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75results about How to "Less likely to fail" patented technology

High electron mobility transistor device and manufacturing method thereof

The invention provides a high electron mobility transistor device, relating to the technical field of semiconductors. The first dielectric layer of the device is on a semiconductor layer between a gate and source and drain electrodes. A first source field plate is on the first dielectric layer between the gate and the drain electrode. A second dielectric layer is on the gate, the first source field plate and the first dielectric layer. A second source field plate is on the gate and the first source field plate. The first source field plate and the second source field plate weaken the strong electric field close to a gate area between the gate and the drain electrode. The probability of the failure of the first dielectric layer and the second dielectric layer under long-time stress and high voltage stress is little. According to the device, the strong electric field close to the gate area between the gate and the drain electrode can be weakened, and the probability of the failure of the dielectric layers between the gate and the source field plates can be reduced. The invention also provides a manufacturing method of the high electron mobility transistor device, the process is simple, and the reliability of the manufactured device is high.
Owner:昆山工研院第三代半导体研究院有限公司

Nested water tank capable of reducing vibration and dissipating energy

The invention relates to a nested water tank capable of reducing vibration and dissipating energy. The nested water tank comprises a spring shock-absorbing seat. A water tank body is arranged on the spring shock-absorbing seat and comprises an outer-layer water tank. A middle-layer nested water tank is arranged in the outer-layer water tank, an inner-layer nested water tank is arranged in the middle-layer nested water tank, and a pressure relief opening is formed at the top end of the outer-layer water tank. The nested water tank capable of reducing vibration and dissipating energy has the advantages that fire demand water or domestic water can be stored on a roof or a mechanical floor of a general high-rise building or a super high-rise building by utilization of the nested water tank, structural vibration energy can be dissipated through dampening effect when an earthquake or strong breeze disaster occur, vibration amplitude of the water tank body and the building is reduced, and damage of the earthquake to the main body structure of the building and the water tank body is reduced. In addition, effect of vibration reduction and energy dissipation is good, efficacy loss cannot occur easily, application range is wide, applicability is strong, the structure is simple, manufacture and installation are convenient, an existing water tank can be transformed to be the nested water tank, cost is low, dual functions of the water tank are achieved, and practical applicability is strong.
Owner:CHINA RAILWAY CONSTR GROUP +1

Socket and spigot type pipeline connector with anchoring structure

ActiveCN105240633AImprove anchoring reliabilityReduce shear forcePipe-jointsCast ironEngineering
The invention relates to a socket and spigot type pipeline connector with an anchoring structure. The socket and spigot type pipeline connector with the anchoring structure is used for continuous nodular cast iron pipes. By means of the socket and spigot type pipeline connector, anchoring reliability can be improved, structural service life can be prolonged, pipeline maintaining cost can be reduced, optimization and simulation of the connector structure can be performed easily, and pipeline transporting capacity is improved. The socket and spigot type pipeline connector comprises a socket, a spigot and a sealing piece which is arranged between the socket and the spigot and used for sealing and locking the pipeline connector. The socket comprises an annular groove which is formed by sequentially connecting a first annular vertical wall, a conical wall, a cylindrical inner wall and a second annular vertical wall in a defined manner. The sealing piece comprises an elastic material ring and a plurality of anchoring pieces embedded in the elastic material ring. Each anchoring piece comprises a head and a plurality of meshing teeth. Each anchoring piece is provided with a rotating circle center. The portion, connected with the annular groove in an abutting manner, of each head is an arc supporting face. The abutting joint area of each arc supporting face and the annular groove is located on the joint of the first annular vertical wall and the conical wall.
Owner:XINXING DUCTILE IRON PIPES CO LTD

Spacer formation by poly stack dopant profile design

A method for forming a semiconductor device to produce graded doping in the source region and the drain region includes the steps of implanting the gate material, usually a polysilicon, with a dopant ion that varies the level of oxide formation on the gate. The dopant ion is driven into undoped polysilicon. Nitrogen ions, may also be implanted in the polysilicon to contain the previously implanted ions. For N-type transistors, typically arsenic is implanted. For P-type transistors, typically boron is implanted. Gates are formed. The gate structure is then oxidized. The oxidation process is controlled to grow a desired thickness of silicon dioxide on the gate. The portion of the gate carrying the dopant grows silicon dioxide either more quickly or more slowly. An isotropic etch can then used to remove a portion of the silicon oxide and form a knob on each sidewall of the gate. A heavy ion implant is then done to convert a portion of the lightly doped source region into a heavily doped region within the source region, and to convert a portion of the lightly doped drain region into a heavily doped region within the drain region. Some of the implanted ions are stopped by the knobs on the gate sidewalls. The regions under the knobs do not have as deep an ion implantation resulting in a shallow region beneath the knob. This forms a graded junction having a specific geometry. The geometry of the interface between the lightly doped region and the heavily doped region in the source region and the drain region depends on the geometry (thickness) of silicon dioxide knobs formed on the sidewall of the gate.
Owner:CONVERSANT INTPROP MANAGEMENT INC

