102 results about "Breakdown phenomenon" patented technology

There is provided a semiconductor device having a novel structure in which high reliability and high field effect mobility can be simultaneously achieved. In an insulated gate transistor formed on a single crystal silicon substrate, pinning regions 105 and 106 are formed at the ends of a channel formation region 102. The pinning regions 105 and 106 suppress the expansion of a depletion layer from the drain side to prevent a short channel effect. In addition, they also serve as a path for extracting minority carriers generated as a result of impact ionization to prevent breakdown phenomena induced by carrier implantation.

The invention discloses working electrolyte of a 650V-700V extra-high-voltage aluminum electrolytic capacitor. The working electrolyte of the 650V-700V extra-high-voltage aluminum electrolytic capacitor comprises, by weight, 45-65% of primary solvents, 5-20.5% of secondary solvents, 10-20% of solutes, 8-25% of spark voltage improvers, 5-10% of stabilizers, 0.2-3% of hydrogen absorbents, and 2-5% of other additives. The invention further discloses a preparation method of the working electrolyte of the 650V-700V extra-high-voltage aluminum electrolytic capacitor and the 650V-700V extra-high-voltage aluminum electrolytic capacitor. According to the 650V-700V extra-high-voltage aluminum electrolytic capacitor, the working electrolyte and the preparation method of the working electrolyte, the spark voltage improvers and the stabilizers within the reasonable ranges are used, the high-voltage resistance and high-temperature resistance of the electrolyte are improved, and meanwhile the working electrolyte has low gas production performance. When the aluminum electrolytic capacitor with the electrolyte is subjected to a ripple current life test at 85 DEG C for 2000 hours, the aluminum electrolytic capacitor can resist the voltage of 650-700V and even higher voltage, and a breakdown phenomenon caused by unstable spark voltage of the electrolyte is avoided.

The invention discloses a GIS fault diagnosis and reliability analysis method based on fuzzy Petri. According to the method, a GIS fault modeling and inference method of a fuzzy Petri net is put forward on the basis of the randomness and diversity of GIS faults and the fuzziness of fault symptoms, the theory of the Petri net and the fuzzy inference rules are organically combined together, and the high-efficiency and accurate parallel inference capacity is achieved. Through the combination of lots of statistics fault cases, the fault diagnosis model of a GIS based on the FPN is established. When the system does not fail, matrix forward reasoning is conducted on the fault state of the GIS by online monitoring and predicting the possible fault symptoms, the credibility of all places can be rapidly and accurately calculated, and the importance degree of the initial place is analyzed; fault reasons are found through backward fuzzy inference rules under the known fault phenomenon.

The invention discloses a method and device for generating a record of a document used recently. The method comprises the steps that a copy of the document is automatically saved to an appointed temporary folder according to a preset time interval in the process that the document is edited; if a preset error event happens in the process that the document is edited, the name and the path of the document copy in the process that the document is automatically saved will be acquired; the corresponding relation between the name and the path of the document copy, and the time when the document is automatically saved most recently are recorded; the name of the document copy is displayed in a list of documents used recently according to recorded information, and the copy, automatically saved most recently, of the document is opened according to the path of the document copy. By the adoption of the method and device for generating the record of the document used recently, convenience is provided for recovery of automatically-saved documents through the document used recently when error phenomena happen, such as the program breakdown phenomenon.

A main circuit switching unit and an isolator are accommodated in a vacuum container. A first conductor and a main circuit conductor are arranged to extend in and out of the vacuum container. A movable electrode of the main circuit switching unit is connected to the first conductor through a first flexible conductor, and a movable electrode of the isolator is connected to the main circuit conductor through a second flexible conductor. A shield is arranged around the first conductor and the main circuit conductor. Another shield is arranged around a connecting portion between the first flexible conductor and the movable electrode of the main circuit switching unit. A still another shield is arranged around the isolator. A further another shield is arranged around the second flexible conductor. These shields are secured to the vacuum container through insulating spacers. This arrangement instantly eliminates a dielectric breakdown phenomenon that occurs at electric field concentrated regions by the shields to prevent a dielectric breakdown caused by particulate foreign matters and thereby improve an insulation reliability of the devices.

