13results about How to "No misalignment" patented technology

The disclosure discloses a preparation method of a light emitting diode chip, and belongs to the technical field of semiconductors. The preparation method comprises the following steps: growing an epitaxial layer; sequentially depositing a transparent conductive layer and an etching stop layer on one side of the epitaxial layer; patterning the transparent conductive layer and the etching stop layer to expose part of the epitaxial layer; preparing a photoresist layer on the side of the etching stop layer away from the transparent conductive layer, so that the photoresist layer covers part of the etching stop layer; and etching the exposed transparent conductive layer, etching stop layer and epitaxial layer to form a mesa and an isolation trench. The embodiment of the disclosure can simplify the etching process and reduce the process cost.

The invention relates to a vertically stacked red, green and blue full-color carrier chip for a microLED display panel. The vertically stacked red, green and blue full-color carrier chip comprises a temporary wafer; and a plurality of LED stacks arranged on the temporary wafer, each of the plurality of LED stacks including a light emitting portion stacked in a vertical direction by a bonding layer, the plurality of LED stacks forming a short channel in a partial region, and emitting only a specific color by current to the light emitting portion where the short channel is not formed, the short channels include a first short channel formed so as to correspond to the width of the light-emitting part, and a second short channel formed so as to penetrate through the light-emitting part.

The present invention relates to a vertically stacked micro display panel, comprising: a back wafer having a plurality of CMOS electrode pads arranged on the upper surface thereof; a plurality of LED stacks each including a light emitting portion stacked in a vertical direction by a bonding layer, the plurality of LED stacks being arranged on the plurality of CMOS electrode pads; and a common electrode formed on the plurality of LED stacks, each of the plurality of LED stacks forming a short channel in a partial region, the short channel including a first short channel formed so as to correspond to the width of the light-emitting section, the first short channel including a second short channel formed so as to correspond to the width of the light-emitting section, the second short channel including a second short channel formed so as to correspond to the width of the light-emitting section, and the first short channel including a second short channel formed so as to correspond to the width of the light-emitting section, and the second short channel including a third short channel formed so as to correspond to the width of the light-emitting section. And a second short channel formed so as to pass through the light-emitting unit. According to the present invention, there is an effect of facilitating the formation of a short channel in a vertically stacked serial connection (tandem) structure.

The utility model belongs to the butt joint technical field of pipe pile, concretely is a kind of pre-stressed pipe pile accurate butt joint and weld joint control frock, including the upper guide hoop and lower guide hoop of up-down concentric distribution, the upper guide hoop and lower guide hoop all include two arc hoops, and one side end between one of two arc hoops is rotatably connected, and the other one side end between two arc hoops is connected by fastener, and in the up-down direction between two arc hoops on the same side is connected by connecting piece connection.The utility model can guarantee that pipe pile joint is straight, and deformation is avoided, the quality of jointing is improved, the deformation of weld joint is avoided by constraint force, the effect of stable and control weld joint is reached, at the same time, the heat dissipation area is increased, so that weld joint can be more quickly and naturally heat dissipated, and weld crack caused by cooling shrinkage stress is prevented.

The utility model discloses a front sub -frame of convenient assembly swing arm relates to the field of automotive parts. The front sub -frame of convenient assembly swing arm, including frame main part and swing arm main part, frame U type open file and frame closed cavity are provided with in frame main part side, one end of swing arm main part is provided with swing arm closed cavity, just swing arm U type open file is provided with in the other end of swing arm main part. The front sub -frame of convenient assembly swing arm, has broken the design concept of traditional front sub -frame and swing arm same direction assembly, has designed the assembly structure of positive and negative collocation innovatively, in the assembly process, when swing arm closed cavity of swing arm main part front point is embedded into frame U type open file of frame main part, utilizes swing arm U type open file of swing arm main part back point and the virtual positioning that forms with frame closed cavity of frame main part, and the design of virtual positioning makes swing arm main part front and back point not to occur misplacement in the assembly process, has reduced the assembly difficulty.

The application relates to a method for generating a multi-stage slope of earthwork of a building model, which comprises the following steps: acquiring a bottom contour line of an earthwork entity and multi-stage slope data corresponding to each side, determining the outward expansion distance of each side at different heights based on the multi-stage slope data, for any target side, if there is a slope at a certain height on the other side except the target side, the outward expansion distance of the target side at the height is calculated through linear interpolation, the bottom contour line is outwardly expanded layer by layer according to the outward expansion distance corresponding to each height, a plurality of planar contours at different heights are obtained, a slope surface corresponding to each side is generated based on the planar contours of adjacent heights, and the intersecting surfaces in the slope surface are cut to obtain a complete earthwork slope model. Through the application, the problem of topological error under different numbers of steps is solved, the outward expansion values of different slope sides at the same height are supplemented through linear interpolation, self-intersection is eliminated, and surface cutting is performed, so that the slope surfaces are continuously connected, without gaps and misplacement.

