The method comprises the following steps that firstly, a reduction reaction is carried outon a potassium iodide etching solution containing gold ions so as to precipitate gold metal; and then the treated potassium iodide etching solution is subjected to an iodide ion oxidation reaction, sothat iodine molecules are separated out. The gold metal and iodine molecule components in the etching solution can be effectively and continuously recovered through the method.

The invention belongs to the technical field of electronic circuits, and particularly relates to a power rail circuit for a high-voltage Buck converter. According to the power rail circuit for the high-voltage Buck converter, a pre-step-down module is omitted through a simple auxiliary starting circuit, power consumption is reduced while the circuit structure is simplified, and the function of low power consumption of a power rail is achieved. The whole Buck converter realizes starting of an input current source as low as [mu] A level, and is in a low-power-consumption state in the whole standby process. Compared with the clamping of a diode connection mode, the floating rail LDO clamped by the operational amplifier has the advantage that the influence of the process on the output VOUT signal is small. The whole power rail circuit does not use an integrated voltage-regulator tube, and the output of the power rail circuit is small in change and high in stability under the full process angle.

An alignment mark structure of a medium substrate zero layer is a right-angle-type longitudinal through hole arranged at an edge of the medium substrate, and can be a right-angled triangle, a rectangle and a right-angled trapezoid. Materials of the medium substrate on which the alignment mark structure of the medium substrate zero layer is located comprise more than 99.6% of alumina ceramic and sapphire, and the medium substrate has a thickness of 0.1 to 0.65 mm. According to the alignment mark structure, not only can the aligning precision be ensured when photoetching of multilayer metal film is performed on the medium substrate containing micro array through holes, but also the yield of microwave film integrated circuit can be improved.

The invention discloses a method for reducing the disperse of high-density doping material on extent substrate, which adds a silicon nitride film on an extent substrate provided with polysilicon and silicon oxide at back, to reduce the thickness demand of oxide film at back, reduce production cost, reduce the effect on following process, and reduce the outward disperse of high-density doping material.

The invention provides aldehyde adsorption resin and a preparation method and application thereof. Amino groups of the resin are rich in amino and hydrazino polar groups, the content of the amino groups is 10-20 times that of common modified macroporous resin, the amino groups and the hydrazino groups play a synergistic effect, a better removal effect on aldehydes is achieved, acid / alkali regeneration is easy, and the performance is stable. After the wastewater passes through the azeotropic tower and the stripping tower and is adsorbed by resin, an aqueous solution of which the COD is less than 1000mg / L and the total aldehyde is less than 500mg / L is obtained and can be subjected to biochemical treatment. According to the method, the wastewater treatment cost is effectively reduced, or organic matters in the wastewater are recycled, the waste gas emission is reduced, and economic and environment-friendly values are realized.

The invention relates to a technological process changing method and a method for monitoring a changed technological process. The technological process changing method comprises the steps of pre-batching wafer groups to obtain a plurality of wafer batches; selecting the wafer batches applicable to changing application according to current change application, wherein wafers in the wafer batches include standard wafers; selecting changed wafers in the selected wafer batches applicable to the changing application except the standard wafers so as to obtain a wafer batching result; executing a technological process based on the wafer batching result. By means of the technological process changing method, change repeating rate and change cost of the technological process can be reduced.

A vortex meter body structure used for flow measurement of small-diameter pipelines belongs to the technical field of flow measurement equipment, including a generator and a mounting seat; , The upper cylinder and the triangular cylinder are combined. The flange is provided with probe mounting holes and meter body mounting holes. The meter body mounting holes are evenly distributed around the center of the flange. The probe mounting holes are set away from the center of the flange. The probe installation hole is arranged downstream of the triangular cylinder. When the signal acquisition part fails or fails, the present invention does not need to stop the pipeline operation for a long time, only needs to remove the probe part and replace it with an identical part, and the whole meter can work, which has little influence on the process and has the advantages of It has extremely high interchangeability requirements and is extremely convenient to replace. It can quickly and comprehensively detect on the same standard pipe section. The key is that it meets the flow measurement of small-diameter pipes, and the work efficiency has been greatly improved.

The invention discloses a speed-regulating groove component which comprises a body, wherein speed-regulating grooves of different pore sizes are formed in the body; a tank body is arranged on the speed-regulating grooves; and dislocation sections in different planes and / or different circle centers and / or different angles and / or different sections with the tank body are arranged on the speed-regulating grooves. According to the dislocation sections, a support on a sealing gasket can be formed, the possibility of enabling the sealing gasket to protrude into the speed-regulating groove with deformation can be reduced, and the influence of the protrusion of the sealing gasket into the speed-regulating groove with deformation on the actual liquid flow passing cross sectional area of the speed-regulating groove is further reduced. According to a non-contact processing manner, the process influence in the injection molding process can be reduced, the cutting and punching precision can be ensured on most of the materials, and stable quality is maintained. The speed-regulating groove component disclosed by the invention is applied to the fields of medical equipment fittings and medical equipment.