The invention discloses a touch panel and a making method thereof and a touch device, and the touch panel and the touch device are used for reducing the electrostatic breakdown phenomenon. The touch panel comprises a first electrode, a second electrode, a grounding line located in a non-touch area and at least one group of mutually insulated electrostatic guide lines which are arranged between the first electrode and the second electrode; the first electrode and the second electrode are located on the same layer in a touch area and arranged in a mutually crossed mode; the first electrode comprises multiple first sub electrode blocks which are arranged in the first direction, the second electrode comprises multiple second sub electrode blocks which are arranged in the second direction, every two adjacent second sub electrode blocks are connected with each other in the second direction, every two adjacent first sub electrode blocks are connected in a bridged mode through a connection bridge in the first direction, and the first direction is perpendicular to the second direction; each group of the electrostatic guide lines walk along gaps between every two adjacent first sub electrode block and second electrode block in the touch area and pass through at least one bridge connection area and are conductive with the grounding line in the non-touch area.

The invention relates to a fault phenomenon correlation analysis method for removed electric energy meters. The method comprises the following steps: 1) distinguishing electric energy meters accordingto fault types and fault quantities of the removed electric energy meters, and dividing the electric energy meters into a single fault type and a composite fault type; (2) eliminating electric energymeter faults caused by user or worker installation problems by virtue of troubleshooting; (3) dividing the troubleshot electric energy meters into different units according to different batches, andrespectively calculating a fault occurrence correlation coefficient for the electric energy meters in each unit; and (4) further analyzing fault occurrence time of electric energy meters correspondingto correlation faults with respect to correlation faults with the correlation coefficient exceeding 0.4, and judging whether correlation fault belongs to the electric energy meter correlation fault in the batch. According to the analysis method disclosed by the invention, the correlation of the electric energy meter faults can be accurately and reasonably evaluated, so that the reliability of electric energy meter assets is improved, and reasonable correlation pre-estimation is made for electric energy meter correlation fault disposal.

The invention discloses a method, a device and a system for processing a website causing browser breakdown, and belongs to the technical field of terminal test. The method comprises the following steps that a website list to be tested is obtained, and the website to be tested comprises at least one website; a browser to be tested is controlled for sequentially loading the webpage of each website in at least one website, and in addition, the website of the webpage causing the breakdown of the browser to be tested is recorded. Through the adoption of the technical scheme, after the browser of a mobile terminal generates the breakdown phenomenon after the browsing of some webpages, the website of the webpage causing the breakdown of the browser to be tested can be automatically and effectively obtained so that the problem of breakdown of the browser of the mobile terminal during the browsing on the webpage of the websites is solved according to the website of the webpage causing the breakdown of the browser to be tested in the subsequent time, so the browser of the mobile terminal can support the browsing of more websites, and the use convenience is provided for the browser of the mobile terminal.

A semiconductor memory unit and memory array based on the breakdown phenomenon of ultra-thin (50 A or less) medium is disclosed. A data storage element around an ultra-thin medium layer (grid oxidizing layer) is made up for storing information. Its method is to apply a stress to said ultra-thin medium to break it down, so creating the leakage current level of memory unit. Its read-out is by sensing the current sucked by the unit. It is made up by advanced CMOS logic technology.

The present invention relates to a coaxial connector comprising:a body; anda central contact mounted in the body with interposition of insulation;wherein the insulation comprises at least two distinct portions:a) that are separated by an interface presenting at least a fraction that extends obliquely relative to the axis of the connector; and / orb) that are made of different dielectric materials;the connector being configured to withstand breakdown phenomena at altitude, in particular under vacuum conditions.

A defoaming method capable of destroying foams generated when a container is filled with drink, or the like, efficiently at a high speed and destroying foams effectively even in the case of a container having a narrow mouth. Liquid surface (6) in a container (1) is irradiated with pulse-like light (2) and a pulse-like sound wave (8) is generated from an irradiated point (7) as a sound source. The pulse-like sound wave thus generated propagates from the sound source as a strong spherical wave to reach a bubble (9) and to destroy the bubble. It can also destroy a bubble located at a place remote from the optical path quickly, thus destroying bubbles efficiently at a high speed. Alternatively, pulse-like light is condensed at a gas portion above the liquid surface and the bubbles can be destroyed with a shock wave generated by breakdown phenomenon.

