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34results about How to "Increase land area" patented technology

Recessed-gate transistor device having a dielectric layer with multi thicknesses and method of making the same

A recessed-gate transistor device includes a gate electrode embedded in a gate trench formed in a semiconductor substrate, wherein the gate trench includes a vertical sidewall and a U-shaped bottom. A source region is provided at one side of the gate trench within the semiconductor substrate. A drain region is provided at the other side thereof. An asymmetric gate dielectric layer is formed between the gate electrode and the semiconductor substrate. The asymmetric gate dielectric layer has a first thickness between the gate electrode and the drain region and a second thickness between the gate electrode and the source region, wherein the first thickness is thicker than the second thickness.
Owner:NAN YA TECH

High-position driftage water canal

The invention provides a high-level drift water channel system, relating to an above-water slideway, in particular to a high-level drift water channel system used for sports or leisure. The high-level drift water channel system is provided with a water guide channel device, a cockboat, at least a water pump spraying device and an above-water platform device; the water guide channel device is provided with a water guide channel and a vertical column; the cockboat is provided with a wheel and a spraying push-force device; the cockboat is arranged in the water guide channel; the water pump spraying device is provided with a water accumulation channel, a water pump, a pipeline, a nozzle or a water outlet; the water accumulation channel is connected with a water channel; the water pump is connected with the water accumulation channel; the water pump is connected with the nozzle or the water outlet on the water guide channel by the pipeline; one water pump spraying device is provided with at least one nozzle or water outlet; the above-water platform is arranged on the water surface and is used for fixedly supporting the vertical column of the water guide channel; and the above-water platform device is provided with a floating body, a platform, a pile column and a lifting power mechanism.
Owner:陆健

Recessed-gate transistor device having a dielectric layer with multi thicknesses and method of making the same

A recessed-gate transistor device includes a gate electrode embedded in a gate trench formed in a semiconductor substrate, wherein the gate trench includes a vertical sidewall and a U-shaped bottom. A source region is provided at one side of the gate trench within the semiconductor substrate. A drain region is provided at the other side thereof. An asymmetric gate dielectric layer is formed between the gate electrode and the semiconductor substrate. The asymmetric gate dielectric layer has a first thickness between the gate electrode and the drain region and a second thickness between the gate electrode and the source region, wherein the first thickness is thicker than the second thickness.
Owner:NAN YA TECH

Structure and construction method of muddy coast sheet pile wharf

The invention discloses a structure and a construction method of a muddy coast sheet pile wharf. The wharf is formed by combining a temporary causeway, a front sheet pile wall, a rear anchoring wall, an anchoring pull rod and a reinforcing soil body between the front sheet pile wall and the rear anchoring wall, wherein the temporary causeway is arranged on a muddy foundation, the front sheet pile wall and the rear anchoring wall penetrate through a dike body and a sludge layer to enter into a soil layer with high bearing capacity; a track pile foundation is piled; reinforcing the sludge between the front sheet pile wall and the rear anchoring wall by virtue of a cement mixing pile; throwing and filling rock mound behind the front sheet pile wall and the rock mound in front of the rear achoring wall; and connecting the front sheet pile wall with the rear anchoring wall by virtue of the anchoring pull rod, and finally combining the integral sheet pile structure. The sheet pile wharf constructed by the invention can be directly applied to the muddy foundation.
Owner:CCCC THIRD HARBOR CONSULTANTS

Method for optimizing topography and geomorphology of dump in large opencast coal mine in loess area

The present invention relates to a method for optimizing the topography and the geomorphology of a dump in a large opencast coal mine in the loess area. The method comprises: "soft base removal", "base gully filling", "smooth base blasting treatment", "base piling for skid resistance", "fan-shaped disposal and layered compaction", and other steps. According to the method provided by the present invention, based on the simulation of the original "plateau" geomorphology millions years ago in the loess plateau, the artificial landmine terraces mode of the traditional sloping land in the water and soil erosion area in the Loess Plateau are changed; and relying on the convenient conditions of the mining and moving soil, the large-scale earthwork is used to deploy and form the basin geomorphology to co-ordinate the hydrological topography, and micro-topography modification is used to reduce the generation of the surface runoff, so that under the premise of ensuring the stability of the dump, the geomorphology of the dump in the large opencast coal mine in the loess area is restored to the "plateau" geomorphology, and the foundation is provided for the restoration of ecosystems and biological diversity.
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING)

Wharf structure suitable for silt coast and construction method of wharf structure