A high-matching high-precision voltage difference generating circuit comprises a control signal generating circuit and a voltage difference circuit. The control signal generating circuit comprises a clock chip and a control circuit, the clock chip comprises two input ports and a plurality of signal output ports, the signal output ports are connected with the control circuit, the control circuit receives electric signals of the signal output ports and distributes a power source into two output circuits to output through current output ports, and the two output circuits are unchanged in difference value. The current output ports of the control circuit are connected with the voltage difference circuit, and the voltage difference circuit comprises triodes used for forming voltage difference. The high-matching high-precision voltage difference generating circuit has advantages that voltage difference is formed by clock control signals for controlling a duty ratio and triode connection, eachcircuit of current is sampled, the voltage difference is only associated with the duty ratio of the clock control signals and parameters of the triodes, low process influences are realized, and the defect of current mirror mismatching is overcome.

The invention relates to the technical field of analog integrated circuits, in particular to a high-order temperature compensation reference source. The reference source of the present invention includes a positive temperature coefficient current module, a negative temperature coefficient current module and a reference voltage generation module; the input terminals of the positive temperature coefficient current module and the negative temperature coefficient current module are connected to the power supply VIN; the output terminals of the positive temperature coefficient current module are connected to The first input end of the reference voltage generation module, the output end of the negative temperature coefficient current module are connected to the second input end of the reference voltage generation module, and the output end of the reference voltage generation module outputs a reference voltage. The beneficial effect of the present invention is that the output reference source has higher precision than the traditional bandgap reference source; and compared with the traditional high-order compensation bandgap reference source, the circuit structure of the high-precision reference source realized by the present invention is simpler , is less affected by the process. The invention is particularly applicable to bandgap reference circuits.

The invention discloses a novel vortex-street meter body structure, and belongs to the technical field of flow measurement devices. The novel vortex-street meter body structure comprises a generating body and an installing base. The vortex-street meter body structure is fixedly arranged on the installing base, and is composed of a flange, an upper cylinder and triangular cylinder bodies, the upper cylinder is connected to the bottom of the flange, the triangular cylinder bodies are connected to the bottom of the upper cylinder, guiding holes penetrating through the surfaces of the two cylinder bodies are formed in the triangular cylinder bodies, and two vertical intersection parts are formed through the guiding holes and a probe action hole. The novel vortex-street meter body structure is simple and clear in working principle; compared with a traditional vortex street flow meter, according to the novel vortex-street meter body structure, when a signal collection part faults or fails, a pipe does not need to stop running for a long time, a probe part is only disassembled and is replaced with a same part, a whole meter can work, the influence on the technology is almost small, the extremely-high interchangeability requirements are met, and replacement is also extremely convenient; rapid and comprehensive inspection can be carried out on a same-standard pipe section, and the working efficiency is improved to a large degree.

The invention discloses a zero-layer alignment mark structure for a photo-etched pattern on a medium substrate. The zero-layer alignment mark structure is a right-angle longitudinal through hole formed in the edge of the medium substrate. The zero-layer alignment mark structure for the medium substrate can be a right triangle, a rectangle or a right trapezoid; the medium substrate on which the zero-layer alignment mark structure is arranged comprises an aluminum oxide ceramic with purity of more than 99.6% and a sapphire; and the medium substrate is 0.1-0.65mm in thickness. By adopting the alignment mark structure, alignment accuracy of a photo-etched film resistor and a metal conduction band pattern on the medium substrate with a micro array metalized through hole can be guaranteed and yield of a microwave film integrated circuit can be also increased.

The invention discloses a degassing and deodorizing method for acetylene apparatus carbon black water. The degassing and deodorizing method comprises that (1) to-be-treated carbon black water is pressurized, the pressured carbon black water enters a gas stripping tower, and is sprayed on the middle-upper portion of the gas stripping tower, and gas stripping gas enters the tower from the middle-lower portion of the gas stripping tower, and is concentrated tail gas from a concentration section; (2) carbon black water recycled by an acetylene apparatus enters the water spraying section on the topportion of the gas stripping tower, the stripped gas stripping gas is subjected to spray cooling with the carbon black water, and the cooled gas stripping gas enters the middle-lower portion of a vacuum pump sucking tank from the top portion of the gas stripping tower; (3) the carbon black water is sprayed downward from the upper portion of the vacuum pump sucking tank, the stripped gas strippinggas discharged from the top portion of the gas stripping tower is further cooled in the tank, and the gas stripping gas discharged from the tank top is conveyed to a cracking gas total pipe by a vacuum pump; and (4) the carbon black water discharged from the bottom portion of the vacuum pump sucking tank is introduced into the tower kettle of the gas stripping tower, the discharged carbon black water and the carbon black water degassed at the tower kettle are pressurized, and the pressurized carbon black water is conveyed into a subsequent carbon black water groove so as to be further treated. According to the present invention, with the method, the acetylene apparatus carbon black water degassing effect can be improved, and the environmental protection problem can be solved.