The invention relates to a real-time testing and analysis system for electrical characteristics and breakdown characteristics of thin films, which comprises an electrical testing unit, a real-time microscopic image acquisition unit and a comprehensive analysis and processing unit, wherein the electrical testing unit comprises a sample-clamping base, testing probes, a digital source meter and a testing control module; the testing probes are arranged on the sample-clamping base, and the testing probes, the digital source meter and the testing control module are connected sequentially; the real-time microscopic image acquisition unit comprises a data code optical microscopy module and an image acquisition module which are connected with each other, and the data code optical microscopy module is arranged on the sample-clamping base; the comprehensive analysis and processing unit is respectively connected with the testing control module and the image acquisition module. Compared with the prior art, the real-time testing and analysis system for electrical characteristics and breakdown characteristics of thin films has the advantages of easiness in operation, little consumed time, high intuition and the like, and can effectively analyze and evaluate the breakdown mechanism of thin film materials and the cause of the breakdown phenomenon.

The invention provides an optimal troubleshooting method based on comprehensive cost, which comprises the following steps of: comprehensively considering factors, such as detection cost, fault probability and the like; calculating a troubleshooting detection sequence; summing detection costs of all points to obtain a total detection cost; respectively multiplying the fault probability of each fault and the total detection cost, and then summing to serve as a comprehensive cost which corresponds to the fault phenomenon under the fault diagnosis scheme; and comparing the comprehensive cost corresponding to different schemes to select the scheme with the minimum comprehensive cost as an optimal troubleshooting scheme. In the optimal troubleshooting method, the detection cost and the fault probability are comprehensively considered, and therefore the optimal troubleshooting method is practical, is suitable for the situation that the total troubleshooting cost of a great quantity of products is considered to be lowered, such as the daily troubleshooting of a large quantity of products produced on the batch in factories, and has a strong application prospect.

The invention discloses a production method of high-pressure formation foil in foil-free ash, wherein medium and high pressure corrosion foil is subjected to pre-treatment, multi-stage formation treatment, primary high-temperature roasting treatment, primary formation repair treatment, secondary formation repair treatment, secondary high-temperature roasting treatment, and third-time formation repair treatment and post-treatment in sequence. Middle treatment is added between the primary formation repair treatment and the secondary formation repair treatment. In the middle treatment, the corrosion foil subjected to primary formation repair treatment is subjected to acid pickling by adopting a phosphoric acid solution, wherein the concentration of the phosphoric acid solution is 1.4-2.0 mol / L, and the acid pickling temperature ranges from 60 DEG C to 80 DEG C, and the acid pickling time is 8-20 min. According to the method, the relation between the foil ash and the performance of the aluminum electrolytic capacitor is found for the first time. A middle process of phosphoric acid pickling is added to remove formation foil ash powder, so that the dust control can be improved, and aluminum electrolytic capacitor breakdown phenomena can be reduced in an aluminum electrolytic capacitor manufacturing and cutting process.

A main circuit switching unit and an isolator are accommodated in a vacuum container. A first conductor and a main circuit conductor are arranged to extend in and out of the vacuum container. A movable electrode of the main circuit switching unit is connected to the first conductor through a first flexible conductor, and a movable electrode of the isolator is connected to the main circuit conductor through a second flexible conductor. A shield is arranged around the first conductor and the main circuit conductor. Another shield is arranged around a connecting portion between the first flexible conductor and the movable electrode of the main circuit switching unit. A still another shield is arranged around the isolator. A further another shield is arranged around the second flexible conductor. These shields are secured to the vacuum container through insulating spacers. This arrangement instantly eliminates a dielectric breakdown phenomenon that occurs at electric field concentrated regions by the shields to prevent a dielectric breakdown caused by particulate foreign matters and thereby improve an insulation reliability of the devices.

A defoaming method capable of destroying foams generated when a container is filled with drink, or the like, efficiently at a high speed and destroying foams effectively even in the case of a container having a narrow mouth. Liquid surface (6) in a container (1) is irradiated with pulse-like light (2) and a pulse-like sound wave (8) is generated from an irradiated point (7) as a sound source. The pulse-like sound wave thus generated propagates from the sound source as a strong spherical wave to reach a bubble (9) and to destroy the bubble. It can also destroy a bubble located at a place remote from the optical path quickly, thus destroying bubbles efficiently at a high speed. Alternatively, pulse-like light is condensed at a gas portion above the liquid surface and the bubbles can be destroyed with a shock wave generated by breakdown phenomenon.