The invention discloses a wharf structure suitable for a silt coast. A direction which is close to the sea is used as a front direction, and a direction which is relatively away from the sea is used as a rear direction. The wharf structure comprises a causeway, a front diaphragm wall, a rear diaphragm wall, a partition, a plurality of coupling beams and a wharf upper part structure, wherein the front diaphragm wall, the rear diaphragm wall and the partition form a cylindrical caisson structure; the coupling beams are connected with the rear diaphragm wall and a pile foundation; and the wharf upper part structure covers the front diaphragm wall, the rear diaphragm wall, the partition and the pile foundation. By the structure, construction difficulty and engineering investment costs are reduced effectively. A construction method comprises the following steps: (1) constructing the causeway by bagged sand quilts; (2) reinforcing the causeway and silt filled at the rear of the causeway in a blowing manner, reinforcing new silt filled in the blowing manner, and constructing the front diaphragm wall, the rear diaphragm wall and the partition to form the cylindrical caisson structure when the bearing capacity of foundation soil reaches 5 tons at least; (3) excavating causeway remaining earthwork in front of the front diaphragm wall and earthwork under a natural silt surface, and enabling the front edge of a wharf to reach designed water depth; and (4) constructing the pile foundation and the coupling beams, and then constructing the wharf upper part structure. The construction method is simple.
Owner:CCCC THIRD HARBOR CONSULTANTS

Semiconductor structure

A semiconductor structure is disclosed. The semiconductor structure includes a substrate, and an interlayer dielectric disposed on the substrate which has agate structure therein. The gate structure further includes a gate electrode with a protruding portion, and a gate dielectric layer disposed between the gate electrode and the substrate. A spacer is disposed between the interlayer dielectric and the gate electrode. An insulating cap layer is disposed atop the gate electrode and encompasses the top and the sidewall of the protruding portion.
Owner:UNITED MICROELECTRONICS CORP

Rice tiller retaining and ear increasing high-yield fertilizer applying technology

ActiveCN105875001AMeet the needs of fertilizerLow deflation rateFertilising methodsHectareHigh yielding
The invention relates to the field of agricultural cultivation, and discloses a rice tiller retaining and ear increasing high-yield fertilizer applying technology. The fertilizer applying technology includes the steps that according to the total fertilize applying amount of nitrogen fertilizer of 140-185 kilograms / hectare metered according to pure nitrogen, phosphatic fertilizer of 60-90 kilograms / hectare metered according to P2O5 and potash fertilizer of 70-120 kilograms / hectare metered according to K2O, and the fertilizer is applied in four fertilizer applying stages; base fertilizer is applied before plowing or harrowing; striking root fertilizer is applied 3-10 days after rice transplanting; tillering fertilizer is applied 43-55 days before rice earing; tiller retaining and ear increasing fertilizer is applied 35-45 days before rice earing; later earing fertilizer is not applied. A traditional fertilizer applying method of applying earing fertilizer originally is changed, earing fertilizer is not applied any more, a brand-new fertilizer applying stage namely the stage of applying the tiller retaining and ear increasing fertilizer is added in the 10-15 day rice growth stage before applying the earing fertilizer originally, fertilizer application ratio of other fertilizer application stages is adjusted, a normalized and standardized fertilizer application concept is provided, and high and stable yield of rice is achieved.
Owner:吉林省宏科稻业有限公司

Method of quick propagating and cultivating plant half-bud or whole-leaf

The invention discloses a culturing method of plant half bud or one leaf quick breeding, which comprises the following steps: adopting half tender bud or one leaf of current year woody plant of half lignifications; or adopting herb tender stem with leaf as plug-in ear; treating with sterilizing liquid and rooting powder; cutting into slotter; spraying one time permeable immediately; entering into automatic control spraying management; spraying sterilizing liquid at following day morning or night; avoiding infection; interval-spraying sterilizing liquid; spraying phosphate fertilizer after rooting; accelerating lignifications of root system; getting reviving strain through 4-11 days. This invention does not need seed and grafting, which increases breeding rate and decreases breeding cost.
Owner:河南红枫生物高科股份有限公司

Rotation type multi-storey garage

The invention relates to rotating type stereo garage. It includes unit loading turn table, electric machine drive mechanism, and electric machine start-stop control device. The structure of the turn table is that three moment tube great circular rings are set at one axis with the same distance; each of the great circular rings is set many moment tube circular rings; adjoining circular rings are tangential; their gap is welded rib plate; the center of a circle ring is welded center rib plate; draw bar is set on the corresponding rib plate; the axis of the turning table is set on the center rib plate. The unit vehicle position is that the three moment tube circular rings are a flat car; the flat car is set caster; the caster is connected to the circular ring. Its advantages are little earth occupying, high utilization ratio, simple structure, and low cost.
Owner:唐西林 +1

