Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

33results about How to "Not prone to voids" patented technology

Die taking and die bonding device and die bonding machine employing same

The invention discloses a die taking and die bonding device. A die bonding table moves along an X direction and a Y direction, a planar jig seat is embedded onto the die bonding table and is flush with the die bonding table, a heating device is connected with the planar jig seat, a rotation arm is provided with a welding head, the welding head is used for die taking and die bonding, a substrate is arranged above the die bonding table and does feeding motion relative to the die bonding table along the X direction, a first driving device is used for driving the rotation arm to do circumferential rotation, a wafer table is used for fixing a wafer, and a wafer table driving device is used for driving the wafer table to move along the X direction and the Y direction and driving the wafer table to rotate around a rotation shaft. The die taking and die bonding device has the beneficial effects that the planar jig seat is arranged, the substrate is heated within a certain range, the temperature is stably controlled, and a hole phenomenon is difficult to generate during chip assembly; and during die bonding, a force between the welding head and the substrate is concentrated on the planar jig seat, the requirement on integral smoothness of the die bonding table is greatly reduced, the parallelism of the welding head and the substrate arranged at a chip assembly position is improved, and the surface-mount smoothness of a semiconductor device is ensured.
Owner:SUZHOU ACCURACY ASSEMBLY AUTOMATION CO LTD

Splicing device of building curtain wall aluminum plate and splicing method thereof

The invention discloses a splicing device of a building curtain wall aluminum plate and a splicing method thereof, and belongs to the field of curtain wall splicing devices. The splicing device of thebuilding curtain wall aluminum plate comprises a shaft barrel, two pairs of extension plates are fixed to the lower end of the shaft barrel, sliding grooves are formed in one ends, away from the shaft barrel, of the extension plates, positioning rods are slidably connected in the sliding grooves, vacuum suckers are fixedly connected to the positioning rods, the vacuum suckers are connected with curtain wall aluminum plate bodies, air cylinders are connected between the vacuum suckers and the extension plates, an electromotor is fixedly connected to the upper end of a connecting piece, the power output end of the electromotor is fixedly connected with a transmission shaft, the transmission shaft is in threaded connection with a threaded sleeve, the threaded sleeve is slidably connected inthe shaft barrel, the lower end of the threaded sleeve is fixedly connected with a push plate matched with the vacuum suckers, and the push plate is provided with the connecting piece matched with thecurtain wall aluminum plate bodies, thus, the aluminum plate can be guaranteed to be tightly spliced, the splicing work is all carried out on one device, and the working efficiency is easy to improve.
Owner:徐宁

Phthalonitrile-terminated polyaryletherketone resin and preparation method thereof

InactiveCN106947076AImprove glass transition temperature and mechanical strengthNot easy to voidTemperature resistancePhthalonitrile
The invention relates to a polyaryletherketone resin and a preparation method thereof, particularly a phthalonitrile-terminated polyaryletherketone resin and a preparation method thereof, belonging to the technical field of high-molecular materials. The invention provides a polyaryletherketone resin of which the structure is disclosed in the specification. In the structural formula of the phthalonitrile terminated polyaryletherketone resin, m+n=1, 0<m<1, and 0<n<1. The invention also provides a preparation method of the phthalonitrile-terminated polyaryletherketone resin. The method comprises the steps of (1) synthesis of hydroxyl-terminated polyaryletherketone and (2) synthesis of phthalonitrile-terminated polyaryletherketone. Bisphenol S is introduced to the main chain of the polyaryletherketones, and a crosslinking group bis-phthalonitrile is introduced to the chain end, thereby obtaining the crosslinking function on the premise of facilitating the processing due to the decrease of the melting point of the polyaryletherketones; and thus, the crosslinked polyaryletherketones can obtain the application temperature of a thermosetting engineering material by a thermoplastic engineering material processing technique, thereby opening up a new way for application of polyaryletherketones in the field of high temperature resistance.
Owner:深圳市源沣石油化工有限公司

Plasterboard pouring device

The invention provides an anti-deformation gypsum board drying device which comprises a stirring mechanism, a storing box, a pulp discharging mechanism, a vibrating mechanism, a forming mechanism, a machine table, a roller, a bracket, an upper paper winding rotary shaft, a lower paper winding rotary shaft, a speed measuring mechanism and a controller, wherein the stirring mechanism communicates with the storing box; the storing box communicates with the pulp discharging mechanism; the forming mechanism is fixed on the machine table; the roller is rotatably connected onto the machine table; thevibrating mechanism is arranged on one side of the machine table; the bracket is fixed on one side of the vibrating mechanism; the stirring mechanism and the storing box are arranged on the bracket;and the upper paper winding rotary shaft and the lower paper winding rotary shaft are rotatably connected onto the bracket. The anti-deformation gypsum board drying device can utilize the speed measuring mechanism to measure the moving speed of a gypsum board; and the controller controls the pumping speed of a metering pump to be matched with the moving speed of the gypsum board according to the speed value, so that the machined gypsum board is uniform in thickness and high in quality.
Owner:梦牌新材料(平邑)有限公司