The invention belongs to the field of pier protection and earthquake resisting and provides a construction method for an ecological flexible geogrid reinforcement pier to solve the problems that most pier soil retaining facilities are of a rigid structure, and under the combined effect of seismic waves, ship loads and water pressure, breakdown phenomena that tie bars are pulled out, slip surfaces are caused inside and outside or slope faces are deformed and uplifted seriously occur easily. According to the pier, a soil body is reinforced by geogrid devices which are manufactured through the reverse wrapping technology and plant root systems, the geogrids and the plant root systems are jointly used for being occluded with soil particle padding, the stability of slopes can be greatly enhanced, and the capacity of bearing the ship loads and the water pressure of the slope faces is enhanced. The geogrid devices are distributed in an upper-lower layer graded step shape, stress is more reasonable, the structure is more stable, and deformation fatigue life is long.

The invention discloses a complex network oriented security risk analysis method, including the following steps: combining the design characteristics of a data network service, abstracting a data network by using a related modeling method of a complex network, and then studying the topological characteristics of the data network in combination with statistics and the own characteristics of different information systems, analyzing the causes of different characteristics on this basis, and further finding out possible security risks; and meanwhile, studying cascading breakdown phenomena of different network elements to reduce the network security risks; through consistent inspection and test evaluation methods, aiming at a data network physical layer, a link layer, a network layer, a management layer and other hierarchical structures, performing quantitative evaluation on the data network configuration inspection and security, identifying the levels of the security risks, developing a suitable network security policy, and taking appropriate control objectives and control modes to control the network security risks to ensure that the risks are avoided, transferred or dropped to an acceptable level.

The invention discloses an establishing method for a fault tree. The establishing method comprises the following steps of: resolving fault reasons layer by layer to obtain the reason of each layer; determining a severity weight coefficient of each layer of reason; determining a frequency degree weight coefficient of each layer of reason; establishing the fault tree, wherein fault phenomena and various reasons form various components of the fault tree; arraying the various components according to the resolving relationship; arraying various reasons resolved from the same component according to the severity weight coefficient from small or large or from large to small; expressing the logical relation between each reason and next layer of reason resolved from the reason; and marking the frequency degree weight coefficient for each reason. According to the establishing method for the fault tress, which is disclosed by the invention, the severity and the weight coefficient of each fault phenomenon can be embodied while the mutual relation among various reasons causing the fault phenomena is embodied; and a complex mathematical model is not required. According to the establishing method, the fault tree can be quickly established for the fault phenomena according to the specific flow design.

The present invention relates to a very-large-power connector, concretely a coaxial connector comprising: a body; and a central contact mounted in the body with interposition of insulation; wherein the insulation comprises at least two distinct portions: a) that are separated by an interface presenting at least a fraction that extends obliquely relative to the axis of the connector; and / or b) that are made of different dielectric materials; the connector being configured to withstand breakdown phenomena at altitude, in particular under vacuum conditions.

The present invention relates to a dry-type capacitor type composite insulating sleeve pipe production method which comprises a step of taking a metal tube conductor and winding a layer of glass fiber cloth belt around the surface of the conductor, a step of sleeving outer side wall of the conductor wound by the cloth belt with a heat-shrinkable sleeve pipe, carrying out vacuum pumping processing on the space between the heat-shrinkable sleeve pipe and the conductor and pouring epoxy resin into the cavity between the heat-shrinkable sleeve pipe and the conductor from the resin poring port on the conductor, and a step of heating, drying and curing the conductor and winding a layer of semiconductor glass fiber on the outer wall of the heat-shrinkable sleeve pipe. The method has the advantages that an original glass fiber cloth belt layer is replaced by the staggered winding of glass fiber cloth belt and a semiconductor conformal material, and a breakdown phenomenon can be avoided well.