Parasitic power generation unit of photovoltaic power station and power generation method

The invention relates to a parasitic power generation unit of a photovoltaic power station and a power generation method. The power generation unit comprises a folding wing support attached to a main body support, the top of the main body support is provided with a photovoltaic assembly plate, and the folding wing support comprises a connection beam fixedly connected with parallel beams in the same direction in the main body support. A rotating shaft support is arranged at the end, away from the main body support, of the connection beam, a rotating shaft is arranged in the rotating shaft support, a light irradiation receiving plate is fixed to the rotating shaft, and the rotating shaft and the light irradiation receiving plate are driven by a rotating driving mechanism to rotate. When the light irradiation receiving plate rotates to be flush with the photovoltaic assembly plate or form a certain angle with the photovoltaic assembly plate, power generation is carried out to make unavailable light energy converted into available energy, so that the installed capacity of a photovoltaic power station can be greatly increased under the condition that the land area is not increased or slightly increased; and when the light irradiation receiving plate rotates to the position under the photovoltaic module plate, the light irradiation receiving plate is folded for wind sheltering, so that strong wind weather can be avoided in real time, and a wind sheltering state can be quickly entered.
Owner:丁慈鑫 +2

High attitude stereo planting device and planting method

The invention relates to the field of planting, in particular to a high attitude stereo planting device and planting method. The device comprises a vertical bracket which is fixed to the ground and a multilayer planting platform which is movably connected with the vertical bracket, wherein the planting platform is perpendicular to the bracket, and a plurality of planting modules are arranged on the planting platform. The planting method comprises the steps that cultivation substrates are paved on the planting modules, sciophiles are planted in the planting modules of the bottom layer of the planting platform, and heliophiles are planted in the planting modules of the top layer of the planting platform. The high attitude stereo planting device can built in different landforms, the planting area can be increased effectively, in addition, due to the fact that high attitude stereo planting is not needed to be in contact with surface soil, plants can also be planted on the contaminated area of land, and the land use rate can be increased effectively. The planting platform is movably connected with the bracket, when the device is used, the distances between all layers of the planting platform can be adjusted according to requirements, and the growing space of the plants can be guaranteed. By adopting the planting method, the habits of all kinds of crops can be taken into account, and the overall production of the crops can be increased.
Owner:张伟君

Semiconductor package structure and manufacturing method thereof

A semiconductor package structure includes a first redistribution layer, a plurality of conductive connectors, a chip, and an encapsulant. The first redistribution layer has a first surface and a second surface opposite to the first surface. The first redistribution layer includes at least one conductive pattern and at least one dielectric layer stacked on each other. The conductive pattern includes a plurality of landing pads, and each of the landing pads is separated from the dielectric layer. The conductive connectors are located on the first surface. Each of the conductive connectors is corresponding to and electrically connected to one of the landing pads. The chip is located on the first surface. The chip is electrically connected to the first redistribution layer. The encapsulant encapsulates the chip and the conductive connectors. A manufacturing method of a semiconductor package structure is also provided.
Owner:POWERTECH TECHNOLOGY

Semiconductor device with composite landing pad for metal plug

The present disclosure relates to a semiconductor device with a composite landing pad. The semiconductor device includes a first dielectric layer disposed over a semiconductor substrate. The semiconductor device also includes a lower metal plug and a barrier layer disposed in the first dielectric layer. The lower metal plug is surrounded by the barrier layer. The semiconductor device further includes an inner silicide portion disposed over the lower metal plug, and an outer silicide portion disposed over the barrier layer. A topmost surface of the outer silicide portion is higher than a topmost surface of the inner silicide portion.
Owner:NAN YA TECH

Semiconductor device with composite landing pad for metal plug

The present disclosure relates to a semiconductor device with a composite landing pad. The semiconductor device includes a first dielectric layer disposed over a semiconductor substrate. The semiconductor device also includes a lower metal plug and a barrier layer disposed in the first dielectric layer. The lower metal plug is surrounded by the barrier layer. The semiconductor device further includes an inner silicide portion disposed over the lower metal plug, and an outer silicide portion disposed over the barrier layer. A topmost surface of the outer silicide portion is higher than a topmost surface of the inner silicide portion.
Owner:NAN YA TECH