Interlayer film for laminated glass and laminated glass

The present invention provides an interlayer film for laminated glass that is less likely to generate voids at the end of a laminated glass and can suppress an increase in the YI value at the end of the laminated glass. The intermediate film for laminated glass of the present invention has a one-layer structure or a structure of two or more layers, wherein the entire intermediate film contains polyvinyl acetal resin, a plasticizer, a hindered amine light stabilizer, and a phosphorus-containing antioxidant. When the intermediate film has only the first layer, the glass transition temperature of the first layer is 32°C or higher; when the intermediate film has the first layer and the second layer, with or without the third layer, the second The glass transition temperature of at least one of the layer and the third layer is 32° C. or higher.
Owner:SEKISUI CHEM CO LTD

System for separating concrete with different strength grades in beam-column joint core area and application

The invention provides a system for separating concrete with different strength grades in a beam-column joint core area and application. The beam-column joint core area further comprises a horizontally-arranged beam formwork and a plurality of beam ribs arranged in the beam formwork. The separating system comprises air inflation rods, an air pipeline, an air compressor, a fixing piece and a limiting frame. Each air inflation rod is in a long strip shape and comprises an air bag and an air nozzle, the air bags are connected with the air nozzles, the air nozzles are detachably connected with one end of an air pipeline, and the other end of the air pipeline is connected with the air compressor. The limiting frame is arranged on the beam-column joint core area, is positioned above the beam formwork and is used for separating and limiting the concrete with different strength grades; the multiple air inflation rods are inserted in parallel on the beam formwork on the outer side of the limiting frame, and are fixed to the beam ribs through fixing pieces; and the lengths of the air inflation rods are greater than the depth of the beam formwork. The system for separating the concrete with different strength grades in the beam-column joint core area has the advantages of simple on-site construction operation, reusability, cost saving and the like.
Owner:福建建工工程集团有限公司 +1

A method for efficiently preparing ternary diffusion couples

The invention discloses a method for efficiently preparing a ternary diffusion couple. The method comprises the following steps of firstly preparing a binary diffusion couple of a component A and a component B by a clamp method, then placing the prepared binary diffusion couple into a mold, adding a block-shaped component C to be diffused, covering with a graphite crucible cover, placing the graphite crucible cover into a muffle furnace, heating the graphite crucible cover to a temperature above the melting point of the component C to melt the component C, cooling the component C to a heat treatment temperature, keeping the temperature, and performing water quenching to obtain the ternary diffusion couple. The ternary diffusion couple is prepared by utilizing the contraction force when metal solidifies, and diffusion couple interfaces prepared by the method are tightly combined, so that the problem of high probability of holes at node positions of the diffusion couple when the ternarydiffusion couple is prepared is solved. The method is simple in preparation process, gaps are not easily generated between the interfaces, and the success rate of preparing the diffusion couple is high. The method is suitable for the preparation of diffusion couples of metal materials, and the prepared diffusion couples can be used for the study of phase diagrams, diffusion kinetics and thermodynamics.
Owner:YUNNAN PRECIOUS METALS LAB CO LTD

A splicing device and splicing method for building curtain wall aluminum panels

The invention discloses a splicing device of a building curtain wall aluminum plate and a splicing method thereof, and belongs to the field of curtain wall splicing devices. The splicing device of thebuilding curtain wall aluminum plate comprises a shaft barrel, two pairs of extension plates are fixed to the lower end of the shaft barrel, sliding grooves are formed in one ends, away from the shaft barrel, of the extension plates, positioning rods are slidably connected in the sliding grooves, vacuum suckers are fixedly connected to the positioning rods, the vacuum suckers are connected with curtain wall aluminum plate bodies, air cylinders are connected between the vacuum suckers and the extension plates, an electromotor is fixedly connected to the upper end of a connecting piece, the power output end of the electromotor is fixedly connected with a transmission shaft, the transmission shaft is in threaded connection with a threaded sleeve, the threaded sleeve is slidably connected inthe shaft barrel, the lower end of the threaded sleeve is fixedly connected with a push plate matched with the vacuum suckers, and the push plate is provided with the connecting piece matched with thecurtain wall aluminum plate bodies, thus, the aluminum plate can be guaranteed to be tightly spliced, the splicing work is all carried out on one device, and the working efficiency is easy to improve.
Owner:徐宁

Interlayer film for laminated glass and laminated glass

The present invention provides an interlayer film for laminated glass, which is less likely to cause voids at the edge of the laminated glass, and which can suppress an increase in the YI value of the edge of the laminated glass. The interlayer film for laminated glass of the present invention has a structure of one layer or two or more layers, and the entire interlayer film contains a polyvinyl acetal resin, a plasticizer, a hindered amine light stabilizer, and a phosphorus-containing antioxidant.
Owner:SEKISUI CHEM CO LTD

Resin molded article for sealing optical semiconductor, optical semiconductor sealing material, and optical semiconductor device

The invention relates to a resin molded article for sealing an optical semiconductor, an optical semiconductor sealing material, and an optical semiconductor device. Provided are: a resin molded article for sealing an optical semiconductor, which is not susceptible to cracks and is not susceptible to voids during molding; an optical semiconductor sealing material obtained using the resin molded article for sealing an optical semiconductor; and an optical semiconductor device. The resin molded article for sealing an optical semiconductor is used in an optical semiconductor sealing material in which the thickness of the thinnest portion is 300 [mu]m or less, and which has a compression ratio of 90% or more and a proportion of particles having a particle diameter of 125 [mu]m or less in the resin molded article for sealing an optical semiconductor of 15% or less.
Owner:NITTO DENKO CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products