The present invention relates to an insulated pipe type bus production method which comprises a step of taking a metal tube conductor and winding a layer of glass fiber cloth belt around the surface of the conductor, a step of sleeving the conductor with a heat-shrinkable sleeve pipe, carrying out vacuum pumping processing on the space between the heat-shrinkable sleeve pipe and the conductor and pouring epoxy resin into the cavity between the heat-shrinkable sleeve pipe and the conductor from the resin poring port on the conductor until the resin is full, a step of curing the epoxy resin, a step of winding a layer of shielding copper tape around the outer side wall of the heat-shrinkable sleeve pipe, and a step of packaging an insulating sheath around the outer side wall of the shielding copper tape layer to obtain the prepared product. The method has the advantages that when the used is used to make an insulated pipe type bus, the heat-shrinkable sleeve pipe is added, firstly the vacuum pumping processing is carried out, then the epoxy resin is poured and the drying is carried out, by using the characteristic that the heat-shrinkable sleeve pipe shrinks in the condition of heating, redundant epoxy resin and air are discharged, through the processing method, the generation of pores can be effectively reduced, and a breakdown phenomenon is avoided.

A high voltage gallium nitride based semiconductor device includes an n-type gallium nitride freestanding substrate, and an n-type gallium nitride based semiconductor layer including a drift layer formed on the surface of the n-type gallium nitride freestanding substrate so as to have a reverse breakdown voltage of not less than 3000 V. The drift layer is configured such that a carbon concentration is not less than 3.0×1016 / cm3 in a region which has an electric field intensity of not more than 1.5 MV / cm when a maximum allowable voltage where there occurs no breakdown phenomenon is applied as a reverse bias voltage.

The invention discloses a vibration flat rammer, which is characterized by the following: setting motor on the frame and armrest on the armrest seat; fixing flange on the motor; setting arm seat absorber and absorber protector between armrest seat and upper installment plate; fixing the loading system on the rack lower installment plate; setting pulley box with driving structure in connection with the motor and loading system on the installment flange; adapting front eccentric block, middle eccentric block and back eccentric block in the loading case to generate exciting force to compact ground foundation through motor driving system; setting lubrication system in the loading case to lubricate the operation part and reduce noise. The invention adapts universal joint as driving part, which avoids the rigidity driving shaft breakdown phenomenon.

A reprogrammable non-volatile memory array and its memory unit is disclosed, which is based on the breakdown phenomenon of ultra-thin medium. Each memory unit has one data storage element around an ultra-thin medium (grid oxidizing layer) which is used to store information. Its method is applying stress to break down it for creating the leakage current level needled by memory unt. Its reading out is realized by the sensing unit to suck current. Said ultra-thin (50 A or less) is made up by advanced CMOS logic technology.

The invention discloses a cable dragging and moving device. The cable dragging and moving device comprises a cable supporting plate and a supporting plate. The bottom of the cable supporting plate is fixedly connected with the supporting plate. The cable supporting plate is in a semi-arc shape. A cable clamping groove matched with a cable is formed in the cable supporting plate. The bending radius of the cable supporting plate is larger than the minimum bending radius of the cable. A cable fastening device is arranged on the cable supporting plate. The cable dragging and moving device has the advantages that when the cable is dragged and moved, the cable does not slide or disengage in the cable clamping groove, and the cable is more conveniently and rapidly dragged and moved; the bending radius of the cable supporting plate is larger than the minimum bending radius of the cable, the bending radius of the cable is guaranteed, therefore, the damage degree of an insulating layer of the cable is reduced, the frequent occurrence of the cable breakdown phenomenon is avoided, the service life of the cable is prolonged, the labor intensity of workers is relieved, time and labor are saved, the working efficiency is improved, and normal digging work cannot be affected.

The invention provides a cable insulation state voltage-withstanding detection method and detection apparatus. Specifically, the method comprises the following steps of exerting a periodically changing index waveform voltage on a detected cable; increasing the exerted voltage level until the maximum voltage value allowed to be exerted on the detected cable is reached or breakdown phenomena or potential breakdown risks are found during a voltage boosting process; recording the maximum voltage value and achieving detection on the cable insulation state. The index waveform voltage excitation is adopted for voltage-withstanding detection. Therefore, detection equipment is enabled to have a small volume and becomes lighter. The index waveform AC voltage has voltage commutation. Therefore, no charge accumulation effects exist.

The invention provides a display device, and belongs to the technical field of display, the display device comprises a display screen body and a first circuit board in signal connection with the display screen body; wherein the first circuit board is provided with a binding area, and a plurality of first grounding structures are arranged in the binding area; the first grounding structure is electrically connected with the grounding end of the first circuit board. According to the display device, static electricity in the display device can be released in time, the display effect of the displaydevice is improved, and the electrostatic breakdown phenomenon is avoided.