Gyrotron collector

The invention provides a gyrotron collector. The gyrotron collector comprises a transition section, a cylinder section which is connected with the transition section in a sealing manner, and a top cover which is connected on the rear side of the cylinder section in a sealing manner. An inner side of the top cover is provided with a bulge toward the cylinder section. The gyrotron collector can effectively intercept and capture abnormal clutter electrons generated by influence of space charge forces among electron beams and disturbance of a high-frequency electromagnetic field excited by the electron beams, and controls the mussy abnormal electrons in an effective region, preventing appearance of uncontrollable air leaking points, and improving work stability of high power gyrotrons.
Owner:INST OF ELECTRONICS CHINESE ACAD OF SCI

Underground flowing type curing kiln system for precast concrete parts

The invention discloses an underground flowing type curing kiln system for precast concrete parts. The underground flowing type curing kiln system comprises part storing devices and an underground curing kiln. The underground curing kiln comprises multiple curing units arranged in M rows and multiple curing units arranged in N columns. Each curing unit comprises multiple layers of curing stationswhich are independent. At least two part storing devices are arranged and are arranged at the inlet end and the outlet end of the underground curing kiln. The underground flowing type curing kiln system has the beneficial effects that the curing stations are arranged under the ground, so that no working blind area exits in a ground assembly line, the plane area of the precast concrete part production assembly line is sufficiently saved, and the yield of the unit land area of the assembly line is increased; and meanwhile, due to transverse moving driving modules and horizontal moving rollers corresponding to the curing stations, the concrete parts in the curing kiln can conduct flowing type curing work in the direction of the assembly line or in other specific directions, and the requirement for concrete part water flow type production is met.
Owner:CHINA CONSTR TECH WUHAN CO LTD

Stereoscopic agriculture production method

The invention relates to a stereoscopic agriculture production method. The method comprises the steps that firstly, a structure is constructed manually on the ground, and the structure is at least provided with two side walls and a top supported by the two side walls; secondly, culture media such as soil are paved at the top to form an artificial land; and thirdly, agriculture production suitable for environments of the interior of the structure and the artificial land is conducted in the structure and on the artificial land. The stereoscopic agriculture production method has the following advantages that firstly, land occupation is reduced, and the utilization rate of the land is increased; secondly, ecological utilization of a production system is more comprehensive and more sufficient; thirdly, the investment is low while the benefits are high; fourthly, the energy saving effect is remarkable; fifthly, emission of carbon dioxide generated in the structure to the outside is reduced, and the application amount of materials, such as black plastic films, for building a sunshading environment necessary for mushroom production is reduced; and sixthly, agriculture production in the structure is prevented from being severely influenced by terrible weather such as violent storms, hail, frost, scorching sun and high temperatures.
Owner:重庆天地秀色农业技术开发有限公司

Shallow-water three-dimensional multi-layer intensive high-density aquaculture system

The invention provides a shallow-water three-dimensional multi-layer intensive high-density aquaculture system which comprises multiple layers of shallow-water aquaculture tanks arranged up and down, a water injection pipeline, double-layer drainage pipes and water treatment integrated equipment, wherein the water injection pipeline is arranged above the shallow-water aquaculture tank on the uppermost layer and used for controlling the water injection amount; a water inlet and a water outlet of each layer of shallow-water aquaculture tank are located in the diagonal direction of the aquaculture tank, and one double-layer drainage pipe is arranged in each layer of shallow-water aquaculture tank; and the lowest layer of shallow-water aquaculture tank is connected with the water treatment integrated equipment, and the water treatment integrated equipment is used for purifying sewage discharged from the upper part. By adopting a self-circulation drainage mode from top to bottom, combining devices such as the double-layer drainage pipes, an unpowered dissolved oxygen supercharger and a residue separator and cooperating with water treatment integrated equipment, the water dissolved oxygen amount can be increased, the water quality can be improved, diseases can be reduced, effects of no emission, no pollution, no chemical and no antibiotic can be achieved, and the formed product is green, safe, ecological and environmentally friendly.
Owner:北京艾克福克斯生态科技有限公司

Fertilizer Techniques for Keeping Tillers, Increasing Ears and High Yield of Rice

