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 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.

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 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.

A new type of vortex meter body structure, belonging to the technical field of flow measurement equipment, including a generator and a mounting seat; a vortex meter body structure is fixed on the mounting seat, and the vortex meter body structure consists of a flange, an upper cylinder and a triangular cylinder It is combined, the upper cylinder is connected to the bottom of the flange, the triangular cylinder is connected to the bottom of the upper cylinder, the triangular cylinder is provided with a diversion hole that runs through the surface of the two cylinders, and the diversion hole and the probe action hole form two-dimensional intersecting. The structure is simple and the working principle is clear. Compared with the traditional vortex flowmeter, the present invention does not need to stop the pipeline for a long time when the signal acquisition part fails or fails, and only needs to remove the probe parts, and use a same Replacement of parts, the whole meter can work immediately, almost has little influence on the process, has a very high interchangeability requirement, and the replacement is also very convenient. It can be quickly and comprehensively tested on the same standard pipe section, and the work efficiency has been greatly improved. improve.

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 multifunctional graphene-modified non-woven fabric and a preparation method thereof. By selecting nano-carbon black with a specific DBP value to compound with reduced graphene oxide in a specific ratio, blending with polypropylene, and melt-blowing after getting. Nano-carbon blacks with different DBP values ​​are distributed in different regions on the surface of reduced graphene oxide, forming a unique nano-composite structure, showing excellent electrical conductivity, and adding polypropylene can effectively improve the antistatic properties of non-woven fabrics. At the same time, the addition of graphene can also significantly improve the far-infrared emission, anti-ultraviolet, antibacterial and mite-removing effects of polypropylene non-woven fabrics, which can be used in home textiles, carpets, clothing, masks, medical protective gear and other fields.

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.

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 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 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.

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.