30results about How to "Reduce stress differential" patented technology

A multi-chip module is proposed, which is designed to pack two or more semi-conductor chips in a stacked manner over a chip carrier in a single package. The multi-chip module is characterized by the use of adhesive with fillers to allow the topmost chip (i.e. the second chip) superimposed to the bottommost chip (i.e. the first chip) after the first chip electrically connected to the chip carrier. The thickness of the adhesive layer depends on the diameter of the fillers higher than loop height of the bonding wires that is positioned above the active surface of the first chip to prevent the bonding wires connected to the first chip to come in contact with the overlaid chip.

The invention discloses an edible fungus dried air circulation treatment device which comprises a baking chamber, an air treatment unit, an air supply header pipe, an air mixing device, and an air supply pore plate and an air return pore plate which are arranged in the baking chamber in parallel, wherein the baking chamber is segmented into an air supply static pressure space, an air return static pressure space and a baking workshop; the air treatment unit consists of an air inlet, a solid adsorption and dehumidification device, a heat pump loop, a fan, an auxiliary electric heater and an air outlet; the heat pump loop consists of a condenser and three groups of compressors and an evaporator assembly which are arranged in parallel; and the compressors and the evaporator assembly comprise an expansion valve, an evaporator and compressors which are sequentially connected. By employing the parallel air supply mode and the general-branch-general-branch refrigerant distribution mode, the air distribution is improved, and the uniformity and stability of the air flow and temperature field in the baking chamber during operation are guaranteed, so that the consistency of the baking effect is guaranteed, and the energy consumption in the process of operating the baking chamber at a low load is reduced.

An elliptical coned disc spring can be accommodated in a rectangular installation space, can yield non-linear load characteristics, and can reduce stress differences between a bending part at a long radial part side and a bending part at a short radial part side. An elliptical coned disc spring has a body in which an outer circumference is an ellipse in a disc shape. A hole is formed at the center of the body. The hole may have various shapes such as a circle, an ellipse, etc. The body has a long radial part 111 and a short radial part. A plate width of the long radial part is set to be greater than a plate width of the short radial part (that is, a>b).

The present invention discloses a laminating apparatus for a solar assembly. The laminating apparatus comprises a substrate and a pressing plate; a hydraulic cylinder drives the pressing plate to move up and down, so that the substrate and the pressing plate can be pressed together; the bottom surface of the pressing plate is provided with a silica gel film; the surface of the substrate is provided with a plurality of pushing pins; a cushion is laid on the pushing pins; mounting holes are arranged formed in the substrate; the pushing pins are installed in the mounting holes through lifting rods; the bottoms of the lifting rods are provided with heat insulating sleeves; electric heating wires are arranged in the substrate; the bottoms of the mounting holes are provided with spiral oil guiding tubes; annular grooves are formed at the tops of the mounting holes; the edges of the pushing pins are provided with metal elastic sheets through first springs; the external sides of the metal elastic sheets are provided with silica gel dumping cushions; the edge of the pressing plate is provided with slide rails; a clamping block is slidingly arranged in each slide rail; each clamping block is connected with a corresponding first air cylinder; and the clamping blocks are fixedly held at the edge of the silica gel film. With the laminating apparatus of the invention adopted, defects in the prior art can be eliminated, and the heating and pressure uniformity of components in a laminating process can be improved, and the yield of products can be improved.

The present disclosure provides a mask assembly and a method for manufacturing the same, and a display device. The mask assembly includes a frame, a first mask and a second mask, and the first mask and the second mask are superposed on the frame; the first mask includes an opening region, the second mask includes an evaporation region in which a first evaporation hole is provided for allowing an evaporation material to pass therethrough and a buffer region surrounding the evaporation region and configured to block off the evaporation material, and an orthographic projection of the boundary of the opening region onto the second mask is located within the buffer region.

An elliptical coned disc spring can be accommodated in a rectangular installation space, can yield non-linear load characteristics, and can reduce stress differences between a bending part at a long radial part side and a bending part at a short radial part side. An elliptical coned disc spring has a body in which an outer circumference is an ellipse in a disc shape. A hole is formed at the center of the body. The hole may have various shapes such as a circle, an ellipse, etc. The body has a long radial part 111 and a short radial part. A plate width of the long radial part is set to be greater than a plate width of the short radial part (that is, a>b).

A substrate is provided with a substrate main body made from silicon, and an oxide film for a base formed thereon. The oxide film includes a first oxide film made mainly of a thermal SiO2 film formed by thermally oxidizing silicon in the substrate main body, and a second oxide film made of a high-temperature oxide film deposited and formed thereon. Alternatively the second oxide film may be formed by TEOS.

A method for mitigating line-edge roughness on a semiconductor device. The method includes line-edge roughness mitigation techniques in accordance with embodiments of the present invention. The techniques include: reducing the SiON film thickness below a conventional thickness; increasing the photoresist thickness above a conventional thickness; etching the SiON film with an etch bias power less than a conventional wattage amount with an overetch percentage less than a conventional overetch percentage; removing the SiON film layer immediately after completion of the amorphous carbon film layer etching; and lowering the lower electrode temperature below a conventional temperature.