ActiveCN105875001BMeet the needs of fertilizerLow deflation rateFertilising methodsEaringHectare
The invention relates to the field of agricultural cultivation, and discloses a rice tiller retaining and ear increasing high-yield fertilizer applying technology. The fertilizer applying technology includes the steps that according to the total fertilize applying amount of nitrogen fertilizer of 140-185 kilograms / hectare metered according to pure nitrogen, phosphatic fertilizer of 60-90 kilograms / hectare metered according to P2O5 and potash fertilizer of 70-120 kilograms / hectare metered according to K2O, and the fertilizer is applied in four fertilizer applying stages; base fertilizer is applied before plowing or harrowing; striking root fertilizer is applied 3-10 days after rice transplanting; tillering fertilizer is applied 43-55 days before rice earing; tiller retaining and ear increasing fertilizer is applied 35-45 days before rice earing; later earing fertilizer is not applied. A traditional fertilizer applying method of applying earing fertilizer originally is changed, earing fertilizer is not applied any more, a brand-new fertilizer applying stage namely the stage of applying the tiller retaining and ear increasing fertilizer is added in the 10-15 day rice growth stage before applying the earing fertilizer originally, fertilizer application ratio of other fertilizer application stages is adjusted, a normalized and standardized fertilizer application concept is provided, and high and stable yield of rice is achieved.
Owner:吉林省宏科稻业有限公司

Recyclable and deformable launching nacelle

ActiveCN112623179ARealize floating flight suspensionRealize airborne launchRigid airshipsNacelleFlight vehicle
The invention belongs to the technical field of nacelle equipment, and provides a recyclable and deformable launching nacelle based on the defects of an existing aerostat nacelle. A hanging aircraft is hung on a lifting hook of an electrical load cabin, and a shape follow-up fixing frame is fixed to the bottom of the electrical load cabin through a center fixing frame and two side fixing frames. The hanging aircraft is arranged in a shape follow-up supporting hole of the shape follow-up fixing frame, the synchronous shock absorber is installed at the corresponding position of the bottom of the electrical load cabin, the rope driving system is installed in the electrical load cabin, and four steel wire ropes of the rope driving system are guided into the synchronous shock absorber through a plurality of sets of fixed pulleys and fixed to the corresponding positions of the bottom frame, and four steel wire ropes are used for winding and unwinding. The nacelle can realize integration of functions such as floating flight hanging, near-air launching and launching, safe buffer landing, invisible shielding and repeatable multi-time recycling and launching by utilizing deformation of the aircraft body. And meanwhile, the plurality of buffers can realize synchronous buffering.
Owner:INST OF MECHANICS - CHINESE ACAD OF SCI

Method of quick propagating and cultivating plant half-bud or whole-leaf

The invention discloses a culturing method of plant half bud or one leaf quick breeding, which comprises the following steps: adopting half tender bud or one leaf of current year woody plant of half lignifications; or adopting herb tender stem with leaf as plug-in ear; treating with sterilizing liquid and rooting powder; cutting into slotter; spraying one time permeable immediately; entering intoautomatic control spraying management; spraying sterilizing liquid at following day morning or night; avoiding infection; interval-spraying sterilizing liquid; spraying phosphate fertilizer after rooting; accelerating lignifications of root system; getting reviving strain through 4-11 days. This invention does not need seed and grafting, which increases breeding rate and decreases breeding cost.
Owner:河南红枫生物高科股份有限公司

A Topography and Geomorphology Optimization Method for Large-Scale Open-pit Coal Mine Dump Site in Loess Area

The present invention relates to a method for optimizing the topography and the geomorphology of a dump in a large opencast coal mine in the loess area. The method comprises: "soft base removal", "base gully filling", "smooth base blasting treatment", "base piling for skid resistance", "fan-shaped disposal and layered compaction", and other steps. According to the method provided by the present invention, based on the simulation of the original "plateau" geomorphology millions years ago in the loess plateau, the artificial landmine terraces mode of the traditional sloping land in the water and soil erosion area in the Loess Plateau are changed; and relying on the convenient conditions of the mining and moving soil, the large-scale earthwork is used to deploy and form the basin geomorphology to co-ordinate the hydrological topography, and micro-topography modification is used to reduce the generation of the surface runoff, so that under the premise of ensuring the stability of the dump, the geomorphology of the dump in the large opencast coal mine in the loess area is restored to the "plateau" geomorphology, and the foundation is provided for the restoration of ecosystems and biological diversity.
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING)