Method for grafting saving of camellia tree plant with dead overground branches

The invention discloses a method for grafting saving of a camellia tree plant with dead overground branches. The method for grafting saving of the camellia tree plant with the dead overground branches comprises the following steps that a camellia tree of which the overgroud stem is dead due to pest and disease damage or environment factors is selected, the dead stem is cut off and removed with a saw, the underground root portion with the physiological activity is left, a notch is cut to be in a deep V shape along the axis of the root, a branch, with a thickness matched with the thickness of the notch in the root portion, of a precious camellia tree is used as a grafting scion wood, 2-5 twigs can be left on the morphological upper end of the branch, the morphological lower end of the branch grafting scion wood is cut to be in a shape matched with the shape of the notch in the underground root portion, the branch grafting scion wood is inserted into the notch in the underground root portion, the cambium and the phloem of the grafting scion wood are aligned with the cambium and the phloem of the root, sealing treatment is carried out, the grafting condition is checked at regular intervals, a plastic film is taken out of the root portion after two months, and the grafting survival condition and the sprouting condition of the scion wood are checked. According to the method for grafting saving of the camellia tree plant with the dead overground branches, the branch of other camellia trees is used as the scion wood based on the original root portion, and the dying camellia tree can survive with the grafting method.
Owner:云南雷兰生物科技有限公司

Bistable electromagnetic valve

The invention discloses a bistable electromagnetic valve. The bistable electromagnetic valve comprises an air inlet pipe, a valve body and an air outlet pipe; a cylindrical cavity is formed in the valve body, and a fixed annular magnet, a moving assembly and an electromagnet are sequentially arranged in the cylindrical cavity in the direction from the air inlet end to the air outlet end; the moving assembly can move between the fixed annular magnet and the electromagnet in the axial direction of the cylindrical cavity; the moving assembly can seal a valve port under the attraction of the fixed annular magnet, so that the valve is kept in a normally off state; and when the valve is powered on, under attraction of the electromagnet, the moving assembly gets far away from the valve port and is attached to a cylindrical iron core of the electromagnet, the valve is opened, and the structure is a bistable structure. The bistable electromagnetic valve has the advantages that the problems that a traditional electromagnetic valve is low in reliability, large in energy consumption and difficult to miniaturize can be solved, the combination of a mechanical spring and an ejector rod is replaced with a magnetic spring, and therefore the reliability of the electromagnetic valve is improved, and meanwhile the energy consumption and the size of the electromagnetic valve are reduced; and in a micro electronic system, the bistable electromagnetic valve has great application potential.
Owner:ZHEJIANG UNIV

Robot hand claw device capable of automatically hanging and taking piece for spraying production line

The invention belongs to the technical field of automatic production, and particularly relates to a robot hand claw device capable of automatically hanging and taking a piece for a spraying productionline. The device comprises a mounting bottom frame, a plurality of cross-shaped sliding table driving components, electromagnet suction disc mechanisms and light sources and the cameras, wherein theplurality of cross-shaped sliding table driving components are arranged on the mounting bottom frame, the electromagnet suction disc mechanisms are arranged on the cross-shaped sliding table driving components and the light sources and the cameras are arranged corresponding to each electromagnet suction disc mechanism. The electromagnet suction disc mechanisms comprise rotary air cylinders, suction head mounting plates, a plurality of electromagnets suction head assemblies, wherein the suction head mounting plates are arranged on the rotating shafts of the rotary air cylinders, and plurality of electromagnets suction head assemblies are arranged on the suction head mounting plates. The electromagnets suction head assemblies comprise guide columns, holding rings, electromagnets and springs,wherein the guide columns are penetratingly arranged on the suction head mounting plates, the holding rings are fixed on the upper ends of the guide columns, the electromagnets are fixed on the lowerends of the guide columns and the springs sleeve the guide columns. The rotating shaft of each rotary air cylinder is perpendicular to the central axis of each guide column. The robot hand claw device is capable of simultaneously adsorbing multiple products, and suitable for a product with an uneven adsorbed surface and an obliquely-placed product, and meanwhile the probabilities of grabbing failure are small.
Owner:宁波易拓智谱机器人有限公司

Socket-type pipe connection with anchor structure

Disclosed is a socket-spigot pipeline interface having a fastening structure, relating to a socket-spigot interface having a fastening structure for connecting a spherical graphite cast iron pipe. The socket-spigot interface comprises a socket (67), a spigot (66), and a sealing member (65) between the socket (67) and spigot (66) for sealing and fastening the pipeline interface. The socket (67) comprises an annular recess (5) defined by the sequential connection between a first annular vertical wall (1), a conical wall (2), a cylindrical inner wall (3) and a second annular vertical wall (4). The sealing member (65) comprises an elastic material ring (69) and a plurality of fastening members (68) embedded therein. The fastening members (68) comprise head portions (51) and a plurality of meshing teeth (54). The fastening members (68) have centers of rotation (55). A portion at which the head portion (51) and the annular recess (5) mutually contact is an arc-shaped support surface (50). A region at which the arc-shaped support surface (50) and the annular recess (5) contact is disposed at a location at which the first annular vertical wall (1) and the conical wall (2) connect. The socket-spigot interface can improve fastening reliability, extend structure service life, decrease pipeline maintenance costs, and enable easy optimization simulation of an interface structure, increasing pipeline transport capability.
Owner:XINXING DUCTILE IRON PIPES CO LTD