A spark plug includes a metal shell, a ground electrode joined to a front end portion of the metal shell and a nickel layer formed on the ground electrode, wherein the ground electrode has a base material exposed region in which a base material of the ground electrode is exposed; and wherein the nickel layer includes an outer-lateral-side nickel layer located on an outer lateral surface of the ground electrode at a position adjacent to the base material exposed region and satisfies a condition of LA≧25 μm, where LA is a length from a first part of the outer-lateral-side nickel layer having a thickness equal to 80% of a maximum thickness of the outer-lateral-side nickel layer to a second part of the outer-lateral-side nickel layer having a thickness equal to 20% of the maximum thickness of the outer-lateral-side nickel layer in a longitudinal direction of the ground electrode.

The invention discloses a performance testing device for a food refrigerator, which comprises a box body, a top cover of the box body, an air handling unit, an air supply main pipe, an air mixing device, and an air supply orifice plate and a return air orifice plate arranged in parallel in the box body. The air orifice plate and the return air orifice divide the box into three areas, which are the air supply static pressure space and the return air static pressure space on both sides, and the test environment room in the middle; the air handling unit is located in the return air static pressure space Among them, the air handling unit communicates with the air supply static pressure space through the air supply main pipe, and the air mixing device is arranged in the air supply main pipe pipeline. The present invention adopts the way of parallel air supply to improve the airflow organization, which can ensure the uniformity and stability of the air flow and temperature and humidity in the test room during the test, can truly simulate the normal working environment of the food freezer, and ensure that the temperature, humidity and wind speed distribution in the test room reach JB / T ? 7244-1994 "Food Freezer" series standard requirements.

The present disclosure provides a mask assembly and a method for manufacturing the same, and a display device. The mask assembly includes a frame, a first mask and a second mask, and the first mask and the second mask are superposed on the frame; the first mask includes an opening region, the second mask includes an evaporation region in which a first evaporation hole is provided for allowing an evaporation material to pass therethrough and a buffer region surrounding the evaporation region and configured to block off the evaporation material, and an orthographic projection of the boundary of the opening region onto the second mask is located within the buffer region.

A sputtering target contains high purity Nb of which Ta content is 3000 ppm or less and oxygen content is 200 ppm or less. Dispersion of the Ta content in all the sputtering target is within ±30% as a whole target. Dispersion of the oxygen content is within ±80% as a whole target. According to such sputtering target, an interconnection film of low resistivity can be realized. In addition, each grain of Nb in the sputtering target has a grain diameter in the range of 0.1 to 10 times an average grain diameter and ratios of grain sizes of adjacent grains are in the range of 0.1 to 10. According to such sputtering target, giant dust can be largely suppressed from occurring. The sputtering target is suitable for forming a Nb film as liner material of an Al interconnection.

The invention discloses a drying surface parallel air supply type domestic fungus heat pump drying apparatus. The apparatus comprises an enclosing structure, a variable cross section air supply static pressure space, a drying area, a variable cross section air return static pressure space, an air treatment device, and an air supply main tube arranged at the upper portion of the enclosing structure, an air supply non-uniform orifice plate and an air return non-uniform orifice plate which are vertically arranged divide a space below the air supply main tube into the variable cross section air supply static pressure space, the drying area and the variable cross section air return static pressure space which are sequentially arranged along the airflow direction, and the air treatment device is arranged at the outer side of the variable cross section air supply static pressure space; and a group of air supply holes and a group of air return holes are arranged above each of layers of storage plates arranged in the drying area. Drying surface parallel air supply is adopted to improve the drying airflow distribution, so the uniformity and the stability of airflow in the drying surface are guaranteed, the drying efficiency is improved, and energy consumption is reduced.

The invention discloses an edible fungus dried air circulation treatment device which comprises a baking chamber, an air treatment unit, an air supply header pipe, an air mixing device, and an air supply pore plate and an air return pore plate which are arranged in the baking chamber in parallel, wherein the baking chamber is segmented into an air supply static pressure space, an air return static pressure space and a baking workshop; the air treatment unit consists of an air inlet, a solid adsorption and dehumidification device, a heat pump loop, a fan, an auxiliary electric heater and an air outlet; the heat pump loop consists of a condenser and three groups of compressors and an evaporator assembly which are arranged in parallel; and the compressors and the evaporator assembly comprise an expansion valve, an evaporator and compressors which are sequentially connected. By employing the parallel air supply mode and the general-branch-general-branch refrigerant distribution mode, the air distribution is improved, and the uniformity and stability of the air flow and temperature field in the baking chamber during operation are guaranteed, so that the consistency of the baking effect is guaranteed, and the energy consumption in the process of operating the baking chamber at a low load is reduced.