A wharf structure suitable for muddy coast and its construction method

The invention discloses a wharf structure suitable for a silt coast. A direction which is close to the sea is used as a front direction, and a direction which is relatively away from the sea is used as a rear direction. The wharf structure comprises a causeway, a front diaphragm wall, a rear diaphragm wall, a partition, a plurality of coupling beams and a wharf upper part structure, wherein the front diaphragm wall, the rear diaphragm wall and the partition form a cylindrical caisson structure; the coupling beams are connected with the rear diaphragm wall and a pile foundation; and the wharf upper part structure covers the front diaphragm wall, the rear diaphragm wall, the partition and the pile foundation. By the structure, construction difficulty and engineering investment costs are reduced effectively. A construction method comprises the following steps: (1) constructing the causeway by bagged sand quilts; (2) reinforcing the causeway and silt filled at the rear of the causeway in a blowing manner, reinforcing new silt filled in the blowing manner, and constructing the front diaphragm wall, the rear diaphragm wall and the partition to form the cylindrical caisson structure when the bearing capacity of foundation soil reaches 5 tons at least; (3) excavating causeway remaining earthwork in front of the front diaphragm wall and earthwork under a natural silt surface, and enabling the front edge of a wharf to reach designed water depth; and (4) constructing the pile foundation and the coupling beams, and then constructing the wharf upper part structure. The construction method is simple.
Owner:CCCC THIRD HARBOR CONSULTANTS

Flue gas desulfurization gypsum for mariculture and preparation method thereof

The invention relates to the technical field of mariculture, in particular to flue gas desulfurization gypsum for the mariculture and a preparation method thereof. The flue gas desulfurization gypsum for the mariculture is prepared from, by weight, 1-3 parts of microbial enzymes, 5-8 parts of sepiolite, 7-12 parts of feed grade zeolite powder, 9-11 parts of rice husks, 0.5-1.5 parts of biological bacterium fluid, 75-84 parts of flue gas desulfurization gypsum, 0.8-1.6 parts of lactobacillus acidophilus and 0.6-2 parts of photosynthetic bacteria. According to the flue gas desulfurization gypsum for the mariculture and the preparation method thereof, the microbial enzymes, sepiolite, feed grade zeolite powder, rice husks, biological bacterium fluid and flue gas desulfurization gypsum serve as the main ingredients to be prepared into the flue gas desulfurization gypsum for the mariculture, and by means of the sepiolite, feed grade zeolite powder and rice husks contained in the flue gas desulfurization gypsum for the mariculture, the improved flue gas desulfurization gypsum can improve magnesium chloride and sodium chloride in seawater to meet the requirements of the mariculture; the preparation method of the flue gas desulfurization gypsum for the mariculture is simple, and the raw material cost and production cost are low.
Owner:SHANDONG SUNWAY LANDSCAPE TECH

Unmanned aerial vehicle water forced landing transportation device

PendingCN112918628ASolve the unstable random shake problemPrevent fallingVessels for aircraftMarine engineeringGear wheel
The invention discloses an unmanned aerial vehicle water forced landing transportation device, and belongs to the technical field of unmanned aerial vehicle forced landing. The unmanned aerial vehicle forced landing transportation device comprises a shell, a motor is arranged in the shell, an output shaft of the motor is connected with a water pumping mechanism, a screw rod is arranged above the water pumping mechanism, the thread turning directions of the left end and the right end of the screw rod are opposite, the two ends of the screw rod are in threaded connection with push boxes, and the push boxes and the shell are fixedly connected with springs. A transmission shaft A is arranged in front of the screw rod, the left side of the transmission shaft A is sleeved with a front cover plate, the rear side of the front cover plate abuts against a rear cover plate, and the rear cover plate is connected with a transmission shaft B through sleeving. Front and rear cover plates can be overturned through gear transmission, the landing area of the device is enlarged, and the unmanned aerial vehicle is prevented from being out of control and falling into water due to difficulty in landing to the center of the transportation device. By arranging a water bag, the water bag is used for buffering impact force generated when the unmanned aerial vehicle lands, and the unmanned aerial vehicle is prevented from being damaged by the impact force.
Owner:童友福

Method for preparing semiconductor device with composite landing pad

The present disclosure relates to method for preparing a semiconductor device with a composite landing pad. The method includes forming a first dielectric layer over a semiconductor substrate. The semiconductor device also includes forming a lower metal plug and a barrier layer in the first dielectric layer. The lower metal plug is surrounded by the barrier layer. The semiconductor device further includes forming an inner silicide portion over the lower metal plug, and an outer silicide portion over the barrier layer. A topmost surface of the outer silicide portion is higher than a topmost surface of the inner silicide portion.
Owner:NAN YA TECH
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