The invention discloses a hardened feed point material of a printed antenna and a preparation method of the hardened feed point material, and relates to the technical field of hardened feed point materials of printed antennas, in particular to the hardened feed point material of the printed antenna and the preparation method of the hardened feed point material. The hardened feed point material ofthe printed antenna is prepared from the following raw materials in parts by weight: an original basic slurry, a silver metal slurry, a nickel metal slurry, a copper metal slurry, a gold metal slurry,a silicon dioxide powder and a conductive titanium dioxide powder. After the technical scheme is adopted, the invention has the beneficial effects that through the selection and combination of the various materials, the hardness can reach the test life of 100-3000 circles of a paper tape friction testing machine on the premise of ensuring the electric conductivity; the product has good printing manufacturability and can be suitable for various different processes such as printing and grouting; and according to the requirements of customer products, the material formula is selected and combined. Parameters such as conductivity and adhesive force of the product can reach the standards.

This invention discloses a method to create bearing in MBMS. Wherein, during the activation and deactivation process for MBMS business, using special MBMS context mark to replace MBMS_NSAPI and activate more than eleven MBMS bear businesses and avoid the complexity of hand operation. On this condition, it also uses extended TI mark to identify more than sixteen dual-direction information stream. There is another method of the invention to create bear in MBMS. During the activation and deactivation process for MBMS business, using special MBMS context mark to replace the MBMS_NSAPI and TI; then, it can not only activate more than eleven MBMS bear business, but also identifies more dual-direction information stream.

The embodiment of the invention discloses a method for re-sequencing scan chains, which is applied to the technical field of integrated circuit scanning test. The chip area is reduced, the additional expenditure brought by the operation of inserting the scan chains into a buffer is reduced and the wiring jamming degree is reduced. In the embodiment of the invention, the method comprises the following steps: forming a set G by all registers in the scan chains which are not re-sequenced; randomly selecting one register from the set G and using the selected register as a present register; selecting the register having the minimal consumption value with the present register from the rest registers in the set G and using as a to-be-re-sequenced register; if the Manhattan distance between the to-be-re-sequenced register and the present register is not more than 1max, adding the present register into a new register sequence; using the to-be-re-sequenced register as the present register and executing the steps till no register element exists in the set G.

The invention discloses an anti-static and high-wear-resistant tire tread rubber and a preparation method thereof. The nanometer carbon black with a specific DBP value is selected to be compounded with reduced graphene oxide in a specific ratio, and then mixed with a conventional tread rubber to obtain the compound. . Nano-carbon blacks with different DBP values ​​are distributed in different areas on the surface of reduced graphene oxide, forming a unique nano-composite structure, showing excellent electrical conductivity. After adding conventional tread rubber, it can effectively improve its electrical conductivity and wear resistance. properties without reducing tensile strength. At the same time, the addition amount of graphene and carbon black is significantly lower than that of conventional conductive additives, which has the advantages of low cost, high addition, and balanced performance, and can be used in automobile and aircraft tires.

The invention relates to an underground magnetic positioning guiding tool, and especially relates to a magnetic source beacon used for underground drilling positioning and a use method thereof. The technical scheme is that the magnetic source beacon comprises a cable joint, an instrument cabin, a power supply connecting short section, an alternating magnetic field signal generation short section, a guiding piece connecting short section, a waterpower plug seat, a waterpower plug, and a metal guiding head. The lower part of the instrument cabin is connected with the cable joint. The upper part of the instrument cabin is connected with the power supply connecting short section, the alternating magnetic field signal generation short section, and the guiding piece connecting short section in sequence. The upper part of the guiding piece connecting short section is connected with the waterpower plug seat. The waterpower plug seat fixes the waterpower plug through a waterpower plug pin. The waterpower plug is connected with the metal guiding head. Beneficial effects of the method are that magnetic source beacon can be effectively realized, the magnetic source beacon is good in controllability, high in positioning precision, simple in structure, convenient in operation, and low in influence on well drilling technology.