The application relates to the explosive pressing technical field and discloses a uniform-pressure skin bag hydraulic machine. The uniform-pressure skin bag hydraulic machine comprises a rack, a hydraulic system and a skin bag liquid-filling pressure increasing system, the lower surface of the rack is fixedly connected with a workbench base plate, the upper surface of the workbench base plate is fixedly connected with a mold, the skin bag liquid-filling pressure increasing system comprises a displacement sensor, a skin bag body, a rubber pad, an upper push rod and a punch, the inside of the rack is slidably connected with a sliding block, the sliding block is located below a main oil cylinder, the inside of the sliding block is provided with the displacement sensor, the side surface of the sliding block is provided with the rubber pad, the upper surface of the rubber pad is provided with the skin bag body, the upper surface of the skin bag body is provided with a skin bag oil inlet, the lower surface of the rubber pad is provided with the upper push rod, the end, away from the rubber, of the upper push rod is movably connected with the punch, the sliding block-embedded skin bag and the outer-wrapped rubber pad structure can reduce the stress of the skin bag and prolong the service life of the skin bag.

The application provides a focusing system and a focusing method. The focusing system comprises a multi-channel illumination unit, a projection grating mask, a light splitting prism, an imaging lens, a light splitting plate, a microscope objective, a detection grating mask, a converging lens, a detector and an object table for carrying a sample to be measured, and further comprises a displacement driving device. The focusing system comprises first, second and third optical axes. The first and third optical axes are parallel, and the first and second optical axes are perpendicular. The first optical axis is a common central axis of the sequentially arranged multi-channel illumination unit, the projection grating mask and the light splitting prism. The second optical axis is a common central axis of the sequentially arranged light splitting plate, the imaging lens, the light splitting prism, the detection grating mask, the converging lens and the detector. The third optical axis is a common central axis of the sequentially arranged light splitting plate and the microscope objective. The displacement driving device is used for adjusting the axial relative position of the imaging lens on the second optical axis. The application reduces the defocus signal detection error and improves the imaging clarity.

The utility model discloses a switching type water spraying assembly, which is arranged on the side wall of a ceramic basin, is used for switching a water outlet function, and is characterized by comprising a water outlet body and a switching mechanism, the water outlet body covers the side wall of the ceramic basin; the water outlet body is provided with at least two water spraying cavities, and the two water spraying cavities extend in the length direction of the water outlet body and are distributed up and down in parallel; the switching mechanism is arranged between the water outlet body and the side wall of the ceramic pot, the switching mechanism comprises a water guide piece arranged on the water outlet body and a water inlet piece arranged on the mounting hole in the side wall of the ceramic pot, the water guide piece is provided with two water guide ports corresponding to the two water spraying cavities, and the water guide piece is in sliding connection with the water inlet piece; according to the technical scheme, the water spraying device is simple in structure and convenient to manufacture, the mode that an existing water spraying device adopts a plurality of control switches to switch the water outlet function is abandoned, and the problems that the existing water spraying device is unstable in function and poor in use experience feeling are solved.

The utility model discloses a kind of welding support devices for pipe fitting integrated connection, including bottom frame, bottom bar one and bottom bar two are slidably and interval arranged in one side of the bottom frame, end bar is symmetrically arranged in the other end of bottom bar two and bottom frame, support bar two and support bar one are symmetrically arranged in the other side of bottom bar one and bottom frame, cone wheel is rotatably arranged on support bar two, roller is rotatably arranged on support bar one, the opposite side of end bar top is symmetrically connected with cross bar, outer support plate is sleeved on the cross bar, and a plurality of supporting members are evenly connected in the inner end of cross bar;With simple structure, reasonable in design, novel and unique in thought, support a pipe fitting by fixed cross bar's outer support plate and supporting member, and cooperate with movable cross bar's outer support plate and supporting member to support another pipe fitting, another pipe fitting is displaced under the support of supporting member and outer support plate by the displacement of bottom bar one and bottom bar two, and is butt-jointed with a pipe fitting, and is butt-jointed with two pipe fittings for facilitating welding.

The utility model discloses a natural gas pipeline's anti -explosion anti -leakage safety device belongs to pipeline safety technical field, and it includes seal cover no.

This invention relates to the field of cake base conveying technology and discloses a cake base conveying line, including a base frame with a U-shaped structure. Multiple parallel and spaced horizontal plates are arranged on the upper surface of the base frame for placing the cake base. The line also includes a material conveying mechanism and a coating mechanism. The material conveying mechanism includes a lifting block disposed between two adjacent horizontal plates and a lifting assembly disposed on the side of the base frame closest to the ground. The coating mechanism includes a top frame disposed above the base frame, with a brush head in the center of the top frame. The bristles of the brush head face the base frame. When the cake base moves upward with the lifting block to a higher position, the cake base contacts the brush head. This invention, by having the brush head only contact the coating roller to pick up egg wash when the cake base rises to a higher position, fundamentally cuts off the continuous supply of egg wash, completely solving the problem of excess egg wash accumulating on the brush head and dripping and contaminating the conveying line and the products below in traditional devices.