The present invention discloses a laminating apparatus for a solar assembly. The laminating apparatus comprises a substrate and a pressing plate; a hydraulic cylinder drives the pressing plate to move up and down, so that the substrate and the pressing plate can be pressed together; the bottom surface of the pressing plate is provided with a silica gel film; the surface of the substrate is provided with a plurality of pushing pins; a cushion is laid on the pushing pins; mounting holes are arranged formed in the substrate; the pushing pins are installed in the mounting holes through lifting rods; the bottoms of the lifting rods are provided with heat insulating sleeves; electric heating wires are arranged in the substrate; the bottoms of the mounting holes are provided with spiral oil guiding tubes; annular grooves are formed at the tops of the mounting holes; the edges of the pushing pins are provided with metal elastic sheets through first springs; the external sides of the metal elastic sheets are provided with silica gel dumping cushions; the edge of the pressing plate is provided with slide rails; a clamping block is slidingly arranged in each slide rail; each clamping block is connected with a corresponding first air cylinder; and the clamping blocks are fixedly held at the edge of the silica gel film. With the laminating apparatus of the invention adopted, defects in the prior art can be eliminated, and the heating and pressure uniformity of components in a laminating process can be improved, and the yield of products can be improved.

The invention discloses a device of a parallel air supply type for testing the performance of a foodstuff refrigerator, and the device comprises a fence structure, a variable cross-section air supply static pressure space, a testing environment space, a variable cross-section air-turn static pressure space, an air processing apparatus, and an air supply header pipe disposed at the upper part of the fence structure. A non-uniform air supply pore plate and a non-uniform air return pore plate, which are arranged vertically, enable the lower space of the air supply header pipe to be sequentially divided into the variable cross-section air supply static pressure space, the testing environment space and the variable cross-section air-turn static pressure space in the direction of an air flow. The air processing apparatus is disposed at an outer side of the variable cross-section air-turn static pressure space. The device improves air distribution through parallel air supply, can guarantee that the air flow and temperature and humidity in in the testing space during testing to be uniform and stable, truly simulates the normal working environment of the foodstuff refrigerator, guarantees that the temperature and humidity and wind speed in the testing space meet the requirements of the JB / T 7244-1994 foodstuff refrigerator series standard.

The invention discloses vertical ventilation type heat pump thermostatic equipment. The equipment comprises a building envelope, a variable cross-section air supply static pressure space, drying areas, a variable cross-section air return static pressure space and an air treatment device. The lower portion of the variable cross-section air supply static pressure space is divided into three layers of drying areas in the airflow direction by an air supply non-uniform pore plate and an air return non-uniform pore plate which are horizontally arranged. The air treatment device is arranged on the outer side of the variable cross-section air return static pressure space. A group of air supply holes is arranged on the upper portion of the interior of each drying room on the top layer of each drying area, and air return holes are arranged below the drying room on the bottommost layer of each drying area. According to the equipment, dry air distribution is improved by means of vertical ventilation of a dry surface, uniformity and stability of airflow on the dry surface are guaranteed, drying efficiency is improved, and energy consumption is reduced.

The invention provides a method for improving local deformation of a high-energy-density soft-packed ion battery and the battery, comprising: setting protective glue parameters and pasting protective glue on positive and negative pole pieces according to the protective glue parameters; using the positive pole piece pasted with protective glue Prepare winding cores with negative electrode sheets, and prepare the winding cores into batteries according to the battery preparation process; use a high-temperature pressurized forming cabinet to perform a formation operation on the batteries, and collect the batteries during the formation operations The thickness of multiple positions, according to the thickness of multiple positions of the battery, adjust the post-forming surface pressure of the battery; calculate the free electrolyte coefficient of the formed battery and set the vacuum according to the free electrolyte coefficient Time, according to the vacuuming time, vacuumize the battery cells that have been formed, and use the vacuumized battery cells to prepare lithium-ion batteries. The invention can obviously reduce the local deformation of the battery and enhance the service performance of the battery.

The present invention provides a means for feeding a food material, which can reduce change of a pressure added to the food material in an exit side passage, when the food material is continuously feed into the exit side passage with a vane pump as a means for feeding the food material such as the dough or bean jam. In addition, the invention relates to a device for extruding bar-like food dough and a device for packing bean jam, the device for packing bean jam uses the means for feeding a food material.

The present invention discloses a lower air supply and upper air return vertical air returning heat pump constant temperature device including an exterior-protected structure, a variable cross-section air supply static pressure space, a drying device, a variable cross-section air return static pressure space, and an air handling device. An air supply pore plate is arranged at the top of the exterior-protected structure. A drying zone is formed by a horizontally arranged air supply non-uniform pore plate and an air return non-uniform pore plate of the space between the air supply plate and an air return plate. Each layer of an object placing plate arranged in the drying zone is provided with a set of air supply holes and a set of air return holes. The heat pump constant temperature device employs drying surfaces to vertically supply air to improve drying airflow distribution, ensures uniform and stable airflow on the drying surfaces, increases drying efficiency, reduces energy consumption, and promotes air circulation.