Foundation pit supporting and protecting structure of underground continuous wall and construction method of structure

A foundation pit supporting and protecting structure of an underground continuous wall is composed of wing plates, metal sheet pillars, a concrete diaphragm wall design depth, extended parts, a round hole, drill holes, a unit groove section, protective walls, wood wedges, channel steels, a water-stopping plate and a steel reinforcement cage. The metal sheet pillars are welded by four steel plates into the shape of II, the left sides and the right sides of the metal sheet pillars are respectively provided with two wing plates, and another steel plate is welded at a half-way line position between the two wing plates on one side to serve as the water-stopping plate. The length of the metal sheet pillars is equal to the concrete diaphragm wall design depth plus the length of the extended parts. The two wing plates arranged on the left sides and the right sides of the extended parts are cut, two ends of the bottom of the unit groove section are respectively drilled with holes, and the extended parts of the two metal sheet pillars are respectively arranged into the drill holes and fixed through concrete pouring. Two sides of the unit groove section are the protective walls, the metal sheet pillars and the protective walls are tightly wedged through the wood wedges, small steel pieces arranged at two ends of the two channel steels respectively cover the metal sheet pillars, the steel reinforcement cage is arranged in the unit groove section, the metal sheet pillars and the unit groove section are all poured with concrete to the height of the floor, and after the concrete is solidified, the wood wedges and the channel steels are removed, thereby manufacturing the foundation pit supporting and protecting structure connected underground.
Owner:南京奔腾建设有限公司

Infective built fungicide for damping-off and preparation process thereof

InactiveCN101120677AImprove and protect the growing environmentPrevent Zinc DeficiencyBiocideFungicidesDiseaseBiology
The present invention discloses an infective rhizoctonia disease compound bactericide and a production method of the bactericide, which consists of a bactericide and an acid regulating agent; wherein, the effective compositions of the bactericide consists of the thiram, the metalaxyl, the ziram and a carrier; the acid regulating agent consists of the sulfuric acid and a carrier. The production method of the present invention is to uniformly mix the raw materials such as the thiram, the metalaxyl and the ziram with the carrier to be made into a single-bag product of the bactericide; to spray the sulfuric acid on the carrier and to re-mix to be a carrier containing the acid, thereby producing an acid regulating sing-bag product. Re-mixing the thiram, the metalaxyl and the ziram, the present invention has a favorable combinational toxicity, which can improve and protect the growth environment of the crops and can prevent the occurrence of the zinc deficiency. The compound bactericide is made by the powder acid regulating agent directly mixed with the soil, which is simple and convenient to operate; the effective composition of the compound bactericide can increase the seedling in the tri-leaf period to ten or more; the present invention adopts the coal gangue powder and the rice hull powder as the acid carrier, which has high content of the acid and has a favorable aeration; moreover, the coal gangue powder is an organic substance, which can improve the soil without any pollution. The efficiency for adopting the present invention to prevent the rice infective rhizoctonia disease can reach ninety nine percent or more.
Owner:黑龙江企达农药开发有限公司

Air flue assembly and fresh air unit

PendingCN108361865AEliminate contact gapsIncrease contact preloadEnergy recovery in ventilation and heatingMechanical apparatusFlueProcessing accuracy
The invention relates to an air flue assembly and a fresh air unit. The air flue assembly comprises an air flue, a sealing element (7) arranged in the air flue and made of a flexible material, and a sealing state adjustment part for actively adjusting a state of the sealing element (7) so as to enable the air flue to close when the sealing element (7) is in contact seal with a side wall of the airflue and enable the air flue to open when the sealing element (7) is not in seal with the side wall of the air flue. According to the air flue assembly and the fresh air unit provided by the invention, the flexible sealing element is adopted and can tightly fit to a sealing surface under the control of the sealing state adjustment part, and the flexible sealing element can eliminate a contact gapthrough self-deformation, so that a contact pre-tightening force is increased, and a sealing effect is optimized. In addition, a sealing structure is more reliable compared with an air valve structure, and cannot be invalided easily after long-time use. In addition, the air flue assembly can further adapt to various conditions such as planes and irregular surfaces, is higher in adaptability, andcan be beneficial to reducing the requirement on the processing precision on the side wall of the air flue.
Owner:GREE ELECTRIC APPLIANCES INC
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